whmcsProxmoxAddon/templates/client/default/assets/js/chart.min.js

/*!
 * Chart.js
 * http://chartjs.org/
 * Version: 2.7.2
 *
 * Copyright 2018 Chart.js Contributors
 * Released under the MIT license
 * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
 */
(function (f) {
    if (typeof exports === "object" && typeof module !== "undefined") {
        module.exports = f()
    } else if (typeof define === "function" && define.amd) {
        define([], f)
    } else {
        var g;
        if (typeof window !== "undefined") {
            g = window
        } else if (typeof global !== "undefined") {
            g = global
        } else if (typeof self !== "undefined") {
            g = self
        } else {
            g = this
        }
        g.Chart = f()
    }
})(function () {
    var define, module, exports;
    return (function () {
        function e(t, n, r) {
            function s(o, u) {
                if (!n[o]) {
                    if (!t[o]) {
                        var a = typeof require == "function" && require;
                        if (!u && a)
                            return a(o, !0);
                        if (i)
                            return i(o, !0);
                        var f = new Error("Cannot find module '" + o + "'");
                        throw f.code = "MODULE_NOT_FOUND", f
                    }
                    var l = n[o] = {exports: {}};
                    t[o][0].call(l.exports, function (e) {
                        var n = t[o][1][e];
                        return s(n ? n : e)
                    }, l, l.exports, e, t, n, r)
                }
                return n[o].exports
            }
            var i = typeof require == "function" && require;
            for (var o = 0; o < r.length; o++)
                s(r[o]);
            return s
        }
        return e
    })()({1: [function (require, module, exports) {

            }, {}], 2: [function (require, module, exports) {
                /* MIT license */
                var colorNames = require(6);

                module.exports = {
                    getRgba: getRgba,
                    getHsla: getHsla,
                    getRgb: getRgb,
                    getHsl: getHsl,
                    getHwb: getHwb,
                    getAlpha: getAlpha,

                    hexString: hexString,
                    rgbString: rgbString,
                    rgbaString: rgbaString,
                    percentString: percentString,
                    percentaString: percentaString,
                    hslString: hslString,
                    hslaString: hslaString,
                    hwbString: hwbString,
                    keyword: keyword
                }

                function getRgba(string) {
                    if (!string) {
                        return;
                    }
                    var abbr = /^#([a-fA-F0-9]{3})$/i,
                            hex = /^#([a-fA-F0-9]{6})$/i,
                            rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
                            per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
                            keyword = /(\w+)/;

                    var rgb = [0, 0, 0],
                            a = 1,
                            match = string.match(abbr);
                    if (match) {
                        match = match[1];
                        for (var i = 0; i < rgb.length; i++) {
                            rgb[i] = parseInt(match[i] + match[i], 16);
                        }
                    } else if (match = string.match(hex)) {
                        match = match[1];
                        for (var i = 0; i < rgb.length; i++) {
                            rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
                        }
                    } else if (match = string.match(rgba)) {
                        for (var i = 0; i < rgb.length; i++) {
                            rgb[i] = parseInt(match[i + 1]);
                        }
                        a = parseFloat(match[4]);
                    } else if (match = string.match(per)) {
                        for (var i = 0; i < rgb.length; i++) {
                            rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
                        }
                        a = parseFloat(match[4]);
                    } else if (match = string.match(keyword)) {
                        if (match[1] == "transparent") {
                            return [0, 0, 0, 0];
                        }
                        rgb = colorNames[match[1]];
                        if (!rgb) {
                            return;
                        }
                    }

                    for (var i = 0; i < rgb.length; i++) {
                        rgb[i] = scale(rgb[i], 0, 255);
                    }
                    if (!a && a != 0) {
                        a = 1;
                    } else {
                        a = scale(a, 0, 1);
                    }
                    rgb[3] = a;
                    return rgb;
                }

                function getHsla(string) {
                    if (!string) {
                        return;
                    }
                    var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
                    var match = string.match(hsl);
                    if (match) {
                        var alpha = parseFloat(match[4]);
                        var h = scale(parseInt(match[1]), 0, 360),
                                s = scale(parseFloat(match[2]), 0, 100),
                                l = scale(parseFloat(match[3]), 0, 100),
                                a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
                        return [h, s, l, a];
                    }
                }

                function getHwb(string) {
                    if (!string) {
                        return;
                    }
                    var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
                    var match = string.match(hwb);
                    if (match) {
                        var alpha = parseFloat(match[4]);
                        var h = scale(parseInt(match[1]), 0, 360),
                                w = scale(parseFloat(match[2]), 0, 100),
                                b = scale(parseFloat(match[3]), 0, 100),
                                a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
                        return [h, w, b, a];
                    }
                }

                function getRgb(string) {
                    var rgba = getRgba(string);
                    return rgba && rgba.slice(0, 3);
                }

                function getHsl(string) {
                    var hsla = getHsla(string);
                    return hsla && hsla.slice(0, 3);
                }

                function getAlpha(string) {
                    var vals = getRgba(string);
                    if (vals) {
                        return vals[3];
                    } else if (vals = getHsla(string)) {
                        return vals[3];
                    } else if (vals = getHwb(string)) {
                        return vals[3];
                    }
                }

// generators
                function hexString(rgb) {
                    return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
                            + hexDouble(rgb[2]);
                }

                function rgbString(rgba, alpha) {
                    if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
                        return rgbaString(rgba, alpha);
                    }
                    return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
                }

                function rgbaString(rgba, alpha) {
                    if (alpha === undefined) {
                        alpha = (rgba[3] !== undefined ? rgba[3] : 1);
                    }
                    return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
                            + ", " + alpha + ")";
                }

                function percentString(rgba, alpha) {
                    if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
                        return percentaString(rgba, alpha);
                    }
                    var r = Math.round(rgba[0] / 255 * 100),
                            g = Math.round(rgba[1] / 255 * 100),
                            b = Math.round(rgba[2] / 255 * 100);

                    return "rgb(" + r + "%, " + g + "%, " + b + "%)";
                }

                function percentaString(rgba, alpha) {
                    var r = Math.round(rgba[0] / 255 * 100),
                            g = Math.round(rgba[1] / 255 * 100),
                            b = Math.round(rgba[2] / 255 * 100);
                    return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
                }

                function hslString(hsla, alpha) {
                    if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
                        return hslaString(hsla, alpha);
                    }
                    return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
                }

                function hslaString(hsla, alpha) {
                    if (alpha === undefined) {
                        alpha = (hsla[3] !== undefined ? hsla[3] : 1);
                    }
                    return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
                            + alpha + ")";
                }

// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
// (hwb have alpha optional & 1 is default value)
                function hwbString(hwb, alpha) {
                    if (alpha === undefined) {
                        alpha = (hwb[3] !== undefined ? hwb[3] : 1);
                    }
                    return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
                            + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
                }

                function keyword(rgb) {
                    return reverseNames[rgb.slice(0, 3)];
                }

// helpers
                function scale(num, min, max) {
                    return Math.min(Math.max(min, num), max);
                }

                function hexDouble(num) {
                    var str = num.toString(16).toUpperCase();
                    return (str.length < 2) ? "0" + str : str;
                }


//create a list of reverse color names
                var reverseNames = {};
                for (var name in colorNames) {
                    reverseNames[colorNames[name]] = name;
                }

            }, {"6": 6}], 3: [function (require, module, exports) {
                /* MIT license */
                var convert = require(5);
                var string = require(2);

                var Color = function (obj) {
                    if (obj instanceof Color) {
                        return obj;
                    }
                    if (!(this instanceof Color)) {
                        return new Color(obj);
                    }

                    this.valid = false;
                    this.values = {
                        rgb: [0, 0, 0],
                        hsl: [0, 0, 0],
                        hsv: [0, 0, 0],
                        hwb: [0, 0, 0],
                        cmyk: [0, 0, 0, 0],
                        alpha: 1
                    };

                    // parse Color() argument
                    var vals;
                    if (typeof obj === 'string') {
                        vals = string.getRgba(obj);
                        if (vals) {
                            this.setValues('rgb', vals);
                        } else if (vals = string.getHsla(obj)) {
                            this.setValues('hsl', vals);
                        } else if (vals = string.getHwb(obj)) {
                            this.setValues('hwb', vals);
                        }
                    } else if (typeof obj === 'object') {
                        vals = obj;
                        if (vals.r !== undefined || vals.red !== undefined) {
                            this.setValues('rgb', vals);
                        } else if (vals.l !== undefined || vals.lightness !== undefined) {
                            this.setValues('hsl', vals);
                        } else if (vals.v !== undefined || vals.value !== undefined) {
                            this.setValues('hsv', vals);
                        } else if (vals.w !== undefined || vals.whiteness !== undefined) {
                            this.setValues('hwb', vals);
                        } else if (vals.c !== undefined || vals.cyan !== undefined) {
                            this.setValues('cmyk', vals);
                        }
                    }
                };

                Color.prototype = {
                    isValid: function () {
                        return this.valid;
                    },
                    rgb: function () {
                        return this.setSpace('rgb', arguments);
                    },
                    hsl: function () {
                        return this.setSpace('hsl', arguments);
                    },
                    hsv: function () {
                        return this.setSpace('hsv', arguments);
                    },
                    hwb: function () {
                        return this.setSpace('hwb', arguments);
                    },
                    cmyk: function () {
                        return this.setSpace('cmyk', arguments);
                    },

                    rgbArray: function () {
                        return this.values.rgb;
                    },
                    hslArray: function () {
                        return this.values.hsl;
                    },
                    hsvArray: function () {
                        return this.values.hsv;
                    },
                    hwbArray: function () {
                        var values = this.values;
                        if (values.alpha !== 1) {
                            return values.hwb.concat([values.alpha]);
                        }
                        return values.hwb;
                    },
                    cmykArray: function () {
                        return this.values.cmyk;
                    },
                    rgbaArray: function () {
                        var values = this.values;
                        return values.rgb.concat([values.alpha]);
                    },
                    hslaArray: function () {
                        var values = this.values;
                        return values.hsl.concat([values.alpha]);
                    },
                    alpha: function (val) {
                        if (val === undefined) {
                            return this.values.alpha;
                        }
                        this.setValues('alpha', val);
                        return this;
                    },

                    red: function (val) {
                        return this.setChannel('rgb', 0, val);
                    },
                    green: function (val) {
                        return this.setChannel('rgb', 1, val);
                    },
                    blue: function (val) {
                        return this.setChannel('rgb', 2, val);
                    },
                    hue: function (val) {
                        if (val) {
                            val %= 360;
                            val = val < 0 ? 360 + val : val;
                        }
                        return this.setChannel('hsl', 0, val);
                    },
                    saturation: function (val) {
                        return this.setChannel('hsl', 1, val);
                    },
                    lightness: function (val) {
                        return this.setChannel('hsl', 2, val);
                    },
                    saturationv: function (val) {
                        return this.setChannel('hsv', 1, val);
                    },
                    whiteness: function (val) {
                        return this.setChannel('hwb', 1, val);
                    },
                    blackness: function (val) {
                        return this.setChannel('hwb', 2, val);
                    },
                    value: function (val) {
                        return this.setChannel('hsv', 2, val);
                    },
                    cyan: function (val) {
                        return this.setChannel('cmyk', 0, val);
                    },
                    magenta: function (val) {
                        return this.setChannel('cmyk', 1, val);
                    },
                    yellow: function (val) {
                        return this.setChannel('cmyk', 2, val);
                    },
                    black: function (val) {
                        return this.setChannel('cmyk', 3, val);
                    },

                    hexString: function () {
                        return string.hexString(this.values.rgb);
                    },
                    rgbString: function () {
                        return string.rgbString(this.values.rgb, this.values.alpha);
                    },
                    rgbaString: function () {
                        return string.rgbaString(this.values.rgb, this.values.alpha);
                    },
                    percentString: function () {
                        return string.percentString(this.values.rgb, this.values.alpha);
                    },
                    hslString: function () {
                        return string.hslString(this.values.hsl, this.values.alpha);
                    },
                    hslaString: function () {
                        return string.hslaString(this.values.hsl, this.values.alpha);
                    },
                    hwbString: function () {
                        return string.hwbString(this.values.hwb, this.values.alpha);
                    },
                    keyword: function () {
                        return string.keyword(this.values.rgb, this.values.alpha);
                    },

                    rgbNumber: function () {
                        var rgb = this.values.rgb;
                        return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
                    },

                    luminosity: function () {
                        // http://www.w3.org/TR/WCAG20/#relativeluminancedef
                        var rgb = this.values.rgb;
                        var lum = [];
                        for (var i = 0; i < rgb.length; i++) {
                            var chan = rgb[i] / 255;
                            lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
                        }
                        return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
                    },

                    contrast: function (color2) {
                        // http://www.w3.org/TR/WCAG20/#contrast-ratiodef
                        var lum1 = this.luminosity();
                        var lum2 = color2.luminosity();
                        if (lum1 > lum2) {
                            return (lum1 + 0.05) / (lum2 + 0.05);
                        }
                        return (lum2 + 0.05) / (lum1 + 0.05);
                    },

                    level: function (color2) {
                        var contrastRatio = this.contrast(color2);
                        if (contrastRatio >= 7.1) {
                            return 'AAA';
                        }

                        return (contrastRatio >= 4.5) ? 'AA' : '';
                    },

                    dark: function () {
                        // YIQ equation from http://24ways.org/2010/calculating-color-contrast
                        var rgb = this.values.rgb;
                        var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
                        return yiq < 128;
                    },

                    light: function () {
                        return !this.dark();
                    },

                    negate: function () {
                        var rgb = [];
                        for (var i = 0; i < 3; i++) {
                            rgb[i] = 255 - this.values.rgb[i];
                        }
                        this.setValues('rgb', rgb);
                        return this;
                    },

                    lighten: function (ratio) {
                        var hsl = this.values.hsl;
                        hsl[2] += hsl[2] * ratio;
                        this.setValues('hsl', hsl);
                        return this;
                    },

                    darken: function (ratio) {
                        var hsl = this.values.hsl;
                        hsl[2] -= hsl[2] * ratio;
                        this.setValues('hsl', hsl);
                        return this;
                    },

                    saturate: function (ratio) {
                        var hsl = this.values.hsl;
                        hsl[1] += hsl[1] * ratio;
                        this.setValues('hsl', hsl);
                        return this;
                    },

                    desaturate: function (ratio) {
                        var hsl = this.values.hsl;
                        hsl[1] -= hsl[1] * ratio;
                        this.setValues('hsl', hsl);
                        return this;
                    },

                    whiten: function (ratio) {
                        var hwb = this.values.hwb;
                        hwb[1] += hwb[1] * ratio;
                        this.setValues('hwb', hwb);
                        return this;
                    },

                    blacken: function (ratio) {
                        var hwb = this.values.hwb;
                        hwb[2] += hwb[2] * ratio;
                        this.setValues('hwb', hwb);
                        return this;
                    },

                    greyscale: function () {
                        var rgb = this.values.rgb;
                        // http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
                        var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
                        this.setValues('rgb', [val, val, val]);
                        return this;
                    },

                    clearer: function (ratio) {
                        var alpha = this.values.alpha;
                        this.setValues('alpha', alpha - (alpha * ratio));
                        return this;
                    },

                    opaquer: function (ratio) {
                        var alpha = this.values.alpha;
                        this.setValues('alpha', alpha + (alpha * ratio));
                        return this;
                    },

                    rotate: function (degrees) {
                        var hsl = this.values.hsl;
                        var hue = (hsl[0] + degrees) % 360;
                        hsl[0] = hue < 0 ? 360 + hue : hue;
                        this.setValues('hsl', hsl);
                        return this;
                    },

                    /**
                     * Ported from sass implementation in C
                     * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
                     */
                    mix: function (mixinColor, weight) {
                        var color1 = this;
                        var color2 = mixinColor;
                        var p = weight === undefined ? 0.5 : weight;

                        var w = 2 * p - 1;
                        var a = color1.alpha() - color2.alpha();

                        var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
                        var w2 = 1 - w1;

                        return this
                                .rgb(
                                        w1 * color1.red() + w2 * color2.red(),
                                        w1 * color1.green() + w2 * color2.green(),
                                        w1 * color1.blue() + w2 * color2.blue()
                                        )
                                .alpha(color1.alpha() * p + color2.alpha() * (1 - p));
                    },

                    toJSON: function () {
                        return this.rgb();
                    },

                    clone: function () {
                        // NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
                        // making the final build way to big to embed in Chart.js. So let's do it manually,
                        // assuming that values to clone are 1 dimension arrays containing only numbers,
                        // except 'alpha' which is a number.
                        var result = new Color();
                        var source = this.values;
                        var target = result.values;
                        var value, type;

                        for (var prop in source) {
                            if (source.hasOwnProperty(prop)) {
                                value = source[prop];
                                type = ({}).toString.call(value);
                                if (type === '[object Array]') {
                                    target[prop] = value.slice(0);
                                } else if (type === '[object Number]') {
                                    target[prop] = value;
                                } else {
                                    console.error('unexpected color value:', value);
                                }
                            }
                        }

                        return result;
                    }
                };

                Color.prototype.spaces = {
                    rgb: ['red', 'green', 'blue'],
                    hsl: ['hue', 'saturation', 'lightness'],
                    hsv: ['hue', 'saturation', 'value'],
                    hwb: ['hue', 'whiteness', 'blackness'],
                    cmyk: ['cyan', 'magenta', 'yellow', 'black']
                };

                Color.prototype.maxes = {
                    rgb: [255, 255, 255],
                    hsl: [360, 100, 100],
                    hsv: [360, 100, 100],
                    hwb: [360, 100, 100],
                    cmyk: [100, 100, 100, 100]
                };

                Color.prototype.getValues = function (space) {
                    var values = this.values;
                    var vals = {};

                    for (var i = 0; i < space.length; i++) {
                        vals[space.charAt(i)] = values[space][i];
                    }

                    if (values.alpha !== 1) {
                        vals.a = values.alpha;
                    }

                    // {r: 255, g: 255, b: 255, a: 0.4}
                    return vals;
                };

                Color.prototype.setValues = function (space, vals) {
                    var values = this.values;
                    var spaces = this.spaces;
                    var maxes = this.maxes;
                    var alpha = 1;
                    var i;

                    this.valid = true;

                    if (space === 'alpha') {
                        alpha = vals;
                    } else if (vals.length) {
                        // [10, 10, 10]
                        values[space] = vals.slice(0, space.length);
                        alpha = vals[space.length];
                    } else if (vals[space.charAt(0)] !== undefined) {
                        // {r: 10, g: 10, b: 10}
                        for (i = 0; i < space.length; i++) {
                            values[space][i] = vals[space.charAt(i)];
                        }

                        alpha = vals.a;
                    } else if (vals[spaces[space][0]] !== undefined) {
                        // {red: 10, green: 10, blue: 10}
                        var chans = spaces[space];

                        for (i = 0; i < space.length; i++) {
                            values[space][i] = vals[chans[i]];
                        }

                        alpha = vals.alpha;
                    }

                    values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));

                    if (space === 'alpha') {
                        return false;
                    }

                    var capped;

                    // cap values of the space prior converting all values
                    for (i = 0; i < space.length; i++) {
                        capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
                        values[space][i] = Math.round(capped);
                    }

                    // convert to all the other color spaces
                    for (var sname in spaces) {
                        if (sname !== space) {
                            values[sname] = convert[space][sname](values[space]);
                        }
                    }

                    return true;
                };

                Color.prototype.setSpace = function (space, args) {
                    var vals = args[0];

                    if (vals === undefined) {
                        // color.rgb()
                        return this.getValues(space);
                    }

                    // color.rgb(10, 10, 10)
                    if (typeof vals === 'number') {
                        vals = Array.prototype.slice.call(args);
                    }

                    this.setValues(space, vals);
                    return this;
                };

                Color.prototype.setChannel = function (space, index, val) {
                    var svalues = this.values[space];
                    if (val === undefined) {
                        // color.red()
                        return svalues[index];
                    } else if (val === svalues[index]) {
                        // color.red(color.red())
                        return this;
                    }

                    // color.red(100)
                    svalues[index] = val;
                    this.setValues(space, svalues);

                    return this;
                };

                if (typeof window !== 'undefined') {
                    window.Color = Color;
                }

                module.exports = Color;

            }, {"2": 2, "5": 5}], 4: [function (require, module, exports) {
                /* MIT license */

                module.exports = {
                    rgb2hsl: rgb2hsl,
                    rgb2hsv: rgb2hsv,
                    rgb2hwb: rgb2hwb,
                    rgb2cmyk: rgb2cmyk,
                    rgb2keyword: rgb2keyword,
                    rgb2xyz: rgb2xyz,
                    rgb2lab: rgb2lab,
                    rgb2lch: rgb2lch,

                    hsl2rgb: hsl2rgb,
                    hsl2hsv: hsl2hsv,
                    hsl2hwb: hsl2hwb,
                    hsl2cmyk: hsl2cmyk,
                    hsl2keyword: hsl2keyword,

                    hsv2rgb: hsv2rgb,
                    hsv2hsl: hsv2hsl,
                    hsv2hwb: hsv2hwb,
                    hsv2cmyk: hsv2cmyk,
                    hsv2keyword: hsv2keyword,

                    hwb2rgb: hwb2rgb,
                    hwb2hsl: hwb2hsl,
                    hwb2hsv: hwb2hsv,
                    hwb2cmyk: hwb2cmyk,
                    hwb2keyword: hwb2keyword,

                    cmyk2rgb: cmyk2rgb,
                    cmyk2hsl: cmyk2hsl,
                    cmyk2hsv: cmyk2hsv,
                    cmyk2hwb: cmyk2hwb,
                    cmyk2keyword: cmyk2keyword,

                    keyword2rgb: keyword2rgb,
                    keyword2hsl: keyword2hsl,
                    keyword2hsv: keyword2hsv,
                    keyword2hwb: keyword2hwb,
                    keyword2cmyk: keyword2cmyk,
                    keyword2lab: keyword2lab,
                    keyword2xyz: keyword2xyz,

                    xyz2rgb: xyz2rgb,
                    xyz2lab: xyz2lab,
                    xyz2lch: xyz2lch,

                    lab2xyz: lab2xyz,
                    lab2rgb: lab2rgb,
                    lab2lch: lab2lch,

                    lch2lab: lch2lab,
                    lch2xyz: lch2xyz,
                    lch2rgb: lch2rgb
                }


                function rgb2hsl(rgb) {
                    var r = rgb[0] / 255,
                            g = rgb[1] / 255,
                            b = rgb[2] / 255,
                            min = Math.min(r, g, b),
                            max = Math.max(r, g, b),
                            delta = max - min,
                            h, s, l;

                    if (max == min)
                        h = 0;
                    else if (r == max)
                        h = (g - b) / delta;
                    else if (g == max)
                        h = 2 + (b - r) / delta;
                    else if (b == max)
                        h = 4 + (r - g) / delta;

                    h = Math.min(h * 60, 360);

                    if (h < 0)
                        h += 360;

                    l = (min + max) / 2;

                    if (max == min)
                        s = 0;
                    else if (l <= 0.5)
                        s = delta / (max + min);
                    else
                        s = delta / (2 - max - min);

                    return [h, s * 100, l * 100];
                }

                function rgb2hsv(rgb) {
                    var r = rgb[0],
                            g = rgb[1],
                            b = rgb[2],
                            min = Math.min(r, g, b),
                            max = Math.max(r, g, b),
                            delta = max - min,
                            h, s, v;

                    if (max == 0)
                        s = 0;
                    else
                        s = (delta / max * 1000) / 10;

                    if (max == min)
                        h = 0;
                    else if (r == max)
                        h = (g - b) / delta;
                    else if (g == max)
                        h = 2 + (b - r) / delta;
                    else if (b == max)
                        h = 4 + (r - g) / delta;

                    h = Math.min(h * 60, 360);

                    if (h < 0)
                        h += 360;

                    v = ((max / 255) * 1000) / 10;

                    return [h, s, v];
                }

                function rgb2hwb(rgb) {
                    var r = rgb[0],
                            g = rgb[1],
                            b = rgb[2],
                            h = rgb2hsl(rgb)[0],
                            w = 1 / 255 * Math.min(r, Math.min(g, b)),
                            b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));

                    return [h, w * 100, b * 100];
                }

                function rgb2cmyk(rgb) {
                    var r = rgb[0] / 255,
                            g = rgb[1] / 255,
                            b = rgb[2] / 255,
                            c, m, y, k;

                    k = Math.min(1 - r, 1 - g, 1 - b);
                    c = (1 - r - k) / (1 - k) || 0;
                    m = (1 - g - k) / (1 - k) || 0;
                    y = (1 - b - k) / (1 - k) || 0;
                    return [c * 100, m * 100, y * 100, k * 100];
                }

                function rgb2keyword(rgb) {
                    return reverseKeywords[JSON.stringify(rgb)];
                }

                function rgb2xyz(rgb) {
                    var r = rgb[0] / 255,
                            g = rgb[1] / 255,
                            b = rgb[2] / 255;

                    // assume sRGB
                    r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
                    g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
                    b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);

                    var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
                    var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
                    var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

                    return [x * 100, y * 100, z * 100];
                }

                function rgb2lab(rgb) {
                    var xyz = rgb2xyz(rgb),
                            x = xyz[0],
                            y = xyz[1],
                            z = xyz[2],
                            l, a, b;

                    x /= 95.047;
                    y /= 100;
                    z /= 108.883;

                    x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
                    y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
                    z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

                    l = (116 * y) - 16;
                    a = 500 * (x - y);
                    b = 200 * (y - z);

                    return [l, a, b];
                }

                function rgb2lch(args) {
                    return lab2lch(rgb2lab(args));
                }

                function hsl2rgb(hsl) {
                    var h = hsl[0] / 360,
                            s = hsl[1] / 100,
                            l = hsl[2] / 100,
                            t1, t2, t3, rgb, val;

                    if (s == 0) {
                        val = l * 255;
                        return [val, val, val];
                    }

                    if (l < 0.5)
                        t2 = l * (1 + s);
                    else
                        t2 = l + s - l * s;
                    t1 = 2 * l - t2;

                    rgb = [0, 0, 0];
                    for (var i = 0; i < 3; i++) {
                        t3 = h + 1 / 3 * -(i - 1);
                        t3 < 0 && t3++;
                        t3 > 1 && t3--;

                        if (6 * t3 < 1)
                            val = t1 + (t2 - t1) * 6 * t3;
                        else if (2 * t3 < 1)
                            val = t2;
                        else if (3 * t3 < 2)
                            val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
                        else
                            val = t1;

                        rgb[i] = val * 255;
                    }

                    return rgb;
                }

                function hsl2hsv(hsl) {
                    var h = hsl[0],
                            s = hsl[1] / 100,
                            l = hsl[2] / 100,
                            sv, v;

                    if (l === 0) {
                        // no need to do calc on black
                        // also avoids divide by 0 error
                        return [0, 0, 0];
                    }

                    l *= 2;
                    s *= (l <= 1) ? l : 2 - l;
                    v = (l + s) / 2;
                    sv = (2 * s) / (l + s);
                    return [h, sv * 100, v * 100];
                }

                function hsl2hwb(args) {
                    return rgb2hwb(hsl2rgb(args));
                }

                function hsl2cmyk(args) {
                    return rgb2cmyk(hsl2rgb(args));
                }

                function hsl2keyword(args) {
                    return rgb2keyword(hsl2rgb(args));
                }


                function hsv2rgb(hsv) {
                    var h = hsv[0] / 60,
                            s = hsv[1] / 100,
                            v = hsv[2] / 100,
                            hi = Math.floor(h) % 6;

                    var f = h - Math.floor(h),
                            p = 255 * v * (1 - s),
                            q = 255 * v * (1 - (s * f)),
                            t = 255 * v * (1 - (s * (1 - f))),
                            v = 255 * v;

                    switch (hi) {
                        case 0:
                            return [v, t, p];
                        case 1:
                            return [q, v, p];
                        case 2:
                            return [p, v, t];
                        case 3:
                            return [p, q, v];
                        case 4:
                            return [t, p, v];
                        case 5:
                            return [v, p, q];
                    }
                }

                function hsv2hsl(hsv) {
                    var h = hsv[0],
                            s = hsv[1] / 100,
                            v = hsv[2] / 100,
                            sl, l;

                    l = (2 - s) * v;
                    sl = s * v;
                    sl /= (l <= 1) ? l : 2 - l;
                    sl = sl || 0;
                    l /= 2;
                    return [h, sl * 100, l * 100];
                }

                function hsv2hwb(args) {
                    return rgb2hwb(hsv2rgb(args))
                }

                function hsv2cmyk(args) {
                    return rgb2cmyk(hsv2rgb(args));
                }

                function hsv2keyword(args) {
                    return rgb2keyword(hsv2rgb(args));
                }

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
                function hwb2rgb(hwb) {
                    var h = hwb[0] / 360,
                            wh = hwb[1] / 100,
                            bl = hwb[2] / 100,
                            ratio = wh + bl,
                            i, v, f, n;

                    // wh + bl cant be > 1
                    if (ratio > 1) {
                        wh /= ratio;
                        bl /= ratio;
                    }

                    i = Math.floor(6 * h);
                    v = 1 - bl;
                    f = 6 * h - i;
                    if ((i & 0x01) != 0) {
                        f = 1 - f;
                    }
                    n = wh + f * (v - wh);  // linear interpolation

                    switch (i) {
                        default:
                        case 6:
                        case 0:
                            r = v;
                            g = n;
                            b = wh;
                            break;
                        case 1:
                            r = n;
                            g = v;
                            b = wh;
                            break;
                        case 2:
                            r = wh;
                            g = v;
                            b = n;
                            break;
                        case 3:
                            r = wh;
                            g = n;
                            b = v;
                            break;
                        case 4:
                            r = n;
                            g = wh;
                            b = v;
                            break;
                        case 5:
                            r = v;
                            g = wh;
                            b = n;
                            break;
                    }

                    return [r * 255, g * 255, b * 255];
                }

                function hwb2hsl(args) {
                    return rgb2hsl(hwb2rgb(args));
                }

                function hwb2hsv(args) {
                    return rgb2hsv(hwb2rgb(args));
                }

                function hwb2cmyk(args) {
                    return rgb2cmyk(hwb2rgb(args));
                }

                function hwb2keyword(args) {
                    return rgb2keyword(hwb2rgb(args));
                }

                function cmyk2rgb(cmyk) {
                    var c = cmyk[0] / 100,
                            m = cmyk[1] / 100,
                            y = cmyk[2] / 100,
                            k = cmyk[3] / 100,
                            r, g, b;

                    r = 1 - Math.min(1, c * (1 - k) + k);
                    g = 1 - Math.min(1, m * (1 - k) + k);
                    b = 1 - Math.min(1, y * (1 - k) + k);
                    return [r * 255, g * 255, b * 255];
                }

                function cmyk2hsl(args) {
                    return rgb2hsl(cmyk2rgb(args));
                }

                function cmyk2hsv(args) {
                    return rgb2hsv(cmyk2rgb(args));
                }

                function cmyk2hwb(args) {
                    return rgb2hwb(cmyk2rgb(args));
                }

                function cmyk2keyword(args) {
                    return rgb2keyword(cmyk2rgb(args));
                }


                function xyz2rgb(xyz) {
                    var x = xyz[0] / 100,
                            y = xyz[1] / 100,
                            z = xyz[2] / 100,
                            r, g, b;

                    r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
                    g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
                    b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

                    // assume sRGB
                    r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
                            : r = (r * 12.92);

                    g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
                            : g = (g * 12.92);

                    b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
                            : b = (b * 12.92);

                    r = Math.min(Math.max(0, r), 1);
                    g = Math.min(Math.max(0, g), 1);
                    b = Math.min(Math.max(0, b), 1);

                    return [r * 255, g * 255, b * 255];
                }

                function xyz2lab(xyz) {
                    var x = xyz[0],
                            y = xyz[1],
                            z = xyz[2],
                            l, a, b;

                    x /= 95.047;
                    y /= 100;
                    z /= 108.883;

                    x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
                    y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
                    z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);

                    l = (116 * y) - 16;
                    a = 500 * (x - y);
                    b = 200 * (y - z);

                    return [l, a, b];
                }

                function xyz2lch(args) {
                    return lab2lch(xyz2lab(args));
                }

                function lab2xyz(lab) {
                    var l = lab[0],
                            a = lab[1],
                            b = lab[2],
                            x, y, z, y2;

                    if (l <= 8) {
                        y = (l * 100) / 903.3;
                        y2 = (7.787 * (y / 100)) + (16 / 116);
                    } else {
                        y = 100 * Math.pow((l + 16) / 116, 3);
                        y2 = Math.pow(y / 100, 1 / 3);
                    }

                    x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);

                    z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);

                    return [x, y, z];
                }

                function lab2lch(lab) {
                    var l = lab[0],
                            a = lab[1],
                            b = lab[2],
                            hr, h, c;

                    hr = Math.atan2(b, a);
                    h = hr * 360 / 2 / Math.PI;
                    if (h < 0) {
                        h += 360;
                    }
                    c = Math.sqrt(a * a + b * b);
                    return [l, c, h];
                }

                function lab2rgb(args) {
                    return xyz2rgb(lab2xyz(args));
                }

                function lch2lab(lch) {
                    var l = lch[0],
                            c = lch[1],
                            h = lch[2],
                            a, b, hr;

                    hr = h / 360 * 2 * Math.PI;
                    a = c * Math.cos(hr);
                    b = c * Math.sin(hr);
                    return [l, a, b];
                }

                function lch2xyz(args) {
                    return lab2xyz(lch2lab(args));
                }

                function lch2rgb(args) {
                    return lab2rgb(lch2lab(args));
                }

                function keyword2rgb(keyword) {
                    return cssKeywords[keyword];
                }

                function keyword2hsl(args) {
                    return rgb2hsl(keyword2rgb(args));
                }

                function keyword2hsv(args) {
                    return rgb2hsv(keyword2rgb(args));
                }

                function keyword2hwb(args) {
                    return rgb2hwb(keyword2rgb(args));
                }

                function keyword2cmyk(args) {
                    return rgb2cmyk(keyword2rgb(args));
                }

                function keyword2lab(args) {
                    return rgb2lab(keyword2rgb(args));
                }

                function keyword2xyz(args) {
                    return rgb2xyz(keyword2rgb(args));
                }

                var cssKeywords = {
                    aliceblue: [240, 248, 255],
                    antiquewhite: [250, 235, 215],
                    aqua: [0, 255, 255],
                    aquamarine: [127, 255, 212],
                    azure: [240, 255, 255],
                    beige: [245, 245, 220],
                    bisque: [255, 228, 196],
                    black: [0, 0, 0],
                    blanchedalmond: [255, 235, 205],
                    blue: [0, 0, 255],
                    blueviolet: [138, 43, 226],
                    brown: [165, 42, 42],
                    burlywood: [222, 184, 135],
                    cadetblue: [95, 158, 160],
                    chartreuse: [127, 255, 0],
                    chocolate: [210, 105, 30],
                    coral: [255, 127, 80],
                    cornflowerblue: [100, 149, 237],
                    cornsilk: [255, 248, 220],
                    crimson: [220, 20, 60],
                    cyan: [0, 255, 255],
                    darkblue: [0, 0, 139],
                    darkcyan: [0, 139, 139],
                    darkgoldenrod: [184, 134, 11],
                    darkgray: [169, 169, 169],
                    darkgreen: [0, 100, 0],
                    darkgrey: [169, 169, 169],
                    darkkhaki: [189, 183, 107],
                    darkmagenta: [139, 0, 139],
                    darkolivegreen: [85, 107, 47],
                    darkorange: [255, 140, 0],
                    darkorchid: [153, 50, 204],
                    darkred: [139, 0, 0],
                    darksalmon: [233, 150, 122],
                    darkseagreen: [143, 188, 143],
                    darkslateblue: [72, 61, 139],
                    darkslategray: [47, 79, 79],
                    darkslategrey: [47, 79, 79],
                    darkturquoise: [0, 206, 209],
                    darkviolet: [148, 0, 211],
                    deeppink: [255, 20, 147],
                    deepskyblue: [0, 191, 255],
                    dimgray: [105, 105, 105],
                    dimgrey: [105, 105, 105],
                    dodgerblue: [30, 144, 255],
                    firebrick: [178, 34, 34],
                    floralwhite: [255, 250, 240],
                    forestgreen: [34, 139, 34],
                    fuchsia: [255, 0, 255],
                    gainsboro: [220, 220, 220],
                    ghostwhite: [248, 248, 255],
                    gold: [255, 215, 0],
                    goldenrod: [218, 165, 32],
                    gray: [128, 128, 128],
                    green: [0, 128, 0],
                    greenyellow: [173, 255, 47],
                    grey: [128, 128, 128],
                    honeydew: [240, 255, 240],
                    hotpink: [255, 105, 180],
                    indianred: [205, 92, 92],
                    indigo: [75, 0, 130],
                    ivory: [255, 255, 240],
                    khaki: [240, 230, 140],
                    lavender: [230, 230, 250],
                    lavenderblush: [255, 240, 245],
                    lawngreen: [124, 252, 0],
                    lemonchiffon: [255, 250, 205],
                    lightblue: [173, 216, 230],
                    lightcoral: [240, 128, 128],
                    lightcyan: [224, 255, 255],
                    lightgoldenrodyellow: [250, 250, 210],
                    lightgray: [211, 211, 211],
                    lightgreen: [144, 238, 144],
                    lightgrey: [211, 211, 211],
                    lightpink: [255, 182, 193],
                    lightsalmon: [255, 160, 122],
                    lightseagreen: [32, 178, 170],
                    lightskyblue: [135, 206, 250],
                    lightslategray: [119, 136, 153],
                    lightslategrey: [119, 136, 153],
                    lightsteelblue: [176, 196, 222],
                    lightyellow: [255, 255, 224],
                    lime: [0, 255, 0],
                    limegreen: [50, 205, 50],
                    linen: [250, 240, 230],
                    magenta: [255, 0, 255],
                    maroon: [128, 0, 0],
                    mediumaquamarine: [102, 205, 170],
                    mediumblue: [0, 0, 205],
                    mediumorchid: [186, 85, 211],
                    mediumpurple: [147, 112, 219],
                    mediumseagreen: [60, 179, 113],
                    mediumslateblue: [123, 104, 238],
                    mediumspringgreen: [0, 250, 154],
                    mediumturquoise: [72, 209, 204],
                    mediumvioletred: [199, 21, 133],
                    midnightblue: [25, 25, 112],
                    mintcream: [245, 255, 250],
                    mistyrose: [255, 228, 225],
                    moccasin: [255, 228, 181],
                    navajowhite: [255, 222, 173],
                    navy: [0, 0, 128],
                    oldlace: [253, 245, 230],
                    olive: [128, 128, 0],
                    olivedrab: [107, 142, 35],
                    orange: [255, 165, 0],
                    orangered: [255, 69, 0],
                    orchid: [218, 112, 214],
                    palegoldenrod: [238, 232, 170],
                    palegreen: [152, 251, 152],
                    paleturquoise: [175, 238, 238],
                    palevioletred: [219, 112, 147],
                    papayawhip: [255, 239, 213],
                    peachpuff: [255, 218, 185],
                    peru: [205, 133, 63],
                    pink: [255, 192, 203],
                    plum: [221, 160, 221],
                    powderblue: [176, 224, 230],
                    purple: [128, 0, 128],
                    rebeccapurple: [102, 51, 153],
                    red: [255, 0, 0],
                    rosybrown: [188, 143, 143],
                    royalblue: [65, 105, 225],
                    saddlebrown: [139, 69, 19],
                    salmon: [250, 128, 114],
                    sandybrown: [244, 164, 96],
                    seagreen: [46, 139, 87],
                    seashell: [255, 245, 238],
                    sienna: [160, 82, 45],
                    silver: [192, 192, 192],
                    skyblue: [135, 206, 235],
                    slateblue: [106, 90, 205],
                    slategray: [112, 128, 144],
                    slategrey: [112, 128, 144],
                    snow: [255, 250, 250],
                    springgreen: [0, 255, 127],
                    steelblue: [70, 130, 180],
                    tan: [210, 180, 140],
                    teal: [0, 128, 128],
                    thistle: [216, 191, 216],
                    tomato: [255, 99, 71],
                    turquoise: [64, 224, 208],
                    violet: [238, 130, 238],
                    wheat: [245, 222, 179],
                    white: [255, 255, 255],
                    whitesmoke: [245, 245, 245],
                    yellow: [255, 255, 0],
                    yellowgreen: [154, 205, 50]
                };

                var reverseKeywords = {};
                for (var key in cssKeywords) {
                    reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
                }

            }, {}], 5: [function (require, module, exports) {
                var conversions = require(4);

                var convert = function () {
                    return new Converter();
                }

                for (var func in conversions) {
                    // export Raw versions
                    convert[func + "Raw"] = (function (func) {
                        // accept array or plain args
                        return function (arg) {
                            if (typeof arg == "number")
                                arg = Array.prototype.slice.call(arguments);
                            return conversions[func](arg);
                        }
                    })(func);

                    var pair = /(\w+)2(\w+)/.exec(func),
                            from = pair[1],
                            to = pair[2];

                    // export rgb2hsl and ["rgb"]["hsl"]
                    convert[from] = convert[from] || {};

                    convert[from][to] = convert[func] = (function (func) {
                        return function (arg) {
                            if (typeof arg == "number")
                                arg = Array.prototype.slice.call(arguments);

                            var val = conversions[func](arg);
                            if (typeof val == "string" || val === undefined)
                                return val; // keyword

                            for (var i = 0; i < val.length; i++)
                                val[i] = Math.round(val[i]);
                            return val;
                        }
                    })(func);
                }


                /* Converter does lazy conversion and caching */
                var Converter = function () {
                    this.convs = {};
                };

                /* Either get the values for a space or
                 set the values for a space, depending on args */
                Converter.prototype.routeSpace = function (space, args) {
                    var values = args[0];
                    if (values === undefined) {
                        // color.rgb()
                        return this.getValues(space);
                    }
                    // color.rgb(10, 10, 10)
                    if (typeof values == "number") {
                        values = Array.prototype.slice.call(args);
                    }

                    return this.setValues(space, values);
                };

                /* Set the values for a space, invalidating cache */
                Converter.prototype.setValues = function (space, values) {
                    this.space = space;
                    this.convs = {};
                    this.convs[space] = values;
                    return this;
                };

                /* Get the values for a space. If there's already
                 a conversion for the space, fetch it, otherwise
                 compute it */
                Converter.prototype.getValues = function (space) {
                    var vals = this.convs[space];
                    if (!vals) {
                        var fspace = this.space,
                                from = this.convs[fspace];
                        vals = convert[fspace][space](from);

                        this.convs[space] = vals;
                    }
                    return vals;
                };

                ["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function (space) {
                    Converter.prototype[space] = function (vals) {
                        return this.routeSpace(space, arguments);
                    }
                });

                module.exports = convert;
            }, {"4": 4}], 6: [function (require, module, exports) {
                'use strict'

                module.exports = {
                    "aliceblue": [240, 248, 255],
                    "antiquewhite": [250, 235, 215],
                    "aqua": [0, 255, 255],
                    "aquamarine": [127, 255, 212],
                    "azure": [240, 255, 255],
                    "beige": [245, 245, 220],
                    "bisque": [255, 228, 196],
                    "black": [0, 0, 0],
                    "blanchedalmond": [255, 235, 205],
                    "blue": [0, 0, 255],
                    "blueviolet": [138, 43, 226],
                    "brown": [165, 42, 42],
                    "burlywood": [222, 184, 135],
                    "cadetblue": [95, 158, 160],
                    "chartreuse": [127, 255, 0],
                    "chocolate": [210, 105, 30],
                    "coral": [255, 127, 80],
                    "cornflowerblue": [100, 149, 237],
                    "cornsilk": [255, 248, 220],
                    "crimson": [220, 20, 60],
                    "cyan": [0, 255, 255],
                    "darkblue": [0, 0, 139],
                    "darkcyan": [0, 139, 139],
                    "darkgoldenrod": [184, 134, 11],
                    "darkgray": [169, 169, 169],
                    "darkgreen": [0, 100, 0],
                    "darkgrey": [169, 169, 169],
                    "darkkhaki": [189, 183, 107],
                    "darkmagenta": [139, 0, 139],
                    "darkolivegreen": [85, 107, 47],
                    "darkorange": [255, 140, 0],
                    "darkorchid": [153, 50, 204],
                    "darkred": [139, 0, 0],
                    "darksalmon": [233, 150, 122],
                    "darkseagreen": [143, 188, 143],
                    "darkslateblue": [72, 61, 139],
                    "darkslategray": [47, 79, 79],
                    "darkslategrey": [47, 79, 79],
                    "darkturquoise": [0, 206, 209],
                    "darkviolet": [148, 0, 211],
                    "deeppink": [255, 20, 147],
                    "deepskyblue": [0, 191, 255],
                    "dimgray": [105, 105, 105],
                    "dimgrey": [105, 105, 105],
                    "dodgerblue": [30, 144, 255],
                    "firebrick": [178, 34, 34],
                    "floralwhite": [255, 250, 240],
                    "forestgreen": [34, 139, 34],
                    "fuchsia": [255, 0, 255],
                    "gainsboro": [220, 220, 220],
                    "ghostwhite": [248, 248, 255],
                    "gold": [255, 215, 0],
                    "goldenrod": [218, 165, 32],
                    "gray": [128, 128, 128],
                    "green": [0, 128, 0],
                    "greenyellow": [173, 255, 47],
                    "grey": [128, 128, 128],
                    "honeydew": [240, 255, 240],
                    "hotpink": [255, 105, 180],
                    "indianred": [205, 92, 92],
                    "indigo": [75, 0, 130],
                    "ivory": [255, 255, 240],
                    "khaki": [240, 230, 140],
                    "lavender": [230, 230, 250],
                    "lavenderblush": [255, 240, 245],
                    "lawngreen": [124, 252, 0],
                    "lemonchiffon": [255, 250, 205],
                    "lightblue": [173, 216, 230],
                    "lightcoral": [240, 128, 128],
                    "lightcyan": [224, 255, 255],
                    "lightgoldenrodyellow": [250, 250, 210],
                    "lightgray": [211, 211, 211],
                    "lightgreen": [144, 238, 144],
                    "lightgrey": [211, 211, 211],
                    "lightpink": [255, 182, 193],
                    "lightsalmon": [255, 160, 122],
                    "lightseagreen": [32, 178, 170],
                    "lightskyblue": [135, 206, 250],
                    "lightslategray": [119, 136, 153],
                    "lightslategrey": [119, 136, 153],
                    "lightsteelblue": [176, 196, 222],
                    "lightyellow": [255, 255, 224],
                    "lime": [0, 255, 0],
                    "limegreen": [50, 205, 50],
                    "linen": [250, 240, 230],
                    "magenta": [255, 0, 255],
                    "maroon": [128, 0, 0],
                    "mediumaquamarine": [102, 205, 170],
                    "mediumblue": [0, 0, 205],
                    "mediumorchid": [186, 85, 211],
                    "mediumpurple": [147, 112, 219],
                    "mediumseagreen": [60, 179, 113],
                    "mediumslateblue": [123, 104, 238],
                    "mediumspringgreen": [0, 250, 154],
                    "mediumturquoise": [72, 209, 204],
                    "mediumvioletred": [199, 21, 133],
                    "midnightblue": [25, 25, 112],
                    "mintcream": [245, 255, 250],
                    "mistyrose": [255, 228, 225],
                    "moccasin": [255, 228, 181],
                    "navajowhite": [255, 222, 173],
                    "navy": [0, 0, 128],
                    "oldlace": [253, 245, 230],
                    "olive": [128, 128, 0],
                    "olivedrab": [107, 142, 35],
                    "orange": [255, 165, 0],
                    "orangered": [255, 69, 0],
                    "orchid": [218, 112, 214],
                    "palegoldenrod": [238, 232, 170],
                    "palegreen": [152, 251, 152],
                    "paleturquoise": [175, 238, 238],
                    "palevioletred": [219, 112, 147],
                    "papayawhip": [255, 239, 213],
                    "peachpuff": [255, 218, 185],
                    "peru": [205, 133, 63],
                    "pink": [255, 192, 203],
                    "plum": [221, 160, 221],
                    "powderblue": [176, 224, 230],
                    "purple": [128, 0, 128],
                    "rebeccapurple": [102, 51, 153],
                    "red": [255, 0, 0],
                    "rosybrown": [188, 143, 143],
                    "royalblue": [65, 105, 225],
                    "saddlebrown": [139, 69, 19],
                    "salmon": [250, 128, 114],
                    "sandybrown": [244, 164, 96],
                    "seagreen": [46, 139, 87],
                    "seashell": [255, 245, 238],
                    "sienna": [160, 82, 45],
                    "silver": [192, 192, 192],
                    "skyblue": [135, 206, 235],
                    "slateblue": [106, 90, 205],
                    "slategray": [112, 128, 144],
                    "slategrey": [112, 128, 144],
                    "snow": [255, 250, 250],
                    "springgreen": [0, 255, 127],
                    "steelblue": [70, 130, 180],
                    "tan": [210, 180, 140],
                    "teal": [0, 128, 128],
                    "thistle": [216, 191, 216],
                    "tomato": [255, 99, 71],
                    "turquoise": [64, 224, 208],
                    "violet": [238, 130, 238],
                    "wheat": [245, 222, 179],
                    "white": [255, 255, 255],
                    "whitesmoke": [245, 245, 245],
                    "yellow": [255, 255, 0],
                    "yellowgreen": [154, 205, 50]
                };

            }, {}], 7: [function (require, module, exports) {
                /**
                 * @namespace Chart
                 */
                var Chart = require(29)();

                Chart.helpers = require(45);

// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
                require(27)(Chart);

                Chart.defaults = require(25);
                Chart.Element = require(26);
                Chart.elements = require(40);
                Chart.Interaction = require(28);
                Chart.layouts = require(30);
                Chart.platform = require(48);
                Chart.plugins = require(31);
                Chart.Ticks = require(34);

                require(22)(Chart);
                require(23)(Chart);
                require(24)(Chart);
                require(33)(Chart);
                require(32)(Chart);
                require(35)(Chart);

                require(55)(Chart);
                require(53)(Chart);
                require(54)(Chart);
                require(56)(Chart);
                require(57)(Chart);
                require(58)(Chart);

// Controllers must be loaded after elements
// See Chart.core.datasetController.dataElementType
                require(15)(Chart);
                require(16)(Chart);
                require(17)(Chart);
                require(18)(Chart);
                require(19)(Chart);
                require(20)(Chart);
                require(21)(Chart);

                require(8)(Chart);
                require(9)(Chart);
                require(10)(Chart);
                require(11)(Chart);
                require(12)(Chart);
                require(13)(Chart);
                require(14)(Chart);

// Loading built-it plugins
                var plugins = require(49);
                for (var k in plugins) {
                    if (plugins.hasOwnProperty(k)) {
                        Chart.plugins.register(plugins[k]);
                    }
                }

                Chart.platform.initialize();

                module.exports = Chart;
                if (typeof window !== 'undefined') {
                    window.Chart = Chart;
                }

// DEPRECATIONS

                /**
                 * Provided for backward compatibility, not available anymore
                 * @namespace Chart.Legend
                 * @deprecated since version 2.1.5
                 * @todo remove at version 3
                 * @private
                 */
                Chart.Legend = plugins.legend._element;

                /**
                 * Provided for backward compatibility, not available anymore
                 * @namespace Chart.Title
                 * @deprecated since version 2.1.5
                 * @todo remove at version 3
                 * @private
                 */
                Chart.Title = plugins.title._element;

                /**
                 * Provided for backward compatibility, use Chart.plugins instead
                 * @namespace Chart.pluginService
                 * @deprecated since version 2.1.5
                 * @todo remove at version 3
                 * @private
                 */
                Chart.pluginService = Chart.plugins;

                /**
                 * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
                 * effect, instead simply create/register plugins via plain JavaScript objects.
                 * @interface Chart.PluginBase
                 * @deprecated since version 2.5.0
                 * @todo remove at version 3
                 * @private
                 */
                Chart.PluginBase = Chart.Element.extend({});

                /**
                 * Provided for backward compatibility, use Chart.helpers.canvas instead.
                 * @namespace Chart.canvasHelpers
                 * @deprecated since version 2.6.0
                 * @todo remove at version 3
                 * @private
                 */
                Chart.canvasHelpers = Chart.helpers.canvas;

                /**
                 * Provided for backward compatibility, use Chart.layouts instead.
                 * @namespace Chart.layoutService
                 * @deprecated since version 2.8.0
                 * @todo remove at version 3
                 * @private
                 */
                Chart.layoutService = Chart.layouts;

            }, {"10": 10, "11": 11, "12": 12, "13": 13, "14": 14, "15": 15, "16": 16, "17": 17, "18": 18, "19": 19, "20": 20, "21": 21, "22": 22, "23": 23, "24": 24, "25": 25, "26": 26, "27": 27, "28": 28, "29": 29, "30": 30, "31": 31, "32": 32, "33": 33, "34": 34, "35": 35, "40": 40, "45": 45, "48": 48, "49": 49, "53": 53, "54": 54, "55": 55, "56": 56, "57": 57, "58": 58, "8": 8, "9": 9}], 8: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.Bar = function (context, config) {
                        config.type = 'bar';

                        return new Chart(context, config);
                    };

                };

            }, {}], 9: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.Bubble = function (context, config) {
                        config.type = 'bubble';
                        return new Chart(context, config);
                    };

                };

            }, {}], 10: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.Doughnut = function (context, config) {
                        config.type = 'doughnut';

                        return new Chart(context, config);
                    };

                };

            }, {}], 11: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.Line = function (context, config) {
                        config.type = 'line';

                        return new Chart(context, config);
                    };

                };

            }, {}], 12: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.PolarArea = function (context, config) {
                        config.type = 'polarArea';

                        return new Chart(context, config);
                    };

                };

            }, {}], 13: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    Chart.Radar = function (context, config) {
                        config.type = 'radar';

                        return new Chart(context, config);
                    };

                };

            }, {}], 14: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {
                    Chart.Scatter = function (context, config) {
                        config.type = 'scatter';
                        return new Chart(context, config);
                    };
                };

            }, {}], 15: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('bar', {
                    hover: {
                        mode: 'label'
                    },

                    scales: {
                        xAxes: [{
                                type: 'category',

                                // Specific to Bar Controller
                                categoryPercentage: 0.8,
                                barPercentage: 0.9,

                                // offset settings
                                offset: true,

                                // grid line settings
                                gridLines: {
                                    offsetGridLines: true
                                }
                            }],

                        yAxes: [{
                                type: 'linear'
                            }]
                    }
                });

                defaults._set('horizontalBar', {
                    hover: {
                        mode: 'index',
                        axis: 'y'
                    },

                    scales: {
                        xAxes: [{
                                type: 'linear',
                                position: 'bottom'
                            }],

                        yAxes: [{
                                position: 'left',
                                type: 'category',

                                // Specific to Horizontal Bar Controller
                                categoryPercentage: 0.8,
                                barPercentage: 0.9,

                                // offset settings
                                offset: true,

                                // grid line settings
                                gridLines: {
                                    offsetGridLines: true
                                }
                            }]
                    },

                    elements: {
                        rectangle: {
                            borderSkipped: 'left'
                        }
                    },

                    tooltips: {
                        callbacks: {
                            title: function (item, data) {
                                // Pick first xLabel for now
                                var title = '';

                                if (item.length > 0) {
                                    if (item[0].yLabel) {
                                        title = item[0].yLabel;
                                    } else if (data.labels.length > 0 && item[0].index < data.labels.length) {
                                        title = data.labels[item[0].index];
                                    }
                                }

                                return title;
                            },

                            label: function (item, data) {
                                var datasetLabel = data.datasets[item.datasetIndex].label || '';
                                return datasetLabel + ': ' + item.xLabel;
                            }
                        },
                        mode: 'index',
                        axis: 'y'
                    }
                });

                /**
                 * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
                 * @private
                 */
                function computeMinSampleSize(scale, pixels) {
                    var min = scale.isHorizontal() ? scale.width : scale.height;
                    var ticks = scale.getTicks();
                    var prev, curr, i, ilen;

                    for (i = 1, ilen = pixels.length; i < ilen; ++i) {
                        min = Math.min(min, pixels[i] - pixels[i - 1]);
                    }

                    for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                        curr = scale.getPixelForTick(i);
                        min = i > 0 ? Math.min(min, curr - prev) : min;
                        prev = curr;
                    }

                    return min;
                }

                /**
                 * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
                 * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
                 * mode currently always generates bars equally sized (until we introduce scriptable options?).
                 * @private
                 */
                function computeFitCategoryTraits(index, ruler, options) {
                    var thickness = options.barThickness;
                    var count = ruler.stackCount;
                    var curr = ruler.pixels[index];
                    var size, ratio;

                    if (helpers.isNullOrUndef(thickness)) {
                        size = ruler.min * options.categoryPercentage;
                        ratio = options.barPercentage;
                    } else {
                        // When bar thickness is enforced, category and bar percentages are ignored.
                        // Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
                        // and deprecate barPercentage since this value is ignored when thickness is absolute.
                        size = thickness * count;
                        ratio = 1;
                    }

                    return {
                        chunk: size / count,
                        ratio: ratio,
                        start: curr - (size / 2)
                    };
                }

                /**
                 * Computes an "optimal" category that globally arranges bars side by side (no gap when
                 * percentage options are 1), based on the previous and following categories. This mode
                 * generates bars with different widths when data are not evenly spaced.
                 * @private
                 */
                function computeFlexCategoryTraits(index, ruler, options) {
                    var pixels = ruler.pixels;
                    var curr = pixels[index];
                    var prev = index > 0 ? pixels[index - 1] : null;
                    var next = index < pixels.length - 1 ? pixels[index + 1] : null;
                    var percent = options.categoryPercentage;
                    var start, size;

                    if (prev === null) {
                        // first data: its size is double based on the next point or,
                        // if it's also the last data, we use the scale end extremity.
                        prev = curr - (next === null ? ruler.end - curr : next - curr);
                    }

                    if (next === null) {
                        // last data: its size is also double based on the previous point.
                        next = curr + curr - prev;
                    }

                    start = curr - ((curr - prev) / 2) * percent;
                    size = ((next - prev) / 2) * percent;

                    return {
                        chunk: size / ruler.stackCount,
                        ratio: options.barPercentage,
                        start: start
                    };
                }

                module.exports = function (Chart) {

                    Chart.controllers.bar = Chart.DatasetController.extend({

                        dataElementType: elements.Rectangle,

                        initialize: function () {
                            var me = this;
                            var meta;

                            Chart.DatasetController.prototype.initialize.apply(me, arguments);

                            meta = me.getMeta();
                            meta.stack = me.getDataset().stack;
                            meta.bar = true;
                        },

                        update: function (reset) {
                            var me = this;
                            var rects = me.getMeta().data;
                            var i, ilen;

                            me._ruler = me.getRuler();

                            for (i = 0, ilen = rects.length; i < ilen; ++i) {
                                me.updateElement(rects[i], i, reset);
                            }
                        },

                        updateElement: function (rectangle, index, reset) {
                            var me = this;
                            var chart = me.chart;
                            var meta = me.getMeta();
                            var dataset = me.getDataset();
                            var custom = rectangle.custom || {};
                            var rectangleOptions = chart.options.elements.rectangle;

                            rectangle._xScale = me.getScaleForId(meta.xAxisID);
                            rectangle._yScale = me.getScaleForId(meta.yAxisID);
                            rectangle._datasetIndex = me.index;
                            rectangle._index = index;

                            rectangle._model = {
                                datasetLabel: dataset.label,
                                label: chart.data.labels[index],
                                borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped,
                                backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor),
                                borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor),
                                borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth)
                            };

                            me.updateElementGeometry(rectangle, index, reset);

                            rectangle.pivot();
                        },

                        /**
                         * @private
                         */
                        updateElementGeometry: function (rectangle, index, reset) {
                            var me = this;
                            var model = rectangle._model;
                            var vscale = me.getValueScale();
                            var base = vscale.getBasePixel();
                            var horizontal = vscale.isHorizontal();
                            var ruler = me._ruler || me.getRuler();
                            var vpixels = me.calculateBarValuePixels(me.index, index);
                            var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);

                            model.horizontal = horizontal;
                            model.base = reset ? base : vpixels.base;
                            model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
                            model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
                            model.height = horizontal ? ipixels.size : undefined;
                            model.width = horizontal ? undefined : ipixels.size;
                        },

                        /**
                         * @private
                         */
                        getValueScaleId: function () {
                            return this.getMeta().yAxisID;
                        },

                        /**
                         * @private
                         */
                        getIndexScaleId: function () {
                            return this.getMeta().xAxisID;
                        },

                        /**
                         * @private
                         */
                        getValueScale: function () {
                            return this.getScaleForId(this.getValueScaleId());
                        },

                        /**
                         * @private
                         */
                        getIndexScale: function () {
                            return this.getScaleForId(this.getIndexScaleId());
                        },

                        /**
                         * Returns the stacks based on groups and bar visibility.
                         * @param {Number} [last] - The dataset index
                         * @returns {Array} The stack list
                         * @private
                         */
                        _getStacks: function (last) {
                            var me = this;
                            var chart = me.chart;
                            var scale = me.getIndexScale();
                            var stacked = scale.options.stacked;
                            var ilen = last === undefined ? chart.data.datasets.length : last + 1;
                            var stacks = [];
                            var i, meta;

                            for (i = 0; i < ilen; ++i) {
                                meta = chart.getDatasetMeta(i);
                                if (meta.bar && chart.isDatasetVisible(i) &&
                                        (stacked === false ||
                                                (stacked === true && stacks.indexOf(meta.stack) === -1) ||
                                                (stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
                                    stacks.push(meta.stack);
                                }
                            }

                            return stacks;
                        },

                        /**
                         * Returns the effective number of stacks based on groups and bar visibility.
                         * @private
                         */
                        getStackCount: function () {
                            return this._getStacks().length;
                        },

                        /**
                         * Returns the stack index for the given dataset based on groups and bar visibility.
                         * @param {Number} [datasetIndex] - The dataset index
                         * @param {String} [name] - The stack name to find
                         * @returns {Number} The stack index
                         * @private
                         */
                        getStackIndex: function (datasetIndex, name) {
                            var stacks = this._getStacks(datasetIndex);
                            var index = (name !== undefined)
                                    ? stacks.indexOf(name)
                                    : -1; // indexOf returns -1 if element is not present

                            return (index === -1)
                                    ? stacks.length - 1
                                    : index;
                        },

                        /**
                         * @private
                         */
                        getRuler: function () {
                            var me = this;
                            var scale = me.getIndexScale();
                            var stackCount = me.getStackCount();
                            var datasetIndex = me.index;
                            var isHorizontal = scale.isHorizontal();
                            var start = isHorizontal ? scale.left : scale.top;
                            var end = start + (isHorizontal ? scale.width : scale.height);
                            var pixels = [];
                            var i, ilen, min;

                            for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
                                pixels.push(scale.getPixelForValue(null, i, datasetIndex));
                            }

                            min = helpers.isNullOrUndef(scale.options.barThickness)
                                    ? computeMinSampleSize(scale, pixels)
                                    : -1;

                            return {
                                min: min,
                                pixels: pixels,
                                start: start,
                                end: end,
                                stackCount: stackCount,
                                scale: scale
                            };
                        },

                        /**
                         * Note: pixel values are not clamped to the scale area.
                         * @private
                         */
                        calculateBarValuePixels: function (datasetIndex, index) {
                            var me = this;
                            var chart = me.chart;
                            var meta = me.getMeta();
                            var scale = me.getValueScale();
                            var datasets = chart.data.datasets;
                            var value = scale.getRightValue(datasets[datasetIndex].data[index]);
                            var stacked = scale.options.stacked;
                            var stack = meta.stack;
                            var start = 0;
                            var i, imeta, ivalue, base, head, size;

                            if (stacked || (stacked === undefined && stack !== undefined)) {
                                for (i = 0; i < datasetIndex; ++i) {
                                    imeta = chart.getDatasetMeta(i);

                                    if (imeta.bar &&
                                            imeta.stack === stack &&
                                            imeta.controller.getValueScaleId() === scale.id &&
                                            chart.isDatasetVisible(i)) {

                                        ivalue = scale.getRightValue(datasets[i].data[index]);
                                        if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
                                            start += ivalue;
                                        }
                                    }
                                }
                            }

                            base = scale.getPixelForValue(start);
                            head = scale.getPixelForValue(start + value);
                            size = (head - base) / 2;

                            return {
                                size: size,
                                base: base,
                                head: head,
                                center: head + size / 2
                            };
                        },

                        /**
                         * @private
                         */
                        calculateBarIndexPixels: function (datasetIndex, index, ruler) {
                            var me = this;
                            var options = ruler.scale.options;
                            var range = options.barThickness === 'flex'
                                    ? computeFlexCategoryTraits(index, ruler, options)
                                    : computeFitCategoryTraits(index, ruler, options);

                            var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
                            var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
                            var size = Math.min(
                                    helpers.valueOrDefault(options.maxBarThickness, Infinity),
                                    range.chunk * range.ratio);

                            return {
                                base: center - size / 2,
                                head: center + size / 2,
                                center: center,
                                size: size
                            };
                        },

                        draw: function () {
                            var me = this;
                            var chart = me.chart;
                            var scale = me.getValueScale();
                            var rects = me.getMeta().data;
                            var dataset = me.getDataset();
                            var ilen = rects.length;
                            var i = 0;

                            helpers.canvas.clipArea(chart.ctx, chart.chartArea);

                            for (; i < ilen; ++i) {
                                if (!isNaN(scale.getRightValue(dataset.data[i]))) {
                                    rects[i].draw();
                                }
                            }

                            helpers.canvas.unclipArea(chart.ctx);
                        },

                        setHoverStyle: function (rectangle) {
                            var dataset = this.chart.data.datasets[rectangle._datasetIndex];
                            var index = rectangle._index;
                            var custom = rectangle.custom || {};
                            var model = rectangle._model;

                            model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                            model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                            model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
                        },

                        removeHoverStyle: function (rectangle) {
                            var dataset = this.chart.data.datasets[rectangle._datasetIndex];
                            var index = rectangle._index;
                            var custom = rectangle.custom || {};
                            var model = rectangle._model;
                            var rectangleElementOptions = this.chart.options.elements.rectangle;

                            model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor);
                            model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor);
                            model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth);
                        }
                    });

                    Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
                        /**
                         * @private
                         */
                        getValueScaleId: function () {
                            return this.getMeta().xAxisID;
                        },

                        /**
                         * @private
                         */
                        getIndexScaleId: function () {
                            return this.getMeta().yAxisID;
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 16: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('bubble', {
                    hover: {
                        mode: 'single'
                    },

                    scales: {
                        xAxes: [{
                                type: 'linear', // bubble should probably use a linear scale by default
                                position: 'bottom',
                                id: 'x-axis-0' // need an ID so datasets can reference the scale
                            }],
                        yAxes: [{
                                type: 'linear',
                                position: 'left',
                                id: 'y-axis-0'
                            }]
                    },

                    tooltips: {
                        callbacks: {
                            title: function () {
                                // Title doesn't make sense for scatter since we format the data as a point
                                return '';
                            },
                            label: function (item, data) {
                                var datasetLabel = data.datasets[item.datasetIndex].label || '';
                                var dataPoint = data.datasets[item.datasetIndex].data[item.index];
                                return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
                            }
                        }
                    }
                });


                module.exports = function (Chart) {

                    Chart.controllers.bubble = Chart.DatasetController.extend({
                        /**
                         * @protected
                         */
                        dataElementType: elements.Point,

                        /**
                         * @protected
                         */
                        update: function (reset) {
                            var me = this;
                            var meta = me.getMeta();
                            var points = meta.data;

                            // Update Points
                            helpers.each(points, function (point, index) {
                                me.updateElement(point, index, reset);
                            });
                        },

                        /**
                         * @protected
                         */
                        updateElement: function (point, index, reset) {
                            var me = this;
                            var meta = me.getMeta();
                            var custom = point.custom || {};
                            var xScale = me.getScaleForId(meta.xAxisID);
                            var yScale = me.getScaleForId(meta.yAxisID);
                            var options = me._resolveElementOptions(point, index);
                            var data = me.getDataset().data[index];
                            var dsIndex = me.index;

                            var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
                            var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);

                            point._xScale = xScale;
                            point._yScale = yScale;
                            point._options = options;
                            point._datasetIndex = dsIndex;
                            point._index = index;
                            point._model = {
                                backgroundColor: options.backgroundColor,
                                borderColor: options.borderColor,
                                borderWidth: options.borderWidth,
                                hitRadius: options.hitRadius,
                                pointStyle: options.pointStyle,
                                radius: reset ? 0 : options.radius,
                                skip: custom.skip || isNaN(x) || isNaN(y),
                                x: x,
                                y: y,
                            };

                            point.pivot();
                        },

                        /**
                         * @protected
                         */
                        setHoverStyle: function (point) {
                            var model = point._model;
                            var options = point._options;

                            model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor));
                            model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor));
                            model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth);
                            model.radius = options.radius + options.hoverRadius;
                        },

                        /**
                         * @protected
                         */
                        removeHoverStyle: function (point) {
                            var model = point._model;
                            var options = point._options;

                            model.backgroundColor = options.backgroundColor;
                            model.borderColor = options.borderColor;
                            model.borderWidth = options.borderWidth;
                            model.radius = options.radius;
                        },

                        /**
                         * @private
                         */
                        _resolveElementOptions: function (point, index) {
                            var me = this;
                            var chart = me.chart;
                            var datasets = chart.data.datasets;
                            var dataset = datasets[me.index];
                            var custom = point.custom || {};
                            var options = chart.options.elements.point;
                            var resolve = helpers.options.resolve;
                            var data = dataset.data[index];
                            var values = {};
                            var i, ilen, key;

                            // Scriptable options
                            var context = {
                                chart: chart,
                                dataIndex: index,
                                dataset: dataset,
                                datasetIndex: me.index
                            };

                            var keys = [
                                'backgroundColor',
                                'borderColor',
                                'borderWidth',
                                'hoverBackgroundColor',
                                'hoverBorderColor',
                                'hoverBorderWidth',
                                'hoverRadius',
                                'hitRadius',
                                'pointStyle'
                            ];

                            for (i = 0, ilen = keys.length; i < ilen; ++i) {
                                key = keys[i];
                                values[key] = resolve([
                                    custom[key],
                                    dataset[key],
                                    options[key]
                                ], context, index);
                            }

                            // Custom radius resolution
                            values.radius = resolve([
                                custom.radius,
                                data ? data.r : undefined,
                                dataset.radius,
                                options.radius
                            ], context, index);

                            return values;
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 17: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('doughnut', {
                    animation: {
                        // Boolean - Whether we animate the rotation of the Doughnut
                        animateRotate: true,
                        // Boolean - Whether we animate scaling the Doughnut from the centre
                        animateScale: false
                    },
                    hover: {
                        mode: 'single'
                    },
                    legendCallback: function (chart) {
                        var text = [];
                        text.push('<ul class="' + chart.id + '-legend">');

                        var data = chart.data;
                        var datasets = data.datasets;
                        var labels = data.labels;

                        if (datasets.length) {
                            for (var i = 0; i < datasets[0].data.length; ++i) {
                                text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
                                if (labels[i]) {
                                    text.push(labels[i]);
                                }
                                text.push('</li>');
                            }
                        }

                        text.push('</ul>');
                        return text.join('');
                    },
                    legend: {
                        labels: {
                            generateLabels: function (chart) {
                                var data = chart.data;
                                if (data.labels.length && data.datasets.length) {
                                    return data.labels.map(function (label, i) {
                                        var meta = chart.getDatasetMeta(0);
                                        var ds = data.datasets[0];
                                        var arc = meta.data[i];
                                        var custom = arc && arc.custom || {};
                                        var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
                                        var arcOpts = chart.options.elements.arc;
                                        var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
                                        var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
                                        var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

                                        return {
                                            text: label,
                                            fillStyle: fill,
                                            strokeStyle: stroke,
                                            lineWidth: bw,
                                            hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

                                            // Extra data used for toggling the correct item
                                            index: i
                                        };
                                    });
                                }
                                return [];
                            }
                        },

                        onClick: function (e, legendItem) {
                            var index = legendItem.index;
                            var chart = this.chart;
                            var i, ilen, meta;

                            for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                                meta = chart.getDatasetMeta(i);
                                // toggle visibility of index if exists
                                if (meta.data[index]) {
                                    meta.data[index].hidden = !meta.data[index].hidden;
                                }
                            }

                            chart.update();
                        }
                    },

                    // The percentage of the chart that we cut out of the middle.
                    cutoutPercentage: 50,

                    // The rotation of the chart, where the first data arc begins.
                    rotation: Math.PI * -0.5,

                    // The total circumference of the chart.
                    circumference: Math.PI * 2.0,

                    // Need to override these to give a nice default
                    tooltips: {
                        callbacks: {
                            title: function () {
                                return '';
                            },
                            label: function (tooltipItem, data) {
                                var dataLabel = data.labels[tooltipItem.index];
                                var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];

                                if (helpers.isArray(dataLabel)) {
                                    // show value on first line of multiline label
                                    // need to clone because we are changing the value
                                    dataLabel = dataLabel.slice();
                                    dataLabel[0] += value;
                                } else {
                                    dataLabel += value;
                                }

                                return dataLabel;
                            }
                        }
                    }
                });

                defaults._set('pie', helpers.clone(defaults.doughnut));
                defaults._set('pie', {
                    cutoutPercentage: 0
                });

                module.exports = function (Chart) {

                    Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({

                        dataElementType: elements.Arc,

                        linkScales: helpers.noop,

                        // Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
                        getRingIndex: function (datasetIndex) {
                            var ringIndex = 0;

                            for (var j = 0; j < datasetIndex; ++j) {
                                if (this.chart.isDatasetVisible(j)) {
                                    ++ringIndex;
                                }
                            }

                            return ringIndex;
                        },

                        update: function (reset) {
                            var me = this;
                            var chart = me.chart;
                            var chartArea = chart.chartArea;
                            var opts = chart.options;
                            var arcOpts = opts.elements.arc;
                            var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth;
                            var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth;
                            var minSize = Math.min(availableWidth, availableHeight);
                            var offset = {x: 0, y: 0};
                            var meta = me.getMeta();
                            var cutoutPercentage = opts.cutoutPercentage;
                            var circumference = opts.circumference;

                            // If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
                            if (circumference < Math.PI * 2.0) {
                                var startAngle = opts.rotation % (Math.PI * 2.0);
                                startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
                                var endAngle = startAngle + circumference;
                                var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
                                var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
                                var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
                                var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
                                var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
                                var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
                                var cutout = cutoutPercentage / 100.0;
                                var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
                                var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
                                var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
                                minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
                                offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
                            }

                            chart.borderWidth = me.getMaxBorderWidth(meta.data);
                            chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
                            chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
                            chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
                            chart.offsetX = offset.x * chart.outerRadius;
                            chart.offsetY = offset.y * chart.outerRadius;

                            meta.total = me.calculateTotal();

                            me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
                            me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0);

                            helpers.each(meta.data, function (arc, index) {
                                me.updateElement(arc, index, reset);
                            });
                        },

                        updateElement: function (arc, index, reset) {
                            var me = this;
                            var chart = me.chart;
                            var chartArea = chart.chartArea;
                            var opts = chart.options;
                            var animationOpts = opts.animation;
                            var centerX = (chartArea.left + chartArea.right) / 2;
                            var centerY = (chartArea.top + chartArea.bottom) / 2;
                            var startAngle = opts.rotation; // non reset case handled later
                            var endAngle = opts.rotation; // non reset case handled later
                            var dataset = me.getDataset();
                            var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
                            var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
                            var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
                            var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

                            helpers.extend(arc, {
                                // Utility
                                _datasetIndex: me.index,
                                _index: index,

                                // Desired view properties
                                _model: {
                                    x: centerX + chart.offsetX,
                                    y: centerY + chart.offsetY,
                                    startAngle: startAngle,
                                    endAngle: endAngle,
                                    circumference: circumference,
                                    outerRadius: outerRadius,
                                    innerRadius: innerRadius,
                                    label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
                                }
                            });

                            var model = arc._model;
                            // Resets the visual styles
                            this.removeHoverStyle(arc);

                            // Set correct angles if not resetting
                            if (!reset || !animationOpts.animateRotate) {
                                if (index === 0) {
                                    model.startAngle = opts.rotation;
                                } else {
                                    model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
                                }

                                model.endAngle = model.startAngle + model.circumference;
                            }

                            arc.pivot();
                        },

                        removeHoverStyle: function (arc) {
                            Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
                        },

                        calculateTotal: function () {
                            var dataset = this.getDataset();
                            var meta = this.getMeta();
                            var total = 0;
                            var value;

                            helpers.each(meta.data, function (element, index) {
                                value = dataset.data[index];
                                if (!isNaN(value) && !element.hidden) {
                                    total += Math.abs(value);
                                }
                            });

                            /* if (total === 0) {
                             total = NaN;
                             }*/

                            return total;
                        },

                        calculateCircumference: function (value) {
                            var total = this.getMeta().total;
                            if (total > 0 && !isNaN(value)) {
                                return (Math.PI * 2.0) * (Math.abs(value) / total);
                            }
                            return 0;
                        },

                        // gets the max border or hover width to properly scale pie charts
                        getMaxBorderWidth: function (arcs) {
                            var max = 0;
                            var index = this.index;
                            var length = arcs.length;
                            var borderWidth;
                            var hoverWidth;

                            for (var i = 0; i < length; i++) {
                                borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0;
                                hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;

                                max = borderWidth > max ? borderWidth : max;
                                max = hoverWidth > max ? hoverWidth : max;
                            }
                            return max;
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 18: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('line', {
                    showLines: true,
                    spanGaps: false,

                    hover: {
                        mode: 'label'
                    },

                    scales: {
                        xAxes: [{
                                type: 'category',
                                id: 'x-axis-0'
                            }],
                        yAxes: [{
                                type: 'linear',
                                id: 'y-axis-0'
                            }]
                    }
                });

                module.exports = function (Chart) {

                    function lineEnabled(dataset, options) {
                        return helpers.valueOrDefault(dataset.showLine, options.showLines);
                    }

                    Chart.controllers.line = Chart.DatasetController.extend({

                        datasetElementType: elements.Line,

                        dataElementType: elements.Point,

                        update: function (reset) {
                            var me = this;
                            var meta = me.getMeta();
                            var line = meta.dataset;
                            var points = meta.data || [];
                            var options = me.chart.options;
                            var lineElementOptions = options.elements.line;
                            var scale = me.getScaleForId(meta.yAxisID);
                            var i, ilen, custom;
                            var dataset = me.getDataset();
                            var showLine = lineEnabled(dataset, options);

                            // Update Line
                            if (showLine) {
                                custom = line.custom || {};

                                // Compatibility: If the properties are defined with only the old name, use those values
                                if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
                                    dataset.lineTension = dataset.tension;
                                }

                                // Utility
                                line._scale = scale;
                                line._datasetIndex = me.index;
                                // Data
                                line._children = points;
                                // Model
                                line._model = {
                                    // Appearance
                                    // The default behavior of lines is to break at null values, according
                                    // to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
                                    // This option gives lines the ability to span gaps
                                    spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
                                    tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
                                    backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
                                    borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
                                    borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
                                    borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
                                    borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
                                    borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
                                    borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
                                    fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
                                    steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
                                    cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
                                };

                                line.pivot();
                            }

                            // Update Points
                            for (i = 0, ilen = points.length; i < ilen; ++i) {
                                me.updateElement(points[i], i, reset);
                            }

                            if (showLine && line._model.tension !== 0) {
                                me.updateBezierControlPoints();
                            }

                            // Now pivot the point for animation
                            for (i = 0, ilen = points.length; i < ilen; ++i) {
                                points[i].pivot();
                            }
                        },

                        getPointBackgroundColor: function (point, index) {
                            var backgroundColor = this.chart.options.elements.point.backgroundColor;
                            var dataset = this.getDataset();
                            var custom = point.custom || {};

                            if (custom.backgroundColor) {
                                backgroundColor = custom.backgroundColor;
                            } else if (dataset.pointBackgroundColor) {
                                backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
                            } else if (dataset.backgroundColor) {
                                backgroundColor = dataset.backgroundColor;
                            }

                            return backgroundColor;
                        },

                        getPointBorderColor: function (point, index) {
                            var borderColor = this.chart.options.elements.point.borderColor;
                            var dataset = this.getDataset();
                            var custom = point.custom || {};

                            if (custom.borderColor) {
                                borderColor = custom.borderColor;
                            } else if (dataset.pointBorderColor) {
                                borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
                            } else if (dataset.borderColor) {
                                borderColor = dataset.borderColor;
                            }

                            return borderColor;
                        },

                        getPointBorderWidth: function (point, index) {
                            var borderWidth = this.chart.options.elements.point.borderWidth;
                            var dataset = this.getDataset();
                            var custom = point.custom || {};

                            if (!isNaN(custom.borderWidth)) {
                                borderWidth = custom.borderWidth;
                            } else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) {
                                borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
                            } else if (!isNaN(dataset.borderWidth)) {
                                borderWidth = dataset.borderWidth;
                            }

                            return borderWidth;
                        },

                        updateElement: function (point, index, reset) {
                            var me = this;
                            var meta = me.getMeta();
                            var custom = point.custom || {};
                            var dataset = me.getDataset();
                            var datasetIndex = me.index;
                            var value = dataset.data[index];
                            var yScale = me.getScaleForId(meta.yAxisID);
                            var xScale = me.getScaleForId(meta.xAxisID);
                            var pointOptions = me.chart.options.elements.point;
                            var x, y;

                            // Compatibility: If the properties are defined with only the old name, use those values
                            if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                                dataset.pointRadius = dataset.radius;
                            }
                            if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
                                dataset.pointHitRadius = dataset.hitRadius;
                            }

                            x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
                            y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);

                            // Utility
                            point._xScale = xScale;
                            point._yScale = yScale;
                            point._datasetIndex = datasetIndex;
                            point._index = index;

                            // Desired view properties
                            point._model = {
                                x: x,
                                y: y,
                                skip: custom.skip || isNaN(x) || isNaN(y),
                                // Appearance
                                radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
                                pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
                                backgroundColor: me.getPointBackgroundColor(point, index),
                                borderColor: me.getPointBorderColor(point, index),
                                borderWidth: me.getPointBorderWidth(point, index),
                                tension: meta.dataset._model ? meta.dataset._model.tension : 0,
                                steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
                                // Tooltip
                                hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
                            };
                        },

                        calculatePointY: function (value, index, datasetIndex) {
                            var me = this;
                            var chart = me.chart;
                            var meta = me.getMeta();
                            var yScale = me.getScaleForId(meta.yAxisID);
                            var sumPos = 0;
                            var sumNeg = 0;
                            var i, ds, dsMeta;

                            if (yScale.options.stacked) {
                                for (i = 0; i < datasetIndex; i++) {
                                    ds = chart.data.datasets[i];
                                    dsMeta = chart.getDatasetMeta(i);
                                    if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
                                        var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
                                        if (stackedRightValue < 0) {
                                            sumNeg += stackedRightValue || 0;
                                        } else {
                                            sumPos += stackedRightValue || 0;
                                        }
                                    }
                                }

                                var rightValue = Number(yScale.getRightValue(value));
                                if (rightValue < 0) {
                                    return yScale.getPixelForValue(sumNeg + rightValue);
                                }
                                return yScale.getPixelForValue(sumPos + rightValue);
                            }

                            return yScale.getPixelForValue(value);
                        },

                        updateBezierControlPoints: function () {
                            var me = this;
                            var meta = me.getMeta();
                            var area = me.chart.chartArea;
                            var points = (meta.data || []);
                            var i, ilen, point, model, controlPoints;

                            // Only consider points that are drawn in case the spanGaps option is used
                            if (meta.dataset._model.spanGaps) {
                                points = points.filter(function (pt) {
                                    return !pt._model.skip;
                                });
                            }

                            function capControlPoint(pt, min, max) {
                                return Math.max(Math.min(pt, max), min);
                            }

                            if (meta.dataset._model.cubicInterpolationMode === 'monotone') {
                                helpers.splineCurveMonotone(points);
                            } else {
                                for (i = 0, ilen = points.length; i < ilen; ++i) {
                                    point = points[i];
                                    model = point._model;
                                    controlPoints = helpers.splineCurve(
                                            helpers.previousItem(points, i)._model,
                                            model,
                                            helpers.nextItem(points, i)._model,
                                            meta.dataset._model.tension
                                            );
                                    model.controlPointPreviousX = controlPoints.previous.x;
                                    model.controlPointPreviousY = controlPoints.previous.y;
                                    model.controlPointNextX = controlPoints.next.x;
                                    model.controlPointNextY = controlPoints.next.y;
                                }
                            }

                            if (me.chart.options.elements.line.capBezierPoints) {
                                for (i = 0, ilen = points.length; i < ilen; ++i) {
                                    model = points[i]._model;
                                    model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
                                    model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
                                    model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
                                    model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
                                }
                            }
                        },

                        draw: function () {
                            var me = this;
                            var chart = me.chart;
                            var meta = me.getMeta();
                            var points = meta.data || [];
                            var area = chart.chartArea;
                            var ilen = points.length;
                            var i = 0;

                            helpers.canvas.clipArea(chart.ctx, area);

                            if (lineEnabled(me.getDataset(), chart.options)) {
                                meta.dataset.draw();
                            }

                            helpers.canvas.unclipArea(chart.ctx);

                            // Draw the points
                            for (; i < ilen; ++i) {
                                points[i].draw(area);
                            }
                        },

                        setHoverStyle: function (point) {
                            // Point
                            var dataset = this.chart.data.datasets[point._datasetIndex];
                            var index = point._index;
                            var custom = point.custom || {};
                            var model = point._model;

                            model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
                            model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                            model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                            model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
                        },

                        removeHoverStyle: function (point) {
                            var me = this;
                            var dataset = me.chart.data.datasets[point._datasetIndex];
                            var index = point._index;
                            var custom = point.custom || {};
                            var model = point._model;

                            // Compatibility: If the properties are defined with only the old name, use those values
                            if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                                dataset.pointRadius = dataset.radius;
                            }

                            model.radius = custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, me.chart.options.elements.point.radius);
                            model.backgroundColor = me.getPointBackgroundColor(point, index);
                            model.borderColor = me.getPointBorderColor(point, index);
                            model.borderWidth = me.getPointBorderWidth(point, index);
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 19: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('polarArea', {
                    scale: {
                        type: 'radialLinear',
                        angleLines: {
                            display: false
                        },
                        gridLines: {
                            circular: true
                        },
                        pointLabels: {
                            display: false
                        },
                        ticks: {
                            beginAtZero: true
                        }
                    },

                    // Boolean - Whether to animate the rotation of the chart
                    animation: {
                        animateRotate: true,
                        animateScale: true
                    },

                    startAngle: -0.5 * Math.PI,
                    legendCallback: function (chart) {
                        var text = [];
                        text.push('<ul class="' + chart.id + '-legend">');

                        var data = chart.data;
                        var datasets = data.datasets;
                        var labels = data.labels;

                        if (datasets.length) {
                            for (var i = 0; i < datasets[0].data.length; ++i) {
                                text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
                                if (labels[i]) {
                                    text.push(labels[i]);
                                }
                                text.push('</li>');
                            }
                        }

                        text.push('</ul>');
                        return text.join('');
                    },
                    legend: {
                        labels: {
                            generateLabels: function (chart) {
                                var data = chart.data;
                                if (data.labels.length && data.datasets.length) {
                                    return data.labels.map(function (label, i) {
                                        var meta = chart.getDatasetMeta(0);
                                        var ds = data.datasets[0];
                                        var arc = meta.data[i];
                                        var custom = arc.custom || {};
                                        var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
                                        var arcOpts = chart.options.elements.arc;
                                        var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
                                        var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
                                        var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

                                        return {
                                            text: label,
                                            fillStyle: fill,
                                            strokeStyle: stroke,
                                            lineWidth: bw,
                                            hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

                                            // Extra data used for toggling the correct item
                                            index: i
                                        };
                                    });
                                }
                                return [];
                            }
                        },

                        onClick: function (e, legendItem) {
                            var index = legendItem.index;
                            var chart = this.chart;
                            var i, ilen, meta;

                            for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                                meta = chart.getDatasetMeta(i);
                                meta.data[index].hidden = !meta.data[index].hidden;
                            }

                            chart.update();
                        }
                    },

                    // Need to override these to give a nice default
                    tooltips: {
                        callbacks: {
                            title: function () {
                                return '';
                            },
                            label: function (item, data) {
                                return data.labels[item.index] + ': ' + item.yLabel;
                            }
                        }
                    }
                });

                module.exports = function (Chart) {

                    Chart.controllers.polarArea = Chart.DatasetController.extend({

                        dataElementType: elements.Arc,

                        linkScales: helpers.noop,

                        update: function (reset) {
                            var me = this;
                            var chart = me.chart;
                            var chartArea = chart.chartArea;
                            var meta = me.getMeta();
                            var opts = chart.options;
                            var arcOpts = opts.elements.arc;
                            var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
                            chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
                            chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
                            chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();

                            me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
                            me.innerRadius = me.outerRadius - chart.radiusLength;

                            meta.count = me.countVisibleElements();

                            helpers.each(meta.data, function (arc, index) {
                                me.updateElement(arc, index, reset);
                            });
                        },

                        updateElement: function (arc, index, reset) {
                            var me = this;
                            var chart = me.chart;
                            var dataset = me.getDataset();
                            var opts = chart.options;
                            var animationOpts = opts.animation;
                            var scale = chart.scale;
                            var labels = chart.data.labels;

                            var circumference = me.calculateCircumference(dataset.data[index]);
                            var centerX = scale.xCenter;
                            var centerY = scale.yCenter;

                            // If there is NaN data before us, we need to calculate the starting angle correctly.
                            // We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data
                            var visibleCount = 0;
                            var meta = me.getMeta();
                            for (var i = 0; i < index; ++i) {
                                if (!isNaN(dataset.data[i]) && !meta.data[i].hidden) {
                                    ++visibleCount;
                                }
                            }

                            // var negHalfPI = -0.5 * Math.PI;
                            var datasetStartAngle = opts.startAngle;
                            var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
                            var startAngle = datasetStartAngle + (circumference * visibleCount);
                            var endAngle = startAngle + (arc.hidden ? 0 : circumference);

                            var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);

                            helpers.extend(arc, {
                                // Utility
                                _datasetIndex: me.index,
                                _index: index,
                                _scale: scale,

                                // Desired view properties
                                _model: {
                                    x: centerX,
                                    y: centerY,
                                    innerRadius: 0,
                                    outerRadius: reset ? resetRadius : distance,
                                    startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
                                    endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
                                    label: helpers.valueAtIndexOrDefault(labels, index, labels[index])
                                }
                            });

                            // Apply border and fill style
                            me.removeHoverStyle(arc);

                            arc.pivot();
                        },

                        removeHoverStyle: function (arc) {
                            Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
                        },

                        countVisibleElements: function () {
                            var dataset = this.getDataset();
                            var meta = this.getMeta();
                            var count = 0;

                            helpers.each(meta.data, function (element, index) {
                                if (!isNaN(dataset.data[index]) && !element.hidden) {
                                    count++;
                                }
                            });

                            return count;
                        },

                        calculateCircumference: function (value) {
                            var count = this.getMeta().count;
                            if (count > 0 && !isNaN(value)) {
                                return (2 * Math.PI) / count;
                            }
                            return 0;
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 20: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('radar', {
                    scale: {
                        type: 'radialLinear'
                    },
                    elements: {
                        line: {
                            tension: 0 // no bezier in radar
                        }
                    }
                });

                module.exports = function (Chart) {

                    Chart.controllers.radar = Chart.DatasetController.extend({

                        datasetElementType: elements.Line,

                        dataElementType: elements.Point,

                        linkScales: helpers.noop,

                        update: function (reset) {
                            var me = this;
                            var meta = me.getMeta();
                            var line = meta.dataset;
                            var points = meta.data;
                            var custom = line.custom || {};
                            var dataset = me.getDataset();
                            var lineElementOptions = me.chart.options.elements.line;
                            var scale = me.chart.scale;

                            // Compatibility: If the properties are defined with only the old name, use those values
                            if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
                                dataset.lineTension = dataset.tension;
                            }

                            helpers.extend(meta.dataset, {
                                // Utility
                                _datasetIndex: me.index,
                                _scale: scale,
                                // Data
                                _children: points,
                                _loop: true,
                                // Model
                                _model: {
                                    // Appearance
                                    tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
                                    backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
                                    borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
                                    borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
                                    fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
                                    borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
                                    borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
                                    borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
                                    borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
                                }
                            });

                            meta.dataset.pivot();

                            // Update Points
                            helpers.each(points, function (point, index) {
                                me.updateElement(point, index, reset);
                            }, me);

                            // Update bezier control points
                            me.updateBezierControlPoints();
                        },
                        updateElement: function (point, index, reset) {
                            var me = this;
                            var custom = point.custom || {};
                            var dataset = me.getDataset();
                            var scale = me.chart.scale;
                            var pointElementOptions = me.chart.options.elements.point;
                            var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);

                            // Compatibility: If the properties are defined with only the old name, use those values
                            if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
                                dataset.pointRadius = dataset.radius;
                            }
                            if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
                                dataset.pointHitRadius = dataset.hitRadius;
                            }

                            helpers.extend(point, {
                                // Utility
                                _datasetIndex: me.index,
                                _index: index,
                                _scale: scale,

                                // Desired view properties
                                _model: {
                                    x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
                                    y: reset ? scale.yCenter : pointPosition.y,

                                    // Appearance
                                    tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension),
                                    radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
                                    backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor),
                                    borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
                                    borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
                                    pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),

                                    // Tooltip
                                    hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius)
                                }
                            });

                            point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
                        },
                        updateBezierControlPoints: function () {
                            var chartArea = this.chart.chartArea;
                            var meta = this.getMeta();

                            helpers.each(meta.data, function (point, index) {
                                var model = point._model;
                                var controlPoints = helpers.splineCurve(
                                        helpers.previousItem(meta.data, index, true)._model,
                                        model,
                                        helpers.nextItem(meta.data, index, true)._model,
                                        model.tension
                                        );

                                // Prevent the bezier going outside of the bounds of the graph
                                model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
                                model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);

                                model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
                                model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);

                                // Now pivot the point for animation
                                point.pivot();
                            });
                        },

                        setHoverStyle: function (point) {
                            // Point
                            var dataset = this.chart.data.datasets[point._datasetIndex];
                            var custom = point.custom || {};
                            var index = point._index;
                            var model = point._model;

                            model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
                            model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
                            model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
                            model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
                        },

                        removeHoverStyle: function (point) {
                            var dataset = this.chart.data.datasets[point._datasetIndex];
                            var custom = point.custom || {};
                            var index = point._index;
                            var model = point._model;
                            var pointElementOptions = this.chart.options.elements.point;

                            model.radius = custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius);
                            model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor);
                            model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor);
                            model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth);
                        }
                    });
                };

            }, {"25": 25, "40": 40, "45": 45}], 21: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);

                defaults._set('scatter', {
                    hover: {
                        mode: 'single'
                    },

                    scales: {
                        xAxes: [{
                                id: 'x-axis-1', // need an ID so datasets can reference the scale
                                type: 'linear', // scatter should not use a category axis
                                position: 'bottom'
                            }],
                        yAxes: [{
                                id: 'y-axis-1',
                                type: 'linear',
                                position: 'left'
                            }]
                    },

                    showLines: false,

                    tooltips: {
                        callbacks: {
                            title: function () {
                                return '';     // doesn't make sense for scatter since data are formatted as a point
                            },
                            label: function (item) {
                                return '(' + item.xLabel + ', ' + item.yLabel + ')';
                            }
                        }
                    }
                });

                module.exports = function (Chart) {

                    // Scatter charts use line controllers
                    Chart.controllers.scatter = Chart.controllers.line;

                };

            }, {"25": 25}], 22: [function (require, module, exports) {
                /* global window: false */
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);

                defaults._set('global', {
                    animation: {
                        duration: 1000,
                        easing: 'easeOutQuart',
                        onProgress: helpers.noop,
                        onComplete: helpers.noop
                    }
                });

                module.exports = function (Chart) {

                    Chart.Animation = Element.extend({
                        chart: null, // the animation associated chart instance
                        currentStep: 0, // the current animation step
                        numSteps: 60, // default number of steps
                        easing: '', // the easing to use for this animation
                        render: null, // render function used by the animation service

                        onAnimationProgress: null, // user specified callback to fire on each step of the animation
                        onAnimationComplete: null, // user specified callback to fire when the animation finishes
                    });

                    Chart.animationService = {
                        frameDuration: 17,
                        animations: [],
                        dropFrames: 0,
                        request: null,

                        /**
                         * @param {Chart} chart - The chart to animate.
                         * @param {Chart.Animation} animation - The animation that we will animate.
                         * @param {Number} duration - The animation duration in ms.
                         * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
                         */
                        addAnimation: function (chart, animation, duration, lazy) {
                            var animations = this.animations;
                            var i, ilen;

                            animation.chart = chart;

                            if (!lazy) {
                                chart.animating = true;
                            }

                            for (i = 0, ilen = animations.length; i < ilen; ++i) {
                                if (animations[i].chart === chart) {
                                    animations[i] = animation;
                                    return;
                                }
                            }

                            animations.push(animation);

                            // If there are no animations queued, manually kickstart a digest, for lack of a better word
                            if (animations.length === 1) {
                                this.requestAnimationFrame();
                            }
                        },

                        cancelAnimation: function (chart) {
                            var index = helpers.findIndex(this.animations, function (animation) {
                                return animation.chart === chart;
                            });

                            if (index !== -1) {
                                this.animations.splice(index, 1);
                                chart.animating = false;
                            }
                        },

                        requestAnimationFrame: function () {
                            var me = this;
                            if (me.request === null) {
                                // Skip animation frame requests until the active one is executed.
                                // This can happen when processing mouse events, e.g. 'mousemove'
                                // and 'mouseout' events will trigger multiple renders.
                                me.request = helpers.requestAnimFrame.call(window, function () {
                                    me.request = null;
                                    me.startDigest();
                                });
                            }
                        },

                        /**
                         * @private
                         */
                        startDigest: function () {
                            var me = this;
                            var startTime = Date.now();
                            var framesToDrop = 0;

                            if (me.dropFrames > 1) {
                                framesToDrop = Math.floor(me.dropFrames);
                                me.dropFrames = me.dropFrames % 1;
                            }

                            me.advance(1 + framesToDrop);

                            var endTime = Date.now();

                            me.dropFrames += (endTime - startTime) / me.frameDuration;

                            // Do we have more stuff to animate?
                            if (me.animations.length > 0) {
                                me.requestAnimationFrame();
                            }
                        },

                        /**
                         * @private
                         */
                        advance: function (count) {
                            var animations = this.animations;
                            var animation, chart;
                            var i = 0;

                            while (i < animations.length) {
                                animation = animations[i];
                                chart = animation.chart;

                                animation.currentStep = (animation.currentStep || 0) + count;
                                animation.currentStep = Math.min(animation.currentStep, animation.numSteps);

                                helpers.callback(animation.render, [chart, animation], chart);
                                helpers.callback(animation.onAnimationProgress, [animation], chart);

                                if (animation.currentStep >= animation.numSteps) {
                                    helpers.callback(animation.onAnimationComplete, [animation], chart);
                                    chart.animating = false;
                                    animations.splice(i, 1);
                                } else {
                                    ++i;
                                }
                            }
                        }
                    };

                    /**
                     * Provided for backward compatibility, use Chart.Animation instead
                     * @prop Chart.Animation#animationObject
                     * @deprecated since version 2.6.0
                     * @todo remove at version 3
                     */
                    Object.defineProperty(Chart.Animation.prototype, 'animationObject', {
                        get: function () {
                            return this;
                        }
                    });

                    /**
                     * Provided for backward compatibility, use Chart.Animation#chart instead
                     * @prop Chart.Animation#chartInstance
                     * @deprecated since version 2.6.0
                     * @todo remove at version 3
                     */
                    Object.defineProperty(Chart.Animation.prototype, 'chartInstance', {
                        get: function () {
                            return this.chart;
                        },
                        set: function (value) {
                            this.chart = value;
                        }
                    });

                };

            }, {"25": 25, "26": 26, "45": 45}], 23: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var helpers = require(45);
                var Interaction = require(28);
                var layouts = require(30);
                var platform = require(48);
                var plugins = require(31);

                module.exports = function (Chart) {

                    // Create a dictionary of chart types, to allow for extension of existing types
                    Chart.types = {};

                    // Store a reference to each instance - allowing us to globally resize chart instances on window resize.
                    // Destroy method on the chart will remove the instance of the chart from this reference.
                    Chart.instances = {};

                    // Controllers available for dataset visualization eg. bar, line, slice, etc.
                    Chart.controllers = {};

                    /**
                     * Initializes the given config with global and chart default values.
                     */
                    function initConfig(config) {
                        config = config || {};

                        // Do NOT use configMerge() for the data object because this method merges arrays
                        // and so would change references to labels and datasets, preventing data updates.
                        var data = config.data = config.data || {};
                        data.datasets = data.datasets || [];
                        data.labels = data.labels || [];

                        config.options = helpers.configMerge(
                                defaults.global,
                                defaults[config.type],
                                config.options || {});

                        return config;
                    }

                    /**
                     * Updates the config of the chart
                     * @param chart {Chart} chart to update the options for
                     */
                    function updateConfig(chart) {
                        var newOptions = chart.options;

                        helpers.each(chart.scales, function (scale) {
                            layouts.removeBox(chart, scale);
                        });

                        newOptions = helpers.configMerge(
                                Chart.defaults.global,
                                Chart.defaults[chart.config.type],
                                newOptions);

                        chart.options = chart.config.options = newOptions;
                        chart.ensureScalesHaveIDs();
                        chart.buildOrUpdateScales();
                        // Tooltip
                        chart.tooltip._options = newOptions.tooltips;
                        chart.tooltip.initialize();
                    }

                    function positionIsHorizontal(position) {
                        return position === 'top' || position === 'bottom';
                    }

                    helpers.extend(Chart.prototype, /** @lends Chart */ {
                        /**
                         * @private
                         */
                        construct: function (item, config) {
                            var me = this;

                            config = initConfig(config);

                            var context = platform.acquireContext(item, config);
                            var canvas = context && context.canvas;
                            var height = canvas && canvas.height;
                            var width = canvas && canvas.width;

                            me.id = helpers.uid();
                            me.ctx = context;
                            me.canvas = canvas;
                            me.config = config;
                            me.width = width;
                            me.height = height;
                            me.aspectRatio = height ? width / height : null;
                            me.options = config.options;
                            me._bufferedRender = false;

                            /**
                             * Provided for backward compatibility, Chart and Chart.Controller have been merged,
                             * the "instance" still need to be defined since it might be called from plugins.
                             * @prop Chart#chart
                             * @deprecated since version 2.6.0
                             * @todo remove at version 3
                             * @private
                             */
                            me.chart = me;
                            me.controller = me; // chart.chart.controller #inception

                            // Add the chart instance to the global namespace
                            Chart.instances[me.id] = me;

                            // Define alias to the config data: `chart.data === chart.config.data`
                            Object.defineProperty(me, 'data', {
                                get: function () {
                                    return me.config.data;
                                },
                                set: function (value) {
                                    me.config.data = value;
                                }
                            });

                            if (!context || !canvas) {
                                // The given item is not a compatible context2d element, let's return before finalizing
                                // the chart initialization but after setting basic chart / controller properties that
                                // can help to figure out that the chart is not valid (e.g chart.canvas !== null);
                                // https://github.com/chartjs/Chart.js/issues/2807
                                console.error("Failed to create chart: can't acquire context from the given item");
                                return;
                            }

                            me.initialize();
                            me.update();
                        },

                        /**
                         * @private
                         */
                        initialize: function () {
                            var me = this;

                            // Before init plugin notification
                            plugins.notify(me, 'beforeInit');

                            helpers.retinaScale(me, me.options.devicePixelRatio);

                            me.bindEvents();

                            if (me.options.responsive) {
                                // Initial resize before chart draws (must be silent to preserve initial animations).
                                me.resize(true);
                            }

                            // Make sure scales have IDs and are built before we build any controllers.
                            me.ensureScalesHaveIDs();
                            me.buildOrUpdateScales();
                            me.initToolTip();

                            // After init plugin notification
                            plugins.notify(me, 'afterInit');

                            return me;
                        },

                        clear: function () {
                            helpers.canvas.clear(this);
                            return this;
                        },

                        stop: function () {
                            // Stops any current animation loop occurring
                            Chart.animationService.cancelAnimation(this);
                            return this;
                        },

                        resize: function (silent) {
                            var me = this;
                            var options = me.options;
                            var canvas = me.canvas;
                            var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;

                            // the canvas render width and height will be casted to integers so make sure that
                            // the canvas display style uses the same integer values to avoid blurring effect.

                            // Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collased
                            var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas)));
                            var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas)));

                            if (me.width === newWidth && me.height === newHeight) {
                                return;
                            }

                            canvas.width = me.width = newWidth;
                            canvas.height = me.height = newHeight;
                            canvas.style.width = newWidth + 'px';
                            canvas.style.height = newHeight + 'px';

                            helpers.retinaScale(me, options.devicePixelRatio);

                            if (!silent) {
                                // Notify any plugins about the resize
                                var newSize = {width: newWidth, height: newHeight};
                                plugins.notify(me, 'resize', [newSize]);

                                // Notify of resize
                                if (me.options.onResize) {
                                    me.options.onResize(me, newSize);
                                }

                                me.stop();
                                me.update(me.options.responsiveAnimationDuration);
                            }
                        },

                        ensureScalesHaveIDs: function () {
                            var options = this.options;
                            var scalesOptions = options.scales || {};
                            var scaleOptions = options.scale;

                            helpers.each(scalesOptions.xAxes, function (xAxisOptions, index) {
                                xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
                            });

                            helpers.each(scalesOptions.yAxes, function (yAxisOptions, index) {
                                yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
                            });

                            if (scaleOptions) {
                                scaleOptions.id = scaleOptions.id || 'scale';
                            }
                        },

                        /**
                         * Builds a map of scale ID to scale object for future lookup.
                         */
                        buildOrUpdateScales: function () {
                            var me = this;
                            var options = me.options;
                            var scales = me.scales || {};
                            var items = [];
                            var updated = Object.keys(scales).reduce(function (obj, id) {
                                obj[id] = false;
                                return obj;
                            }, {});

                            if (options.scales) {
                                items = items.concat(
                                        (options.scales.xAxes || []).map(function (xAxisOptions) {
                                    return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
                                }),
                                        (options.scales.yAxes || []).map(function (yAxisOptions) {
                                    return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
                                })
                                        );
                            }

                            if (options.scale) {
                                items.push({
                                    options: options.scale,
                                    dtype: 'radialLinear',
                                    isDefault: true,
                                    dposition: 'chartArea'
                                });
                            }

                            helpers.each(items, function (item) {
                                var scaleOptions = item.options;
                                var id = scaleOptions.id;
                                var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype);

                                if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
                                    scaleOptions.position = item.dposition;
                                }

                                updated[id] = true;
                                var scale = null;
                                if (id in scales && scales[id].type === scaleType) {
                                    scale = scales[id];
                                    scale.options = scaleOptions;
                                    scale.ctx = me.ctx;
                                    scale.chart = me;
                                } else {
                                    var scaleClass = Chart.scaleService.getScaleConstructor(scaleType);
                                    if (!scaleClass) {
                                        return;
                                    }
                                    scale = new scaleClass({
                                        id: id,
                                        type: scaleType,
                                        options: scaleOptions,
                                        ctx: me.ctx,
                                        chart: me
                                    });
                                    scales[scale.id] = scale;
                                }

                                scale.mergeTicksOptions();

                                // TODO(SB): I think we should be able to remove this custom case (options.scale)
                                // and consider it as a regular scale part of the "scales"" map only! This would
                                // make the logic easier and remove some useless? custom code.
                                if (item.isDefault) {
                                    me.scale = scale;
                                }
                            });
                            // clear up discarded scales
                            helpers.each(updated, function (hasUpdated, id) {
                                if (!hasUpdated) {
                                    delete scales[id];
                                }
                            });

                            me.scales = scales;

                            Chart.scaleService.addScalesToLayout(this);
                        },

                        buildOrUpdateControllers: function () {
                            var me = this;
                            var types = [];
                            var newControllers = [];

                            helpers.each(me.data.datasets, function (dataset, datasetIndex) {
                                var meta = me.getDatasetMeta(datasetIndex);
                                var type = dataset.type || me.config.type;

                                if (meta.type && meta.type !== type) {
                                    me.destroyDatasetMeta(datasetIndex);
                                    meta = me.getDatasetMeta(datasetIndex);
                                }
                                meta.type = type;

                                types.push(meta.type);

                                if (meta.controller) {
                                    meta.controller.updateIndex(datasetIndex);
                                    meta.controller.linkScales();
                                } else {
                                    var ControllerClass = Chart.controllers[meta.type];
                                    if (ControllerClass === undefined) {
                                        throw new Error('"' + meta.type + '" is not a chart type.');
                                    }

                                    meta.controller = new ControllerClass(me, datasetIndex);
                                    newControllers.push(meta.controller);
                                }
                            }, me);

                            return newControllers;
                        },

                        /**
                         * Reset the elements of all datasets
                         * @private
                         */
                        resetElements: function () {
                            var me = this;
                            helpers.each(me.data.datasets, function (dataset, datasetIndex) {
                                me.getDatasetMeta(datasetIndex).controller.reset();
                            }, me);
                        },

                        /**
                         * Resets the chart back to it's state before the initial animation
                         */
                        reset: function () {
                            this.resetElements();
                            this.tooltip.initialize();
                        },

                        update: function (config) {
                            var me = this;

                            if (!config || typeof config !== 'object') {
                                // backwards compatibility
                                config = {
                                    duration: config,
                                    lazy: arguments[1]
                                };
                            }

                            updateConfig(me);

                            // plugins options references might have change, let's invalidate the cache
                            // https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
                            plugins._invalidate(me);

                            if (plugins.notify(me, 'beforeUpdate') === false) {
                                return;
                            }

                            // In case the entire data object changed
                            me.tooltip._data = me.data;

                            // Make sure dataset controllers are updated and new controllers are reset
                            var newControllers = me.buildOrUpdateControllers();

                            // Make sure all dataset controllers have correct meta data counts
                            helpers.each(me.data.datasets, function (dataset, datasetIndex) {
                                me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
                            }, me);

                            me.updateLayout();

                            // Can only reset the new controllers after the scales have been updated
                            if (me.options.animation && me.options.animation.duration) {
                                helpers.each(newControllers, function (controller) {
                                    controller.reset();
                                });
                            }

                            me.updateDatasets();

                            // Need to reset tooltip in case it is displayed with elements that are removed
                            // after update.
                            me.tooltip.initialize();

                            // Last active contains items that were previously in the tooltip.
                            // When we reset the tooltip, we need to clear it
                            me.lastActive = [];

                            // Do this before render so that any plugins that need final scale updates can use it
                            plugins.notify(me, 'afterUpdate');

                            if (me._bufferedRender) {
                                me._bufferedRequest = {
                                    duration: config.duration,
                                    easing: config.easing,
                                    lazy: config.lazy
                                };
                            } else {
                                me.render(config);
                            }
                        },

                        /**
                         * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
                         * hook, in which case, plugins will not be called on `afterLayout`.
                         * @private
                         */
                        updateLayout: function () {
                            var me = this;

                            if (plugins.notify(me, 'beforeLayout') === false) {
                                return;
                            }

                            layouts.update(this, this.width, this.height);

                            /**
                             * Provided for backward compatibility, use `afterLayout` instead.
                             * @method IPlugin#afterScaleUpdate
                             * @deprecated since version 2.5.0
                             * @todo remove at version 3
                             * @private
                             */
                            plugins.notify(me, 'afterScaleUpdate');
                            plugins.notify(me, 'afterLayout');
                        },

                        /**
                         * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
                         * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
                         * @private
                         */
                        updateDatasets: function () {
                            var me = this;

                            if (plugins.notify(me, 'beforeDatasetsUpdate') === false) {
                                return;
                            }

                            for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
                                me.updateDataset(i);
                            }

                            plugins.notify(me, 'afterDatasetsUpdate');
                        },

                        /**
                         * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
                         * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
                         * @private
                         */
                        updateDataset: function (index) {
                            var me = this;
                            var meta = me.getDatasetMeta(index);
                            var args = {
                                meta: meta,
                                index: index
                            };

                            if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
                                return;
                            }

                            meta.controller.update();

                            plugins.notify(me, 'afterDatasetUpdate', [args]);
                        },

                        render: function (config) {
                            var me = this;

                            if (!config || typeof config !== 'object') {
                                // backwards compatibility
                                config = {
                                    duration: config,
                                    lazy: arguments[1]
                                };
                            }

                            var duration = config.duration;
                            var lazy = config.lazy;

                            if (plugins.notify(me, 'beforeRender') === false) {
                                return;
                            }

                            var animationOptions = me.options.animation;
                            var onComplete = function (animation) {
                                plugins.notify(me, 'afterRender');
                                helpers.callback(animationOptions && animationOptions.onComplete, [animation], me);
                            };

                            if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
                                var animation = new Chart.Animation({
                                    numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps
                                    easing: config.easing || animationOptions.easing,

                                    render: function (chart, animationObject) {
                                        var easingFunction = helpers.easing.effects[animationObject.easing];
                                        var currentStep = animationObject.currentStep;
                                        var stepDecimal = currentStep / animationObject.numSteps;

                                        chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
                                    },

                                    onAnimationProgress: animationOptions.onProgress,
                                    onAnimationComplete: onComplete
                                });

                                Chart.animationService.addAnimation(me, animation, duration, lazy);
                            } else {
                                me.draw();

                                // See https://github.com/chartjs/Chart.js/issues/3781
                                onComplete(new Chart.Animation({numSteps: 0, chart: me}));
                            }

                            return me;
                        },

                        draw: function (easingValue) {
                            var me = this;

                            me.clear();

                            if (helpers.isNullOrUndef(easingValue)) {
                                easingValue = 1;
                            }

                            me.transition(easingValue);

                            if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
                                return;
                            }

                            // Draw all the scales
                            helpers.each(me.boxes, function (box) {
                                box.draw(me.chartArea);
                            }, me);

                            if (me.scale) {
                                me.scale.draw();
                            }

                            me.drawDatasets(easingValue);
                            me._drawTooltip(easingValue);

                            plugins.notify(me, 'afterDraw', [easingValue]);
                        },

                        /**
                         * @private
                         */
                        transition: function (easingValue) {
                            var me = this;

                            for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
                                if (me.isDatasetVisible(i)) {
                                    me.getDatasetMeta(i).controller.transition(easingValue);
                                }
                            }

                            me.tooltip.transition(easingValue);
                        },

                        /**
                         * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
                         * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
                         * @private
                         */
                        drawDatasets: function (easingValue) {
                            var me = this;

                            if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
                                return;
                            }

                            // Draw datasets reversed to support proper line stacking
                            for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
                                if (me.isDatasetVisible(i)) {
                                    me.drawDataset(i, easingValue);
                                }
                            }

                            plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
                        },

                        /**
                         * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
                         * hook, in which case, plugins will not be called on `afterDatasetDraw`.
                         * @private
                         */
                        drawDataset: function (index, easingValue) {
                            var me = this;
                            var meta = me.getDatasetMeta(index);
                            var args = {
                                meta: meta,
                                index: index,
                                easingValue: easingValue
                            };

                            if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
                                return;
                            }

                            meta.controller.draw(easingValue);

                            plugins.notify(me, 'afterDatasetDraw', [args]);
                        },

                        /**
                         * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
                         * hook, in which case, plugins will not be called on `afterTooltipDraw`.
                         * @private
                         */
                        _drawTooltip: function (easingValue) {
                            var me = this;
                            var tooltip = me.tooltip;
                            var args = {
                                tooltip: tooltip,
                                easingValue: easingValue
                            };

                            if (plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
                                return;
                            }

                            tooltip.draw();

                            plugins.notify(me, 'afterTooltipDraw', [args]);
                        },

                        // Get the single element that was clicked on
                        // @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
                        getElementAtEvent: function (e) {
                            return Interaction.modes.single(this, e);
                        },

                        getElementsAtEvent: function (e) {
                            return Interaction.modes.label(this, e, {intersect: true});
                        },

                        getElementsAtXAxis: function (e) {
                            return Interaction.modes['x-axis'](this, e, {intersect: true});
                        },

                        getElementsAtEventForMode: function (e, mode, options) {
                            var method = Interaction.modes[mode];
                            if (typeof method === 'function') {
                                return method(this, e, options);
                            }

                            return [];
                        },

                        getDatasetAtEvent: function (e) {
                            return Interaction.modes.dataset(this, e, {intersect: true});
                        },

                        getDatasetMeta: function (datasetIndex) {
                            var me = this;
                            var dataset = me.data.datasets[datasetIndex];
                            if (!dataset._meta) {
                                dataset._meta = {};
                            }

                            var meta = dataset._meta[me.id];
                            if (!meta) {
                                meta = dataset._meta[me.id] = {
                                    type: null,
                                    data: [],
                                    dataset: null,
                                    controller: null,
                                    hidden: null, // See isDatasetVisible() comment
                                    xAxisID: null,
                                    yAxisID: null
                                };
                            }

                            return meta;
                        },

                        getVisibleDatasetCount: function () {
                            var count = 0;
                            for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
                                if (this.isDatasetVisible(i)) {
                                    count++;
                                }
                            }
                            return count;
                        },

                        isDatasetVisible: function (datasetIndex) {
                            var meta = this.getDatasetMeta(datasetIndex);

                            // meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
                            // the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
                            return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
                        },

                        generateLegend: function () {
                            return this.options.legendCallback(this);
                        },

                        /**
                         * @private
                         */
                        destroyDatasetMeta: function (datasetIndex) {
                            var id = this.id;
                            var dataset = this.data.datasets[datasetIndex];
                            var meta = dataset._meta && dataset._meta[id];

                            if (meta) {
                                meta.controller.destroy();
                                delete dataset._meta[id];
                            }
                        },

                        destroy: function () {
                            var me = this;
                            var canvas = me.canvas;
                            var i, ilen;

                            me.stop();

                            // dataset controllers need to cleanup associated data
                            for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
                                me.destroyDatasetMeta(i);
                            }

                            if (canvas) {
                                me.unbindEvents();
                                helpers.canvas.clear(me);
                                platform.releaseContext(me.ctx);
                                me.canvas = null;
                                me.ctx = null;
                            }

                            plugins.notify(me, 'destroy');

                            delete Chart.instances[me.id];
                        },

                        toBase64Image: function () {
                            return this.canvas.toDataURL.apply(this.canvas, arguments);
                        },

                        initToolTip: function () {
                            var me = this;
                            me.tooltip = new Chart.Tooltip({
                                _chart: me,
                                _chartInstance: me, // deprecated, backward compatibility
                                _data: me.data,
                                _options: me.options.tooltips
                            }, me);
                        },

                        /**
                         * @private
                         */
                        bindEvents: function () {
                            var me = this;
                            var listeners = me._listeners = {};
                            var listener = function () {
                                me.eventHandler.apply(me, arguments);
                            };

                            helpers.each(me.options.events, function (type) {
                                platform.addEventListener(me, type, listener);
                                listeners[type] = listener;
                            });

                            // Elements used to detect size change should not be injected for non responsive charts.
                            // See https://github.com/chartjs/Chart.js/issues/2210
                            if (me.options.responsive) {
                                listener = function () {
                                    me.resize();
                                };

                                platform.addEventListener(me, 'resize', listener);
                                listeners.resize = listener;
                            }
                        },

                        /**
                         * @private
                         */
                        unbindEvents: function () {
                            var me = this;
                            var listeners = me._listeners;
                            if (!listeners) {
                                return;
                            }

                            delete me._listeners;
                            helpers.each(listeners, function (listener, type) {
                                platform.removeEventListener(me, type, listener);
                            });
                        },

                        updateHoverStyle: function (elements, mode, enabled) {
                            var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
                            var element, i, ilen;

                            for (i = 0, ilen = elements.length; i < ilen; ++i) {
                                element = elements[i];
                                if (element) {
                                    this.getDatasetMeta(element._datasetIndex).controller[method](element);
                                }
                            }
                        },

                        /**
                         * @private
                         */
                        eventHandler: function (e) {
                            var me = this;
                            var tooltip = me.tooltip;

                            if (plugins.notify(me, 'beforeEvent', [e]) === false) {
                                return;
                            }

                            // Buffer any update calls so that renders do not occur
                            me._bufferedRender = true;
                            me._bufferedRequest = null;

                            var changed = me.handleEvent(e);
                            // for smooth tooltip animations issue #4989
                            // the tooltip should be the source of change
                            // Animation check workaround:
                            // tooltip._start will be null when tooltip isn't animating
                            if (tooltip) {
                                changed = tooltip._start
                                        ? tooltip.handleEvent(e)
                                        : changed | tooltip.handleEvent(e);
                            }

                            plugins.notify(me, 'afterEvent', [e]);

                            var bufferedRequest = me._bufferedRequest;
                            if (bufferedRequest) {
                                // If we have an update that was triggered, we need to do a normal render
                                me.render(bufferedRequest);
                            } else if (changed && !me.animating) {
                                // If entering, leaving, or changing elements, animate the change via pivot
                                me.stop();

                                // We only need to render at this point. Updating will cause scales to be
                                // recomputed generating flicker & using more memory than necessary.
                                me.render(me.options.hover.animationDuration, true);
                            }

                            me._bufferedRender = false;
                            me._bufferedRequest = null;

                            return me;
                        },

                        /**
                         * Handle an event
                         * @private
                         * @param {IEvent} event the event to handle
                         * @return {Boolean} true if the chart needs to re-render
                         */
                        handleEvent: function (e) {
                            var me = this;
                            var options = me.options || {};
                            var hoverOptions = options.hover;
                            var changed = false;

                            me.lastActive = me.lastActive || [];

                            // Find Active Elements for hover and tooltips
                            if (e.type === 'mouseout') {
                                me.active = [];
                            } else {
                                me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
                            }

                            // Invoke onHover hook
                            // Need to call with native event here to not break backwards compatibility
                            helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);

                            if (e.type === 'mouseup' || e.type === 'click') {
                                if (options.onClick) {
                                    // Use e.native here for backwards compatibility
                                    options.onClick.call(me, e.native, me.active);
                                }
                            }

                            // Remove styling for last active (even if it may still be active)
                            if (me.lastActive.length) {
                                me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
                            }

                            // Built in hover styling
                            if (me.active.length && hoverOptions.mode) {
                                me.updateHoverStyle(me.active, hoverOptions.mode, true);
                            }

                            changed = !helpers.arrayEquals(me.active, me.lastActive);

                            // Remember Last Actives
                            me.lastActive = me.active;

                            return changed;
                        }
                    });

                    /**
                     * Provided for backward compatibility, use Chart instead.
                     * @class Chart.Controller
                     * @deprecated since version 2.6.0
                     * @todo remove at version 3
                     * @private
                     */
                    Chart.Controller = Chart;
                };

            }, {"25": 25, "28": 28, "30": 30, "31": 31, "45": 45, "48": 48}], 24: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                module.exports = function (Chart) {

                    var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];

                    /**
                     * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
                     * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
                     * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
                     */
                    function listenArrayEvents(array, listener) {
                        if (array._chartjs) {
                            array._chartjs.listeners.push(listener);
                            return;
                        }

                        Object.defineProperty(array, '_chartjs', {
                            configurable: true,
                            enumerable: false,
                            value: {
                                listeners: [listener]
                            }
                        });

                        arrayEvents.forEach(function (key) {
                            var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
                            var base = array[key];

                            Object.defineProperty(array, key, {
                                configurable: true,
                                enumerable: false,
                                value: function () {
                                    var args = Array.prototype.slice.call(arguments);
                                    var res = base.apply(this, args);

                                    helpers.each(array._chartjs.listeners, function (object) {
                                        if (typeof object[method] === 'function') {
                                            object[method].apply(object, args);
                                        }
                                    });

                                    return res;
                                }
                            });
                        });
                    }

                    /**
                     * Removes the given array event listener and cleanup extra attached properties (such as
                     * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
                     */
                    function unlistenArrayEvents(array, listener) {
                        var stub = array._chartjs;
                        if (!stub) {
                            return;
                        }

                        var listeners = stub.listeners;
                        var index = listeners.indexOf(listener);
                        if (index !== -1) {
                            listeners.splice(index, 1);
                        }

                        if (listeners.length > 0) {
                            return;
                        }

                        arrayEvents.forEach(function (key) {
                            delete array[key];
                        });

                        delete array._chartjs;
                    }

                    // Base class for all dataset controllers (line, bar, etc)
                    Chart.DatasetController = function (chart, datasetIndex) {
                        this.initialize(chart, datasetIndex);
                    };

                    helpers.extend(Chart.DatasetController.prototype, {

                        /**
                         * Element type used to generate a meta dataset (e.g. Chart.element.Line).
                         * @type {Chart.core.element}
                         */
                        datasetElementType: null,

                        /**
                         * Element type used to generate a meta data (e.g. Chart.element.Point).
                         * @type {Chart.core.element}
                         */
                        dataElementType: null,

                        initialize: function (chart, datasetIndex) {
                            var me = this;
                            me.chart = chart;
                            me.index = datasetIndex;
                            me.linkScales();
                            me.addElements();
                        },

                        updateIndex: function (datasetIndex) {
                            this.index = datasetIndex;
                        },

                        linkScales: function () {
                            var me = this;
                            var meta = me.getMeta();
                            var dataset = me.getDataset();

                            if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
                                meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
                            }
                            if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
                                meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
                            }
                        },

                        getDataset: function () {
                            return this.chart.data.datasets[this.index];
                        },

                        getMeta: function () {
                            return this.chart.getDatasetMeta(this.index);
                        },

                        getScaleForId: function (scaleID) {
                            return this.chart.scales[scaleID];
                        },

                        reset: function () {
                            this.update(true);
                        },

                        /**
                         * @private
                         */
                        destroy: function () {
                            if (this._data) {
                                unlistenArrayEvents(this._data, this);
                            }
                        },

                        createMetaDataset: function () {
                            var me = this;
                            var type = me.datasetElementType;
                            return type && new type({
                                _chart: me.chart,
                                _datasetIndex: me.index
                            });
                        },

                        createMetaData: function (index) {
                            var me = this;
                            var type = me.dataElementType;
                            return type && new type({
                                _chart: me.chart,
                                _datasetIndex: me.index,
                                _index: index
                            });
                        },

                        addElements: function () {
                            var me = this;
                            var meta = me.getMeta();
                            var data = me.getDataset().data || [];
                            var metaData = meta.data;
                            var i, ilen;

                            for (i = 0, ilen = data.length; i < ilen; ++i) {
                                metaData[i] = metaData[i] || me.createMetaData(i);
                            }

                            meta.dataset = meta.dataset || me.createMetaDataset();
                        },

                        addElementAndReset: function (index) {
                            var element = this.createMetaData(index);
                            this.getMeta().data.splice(index, 0, element);
                            this.updateElement(element, index, true);
                        },

                        buildOrUpdateElements: function () {
                            var me = this;
                            var dataset = me.getDataset();
                            var data = dataset.data || (dataset.data = []);

                            // In order to correctly handle data addition/deletion animation (an thus simulate
                            // real-time charts), we need to monitor these data modifications and synchronize
                            // the internal meta data accordingly.
                            if (me._data !== data) {
                                if (me._data) {
                                    // This case happens when the user replaced the data array instance.
                                    unlistenArrayEvents(me._data, me);
                                }

                                listenArrayEvents(data, me);
                                me._data = data;
                            }

                            // Re-sync meta data in case the user replaced the data array or if we missed
                            // any updates and so make sure that we handle number of datapoints changing.
                            me.resyncElements();
                        },

                        update: helpers.noop,

                        transition: function (easingValue) {
                            var meta = this.getMeta();
                            var elements = meta.data || [];
                            var ilen = elements.length;
                            var i = 0;

                            for (; i < ilen; ++i) {
                                elements[i].transition(easingValue);
                            }

                            if (meta.dataset) {
                                meta.dataset.transition(easingValue);
                            }
                        },

                        draw: function () {
                            var meta = this.getMeta();
                            var elements = meta.data || [];
                            var ilen = elements.length;
                            var i = 0;

                            if (meta.dataset) {
                                meta.dataset.draw();
                            }

                            for (; i < ilen; ++i) {
                                elements[i].draw();
                            }
                        },

                        removeHoverStyle: function (element, elementOpts) {
                            var dataset = this.chart.data.datasets[element._datasetIndex];
                            var index = element._index;
                            var custom = element.custom || {};
                            var valueOrDefault = helpers.valueAtIndexOrDefault;
                            var model = element._model;

                            model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
                            model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
                            model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
                        },

                        setHoverStyle: function (element) {
                            var dataset = this.chart.data.datasets[element._datasetIndex];
                            var index = element._index;
                            var custom = element.custom || {};
                            var valueOrDefault = helpers.valueAtIndexOrDefault;
                            var getHoverColor = helpers.getHoverColor;
                            var model = element._model;

                            model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
                            model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
                            model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
                        },

                        /**
                         * @private
                         */
                        resyncElements: function () {
                            var me = this;
                            var meta = me.getMeta();
                            var data = me.getDataset().data;
                            var numMeta = meta.data.length;
                            var numData = data.length;

                            if (numData < numMeta) {
                                meta.data.splice(numData, numMeta - numData);
                            } else if (numData > numMeta) {
                                me.insertElements(numMeta, numData - numMeta);
                            }
                        },

                        /**
                         * @private
                         */
                        insertElements: function (start, count) {
                            for (var i = 0; i < count; ++i) {
                                this.addElementAndReset(start + i);
                            }
                        },

                        /**
                         * @private
                         */
                        onDataPush: function () {
                            this.insertElements(this.getDataset().data.length - 1, arguments.length);
                        },

                        /**
                         * @private
                         */
                        onDataPop: function () {
                            this.getMeta().data.pop();
                        },

                        /**
                         * @private
                         */
                        onDataShift: function () {
                            this.getMeta().data.shift();
                        },

                        /**
                         * @private
                         */
                        onDataSplice: function (start, count) {
                            this.getMeta().data.splice(start, count);
                            this.insertElements(start, arguments.length - 2);
                        },

                        /**
                         * @private
                         */
                        onDataUnshift: function () {
                            this.insertElements(0, arguments.length);
                        }
                    });

                    Chart.DatasetController.extend = helpers.inherits;
                };

            }, {"45": 45}], 25: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                module.exports = {
                    /**
                     * @private
                     */
                    _set: function (scope, values) {
                        return helpers.merge(this[scope] || (this[scope] = {}), values);
                    }
                };

            }, {"45": 45}], 26: [function (require, module, exports) {
                'use strict';

                var color = require(3);
                var helpers = require(45);

                function interpolate(start, view, model, ease) {
                    var keys = Object.keys(model);
                    var i, ilen, key, actual, origin, target, type, c0, c1;

                    for (i = 0, ilen = keys.length; i < ilen; ++i) {
                        key = keys[i];

                        target = model[key];

                        // if a value is added to the model after pivot() has been called, the view
                        // doesn't contain it, so let's initialize the view to the target value.
                        if (!view.hasOwnProperty(key)) {
                            view[key] = target;
                        }

                        actual = view[key];

                        if (actual === target || key[0] === '_') {
                            continue;
                        }

                        if (!start.hasOwnProperty(key)) {
                            start[key] = actual;
                        }

                        origin = start[key];

                        type = typeof target;

                        if (type === typeof origin) {
                            if (type === 'string') {
                                c0 = color(origin);
                                if (c0.valid) {
                                    c1 = color(target);
                                    if (c1.valid) {
                                        view[key] = c1.mix(c0, ease).rgbString();
                                        continue;
                                    }
                                }
                            } else if (type === 'number' && isFinite(origin) && isFinite(target)) {
                                view[key] = origin + (target - origin) * ease;
                                continue;
                            }
                        }

                        view[key] = target;
                    }
                }

                var Element = function (configuration) {
                    helpers.extend(this, configuration);
                    this.initialize.apply(this, arguments);
                };

                helpers.extend(Element.prototype, {

                    initialize: function () {
                        this.hidden = false;
                    },

                    pivot: function () {
                        var me = this;
                        if (!me._view) {
                            me._view = helpers.clone(me._model);
                        }
                        me._start = {};
                        return me;
                    },

                    transition: function (ease) {
                        var me = this;
                        var model = me._model;
                        var start = me._start;
                        var view = me._view;

                        // No animation -> No Transition
                        if (!model || ease === 1) {
                            me._view = model;
                            me._start = null;
                            return me;
                        }

                        if (!view) {
                            view = me._view = {};
                        }

                        if (!start) {
                            start = me._start = {};
                        }

                        interpolate(start, view, model, ease);

                        return me;
                    },

                    tooltipPosition: function () {
                        return {
                            x: this._model.x,
                            y: this._model.y
                        };
                    },

                    hasValue: function () {
                        return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
                    }
                });

                Element.extend = helpers.inherits;

                module.exports = Element;

            }, {"3": 3, "45": 45}], 27: [function (require, module, exports) {
                /* global window: false */
                /* global document: false */
                'use strict';

                var color = require(3);
                var defaults = require(25);
                var helpers = require(45);

                module.exports = function (Chart) {

                    // -- Basic js utility methods

                    helpers.configMerge = function (/* objects ... */) {
                        return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
                            merger: function (key, target, source, options) {
                                var tval = target[key] || {};
                                var sval = source[key];

                                if (key === 'scales') {
                                    // scale config merging is complex. Add our own function here for that
                                    target[key] = helpers.scaleMerge(tval, sval);
                                } else if (key === 'scale') {
                                    // used in polar area & radar charts since there is only one scale
                                    target[key] = helpers.merge(tval, [Chart.scaleService.getScaleDefaults(sval.type), sval]);
                                } else {
                                    helpers._merger(key, target, source, options);
                                }
                            }
                        });
                    };

                    helpers.scaleMerge = function (/* objects ... */) {
                        return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
                            merger: function (key, target, source, options) {
                                if (key === 'xAxes' || key === 'yAxes') {
                                    var slen = source[key].length;
                                    var i, type, scale;

                                    if (!target[key]) {
                                        target[key] = [];
                                    }

                                    for (i = 0; i < slen; ++i) {
                                        scale = source[key][i];
                                        type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear');

                                        if (i >= target[key].length) {
                                            target[key].push({});
                                        }

                                        if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
                                            // new/untyped scale or type changed: let's apply the new defaults
                                            // then merge source scale to correctly overwrite the defaults.
                                            helpers.merge(target[key][i], [Chart.scaleService.getScaleDefaults(type), scale]);
                                        } else {
                                            // scales type are the same
                                            helpers.merge(target[key][i], scale);
                                        }
                                    }
                                } else {
                                    helpers._merger(key, target, source, options);
                                }
                            }
                        });
                    };

                    helpers.where = function (collection, filterCallback) {
                        if (helpers.isArray(collection) && Array.prototype.filter) {
                            return collection.filter(filterCallback);
                        }
                        var filtered = [];

                        helpers.each(collection, function (item) {
                            if (filterCallback(item)) {
                                filtered.push(item);
                            }
                        });

                        return filtered;
                    };
                    helpers.findIndex = Array.prototype.findIndex ?
                            function (array, callback, scope) {
                                return array.findIndex(callback, scope);
                            } :
                            function (array, callback, scope) {
                                scope = scope === undefined ? array : scope;
                                for (var i = 0, ilen = array.length; i < ilen; ++i) {
                                    if (callback.call(scope, array[i], i, array)) {
                                        return i;
                                    }
                                }
                                return -1;
                            };
                    helpers.findNextWhere = function (arrayToSearch, filterCallback, startIndex) {
                        // Default to start of the array
                        if (helpers.isNullOrUndef(startIndex)) {
                            startIndex = -1;
                        }
                        for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
                            var currentItem = arrayToSearch[i];
                            if (filterCallback(currentItem)) {
                                return currentItem;
                            }
                        }
                    };
                    helpers.findPreviousWhere = function (arrayToSearch, filterCallback, startIndex) {
                        // Default to end of the array
                        if (helpers.isNullOrUndef(startIndex)) {
                            startIndex = arrayToSearch.length;
                        }
                        for (var i = startIndex - 1; i >= 0; i--) {
                            var currentItem = arrayToSearch[i];
                            if (filterCallback(currentItem)) {
                                return currentItem;
                            }
                        }
                    };

                    // -- Math methods
                    helpers.isNumber = function (n) {
                        return !isNaN(parseFloat(n)) && isFinite(n);
                    };
                    helpers.almostEquals = function (x, y, epsilon) {
                        return Math.abs(x - y) < epsilon;
                    };
                    helpers.almostWhole = function (x, epsilon) {
                        var rounded = Math.round(x);
                        return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
                    };
                    helpers.max = function (array) {
                        return array.reduce(function (max, value) {
                            if (!isNaN(value)) {
                                return Math.max(max, value);
                            }
                            return max;
                        }, Number.NEGATIVE_INFINITY);
                    };
                    helpers.min = function (array) {
                        return array.reduce(function (min, value) {
                            if (!isNaN(value)) {
                                return Math.min(min, value);
                            }
                            return min;
                        }, Number.POSITIVE_INFINITY);
                    };
                    helpers.sign = Math.sign ?
                            function (x) {
                                return Math.sign(x);
                            } :
                            function (x) {
                                x = +x; // convert to a number
                                if (x === 0 || isNaN(x)) {
                                    return x;
                                }
                                return x > 0 ? 1 : -1;
                            };
                    helpers.log10 = Math.log10 ?
                            function (x) {
                                return Math.log10(x);
                            } :
                            function (x) {
                                var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
                                // Check for whole powers of 10,
                                // which due to floating point rounding error should be corrected.
                                var powerOf10 = Math.round(exponent);
                                var isPowerOf10 = x === Math.pow(10, powerOf10);

                                return isPowerOf10 ? powerOf10 : exponent;
                            };
                    helpers.toRadians = function (degrees) {
                        return degrees * (Math.PI / 180);
                    };
                    helpers.toDegrees = function (radians) {
                        return radians * (180 / Math.PI);
                    };
                    // Gets the angle from vertical upright to the point about a centre.
                    helpers.getAngleFromPoint = function (centrePoint, anglePoint) {
                        var distanceFromXCenter = anglePoint.x - centrePoint.x;
                        var distanceFromYCenter = anglePoint.y - centrePoint.y;
                        var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);

                        var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);

                        if (angle < (-0.5 * Math.PI)) {
                            angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
                        }

                        return {
                            angle: angle,
                            distance: radialDistanceFromCenter
                        };
                    };
                    helpers.distanceBetweenPoints = function (pt1, pt2) {
                        return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
                    };
                    helpers.aliasPixel = function (pixelWidth) {
                        return (pixelWidth % 2 === 0) ? 0 : 0.5;
                    };
                    helpers.splineCurve = function (firstPoint, middlePoint, afterPoint, t) {
                        // Props to Rob Spencer at scaled innovation for his post on splining between points
                        // http://scaledinnovation.com/analytics/splines/aboutSplines.html

                        // This function must also respect "skipped" points

                        var previous = firstPoint.skip ? middlePoint : firstPoint;
                        var current = middlePoint;
                        var next = afterPoint.skip ? middlePoint : afterPoint;

                        var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
                        var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));

                        var s01 = d01 / (d01 + d12);
                        var s12 = d12 / (d01 + d12);

                        // If all points are the same, s01 & s02 will be inf
                        s01 = isNaN(s01) ? 0 : s01;
                        s12 = isNaN(s12) ? 0 : s12;

                        var fa = t * s01; // scaling factor for triangle Ta
                        var fb = t * s12;

                        return {
                            previous: {
                                x: current.x - fa * (next.x - previous.x),
                                y: current.y - fa * (next.y - previous.y)
                            },
                            next: {
                                x: current.x + fb * (next.x - previous.x),
                                y: current.y + fb * (next.y - previous.y)
                            }
                        };
                    };
                    helpers.EPSILON = Number.EPSILON || 1e-14;
                    helpers.splineCurveMonotone = function (points) {
                        // This function calculates Bézier control points in a similar way than |splineCurve|,
                        // but preserves monotonicity of the provided data and ensures no local extremums are added
                        // between the dataset discrete points due to the interpolation.
                        // See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation

                        var pointsWithTangents = (points || []).map(function (point) {
                            return {
                                model: point._model,
                                deltaK: 0,
                                mK: 0
                            };
                        });

                        // Calculate slopes (deltaK) and initialize tangents (mK)
                        var pointsLen = pointsWithTangents.length;
                        var i, pointBefore, pointCurrent, pointAfter;
                        for (i = 0; i < pointsLen; ++i) {
                            pointCurrent = pointsWithTangents[i];
                            if (pointCurrent.model.skip) {
                                continue;
                            }

                            pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
                            pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
                            if (pointAfter && !pointAfter.model.skip) {
                                var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);

                                // In the case of two points that appear at the same x pixel, slopeDeltaX is 0
                                pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
                            }

                            if (!pointBefore || pointBefore.model.skip) {
                                pointCurrent.mK = pointCurrent.deltaK;
                            } else if (!pointAfter || pointAfter.model.skip) {
                                pointCurrent.mK = pointBefore.deltaK;
                            } else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
                                pointCurrent.mK = 0;
                            } else {
                                pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
                            }
                        }

                        // Adjust tangents to ensure monotonic properties
                        var alphaK, betaK, tauK, squaredMagnitude;
                        for (i = 0; i < pointsLen - 1; ++i) {
                            pointCurrent = pointsWithTangents[i];
                            pointAfter = pointsWithTangents[i + 1];
                            if (pointCurrent.model.skip || pointAfter.model.skip) {
                                continue;
                            }

                            if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
                                pointCurrent.mK = pointAfter.mK = 0;
                                continue;
                            }

                            alphaK = pointCurrent.mK / pointCurrent.deltaK;
                            betaK = pointAfter.mK / pointCurrent.deltaK;
                            squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
                            if (squaredMagnitude <= 9) {
                                continue;
                            }

                            tauK = 3 / Math.sqrt(squaredMagnitude);
                            pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
                            pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
                        }

                        // Compute control points
                        var deltaX;
                        for (i = 0; i < pointsLen; ++i) {
                            pointCurrent = pointsWithTangents[i];
                            if (pointCurrent.model.skip) {
                                continue;
                            }

                            pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
                            pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
                            if (pointBefore && !pointBefore.model.skip) {
                                deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
                                pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
                                pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
                            }
                            if (pointAfter && !pointAfter.model.skip) {
                                deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
                                pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
                                pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
                            }
                        }
                    };
                    helpers.nextItem = function (collection, index, loop) {
                        if (loop) {
                            return index >= collection.length - 1 ? collection[0] : collection[index + 1];
                        }
                        return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
                    };
                    helpers.previousItem = function (collection, index, loop) {
                        if (loop) {
                            return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
                        }
                        return index <= 0 ? collection[0] : collection[index - 1];
                    };
                    // Implementation of the nice number algorithm used in determining where axis labels will go
                    helpers.niceNum = function (range, round) {
                        var exponent = Math.floor(helpers.log10(range));
                        var fraction = range / Math.pow(10, exponent);
                        var niceFraction;

                        if (round) {
                            if (fraction < 1.5) {
                                niceFraction = 1;
                            } else if (fraction < 3) {
                                niceFraction = 2;
                            } else if (fraction < 7) {
                                niceFraction = 5;
                            } else {
                                niceFraction = 10;
                            }
                        } else if (fraction <= 1.0) {
                            niceFraction = 1;
                        } else if (fraction <= 2) {
                            niceFraction = 2;
                        } else if (fraction <= 5) {
                            niceFraction = 5;
                        } else {
                            niceFraction = 10;
                        }

                        return niceFraction * Math.pow(10, exponent);
                    };
                    // Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
                    helpers.requestAnimFrame = (function () {
                        if (typeof window === 'undefined') {
                            return function (callback) {
                                callback();
                            };
                        }
                        return window.requestAnimationFrame ||
                                window.webkitRequestAnimationFrame ||
                                window.mozRequestAnimationFrame ||
                                window.oRequestAnimationFrame ||
                                window.msRequestAnimationFrame ||
                                function (callback) {
                                    return window.setTimeout(callback, 1000 / 60);
                                };
                    }());
                    // -- DOM methods
                    helpers.getRelativePosition = function (evt, chart) {
                        var mouseX, mouseY;
                        var e = evt.originalEvent || evt;
                        var canvas = evt.currentTarget || evt.srcElement;
                        var boundingRect = canvas.getBoundingClientRect();

                        var touches = e.touches;
                        if (touches && touches.length > 0) {
                            mouseX = touches[0].clientX;
                            mouseY = touches[0].clientY;

                        } else {
                            mouseX = e.clientX;
                            mouseY = e.clientY;
                        }

                        // Scale mouse coordinates into canvas coordinates
                        // by following the pattern laid out by 'jerryj' in the comments of
                        // http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
                        var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
                        var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
                        var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
                        var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
                        var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
                        var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;

                        // We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
                        // the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
                        mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
                        mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);

                        return {
                            x: mouseX,
                            y: mouseY
                        };

                    };

                    // Private helper function to convert max-width/max-height values that may be percentages into a number
                    function parseMaxStyle(styleValue, node, parentProperty) {
                        var valueInPixels;
                        if (typeof styleValue === 'string') {
                            valueInPixels = parseInt(styleValue, 10);

                            if (styleValue.indexOf('%') !== -1) {
                                // percentage * size in dimension
                                valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
                            }
                        } else {
                            valueInPixels = styleValue;
                        }

                        return valueInPixels;
                    }

                    /**
                     * Returns if the given value contains an effective constraint.
                     * @private
                     */
                    function isConstrainedValue(value) {
                        return value !== undefined && value !== null && value !== 'none';
                    }

                    // Private helper to get a constraint dimension
                    // @param domNode : the node to check the constraint on
                    // @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
                    // @param percentageProperty : property of parent to use when calculating width as a percentage
                    // @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
                    function getConstraintDimension(domNode, maxStyle, percentageProperty) {
                        var view = document.defaultView;
                        var parentNode = domNode.parentNode;
                        var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
                        var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
                        var hasCNode = isConstrainedValue(constrainedNode);
                        var hasCContainer = isConstrainedValue(constrainedContainer);
                        var infinity = Number.POSITIVE_INFINITY;

                        if (hasCNode || hasCContainer) {
                            return Math.min(
                                    hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
                                    hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
                        }

                        return 'none';
                    }
                    // returns Number or undefined if no constraint
                    helpers.getConstraintWidth = function (domNode) {
                        return getConstraintDimension(domNode, 'max-width', 'clientWidth');
                    };
                    // returns Number or undefined if no constraint
                    helpers.getConstraintHeight = function (domNode) {
                        return getConstraintDimension(domNode, 'max-height', 'clientHeight');
                    };
                    helpers.getMaximumWidth = function (domNode) {
                        var container = domNode.parentNode;
                        if (!container) {
                            return domNode.clientWidth;
                        }

                        var paddingLeft = parseInt(helpers.getStyle(container, 'padding-left'), 10);
                        var paddingRight = parseInt(helpers.getStyle(container, 'padding-right'), 10);
                        var w = container.clientWidth - paddingLeft - paddingRight;
                        var cw = helpers.getConstraintWidth(domNode);
                        return isNaN(cw) ? w : Math.min(w, cw);
                    };
                    helpers.getMaximumHeight = function (domNode) {
                        var container = domNode.parentNode;
                        if (!container) {
                            return domNode.clientHeight;
                        }

                        var paddingTop = parseInt(helpers.getStyle(container, 'padding-top'), 10);
                        var paddingBottom = parseInt(helpers.getStyle(container, 'padding-bottom'), 10);
                        var h = container.clientHeight - paddingTop - paddingBottom;
                        var ch = helpers.getConstraintHeight(domNode);
                        return isNaN(ch) ? h : Math.min(h, ch);
                    };
                    helpers.getStyle = function (el, property) {
                        return el.currentStyle ?
                                el.currentStyle[property] :
                                document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
                    };
                    helpers.retinaScale = function (chart, forceRatio) {
                        var pixelRatio = chart.currentDevicePixelRatio = forceRatio || window.devicePixelRatio || 1;
                        if (pixelRatio === 1) {
                            return;
                        }

                        var canvas = chart.canvas;
                        var height = chart.height;
                        var width = chart.width;

                        canvas.height = height * pixelRatio;
                        canvas.width = width * pixelRatio;
                        chart.ctx.scale(pixelRatio, pixelRatio);

                        // If no style has been set on the canvas, the render size is used as display size,
                        // making the chart visually bigger, so let's enforce it to the "correct" values.
                        // See https://github.com/chartjs/Chart.js/issues/3575
                        if (!canvas.style.height && !canvas.style.width) {
                            canvas.style.height = height + 'px';
                            canvas.style.width = width + 'px';
                        }
                    };
                    // -- Canvas methods
                    helpers.fontString = function (pixelSize, fontStyle, fontFamily) {
                        return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
                    };
                    helpers.longestText = function (ctx, font, arrayOfThings, cache) {
                        cache = cache || {};
                        var data = cache.data = cache.data || {};
                        var gc = cache.garbageCollect = cache.garbageCollect || [];

                        if (cache.font !== font) {
                            data = cache.data = {};
                            gc = cache.garbageCollect = [];
                            cache.font = font;
                        }

                        ctx.font = font;
                        var longest = 0;
                        helpers.each(arrayOfThings, function (thing) {
                            // Undefined strings and arrays should not be measured
                            if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
                                longest = helpers.measureText(ctx, data, gc, longest, thing);
                            } else if (helpers.isArray(thing)) {
                                // if it is an array lets measure each element
                                // to do maybe simplify this function a bit so we can do this more recursively?
                                helpers.each(thing, function (nestedThing) {
                                    // Undefined strings and arrays should not be measured
                                    if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
                                        longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
                                    }
                                });
                            }
                        });

                        var gcLen = gc.length / 2;
                        if (gcLen > arrayOfThings.length) {
                            for (var i = 0; i < gcLen; i++) {
                                delete data[gc[i]];
                            }
                            gc.splice(0, gcLen);
                        }
                        return longest;
                    };
                    helpers.measureText = function (ctx, data, gc, longest, string) {
                        var textWidth = data[string];
                        if (!textWidth) {
                            textWidth = data[string] = ctx.measureText(string).width;
                            gc.push(string);
                        }
                        if (textWidth > longest) {
                            longest = textWidth;
                        }
                        return longest;
                    };
                    helpers.numberOfLabelLines = function (arrayOfThings) {
                        var numberOfLines = 1;
                        helpers.each(arrayOfThings, function (thing) {
                            if (helpers.isArray(thing)) {
                                if (thing.length > numberOfLines) {
                                    numberOfLines = thing.length;
                                }
                            }
                        });
                        return numberOfLines;
                    };

                    helpers.color = !color ?
                            function (value) {
                                console.error('Color.js not found!');
                                return value;
                            } :
                            function (value) {
                                /* global CanvasGradient */
                                if (value instanceof CanvasGradient) {
                                    value = defaults.global.defaultColor;
                                }

                                return color(value);
                            };

                    helpers.getHoverColor = function (colorValue) {
                        /* global CanvasPattern */
                        return (colorValue instanceof CanvasPattern) ?
                                colorValue :
                                helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString();
                    };
                };

            }, {"25": 25, "3": 3, "45": 45}], 28: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                /**
                 * Helper function to get relative position for an event
                 * @param {Event|IEvent} event - The event to get the position for
                 * @param {Chart} chart - The chart
                 * @returns {Point} the event position
                 */
                function getRelativePosition(e, chart) {
                    if (e.native) {
                        return {
                            x: e.x,
                            y: e.y
                        };
                    }

                    return helpers.getRelativePosition(e, chart);
                }

                /**
                 * Helper function to traverse all of the visible elements in the chart
                 * @param chart {chart} the chart
                 * @param handler {Function} the callback to execute for each visible item
                 */
                function parseVisibleItems(chart, handler) {
                    var datasets = chart.data.datasets;
                    var meta, i, j, ilen, jlen;

                    for (i = 0, ilen = datasets.length; i < ilen; ++i) {
                        if (!chart.isDatasetVisible(i)) {
                            continue;
                        }

                        meta = chart.getDatasetMeta(i);
                        for (j = 0, jlen = meta.data.length; j < jlen; ++j) {
                            var element = meta.data[j];
                            if (!element._view.skip) {
                                handler(element);
                            }
                        }
                    }
                }

                /**
                 * Helper function to get the items that intersect the event position
                 * @param items {ChartElement[]} elements to filter
                 * @param position {Point} the point to be nearest to
                 * @return {ChartElement[]} the nearest items
                 */
                function getIntersectItems(chart, position) {
                    var elements = [];

                    parseVisibleItems(chart, function (element) {
                        if (element.inRange(position.x, position.y)) {
                            elements.push(element);
                        }
                    });

                    return elements;
                }

                /**
                 * Helper function to get the items nearest to the event position considering all visible items in teh chart
                 * @param chart {Chart} the chart to look at elements from
                 * @param position {Point} the point to be nearest to
                 * @param intersect {Boolean} if true, only consider items that intersect the position
                 * @param distanceMetric {Function} function to provide the distance between points
                 * @return {ChartElement[]} the nearest items
                 */
                function getNearestItems(chart, position, intersect, distanceMetric) {
                    var minDistance = Number.POSITIVE_INFINITY;
                    var nearestItems = [];

                    parseVisibleItems(chart, function (element) {
                        if (intersect && !element.inRange(position.x, position.y)) {
                            return;
                        }

                        var center = element.getCenterPoint();
                        var distance = distanceMetric(position, center);

                        if (distance < minDistance) {
                            nearestItems = [element];
                            minDistance = distance;
                        } else if (distance === minDistance) {
                            // Can have multiple items at the same distance in which case we sort by size
                            nearestItems.push(element);
                        }
                    });

                    return nearestItems;
                }

                /**
                 * Get a distance metric function for two points based on the
                 * axis mode setting
                 * @param {String} axis the axis mode. x|y|xy
                 */
                function getDistanceMetricForAxis(axis) {
                    var useX = axis.indexOf('x') !== -1;
                    var useY = axis.indexOf('y') !== -1;

                    return function (pt1, pt2) {
                        var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
                        var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
                        return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
                    };
                }

                function indexMode(chart, e, options) {
                    var position = getRelativePosition(e, chart);
                    // Default axis for index mode is 'x' to match old behaviour
                    options.axis = options.axis || 'x';
                    var distanceMetric = getDistanceMetricForAxis(options.axis);
                    var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
                    var elements = [];

                    if (!items.length) {
                        return [];
                    }

                    chart.data.datasets.forEach(function (dataset, datasetIndex) {
                        if (chart.isDatasetVisible(datasetIndex)) {
                            var meta = chart.getDatasetMeta(datasetIndex);
                            var element = meta.data[items[0]._index];

                            // don't count items that are skipped (null data)
                            if (element && !element._view.skip) {
                                elements.push(element);
                            }
                        }
                    });

                    return elements;
                }

                /**
                 * @interface IInteractionOptions
                 */
                /**
                 * If true, only consider items that intersect the point
                 * @name IInterfaceOptions#boolean
                 * @type Boolean
                 */

                /**
                 * Contains interaction related functions
                 * @namespace Chart.Interaction
                 */
                module.exports = {
                    // Helper function for different modes
                    modes: {
                        single: function (chart, e) {
                            var position = getRelativePosition(e, chart);
                            var elements = [];

                            parseVisibleItems(chart, function (element) {
                                if (element.inRange(position.x, position.y)) {
                                    elements.push(element);
                                    return elements;
                                }
                            });

                            return elements.slice(0, 1);
                        },

                        /**
                         * @function Chart.Interaction.modes.label
                         * @deprecated since version 2.4.0
                         * @todo remove at version 3
                         * @private
                         */
                        label: indexMode,

                        /**
                         * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
                         * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
                         * @function Chart.Interaction.modes.index
                         * @since v2.4.0
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @param options {IInteractionOptions} options to use during interaction
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        index: indexMode,

                        /**
                         * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
                         * If the options.intersect is false, we find the nearest item and return the items in that dataset
                         * @function Chart.Interaction.modes.dataset
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @param options {IInteractionOptions} options to use during interaction
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        dataset: function (chart, e, options) {
                            var position = getRelativePosition(e, chart);
                            options.axis = options.axis || 'xy';
                            var distanceMetric = getDistanceMetricForAxis(options.axis);
                            var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);

                            if (items.length > 0) {
                                items = chart.getDatasetMeta(items[0]._datasetIndex).data;
                            }

                            return items;
                        },

                        /**
                         * @function Chart.Interaction.modes.x-axis
                         * @deprecated since version 2.4.0. Use index mode and intersect == true
                         * @todo remove at version 3
                         * @private
                         */
                        'x-axis': function (chart, e) {
                            return indexMode(chart, e, {intersect: false});
                        },

                        /**
                         * Point mode returns all elements that hit test based on the event position
                         * of the event
                         * @function Chart.Interaction.modes.intersect
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        point: function (chart, e) {
                            var position = getRelativePosition(e, chart);
                            return getIntersectItems(chart, position);
                        },

                        /**
                         * nearest mode returns the element closest to the point
                         * @function Chart.Interaction.modes.intersect
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @param options {IInteractionOptions} options to use
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        nearest: function (chart, e, options) {
                            var position = getRelativePosition(e, chart);
                            options.axis = options.axis || 'xy';
                            var distanceMetric = getDistanceMetricForAxis(options.axis);
                            var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric);

                            // We have multiple items at the same distance from the event. Now sort by smallest
                            if (nearestItems.length > 1) {
                                nearestItems.sort(function (a, b) {
                                    var sizeA = a.getArea();
                                    var sizeB = b.getArea();
                                    var ret = sizeA - sizeB;

                                    if (ret === 0) {
                                        // if equal sort by dataset index
                                        ret = a._datasetIndex - b._datasetIndex;
                                    }

                                    return ret;
                                });
                            }

                            // Return only 1 item
                            return nearestItems.slice(0, 1);
                        },

                        /**
                         * x mode returns the elements that hit-test at the current x coordinate
                         * @function Chart.Interaction.modes.x
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @param options {IInteractionOptions} options to use
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        x: function (chart, e, options) {
                            var position = getRelativePosition(e, chart);
                            var items = [];
                            var intersectsItem = false;

                            parseVisibleItems(chart, function (element) {
                                if (element.inXRange(position.x)) {
                                    items.push(element);
                                }

                                if (element.inRange(position.x, position.y)) {
                                    intersectsItem = true;
                                }
                            });

                            // If we want to trigger on an intersect and we don't have any items
                            // that intersect the position, return nothing
                            if (options.intersect && !intersectsItem) {
                                items = [];
                            }
                            return items;
                        },

                        /**
                         * y mode returns the elements that hit-test at the current y coordinate
                         * @function Chart.Interaction.modes.y
                         * @param chart {chart} the chart we are returning items from
                         * @param e {Event} the event we are find things at
                         * @param options {IInteractionOptions} options to use
                         * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
                         */
                        y: function (chart, e, options) {
                            var position = getRelativePosition(e, chart);
                            var items = [];
                            var intersectsItem = false;

                            parseVisibleItems(chart, function (element) {
                                if (element.inYRange(position.y)) {
                                    items.push(element);
                                }

                                if (element.inRange(position.x, position.y)) {
                                    intersectsItem = true;
                                }
                            });

                            // If we want to trigger on an intersect and we don't have any items
                            // that intersect the position, return nothing
                            if (options.intersect && !intersectsItem) {
                                items = [];
                            }
                            return items;
                        }
                    }
                };

            }, {"45": 45}], 29: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);

                defaults._set('global', {
                    responsive: true,
                    responsiveAnimationDuration: 0,
                    maintainAspectRatio: true,
                    events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'],
                    hover: {
                        onHover: null,
                        mode: 'nearest',
                        intersect: true,
                        animationDuration: 400
                    },
                    onClick: null,
                    defaultColor: 'rgba(0,0,0,0.1)',
                    defaultFontColor: '#666',
                    defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
                    defaultFontSize: 12,
                    defaultFontStyle: 'normal',
                    showLines: true,

                    // Element defaults defined in element extensions
                    elements: {},

                    // Layout options such as padding
                    layout: {
                        padding: {
                            top: 0,
                            right: 0,
                            bottom: 0,
                            left: 0
                        }
                    }
                });

                module.exports = function () {

                    // Occupy the global variable of Chart, and create a simple base class
                    var Chart = function (item, config) {
                        this.construct(item, config);
                        return this;
                    };

                    Chart.Chart = Chart;

                    return Chart;
                };

            }, {"25": 25}], 30: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                function filterByPosition(array, position) {
                    return helpers.where(array, function (v) {
                        return v.position === position;
                    });
                }

                function sortByWeight(array, reverse) {
                    array.forEach(function (v, i) {
                        v._tmpIndex_ = i;
                        return v;
                    });
                    array.sort(function (a, b) {
                        var v0 = reverse ? b : a;
                        var v1 = reverse ? a : b;
                        return v0.weight === v1.weight ?
                                v0._tmpIndex_ - v1._tmpIndex_ :
                                v0.weight - v1.weight;
                    });
                    array.forEach(function (v) {
                        delete v._tmpIndex_;
                    });
                }

                /**
                 * @interface ILayoutItem
                 * @prop {String} position - The position of the item in the chart layout. Possible values are
                 * 'left', 'top', 'right', 'bottom', and 'chartArea'
                 * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area
                 * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
                 * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
                 * @prop {Function} update - Takes two parameters: width and height. Returns size of item
                 * @prop {Function} getPadding -  Returns an object with padding on the edges
                 * @prop {Number} width - Width of item. Must be valid after update()
                 * @prop {Number} height - Height of item. Must be valid after update()
                 * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update
                 * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update
                 * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update
                 * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
                 */

// The layout service is very self explanatory.  It's responsible for the layout within a chart.
// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
// It is this service's responsibility of carrying out that layout.
                module.exports = {
                    defaults: {},

                    /**
                     * Register a box to a chart.
                     * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
                     * @param {Chart} chart - the chart to use
                     * @param {ILayoutItem} item - the item to add to be layed out
                     */
                    addBox: function (chart, item) {
                        if (!chart.boxes) {
                            chart.boxes = [];
                        }

                        // initialize item with default values
                        item.fullWidth = item.fullWidth || false;
                        item.position = item.position || 'top';
                        item.weight = item.weight || 0;

                        chart.boxes.push(item);
                    },

                    /**
                     * Remove a layoutItem from a chart
                     * @param {Chart} chart - the chart to remove the box from
                     * @param {Object} layoutItem - the item to remove from the layout
                     */
                    removeBox: function (chart, layoutItem) {
                        var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
                        if (index !== -1) {
                            chart.boxes.splice(index, 1);
                        }
                    },

                    /**
                     * Sets (or updates) options on the given `item`.
                     * @param {Chart} chart - the chart in which the item lives (or will be added to)
                     * @param {Object} item - the item to configure with the given options
                     * @param {Object} options - the new item options.
                     */
                    configure: function (chart, item, options) {
                        var props = ['fullWidth', 'position', 'weight'];
                        var ilen = props.length;
                        var i = 0;
                        var prop;

                        for (; i < ilen; ++i) {
                            prop = props[i];
                            if (options.hasOwnProperty(prop)) {
                                item[prop] = options[prop];
                            }
                        }
                    },

                    /**
                     * Fits boxes of the given chart into the given size by having each box measure itself
                     * then running a fitting algorithm
                     * @param {Chart} chart - the chart
                     * @param {Number} width - the width to fit into
                     * @param {Number} height - the height to fit into
                     */
                    update: function (chart, width, height) {
                        if (!chart) {
                            return;
                        }

                        var layoutOptions = chart.options.layout || {};
                        var padding = helpers.options.toPadding(layoutOptions.padding);
                        var leftPadding = padding.left;
                        var rightPadding = padding.right;
                        var topPadding = padding.top;
                        var bottomPadding = padding.bottom;

                        var leftBoxes = filterByPosition(chart.boxes, 'left');
                        var rightBoxes = filterByPosition(chart.boxes, 'right');
                        var topBoxes = filterByPosition(chart.boxes, 'top');
                        var bottomBoxes = filterByPosition(chart.boxes, 'bottom');
                        var chartAreaBoxes = filterByPosition(chart.boxes, 'chartArea');

                        // Sort boxes by weight. A higher weight is further away from the chart area
                        sortByWeight(leftBoxes, true);
                        sortByWeight(rightBoxes, false);
                        sortByWeight(topBoxes, true);
                        sortByWeight(bottomBoxes, false);

                        // Essentially we now have any number of boxes on each of the 4 sides.
                        // Our canvas looks like the following.
                        // The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
                        // B1 is the bottom axis
                        // There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
                        // These locations are single-box locations only, when trying to register a chartArea location that is already taken,
                        // an error will be thrown.
                        //
                        // |----------------------------------------------------|
                        // |                  T1 (Full Width)                   |
                        // |----------------------------------------------------|
                        // |    |    |                 T2                  |    |
                        // |    |----|-------------------------------------|----|
                        // |    |    | C1 |                           | C2 |    |
                        // |    |    |----|                           |----|    |
                        // |    |    |                                     |    |
                        // | L1 | L2 |           ChartArea (C0)            | R1 |
                        // |    |    |                                     |    |
                        // |    |    |----|                           |----|    |
                        // |    |    | C3 |                           | C4 |    |
                        // |    |----|-------------------------------------|----|
                        // |    |    |                 B1                  |    |
                        // |----------------------------------------------------|
                        // |                  B2 (Full Width)                   |
                        // |----------------------------------------------------|
                        //
                        // What we do to find the best sizing, we do the following
                        // 1. Determine the minimum size of the chart area.
                        // 2. Split the remaining width equally between each vertical axis
                        // 3. Split the remaining height equally between each horizontal axis
                        // 4. Give each layout the maximum size it can be. The layout will return it's minimum size
                        // 5. Adjust the sizes of each axis based on it's minimum reported size.
                        // 6. Refit each axis
                        // 7. Position each axis in the final location
                        // 8. Tell the chart the final location of the chart area
                        // 9. Tell any axes that overlay the chart area the positions of the chart area

                        // Step 1
                        var chartWidth = width - leftPadding - rightPadding;
                        var chartHeight = height - topPadding - bottomPadding;
                        var chartAreaWidth = chartWidth / 2; // min 50%
                        var chartAreaHeight = chartHeight / 2; // min 50%

                        // Step 2
                        var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);

                        // Step 3
                        var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);

                        // Step 4
                        var maxChartAreaWidth = chartWidth;
                        var maxChartAreaHeight = chartHeight;
                        var minBoxSizes = [];

                        function getMinimumBoxSize(box) {
                            var minSize;
                            var isHorizontal = box.isHorizontal();

                            if (isHorizontal) {
                                minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
                                maxChartAreaHeight -= minSize.height;
                            } else {
                                minSize = box.update(verticalBoxWidth, maxChartAreaHeight);
                                maxChartAreaWidth -= minSize.width;
                            }

                            minBoxSizes.push({
                                horizontal: isHorizontal,
                                minSize: minSize,
                                box: box,
                            });
                        }

                        helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);

                        // If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
                        var maxHorizontalLeftPadding = 0;
                        var maxHorizontalRightPadding = 0;
                        var maxVerticalTopPadding = 0;
                        var maxVerticalBottomPadding = 0;

                        helpers.each(topBoxes.concat(bottomBoxes), function (horizontalBox) {
                            if (horizontalBox.getPadding) {
                                var boxPadding = horizontalBox.getPadding();
                                maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left);
                                maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right);
                            }
                        });

                        helpers.each(leftBoxes.concat(rightBoxes), function (verticalBox) {
                            if (verticalBox.getPadding) {
                                var boxPadding = verticalBox.getPadding();
                                maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top);
                                maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom);
                            }
                        });

                        // At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
                        // be if the axes are drawn at their minimum sizes.
                        // Steps 5 & 6
                        var totalLeftBoxesWidth = leftPadding;
                        var totalRightBoxesWidth = rightPadding;
                        var totalTopBoxesHeight = topPadding;
                        var totalBottomBoxesHeight = bottomPadding;

                        // Function to fit a box
                        function fitBox(box) {
                            var minBoxSize = helpers.findNextWhere(minBoxSizes, function (minBox) {
                                return minBox.box === box;
                            });

                            if (minBoxSize) {
                                if (box.isHorizontal()) {
                                    var scaleMargin = {
                                        left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding),
                                        right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding),
                                        top: 0,
                                        bottom: 0
                                    };

                                    // Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends
                                    // on the margin. Sometimes they need to increase in size slightly
                                    box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
                                } else {
                                    box.update(minBoxSize.minSize.width, maxChartAreaHeight);
                                }
                            }
                        }

                        // Update, and calculate the left and right margins for the horizontal boxes
                        helpers.each(leftBoxes.concat(rightBoxes), fitBox);

                        helpers.each(leftBoxes, function (box) {
                            totalLeftBoxesWidth += box.width;
                        });

                        helpers.each(rightBoxes, function (box) {
                            totalRightBoxesWidth += box.width;
                        });

                        // Set the Left and Right margins for the horizontal boxes
                        helpers.each(topBoxes.concat(bottomBoxes), fitBox);

                        // Figure out how much margin is on the top and bottom of the vertical boxes
                        helpers.each(topBoxes, function (box) {
                            totalTopBoxesHeight += box.height;
                        });

                        helpers.each(bottomBoxes, function (box) {
                            totalBottomBoxesHeight += box.height;
                        });

                        function finalFitVerticalBox(box) {
                            var minBoxSize = helpers.findNextWhere(minBoxSizes, function (minSize) {
                                return minSize.box === box;
                            });

                            var scaleMargin = {
                                left: 0,
                                right: 0,
                                top: totalTopBoxesHeight,
                                bottom: totalBottomBoxesHeight
                            };

                            if (minBoxSize) {
                                box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
                            }
                        }

                        // Let the left layout know the final margin
                        helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);

                        // Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
                        totalLeftBoxesWidth = leftPadding;
                        totalRightBoxesWidth = rightPadding;
                        totalTopBoxesHeight = topPadding;
                        totalBottomBoxesHeight = bottomPadding;

                        helpers.each(leftBoxes, function (box) {
                            totalLeftBoxesWidth += box.width;
                        });

                        helpers.each(rightBoxes, function (box) {
                            totalRightBoxesWidth += box.width;
                        });

                        helpers.each(topBoxes, function (box) {
                            totalTopBoxesHeight += box.height;
                        });
                        helpers.each(bottomBoxes, function (box) {
                            totalBottomBoxesHeight += box.height;
                        });

                        // We may be adding some padding to account for rotated x axis labels
                        var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0);
                        totalLeftBoxesWidth += leftPaddingAddition;
                        totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0);

                        var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0);
                        totalTopBoxesHeight += topPaddingAddition;
                        totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0);

                        // Figure out if our chart area changed. This would occur if the dataset layout label rotation
                        // changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
                        // without calling `fit` again
                        var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
                        var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;

                        if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
                            helpers.each(leftBoxes, function (box) {
                                box.height = newMaxChartAreaHeight;
                            });

                            helpers.each(rightBoxes, function (box) {
                                box.height = newMaxChartAreaHeight;
                            });

                            helpers.each(topBoxes, function (box) {
                                if (!box.fullWidth) {
                                    box.width = newMaxChartAreaWidth;
                                }
                            });

                            helpers.each(bottomBoxes, function (box) {
                                if (!box.fullWidth) {
                                    box.width = newMaxChartAreaWidth;
                                }
                            });

                            maxChartAreaHeight = newMaxChartAreaHeight;
                            maxChartAreaWidth = newMaxChartAreaWidth;
                        }

                        // Step 7 - Position the boxes
                        var left = leftPadding + leftPaddingAddition;
                        var top = topPadding + topPaddingAddition;

                        function placeBox(box) {
                            if (box.isHorizontal()) {
                                box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth;
                                box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth;
                                box.top = top;
                                box.bottom = top + box.height;

                                // Move to next point
                                top = box.bottom;

                            } else {

                                box.left = left;
                                box.right = left + box.width;
                                box.top = totalTopBoxesHeight;
                                box.bottom = totalTopBoxesHeight + maxChartAreaHeight;

                                // Move to next point
                                left = box.right;
                            }
                        }

                        helpers.each(leftBoxes.concat(topBoxes), placeBox);

                        // Account for chart width and height
                        left += maxChartAreaWidth;
                        top += maxChartAreaHeight;

                        helpers.each(rightBoxes, placeBox);
                        helpers.each(bottomBoxes, placeBox);

                        // Step 8
                        chart.chartArea = {
                            left: totalLeftBoxesWidth,
                            top: totalTopBoxesHeight,
                            right: totalLeftBoxesWidth + maxChartAreaWidth,
                            bottom: totalTopBoxesHeight + maxChartAreaHeight
                        };

                        // Step 9
                        helpers.each(chartAreaBoxes, function (box) {
                            box.left = chart.chartArea.left;
                            box.top = chart.chartArea.top;
                            box.right = chart.chartArea.right;
                            box.bottom = chart.chartArea.bottom;

                            box.update(maxChartAreaWidth, maxChartAreaHeight);
                        });
                    }
                };

            }, {"45": 45}], 31: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var helpers = require(45);

                defaults._set('global', {
                    plugins: {}
                });

                /**
                 * The plugin service singleton
                 * @namespace Chart.plugins
                 * @since 2.1.0
                 */
                module.exports = {
                    /**
                     * Globally registered plugins.
                     * @private
                     */
                    _plugins: [],

                    /**
                     * This identifier is used to invalidate the descriptors cache attached to each chart
                     * when a global plugin is registered or unregistered. In this case, the cache ID is
                     * incremented and descriptors are regenerated during following API calls.
                     * @private
                     */
                    _cacheId: 0,

                    /**
                     * Registers the given plugin(s) if not already registered.
                     * @param {Array|Object} plugins plugin instance(s).
                     */
                    register: function (plugins) {
                        var p = this._plugins;
                        ([]).concat(plugins).forEach(function (plugin) {
                            if (p.indexOf(plugin) === -1) {
                                p.push(plugin);
                            }
                        });

                        this._cacheId++;
                    },

                    /**
                     * Unregisters the given plugin(s) only if registered.
                     * @param {Array|Object} plugins plugin instance(s).
                     */
                    unregister: function (plugins) {
                        var p = this._plugins;
                        ([]).concat(plugins).forEach(function (plugin) {
                            var idx = p.indexOf(plugin);
                            if (idx !== -1) {
                                p.splice(idx, 1);
                            }
                        });

                        this._cacheId++;
                    },

                    /**
                     * Remove all registered plugins.
                     * @since 2.1.5
                     */
                    clear: function () {
                        this._plugins = [];
                        this._cacheId++;
                    },

                    /**
                     * Returns the number of registered plugins?
                     * @returns {Number}
                     * @since 2.1.5
                     */
                    count: function () {
                        return this._plugins.length;
                    },

                    /**
                     * Returns all registered plugin instances.
                     * @returns {Array} array of plugin objects.
                     * @since 2.1.5
                     */
                    getAll: function () {
                        return this._plugins;
                    },

                    /**
                     * Calls enabled plugins for `chart` on the specified hook and with the given args.
                     * This method immediately returns as soon as a plugin explicitly returns false. The
                     * returned value can be used, for instance, to interrupt the current action.
                     * @param {Object} chart - The chart instance for which plugins should be called.
                     * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
                     * @param {Array} [args] - Extra arguments to apply to the hook call.
                     * @returns {Boolean} false if any of the plugins return false, else returns true.
                     */
                    notify: function (chart, hook, args) {
                        var descriptors = this.descriptors(chart);
                        var ilen = descriptors.length;
                        var i, descriptor, plugin, params, method;

                        for (i = 0; i < ilen; ++i) {
                            descriptor = descriptors[i];
                            plugin = descriptor.plugin;
                            method = plugin[hook];
                            if (typeof method === 'function') {
                                params = [chart].concat(args || []);
                                params.push(descriptor.options);
                                if (method.apply(plugin, params) === false) {
                                    return false;
                                }
                            }
                        }

                        return true;
                    },

                    /**
                     * Returns descriptors of enabled plugins for the given chart.
                     * @returns {Array} [{ plugin, options }]
                     * @private
                     */
                    descriptors: function (chart) {
                        var cache = chart.$plugins || (chart.$plugins = {});
                        if (cache.id === this._cacheId) {
                            return cache.descriptors;
                        }

                        var plugins = [];
                        var descriptors = [];
                        var config = (chart && chart.config) || {};
                        var options = (config.options && config.options.plugins) || {};

                        this._plugins.concat(config.plugins || []).forEach(function (plugin) {
                            var idx = plugins.indexOf(plugin);
                            if (idx !== -1) {
                                return;
                            }

                            var id = plugin.id;
                            var opts = options[id];
                            if (opts === false) {
                                return;
                            }

                            if (opts === true) {
                                opts = helpers.clone(defaults.global.plugins[id]);
                            }

                            plugins.push(plugin);
                            descriptors.push({
                                plugin: plugin,
                                options: opts || {}
                            });
                        });

                        cache.descriptors = descriptors;
                        cache.id = this._cacheId;
                        return descriptors;
                    },

                    /**
                     * Invalidates cache for the given chart: descriptors hold a reference on plugin option,
                     * but in some cases, this reference can be changed by the user when updating options.
                     * https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
                     * @private
                     */
                    _invalidate: function (chart) {
                        delete chart.$plugins;
                    }
                };

                /**
                 * Plugin extension hooks.
                 * @interface IPlugin
                 * @since 2.1.0
                 */
                /**
                 * @method IPlugin#beforeInit
                 * @desc Called before initializing `chart`.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#afterInit
                 * @desc Called after `chart` has been initialized and before the first update.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeUpdate
                 * @desc Called before updating `chart`. If any plugin returns `false`, the update
                 * is cancelled (and thus subsequent render(s)) until another `update` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart update.
                 */
                /**
                 * @method IPlugin#afterUpdate
                 * @desc Called after `chart` has been updated and before rendering. Note that this
                 * hook will not be called if the chart update has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeDatasetsUpdate
                 * @desc Called before updating the `chart` datasets. If any plugin returns `false`,
                 * the datasets update is cancelled until another `update` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} false to cancel the datasets update.
                 * @since version 2.1.5
                 */
                /**
                 * @method IPlugin#afterDatasetsUpdate
                 * @desc Called after the `chart` datasets have been updated. Note that this hook
                 * will not be called if the datasets update has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 * @since version 2.1.5
                 */
                /**
                 * @method IPlugin#beforeDatasetUpdate
                 * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin
                 * returns `false`, the datasets update is cancelled until another `update` is triggered.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Number} args.index - The dataset index.
                 * @param {Object} args.meta - The dataset metadata.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart datasets drawing.
                 */
                /**
                 * @method IPlugin#afterDatasetUpdate
                 * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note
                 * that this hook will not be called if the datasets update has been previously cancelled.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Number} args.index - The dataset index.
                 * @param {Object} args.meta - The dataset metadata.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeLayout
                 * @desc Called before laying out `chart`. If any plugin returns `false`,
                 * the layout update is cancelled until another `update` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart layout.
                 */
                /**
                 * @method IPlugin#afterLayout
                 * @desc Called after the `chart` has been layed out. Note that this hook will not
                 * be called if the layout update has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeRender
                 * @desc Called before rendering `chart`. If any plugin returns `false`,
                 * the rendering is cancelled until another `render` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart rendering.
                 */
                /**
                 * @method IPlugin#afterRender
                 * @desc Called after the `chart` has been fully rendered (and animation completed). Note
                 * that this hook will not be called if the rendering has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeDraw
                 * @desc Called before drawing `chart` at every animation frame specified by the given
                 * easing value. If any plugin returns `false`, the frame drawing is cancelled until
                 * another `render` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart drawing.
                 */
                /**
                 * @method IPlugin#afterDraw
                 * @desc Called after the `chart` has been drawn for the specific easing value. Note
                 * that this hook will not be called if the drawing has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeDatasetsDraw
                 * @desc Called before drawing the `chart` datasets. If any plugin returns `false`,
                 * the datasets drawing is cancelled until another `render` is triggered.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart datasets drawing.
                 */
                /**
                 * @method IPlugin#afterDatasetsDraw
                 * @desc Called after the `chart` datasets have been drawn. Note that this hook
                 * will not be called if the datasets drawing has been previously cancelled.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeDatasetDraw
                 * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets
                 * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing
                 * is cancelled until another `render` is triggered.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Number} args.index - The dataset index.
                 * @param {Object} args.meta - The dataset metadata.
                 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart datasets drawing.
                 */
                /**
                 * @method IPlugin#afterDatasetDraw
                 * @desc Called after the `chart` datasets at the given `args.index` have been drawn
                 * (datasets are drawn in the reverse order). Note that this hook will not be called
                 * if the datasets drawing has been previously cancelled.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Number} args.index - The dataset index.
                 * @param {Object} args.meta - The dataset metadata.
                 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeTooltipDraw
                 * @desc Called before drawing the `tooltip`. If any plugin returns `false`,
                 * the tooltip drawing is cancelled until another `render` is triggered.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Object} args.tooltip - The tooltip.
                 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 * @returns {Boolean} `false` to cancel the chart tooltip drawing.
                 */
                /**
                 * @method IPlugin#afterTooltipDraw
                 * @desc Called after drawing the `tooltip`. Note that this hook will not
                 * be called if the tooltip drawing has been previously cancelled.
                 * @param {Chart} chart - The chart instance.
                 * @param {Object} args - The call arguments.
                 * @param {Object} args.tooltip - The tooltip.
                 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#beforeEvent
                 * @desc Called before processing the specified `event`. If any plugin returns `false`,
                 * the event will be discarded.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {IEvent} event - The event object.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#afterEvent
                 * @desc Called after the `event` has been consumed. Note that this hook
                 * will not be called if the `event` has been previously discarded.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {IEvent} event - The event object.
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#resize
                 * @desc Called after the chart as been resized.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Number} size - The new canvas display size (eq. canvas.style width & height).
                 * @param {Object} options - The plugin options.
                 */
                /**
                 * @method IPlugin#destroy
                 * @desc Called after the chart as been destroyed.
                 * @param {Chart.Controller} chart - The chart instance.
                 * @param {Object} options - The plugin options.
                 */

            }, {"25": 25, "45": 45}], 32: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);
                var Ticks = require(34);

                defaults._set('scale', {
                    display: true,
                    position: 'left',
                    offset: false,

                    // grid line settings
                    gridLines: {
                        display: true,
                        color: 'rgba(0, 0, 0, 0.1)',
                        lineWidth: 1,
                        drawBorder: true,
                        drawOnChartArea: true,
                        drawTicks: true,
                        tickMarkLength: 10,
                        zeroLineWidth: 1,
                        zeroLineColor: 'rgba(0,0,0,0.25)',
                        zeroLineBorderDash: [],
                        zeroLineBorderDashOffset: 0.0,
                        offsetGridLines: false,
                        borderDash: [],
                        borderDashOffset: 0.0
                    },

                    // scale label
                    scaleLabel: {
                        // display property
                        display: false,

                        // actual label
                        labelString: '',

                        // line height
                        lineHeight: 1.2,

                        // top/bottom padding
                        padding: {
                            top: 4,
                            bottom: 4
                        }
                    },

                    // label settings
                    ticks: {
                        beginAtZero: false,
                        minRotation: 0,
                        maxRotation: 50,
                        mirror: false,
                        padding: 0,
                        reverse: false,
                        display: true,
                        autoSkip: true,
                        autoSkipPadding: 0,
                        labelOffset: 0,
                        // We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
                        callback: Ticks.formatters.values,
                        minor: {},
                        major: {}
                    }
                });

                function labelsFromTicks(ticks) {
                    var labels = [];
                    var i, ilen;

                    for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                        labels.push(ticks[i].label);
                    }

                    return labels;
                }

                function getLineValue(scale, index, offsetGridLines) {
                    var lineValue = scale.getPixelForTick(index);

                    if (offsetGridLines) {
                        if (index === 0) {
                            lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
                        } else {
                            lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
                        }
                    }
                    return lineValue;
                }

                module.exports = function (Chart) {

                    function computeTextSize(context, tick, font) {
                        return helpers.isArray(tick) ?
                                helpers.longestText(context, font, tick) :
                                context.measureText(tick).width;
                    }

                    function parseFontOptions(options) {
                        var valueOrDefault = helpers.valueOrDefault;
                        var globalDefaults = defaults.global;
                        var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
                        var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle);
                        var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily);

                        return {
                            size: size,
                            style: style,
                            family: family,
                            font: helpers.fontString(size, style, family)
                        };
                    }

                    function parseLineHeight(options) {
                        return helpers.options.toLineHeight(
                                helpers.valueOrDefault(options.lineHeight, 1.2),
                                helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize));
                    }

                    Chart.Scale = Element.extend({
                        /**
                         * Get the padding needed for the scale
                         * @method getPadding
                         * @private
                         * @returns {Padding} the necessary padding
                         */
                        getPadding: function () {
                            var me = this;
                            return {
                                left: me.paddingLeft || 0,
                                top: me.paddingTop || 0,
                                right: me.paddingRight || 0,
                                bottom: me.paddingBottom || 0
                            };
                        },

                        /**
                         * Returns the scale tick objects ({label, major})
                         * @since 2.7
                         */
                        getTicks: function () {
                            return this._ticks;
                        },

                        // These methods are ordered by lifecyle. Utilities then follow.
                        // Any function defined here is inherited by all scale types.
                        // Any function can be extended by the scale type

                        mergeTicksOptions: function () {
                            var ticks = this.options.ticks;
                            if (ticks.minor === false) {
                                ticks.minor = {
                                    display: false
                                };
                            }
                            if (ticks.major === false) {
                                ticks.major = {
                                    display: false
                                };
                            }
                            for (var key in ticks) {
                                if (key !== 'major' && key !== 'minor') {
                                    if (typeof ticks.minor[key] === 'undefined') {
                                        ticks.minor[key] = ticks[key];
                                    }
                                    if (typeof ticks.major[key] === 'undefined') {
                                        ticks.major[key] = ticks[key];
                                    }
                                }
                            }
                        },
                        beforeUpdate: function () {
                            helpers.callback(this.options.beforeUpdate, [this]);
                        },
                        update: function (maxWidth, maxHeight, margins) {
                            var me = this;
                            var i, ilen, labels, label, ticks, tick;

                            // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                            me.beforeUpdate();

                            // Absorb the master measurements
                            me.maxWidth = maxWidth;
                            me.maxHeight = maxHeight;
                            me.margins = helpers.extend({
                                left: 0,
                                right: 0,
                                top: 0,
                                bottom: 0
                            }, margins);
                            me.longestTextCache = me.longestTextCache || {};

                            // Dimensions
                            me.beforeSetDimensions();
                            me.setDimensions();
                            me.afterSetDimensions();

                            // Data min/max
                            me.beforeDataLimits();
                            me.determineDataLimits();
                            me.afterDataLimits();

                            // Ticks - `this.ticks` is now DEPRECATED!
                            // Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
                            // and must not be accessed directly from outside this class. `this.ticks` being
                            // around for long time and not marked as private, we can't change its structure
                            // without unexpected breaking changes. If you need to access the scale ticks,
                            // use scale.getTicks() instead.

                            me.beforeBuildTicks();

                            // New implementations should return an array of objects but for BACKWARD COMPAT,
                            // we still support no return (`this.ticks` internally set by calling this method).
                            ticks = me.buildTicks() || [];

                            me.afterBuildTicks();

                            me.beforeTickToLabelConversion();

                            // New implementations should return the formatted tick labels but for BACKWARD
                            // COMPAT, we still support no return (`this.ticks` internally changed by calling
                            // this method and supposed to contain only string values).
                            labels = me.convertTicksToLabels(ticks) || me.ticks;

                            me.afterTickToLabelConversion();

                            me.ticks = labels;   // BACKWARD COMPATIBILITY

                            // IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!

                            // BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
                            for (i = 0, ilen = labels.length; i < ilen; ++i) {
                                label = labels[i];
                                tick = ticks[i];
                                if (!tick) {
                                    ticks.push(tick = {
                                        label: label,
                                        major: false
                                    });
                                } else {
                                    tick.label = label;
                                }
                            }

                            me._ticks = ticks;

                            // Tick Rotation
                            me.beforeCalculateTickRotation();
                            me.calculateTickRotation();
                            me.afterCalculateTickRotation();
                            // Fit
                            me.beforeFit();
                            me.fit();
                            me.afterFit();
                            //
                            me.afterUpdate();

                            return me.minSize;

                        },
                        afterUpdate: function () {
                            helpers.callback(this.options.afterUpdate, [this]);
                        },

                        //

                        beforeSetDimensions: function () {
                            helpers.callback(this.options.beforeSetDimensions, [this]);
                        },
                        setDimensions: function () {
                            var me = this;
                            // Set the unconstrained dimension before label rotation
                            if (me.isHorizontal()) {
                                // Reset position before calculating rotation
                                me.width = me.maxWidth;
                                me.left = 0;
                                me.right = me.width;
                            } else {
                                me.height = me.maxHeight;

                                // Reset position before calculating rotation
                                me.top = 0;
                                me.bottom = me.height;
                            }

                            // Reset padding
                            me.paddingLeft = 0;
                            me.paddingTop = 0;
                            me.paddingRight = 0;
                            me.paddingBottom = 0;
                        },
                        afterSetDimensions: function () {
                            helpers.callback(this.options.afterSetDimensions, [this]);
                        },

                        // Data limits
                        beforeDataLimits: function () {
                            helpers.callback(this.options.beforeDataLimits, [this]);
                        },
                        determineDataLimits: helpers.noop,
                        afterDataLimits: function () {
                            helpers.callback(this.options.afterDataLimits, [this]);
                        },

                        //
                        beforeBuildTicks: function () {
                            helpers.callback(this.options.beforeBuildTicks, [this]);
                        },
                        buildTicks: helpers.noop,
                        afterBuildTicks: function () {
                            helpers.callback(this.options.afterBuildTicks, [this]);
                        },

                        beforeTickToLabelConversion: function () {
                            helpers.callback(this.options.beforeTickToLabelConversion, [this]);
                        },
                        convertTicksToLabels: function () {
                            var me = this;
                            // Convert ticks to strings
                            var tickOpts = me.options.ticks;
                            me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
                        },
                        afterTickToLabelConversion: function () {
                            helpers.callback(this.options.afterTickToLabelConversion, [this]);
                        },

                        //

                        beforeCalculateTickRotation: function () {
                            helpers.callback(this.options.beforeCalculateTickRotation, [this]);
                        },
                        calculateTickRotation: function () {
                            var me = this;
                            var context = me.ctx;
                            var tickOpts = me.options.ticks;
                            var labels = labelsFromTicks(me._ticks);

                            // Get the width of each grid by calculating the difference
                            // between x offsets between 0 and 1.
                            var tickFont = parseFontOptions(tickOpts);
                            context.font = tickFont.font;

                            var labelRotation = tickOpts.minRotation || 0;

                            if (labels.length && me.options.display && me.isHorizontal()) {
                                var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache);
                                var labelWidth = originalLabelWidth;
                                var cosRotation, sinRotation;

                                // Allow 3 pixels x2 padding either side for label readability
                                var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;

                                // Max label rotation can be set or default to 90 - also act as a loop counter
                                while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
                                    var angleRadians = helpers.toRadians(labelRotation);
                                    cosRotation = Math.cos(angleRadians);
                                    sinRotation = Math.sin(angleRadians);

                                    if (sinRotation * originalLabelWidth > me.maxHeight) {
                                        // go back one step
                                        labelRotation--;
                                        break;
                                    }

                                    labelRotation++;
                                    labelWidth = cosRotation * originalLabelWidth;
                                }
                            }

                            me.labelRotation = labelRotation;
                        },
                        afterCalculateTickRotation: function () {
                            helpers.callback(this.options.afterCalculateTickRotation, [this]);
                        },

                        //

                        beforeFit: function () {
                            helpers.callback(this.options.beforeFit, [this]);
                        },
                        fit: function () {
                            var me = this;
                            // Reset
                            var minSize = me.minSize = {
                                width: 0,
                                height: 0
                            };

                            var labels = labelsFromTicks(me._ticks);

                            var opts = me.options;
                            var tickOpts = opts.ticks;
                            var scaleLabelOpts = opts.scaleLabel;
                            var gridLineOpts = opts.gridLines;
                            var display = opts.display;
                            var isHorizontal = me.isHorizontal();

                            var tickFont = parseFontOptions(tickOpts);
                            var tickMarkLength = opts.gridLines.tickMarkLength;

                            // Width
                            if (isHorizontal) {
                                // subtract the margins to line up with the chartArea if we are a full width scale
                                minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
                            } else {
                                minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
                            }

                            // height
                            if (isHorizontal) {
                                minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
                            } else {
                                minSize.height = me.maxHeight; // fill all the height
                            }

                            // Are we showing a title for the scale?
                            if (scaleLabelOpts.display && display) {
                                var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts);
                                var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding);
                                var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height;

                                if (isHorizontal) {
                                    minSize.height += deltaHeight;
                                } else {
                                    minSize.width += deltaHeight;
                                }
                            }

                            // Don't bother fitting the ticks if we are not showing them
                            if (tickOpts.display && display) {
                                var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache);
                                var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels);
                                var lineSpace = tickFont.size * 0.5;
                                var tickPadding = me.options.ticks.padding;

                                if (isHorizontal) {
                                    // A horizontal axis is more constrained by the height.
                                    me.longestLabelWidth = largestTextWidth;

                                    var angleRadians = helpers.toRadians(me.labelRotation);
                                    var cosRotation = Math.cos(angleRadians);
                                    var sinRotation = Math.sin(angleRadians);

                                    // TODO - improve this calculation
                                    var labelHeight = (sinRotation * largestTextWidth)
                                            + (tickFont.size * tallestLabelHeightInLines)
                                            + (lineSpace * (tallestLabelHeightInLines - 1))
                                            + lineSpace; // padding

                                    minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);

                                    me.ctx.font = tickFont.font;
                                    var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font);
                                    var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font);

                                    // Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
                                    // which means that the right padding is dominated by the font height
                                    if (me.labelRotation !== 0) {
                                        me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges
                                        me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3;
                                    } else {
                                        me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
                                        me.paddingRight = lastLabelWidth / 2 + 3;
                                    }
                                } else {
                                    // A vertical axis is more constrained by the width. Labels are the
                                    // dominant factor here, so get that length first and account for padding
                                    if (tickOpts.mirror) {
                                        largestTextWidth = 0;
                                    } else {
                                        // use lineSpace for consistency with horizontal axis
                                        // tickPadding is not implemented for horizontal
                                        largestTextWidth += tickPadding + lineSpace;
                                    }

                                    minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);

                                    me.paddingTop = tickFont.size / 2;
                                    me.paddingBottom = tickFont.size / 2;
                                }
                            }

                            me.handleMargins();

                            me.width = minSize.width;
                            me.height = minSize.height;
                        },

                        /**
                         * Handle margins and padding interactions
                         * @private
                         */
                        handleMargins: function () {
                            var me = this;
                            if (me.margins) {
                                me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
                                me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
                                me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
                                me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
                            }
                        },

                        afterFit: function () {
                            helpers.callback(this.options.afterFit, [this]);
                        },

                        // Shared Methods
                        isHorizontal: function () {
                            return this.options.position === 'top' || this.options.position === 'bottom';
                        },
                        isFullWidth: function () {
                            return (this.options.fullWidth);
                        },

                        // Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
                        getRightValue: function (rawValue) {
                            // Null and undefined values first
                            if (helpers.isNullOrUndef(rawValue)) {
                                return NaN;
                            }
                            // isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
                            if (typeof rawValue === 'number' && !isFinite(rawValue)) {
                                return NaN;
                            }
                            // If it is in fact an object, dive in one more level
                            if (rawValue) {
                                if (this.isHorizontal()) {
                                    if (rawValue.x !== undefined) {
                                        return this.getRightValue(rawValue.x);
                                    }
                                } else if (rawValue.y !== undefined) {
                                    return this.getRightValue(rawValue.y);
                                }
                            }

                            // Value is good, return it
                            return rawValue;
                        },

                        /**
                         * Used to get the value to display in the tooltip for the data at the given index
                         * @param index
                         * @param datasetIndex
                         */
                        getLabelForIndex: helpers.noop,

                        /**
                         * Returns the location of the given data point. Value can either be an index or a numerical value
                         * The coordinate (0, 0) is at the upper-left corner of the canvas
                         * @param value
                         * @param index
                         * @param datasetIndex
                         */
                        getPixelForValue: helpers.noop,

                        /**
                         * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
                         * The coordinate (0, 0) is at the upper-left corner of the canvas
                         * @param pixel
                         */
                        getValueForPixel: helpers.noop,

                        /**
                         * Returns the location of the tick at the given index
                         * The coordinate (0, 0) is at the upper-left corner of the canvas
                         */
                        getPixelForTick: function (index) {
                            var me = this;
                            var offset = me.options.offset;
                            if (me.isHorizontal()) {
                                var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
                                var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
                                var pixel = (tickWidth * index) + me.paddingLeft;

                                if (offset) {
                                    pixel += tickWidth / 2;
                                }

                                var finalVal = me.left + Math.round(pixel);
                                finalVal += me.isFullWidth() ? me.margins.left : 0;
                                return finalVal;
                            }
                            var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
                            return me.top + (index * (innerHeight / (me._ticks.length - 1)));
                        },

                        /**
                         * Utility for getting the pixel location of a percentage of scale
                         * The coordinate (0, 0) is at the upper-left corner of the canvas
                         */
                        getPixelForDecimal: function (decimal) {
                            var me = this;
                            if (me.isHorizontal()) {
                                var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
                                var valueOffset = (innerWidth * decimal) + me.paddingLeft;

                                var finalVal = me.left + Math.round(valueOffset);
                                finalVal += me.isFullWidth() ? me.margins.left : 0;
                                return finalVal;
                            }
                            return me.top + (decimal * me.height);
                        },

                        /**
                         * Returns the pixel for the minimum chart value
                         * The coordinate (0, 0) is at the upper-left corner of the canvas
                         */
                        getBasePixel: function () {
                            return this.getPixelForValue(this.getBaseValue());
                        },

                        getBaseValue: function () {
                            var me = this;
                            var min = me.min;
                            var max = me.max;

                            return me.beginAtZero ? 0 :
                                    min < 0 && max < 0 ? max :
                                    min > 0 && max > 0 ? min :
                                    0;
                        },

                        /**
                         * Returns a subset of ticks to be plotted to avoid overlapping labels.
                         * @private
                         */
                        _autoSkip: function (ticks) {
                            var skipRatio;
                            var me = this;
                            var isHorizontal = me.isHorizontal();
                            var optionTicks = me.options.ticks.minor;
                            var tickCount = ticks.length;
                            var labelRotationRadians = helpers.toRadians(me.labelRotation);
                            var cosRotation = Math.cos(labelRotationRadians);
                            var longestRotatedLabel = me.longestLabelWidth * cosRotation;
                            var result = [];
                            var i, tick, shouldSkip;

                            // figure out the maximum number of gridlines to show
                            var maxTicks;
                            if (optionTicks.maxTicksLimit) {
                                maxTicks = optionTicks.maxTicksLimit;
                            }

                            if (isHorizontal) {
                                skipRatio = false;

                                if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) {
                                    skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight)));
                                }

                                // if they defined a max number of optionTicks,
                                // increase skipRatio until that number is met
                                if (maxTicks && tickCount > maxTicks) {
                                    skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks));
                                }
                            }

                            for (i = 0; i < tickCount; i++) {
                                tick = ticks[i];

                                // Since we always show the last tick,we need may need to hide the last shown one before
                                shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount);
                                if (shouldSkip && i !== tickCount - 1) {
                                    // leave tick in place but make sure it's not displayed (#4635)
                                    delete tick.label;
                                }
                                result.push(tick);
                            }
                            return result;
                        },

                        // Actually draw the scale on the canvas
                        // @param {rectangle} chartArea : the area of the chart to draw full grid lines on
                        draw: function (chartArea) {
                            var me = this;
                            var options = me.options;
                            if (!options.display) {
                                return;
                            }

                            var context = me.ctx;
                            var globalDefaults = defaults.global;
                            var optionTicks = options.ticks.minor;
                            var optionMajorTicks = options.ticks.major || optionTicks;
                            var gridLines = options.gridLines;
                            var scaleLabel = options.scaleLabel;

                            var isRotated = me.labelRotation !== 0;
                            var isHorizontal = me.isHorizontal();

                            var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
                            var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
                            var tickFont = parseFontOptions(optionTicks);
                            var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor);
                            var majorTickFont = parseFontOptions(optionMajorTicks);

                            var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;

                            var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
                            var scaleLabelFont = parseFontOptions(scaleLabel);
                            var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding);
                            var labelRotationRadians = helpers.toRadians(me.labelRotation);

                            var itemsToDraw = [];

                            var axisWidth = me.options.gridLines.lineWidth;
                            var xTickStart = options.position === 'right' ? me.right : me.right - axisWidth - tl;
                            var xTickEnd = options.position === 'right' ? me.right + tl : me.right;
                            var yTickStart = options.position === 'bottom' ? me.top + axisWidth : me.bottom - tl - axisWidth;
                            var yTickEnd = options.position === 'bottom' ? me.top + axisWidth + tl : me.bottom + axisWidth;

                            helpers.each(ticks, function (tick, index) {
                                // autoskipper skipped this tick (#4635)
                                if (helpers.isNullOrUndef(tick.label)) {
                                    return;
                                }

                                var label = tick.label;
                                var lineWidth, lineColor, borderDash, borderDashOffset;
                                if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
                                    // Draw the first index specially
                                    lineWidth = gridLines.zeroLineWidth;
                                    lineColor = gridLines.zeroLineColor;
                                    borderDash = gridLines.zeroLineBorderDash;
                                    borderDashOffset = gridLines.zeroLineBorderDashOffset;
                                } else {
                                    lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index);
                                    lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index);
                                    borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
                                    borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
                                }

                                // Common properties
                                var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
                                var textAlign = 'middle';
                                var textBaseline = 'middle';
                                var tickPadding = optionTicks.padding;

                                if (isHorizontal) {
                                    var labelYOffset = tl + tickPadding;

                                    if (options.position === 'bottom') {
                                        // bottom
                                        textBaseline = !isRotated ? 'top' : 'middle';
                                        textAlign = !isRotated ? 'center' : 'right';
                                        labelY = me.top + labelYOffset;
                                    } else {
                                        // top
                                        textBaseline = !isRotated ? 'bottom' : 'middle';
                                        textAlign = !isRotated ? 'center' : 'left';
                                        labelY = me.bottom - labelYOffset;
                                    }

                                    var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
                                    if (xLineValue < me.left) {
                                        lineColor = 'rgba(0,0,0,0)';
                                    }
                                    xLineValue += helpers.aliasPixel(lineWidth);

                                    labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)

                                    tx1 = tx2 = x1 = x2 = xLineValue;
                                    ty1 = yTickStart;
                                    ty2 = yTickEnd;
                                    y1 = chartArea.top;
                                    y2 = chartArea.bottom + axisWidth;
                                } else {
                                    var isLeft = options.position === 'left';
                                    var labelXOffset;

                                    if (optionTicks.mirror) {
                                        textAlign = isLeft ? 'left' : 'right';
                                        labelXOffset = tickPadding;
                                    } else {
                                        textAlign = isLeft ? 'right' : 'left';
                                        labelXOffset = tl + tickPadding;
                                    }

                                    labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset;

                                    var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
                                    if (yLineValue < me.top) {
                                        lineColor = 'rgba(0,0,0,0)';
                                    }
                                    yLineValue += helpers.aliasPixel(lineWidth);

                                    labelY = me.getPixelForTick(index) + optionTicks.labelOffset;

                                    tx1 = xTickStart;
                                    tx2 = xTickEnd;
                                    x1 = chartArea.left;
                                    x2 = chartArea.right + axisWidth;
                                    ty1 = ty2 = y1 = y2 = yLineValue;
                                }

                                itemsToDraw.push({
                                    tx1: tx1,
                                    ty1: ty1,
                                    tx2: tx2,
                                    ty2: ty2,
                                    x1: x1,
                                    y1: y1,
                                    x2: x2,
                                    y2: y2,
                                    labelX: labelX,
                                    labelY: labelY,
                                    glWidth: lineWidth,
                                    glColor: lineColor,
                                    glBorderDash: borderDash,
                                    glBorderDashOffset: borderDashOffset,
                                    rotation: -1 * labelRotationRadians,
                                    label: label,
                                    major: tick.major,
                                    textBaseline: textBaseline,
                                    textAlign: textAlign
                                });
                            });

                            // Draw all of the tick labels, tick marks, and grid lines at the correct places
                            helpers.each(itemsToDraw, function (itemToDraw) {
                                if (gridLines.display) {
                                    context.save();
                                    context.lineWidth = itemToDraw.glWidth;
                                    context.strokeStyle = itemToDraw.glColor;
                                    if (context.setLineDash) {
                                        context.setLineDash(itemToDraw.glBorderDash);
                                        context.lineDashOffset = itemToDraw.glBorderDashOffset;
                                    }

                                    context.beginPath();

                                    if (gridLines.drawTicks) {
                                        context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
                                        context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
                                    }

                                    if (gridLines.drawOnChartArea) {
                                        context.moveTo(itemToDraw.x1, itemToDraw.y1);
                                        context.lineTo(itemToDraw.x2, itemToDraw.y2);
                                    }

                                    context.stroke();
                                    context.restore();
                                }

                                if (optionTicks.display) {
                                    // Make sure we draw text in the correct color and font
                                    context.save();
                                    context.translate(itemToDraw.labelX, itemToDraw.labelY);
                                    context.rotate(itemToDraw.rotation);
                                    context.font = itemToDraw.major ? majorTickFont.font : tickFont.font;
                                    context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
                                    context.textBaseline = itemToDraw.textBaseline;
                                    context.textAlign = itemToDraw.textAlign;

                                    var label = itemToDraw.label;
                                    if (helpers.isArray(label)) {
                                        var lineCount = label.length;
                                        var lineHeight = tickFont.size * 1.5;
                                        var y = me.isHorizontal() ? 0 : -lineHeight * (lineCount - 1) / 2;

                                        for (var i = 0; i < lineCount; ++i) {
                                            // We just make sure the multiline element is a string here..
                                            context.fillText('' + label[i], 0, y);
                                            // apply same lineSpacing as calculated @ L#320
                                            y += lineHeight;
                                        }
                                    } else {
                                        context.fillText(label, 0, 0);
                                    }
                                    context.restore();
                                }
                            });

                            if (scaleLabel.display) {
                                // Draw the scale label
                                var scaleLabelX;
                                var scaleLabelY;
                                var rotation = 0;
                                var halfLineHeight = parseLineHeight(scaleLabel) / 2;

                                if (isHorizontal) {
                                    scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
                                    scaleLabelY = options.position === 'bottom'
                                            ? me.bottom - halfLineHeight - scaleLabelPadding.bottom
                                            : me.top + halfLineHeight + scaleLabelPadding.top;
                                } else {
                                    var isLeft = options.position === 'left';
                                    scaleLabelX = isLeft
                                            ? me.left + halfLineHeight + scaleLabelPadding.top
                                            : me.right - halfLineHeight - scaleLabelPadding.top;
                                    scaleLabelY = me.top + ((me.bottom - me.top) / 2);
                                    rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
                                }

                                context.save();
                                context.translate(scaleLabelX, scaleLabelY);
                                context.rotate(rotation);
                                context.textAlign = 'center';
                                context.textBaseline = 'middle';
                                context.fillStyle = scaleLabelFontColor; // render in correct colour
                                context.font = scaleLabelFont.font;
                                context.fillText(scaleLabel.labelString, 0, 0);
                                context.restore();
                            }

                            if (gridLines.drawBorder) {
                                // Draw the line at the edge of the axis
                                context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0);
                                context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0);
                                var x1 = me.left;
                                var x2 = me.right + axisWidth;
                                var y1 = me.top;
                                var y2 = me.bottom + axisWidth;

                                var aliasPixel = helpers.aliasPixel(context.lineWidth);
                                if (isHorizontal) {
                                    y1 = y2 = options.position === 'top' ? me.bottom : me.top;
                                    y1 += aliasPixel;
                                    y2 += aliasPixel;
                                } else {
                                    x1 = x2 = options.position === 'left' ? me.right : me.left;
                                    x1 += aliasPixel;
                                    x2 += aliasPixel;
                                }

                                context.beginPath();
                                context.moveTo(x1, y1);
                                context.lineTo(x2, y2);
                                context.stroke();
                            }
                        }
                    });
                };

            }, {"25": 25, "26": 26, "34": 34, "45": 45}], 33: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var helpers = require(45);
                var layouts = require(30);

                module.exports = function (Chart) {

                    Chart.scaleService = {
                        // Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
                        // use the new chart options to grab the correct scale
                        constructors: {},
                        // Use a registration function so that we can move to an ES6 map when we no longer need to support
                        // old browsers

                        // Scale config defaults
                        defaults: {},
                        registerScaleType: function (type, scaleConstructor, scaleDefaults) {
                            this.constructors[type] = scaleConstructor;
                            this.defaults[type] = helpers.clone(scaleDefaults);
                        },
                        getScaleConstructor: function (type) {
                            return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
                        },
                        getScaleDefaults: function (type) {
                            // Return the scale defaults merged with the global settings so that we always use the latest ones
                            return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {};
                        },
                        updateScaleDefaults: function (type, additions) {
                            var me = this;
                            if (me.defaults.hasOwnProperty(type)) {
                                me.defaults[type] = helpers.extend(me.defaults[type], additions);
                            }
                        },
                        addScalesToLayout: function (chart) {
                            // Adds each scale to the chart.boxes array to be sized accordingly
                            helpers.each(chart.scales, function (scale) {
                                // Set ILayoutItem parameters for backwards compatibility
                                scale.fullWidth = scale.options.fullWidth;
                                scale.position = scale.options.position;
                                scale.weight = scale.options.weight;
                                layouts.addBox(chart, scale);
                            });
                        }
                    };
                };

            }, {"25": 25, "30": 30, "45": 45}], 34: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                /**
                 * Namespace to hold static tick generation functions
                 * @namespace Chart.Ticks
                 */
                module.exports = {
                    /**
                     * Namespace to hold formatters for different types of ticks
                     * @namespace Chart.Ticks.formatters
                     */
                    formatters: {
                        /**
                         * Formatter for value labels
                         * @method Chart.Ticks.formatters.values
                         * @param value the value to display
                         * @return {String|Array} the label to display
                         */
                        values: function (value) {
                            return helpers.isArray(value) ? value : '' + value;
                        },

                        /**
                         * Formatter for linear numeric ticks
                         * @method Chart.Ticks.formatters.linear
                         * @param tickValue {Number} the value to be formatted
                         * @param index {Number} the position of the tickValue parameter in the ticks array
                         * @param ticks {Array<Number>} the list of ticks being converted
                         * @return {String} string representation of the tickValue parameter
                         */
                        linear: function (tickValue, index, ticks) {
                            // If we have lots of ticks, don't use the ones
                            var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];

                            // If we have a number like 2.5 as the delta, figure out how many decimal places we need
                            if (Math.abs(delta) > 1) {
                                if (tickValue !== Math.floor(tickValue)) {
                                    // not an integer
                                    delta = tickValue - Math.floor(tickValue);
                                }
                            }

                            var logDelta = helpers.log10(Math.abs(delta));
                            var tickString = '';

                            if (tickValue !== 0) {
                                var numDecimal = -1 * Math.floor(logDelta);
                                numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
                                tickString = tickValue.toFixed(numDecimal);
                            } else {
                                tickString = '0'; // never show decimal places for 0
                            }

                            return tickString;
                        },

                        logarithmic: function (tickValue, index, ticks) {
                            var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue))));

                            if (tickValue === 0) {
                                return '0';
                            } else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
                                return tickValue.toExponential();
                            }
                            return '';
                        }
                    }
                };

            }, {"45": 45}], 35: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);

                defaults._set('global', {
                    tooltips: {
                        enabled: true,
                        custom: null,
                        mode: 'nearest',
                        position: 'average',
                        intersect: true,
                        backgroundColor: 'rgba(0,0,0,0.8)',
                        titleFontStyle: 'bold',
                        titleSpacing: 2,
                        titleMarginBottom: 6,
                        titleFontColor: '#fff',
                        titleAlign: 'left',
                        bodySpacing: 2,
                        bodyFontColor: '#fff',
                        bodyAlign: 'left',
                        footerFontStyle: 'bold',
                        footerSpacing: 2,
                        footerMarginTop: 6,
                        footerFontColor: '#fff',
                        footerAlign: 'left',
                        yPadding: 6,
                        xPadding: 6,
                        caretPadding: 2,
                        caretSize: 5,
                        cornerRadius: 6,
                        multiKeyBackground: '#fff',
                        displayColors: true,
                        borderColor: 'rgba(0,0,0,0)',
                        borderWidth: 0,
                        callbacks: {
                            // Args are: (tooltipItems, data)
                            beforeTitle: helpers.noop,
                            title: function (tooltipItems, data) {
                                // Pick first xLabel for now
                                var title = '';
                                var labels = data.labels;
                                var labelCount = labels ? labels.length : 0;

                                if (tooltipItems.length > 0) {
                                    var item = tooltipItems[0];

                                    if (item.xLabel) {
                                        title = item.xLabel;
                                    } else if (labelCount > 0 && item.index < labelCount) {
                                        title = labels[item.index];
                                    }
                                }

                                return title;
                            },
                            afterTitle: helpers.noop,

                            // Args are: (tooltipItems, data)
                            beforeBody: helpers.noop,

                            // Args are: (tooltipItem, data)
                            beforeLabel: helpers.noop,
                            label: function (tooltipItem, data) {
                                var label = data.datasets[tooltipItem.datasetIndex].label || '';

                                if (label) {
                                    label += ': ';
                                }
                                label += tooltipItem.yLabel;
                                return label;
                            },
                            labelColor: function (tooltipItem, chart) {
                                var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
                                var activeElement = meta.data[tooltipItem.index];
                                var view = activeElement._view;
                                return {
                                    borderColor: view.borderColor,
                                    backgroundColor: view.backgroundColor
                                };
                            },
                            labelTextColor: function () {
                                return this._options.bodyFontColor;
                            },
                            afterLabel: helpers.noop,

                            // Args are: (tooltipItems, data)
                            afterBody: helpers.noop,

                            // Args are: (tooltipItems, data)
                            beforeFooter: helpers.noop,
                            footer: helpers.noop,
                            afterFooter: helpers.noop
                        }
                    }
                });

                module.exports = function (Chart) {

                    /**
                     * Helper method to merge the opacity into a color
                     */
                    function mergeOpacity(colorString, opacity) {
                        var color = helpers.color(colorString);
                        return color.alpha(opacity * color.alpha()).rgbaString();
                    }

                    // Helper to push or concat based on if the 2nd parameter is an array or not
                    function pushOrConcat(base, toPush) {
                        if (toPush) {
                            if (helpers.isArray(toPush)) {
                                // base = base.concat(toPush);
                                Array.prototype.push.apply(base, toPush);
                            } else {
                                base.push(toPush);
                            }
                        }

                        return base;
                    }

                    // Private helper to create a tooltip item model
                    // @param element : the chart element (point, arc, bar) to create the tooltip item for
                    // @return : new tooltip item
                    function createTooltipItem(element) {
                        var xScale = element._xScale;
                        var yScale = element._yScale || element._scale; // handle radar || polarArea charts
                        var index = element._index;
                        var datasetIndex = element._datasetIndex;

                        return {
                            xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
                            yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
                            index: index,
                            datasetIndex: datasetIndex,
                            x: element._model.x,
                            y: element._model.y
                        };
                    }

                    /**
                     * Helper to get the reset model for the tooltip
                     * @param tooltipOpts {Object} the tooltip options
                     */
                    function getBaseModel(tooltipOpts) {
                        var globalDefaults = defaults.global;
                        var valueOrDefault = helpers.valueOrDefault;

                        return {
                            // Positioning
                            xPadding: tooltipOpts.xPadding,
                            yPadding: tooltipOpts.yPadding,
                            xAlign: tooltipOpts.xAlign,
                            yAlign: tooltipOpts.yAlign,

                            // Body
                            bodyFontColor: tooltipOpts.bodyFontColor,
                            _bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
                            _bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
                            _bodyAlign: tooltipOpts.bodyAlign,
                            bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
                            bodySpacing: tooltipOpts.bodySpacing,

                            // Title
                            titleFontColor: tooltipOpts.titleFontColor,
                            _titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
                            _titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
                            titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
                            _titleAlign: tooltipOpts.titleAlign,
                            titleSpacing: tooltipOpts.titleSpacing,
                            titleMarginBottom: tooltipOpts.titleMarginBottom,

                            // Footer
                            footerFontColor: tooltipOpts.footerFontColor,
                            _footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
                            _footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
                            footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
                            _footerAlign: tooltipOpts.footerAlign,
                            footerSpacing: tooltipOpts.footerSpacing,
                            footerMarginTop: tooltipOpts.footerMarginTop,

                            // Appearance
                            caretSize: tooltipOpts.caretSize,
                            cornerRadius: tooltipOpts.cornerRadius,
                            backgroundColor: tooltipOpts.backgroundColor,
                            opacity: 0,
                            legendColorBackground: tooltipOpts.multiKeyBackground,
                            displayColors: tooltipOpts.displayColors,
                            borderColor: tooltipOpts.borderColor,
                            borderWidth: tooltipOpts.borderWidth
                        };
                    }

                    /**
                     * Get the size of the tooltip
                     */
                    function getTooltipSize(tooltip, model) {
                        var ctx = tooltip._chart.ctx;

                        var height = model.yPadding * 2; // Tooltip Padding
                        var width = 0;

                        // Count of all lines in the body
                        var body = model.body;
                        var combinedBodyLength = body.reduce(function (count, bodyItem) {
                            return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
                        }, 0);
                        combinedBodyLength += model.beforeBody.length + model.afterBody.length;

                        var titleLineCount = model.title.length;
                        var footerLineCount = model.footer.length;
                        var titleFontSize = model.titleFontSize;
                        var bodyFontSize = model.bodyFontSize;
                        var footerFontSize = model.footerFontSize;

                        height += titleLineCount * titleFontSize; // Title Lines
                        height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
                        height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin
                        height += combinedBodyLength * bodyFontSize; // Body Lines
                        height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
                        height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
                        height += footerLineCount * (footerFontSize); // Footer Lines
                        height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing

                        // Title width
                        var widthPadding = 0;
                        var maxLineWidth = function (line) {
                            width = Math.max(width, ctx.measureText(line).width + widthPadding);
                        };

                        ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
                        helpers.each(model.title, maxLineWidth);

                        // Body width
                        ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
                        helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth);

                        // Body lines may include some extra width due to the color box
                        widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
                        helpers.each(body, function (bodyItem) {
                            helpers.each(bodyItem.before, maxLineWidth);
                            helpers.each(bodyItem.lines, maxLineWidth);
                            helpers.each(bodyItem.after, maxLineWidth);
                        });

                        // Reset back to 0
                        widthPadding = 0;

                        // Footer width
                        ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
                        helpers.each(model.footer, maxLineWidth);

                        // Add padding
                        width += 2 * model.xPadding;

                        return {
                            width: width,
                            height: height
                        };
                    }

                    /**
                     * Helper to get the alignment of a tooltip given the size
                     */
                    function determineAlignment(tooltip, size) {
                        var model = tooltip._model;
                        var chart = tooltip._chart;
                        var chartArea = tooltip._chart.chartArea;
                        var xAlign = 'center';
                        var yAlign = 'center';

                        if (model.y < size.height) {
                            yAlign = 'top';
                        } else if (model.y > (chart.height - size.height)) {
                            yAlign = 'bottom';
                        }

                        var lf, rf; // functions to determine left, right alignment
                        var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
                        var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
                        var midX = (chartArea.left + chartArea.right) / 2;
                        var midY = (chartArea.top + chartArea.bottom) / 2;

                        if (yAlign === 'center') {
                            lf = function (x) {
                                return x <= midX;
                            };
                            rf = function (x) {
                                return x > midX;
                            };
                        } else {
                            lf = function (x) {
                                return x <= (size.width / 2);
                            };
                            rf = function (x) {
                                return x >= (chart.width - (size.width / 2));
                            };
                        }

                        olf = function (x) {
                            return x + size.width + model.caretSize + model.caretPadding > chart.width;
                        };
                        orf = function (x) {
                            return x - size.width - model.caretSize - model.caretPadding < 0;
                        };
                        yf = function (y) {
                            return y <= midY ? 'top' : 'bottom';
                        };

                        if (lf(model.x)) {
                            xAlign = 'left';

                            // Is tooltip too wide and goes over the right side of the chart.?
                            if (olf(model.x)) {
                                xAlign = 'center';
                                yAlign = yf(model.y);
                            }
                        } else if (rf(model.x)) {
                            xAlign = 'right';

                            // Is tooltip too wide and goes outside left edge of canvas?
                            if (orf(model.x)) {
                                xAlign = 'center';
                                yAlign = yf(model.y);
                            }
                        }

                        var opts = tooltip._options;
                        return {
                            xAlign: opts.xAlign ? opts.xAlign : xAlign,
                            yAlign: opts.yAlign ? opts.yAlign : yAlign
                        };
                    }

                    /**
                     * @Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
                     */
                    function getBackgroundPoint(vm, size, alignment, chart) {
                        // Background Position
                        var x = vm.x;
                        var y = vm.y;

                        var caretSize = vm.caretSize;
                        var caretPadding = vm.caretPadding;
                        var cornerRadius = vm.cornerRadius;
                        var xAlign = alignment.xAlign;
                        var yAlign = alignment.yAlign;
                        var paddingAndSize = caretSize + caretPadding;
                        var radiusAndPadding = cornerRadius + caretPadding;

                        if (xAlign === 'right') {
                            x -= size.width;
                        } else if (xAlign === 'center') {
                            x -= (size.width / 2);
                            if (x + size.width > chart.width) {
                                x = chart.width - size.width;
                            }
                            if (x < 0) {
                                x = 0;
                            }
                        }

                        if (yAlign === 'top') {
                            y += paddingAndSize;
                        } else if (yAlign === 'bottom') {
                            y -= size.height + paddingAndSize;
                        } else {
                            y -= (size.height / 2);
                        }

                        if (yAlign === 'center') {
                            if (xAlign === 'left') {
                                x += paddingAndSize;
                            } else if (xAlign === 'right') {
                                x -= paddingAndSize;
                            }
                        } else if (xAlign === 'left') {
                            x -= radiusAndPadding;
                        } else if (xAlign === 'right') {
                            x += radiusAndPadding;
                        }

                        return {
                            x: x,
                            y: y
                        };
                    }

                    Chart.Tooltip = Element.extend({
                        initialize: function () {
                            this._model = getBaseModel(this._options);
                            this._lastActive = [];
                        },

                        // Get the title
                        // Args are: (tooltipItem, data)
                        getTitle: function () {
                            var me = this;
                            var opts = me._options;
                            var callbacks = opts.callbacks;

                            var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
                            var title = callbacks.title.apply(me, arguments);
                            var afterTitle = callbacks.afterTitle.apply(me, arguments);

                            var lines = [];
                            lines = pushOrConcat(lines, beforeTitle);
                            lines = pushOrConcat(lines, title);
                            lines = pushOrConcat(lines, afterTitle);

                            return lines;
                        },

                        // Args are: (tooltipItem, data)
                        getBeforeBody: function () {
                            var lines = this._options.callbacks.beforeBody.apply(this, arguments);
                            return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
                        },

                        // Args are: (tooltipItem, data)
                        getBody: function (tooltipItems, data) {
                            var me = this;
                            var callbacks = me._options.callbacks;
                            var bodyItems = [];

                            helpers.each(tooltipItems, function (tooltipItem) {
                                var bodyItem = {
                                    before: [],
                                    lines: [],
                                    after: []
                                };
                                pushOrConcat(bodyItem.before, callbacks.beforeLabel.call(me, tooltipItem, data));
                                pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
                                pushOrConcat(bodyItem.after, callbacks.afterLabel.call(me, tooltipItem, data));

                                bodyItems.push(bodyItem);
                            });

                            return bodyItems;
                        },

                        // Args are: (tooltipItem, data)
                        getAfterBody: function () {
                            var lines = this._options.callbacks.afterBody.apply(this, arguments);
                            return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
                        },

                        // Get the footer and beforeFooter and afterFooter lines
                        // Args are: (tooltipItem, data)
                        getFooter: function () {
                            var me = this;
                            var callbacks = me._options.callbacks;

                            var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
                            var footer = callbacks.footer.apply(me, arguments);
                            var afterFooter = callbacks.afterFooter.apply(me, arguments);

                            var lines = [];
                            lines = pushOrConcat(lines, beforeFooter);
                            lines = pushOrConcat(lines, footer);
                            lines = pushOrConcat(lines, afterFooter);

                            return lines;
                        },

                        update: function (changed) {
                            var me = this;
                            var opts = me._options;

                            // Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
                            // that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
                            // which breaks any animations.
                            var existingModel = me._model;
                            var model = me._model = getBaseModel(opts);
                            var active = me._active;

                            var data = me._data;

                            // In the case where active.length === 0 we need to keep these at existing values for good animations
                            var alignment = {
                                xAlign: existingModel.xAlign,
                                yAlign: existingModel.yAlign
                            };
                            var backgroundPoint = {
                                x: existingModel.x,
                                y: existingModel.y
                            };
                            var tooltipSize = {
                                width: existingModel.width,
                                height: existingModel.height
                            };
                            var tooltipPosition = {
                                x: existingModel.caretX,
                                y: existingModel.caretY
                            };

                            var i, len;

                            if (active.length) {
                                model.opacity = 1;

                                var labelColors = [];
                                var labelTextColors = [];
                                tooltipPosition = Chart.Tooltip.positioners[opts.position].call(me, active, me._eventPosition);

                                var tooltipItems = [];
                                for (i = 0, len = active.length; i < len; ++i) {
                                    tooltipItems.push(createTooltipItem(active[i]));
                                }

                                // If the user provided a filter function, use it to modify the tooltip items
                                if (opts.filter) {
                                    tooltipItems = tooltipItems.filter(function (a) {
                                        return opts.filter(a, data);
                                    });
                                }

                                // If the user provided a sorting function, use it to modify the tooltip items
                                if (opts.itemSort) {
                                    tooltipItems = tooltipItems.sort(function (a, b) {
                                        return opts.itemSort(a, b, data);
                                    });
                                }

                                // Determine colors for boxes
                                helpers.each(tooltipItems, function (tooltipItem) {
                                    labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
                                    labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
                                });


                                // Build the Text Lines
                                model.title = me.getTitle(tooltipItems, data);
                                model.beforeBody = me.getBeforeBody(tooltipItems, data);
                                model.body = me.getBody(tooltipItems, data);
                                model.afterBody = me.getAfterBody(tooltipItems, data);
                                model.footer = me.getFooter(tooltipItems, data);

                                // Initial positioning and colors
                                model.x = Math.round(tooltipPosition.x);
                                model.y = Math.round(tooltipPosition.y);
                                model.caretPadding = opts.caretPadding;
                                model.labelColors = labelColors;
                                model.labelTextColors = labelTextColors;

                                // data points
                                model.dataPoints = tooltipItems;

                                // We need to determine alignment of the tooltip
                                tooltipSize = getTooltipSize(this, model);
                                alignment = determineAlignment(this, tooltipSize);
                                // Final Size and Position
                                backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment, me._chart);
                            } else {
                                model.opacity = 0;
                            }

                            model.xAlign = alignment.xAlign;
                            model.yAlign = alignment.yAlign;
                            model.x = backgroundPoint.x;
                            model.y = backgroundPoint.y;
                            model.width = tooltipSize.width;
                            model.height = tooltipSize.height;

                            // Point where the caret on the tooltip points to
                            model.caretX = tooltipPosition.x;
                            model.caretY = tooltipPosition.y;

                            me._model = model;

                            if (changed && opts.custom) {
                                opts.custom.call(me, model);
                            }

                            return me;
                        },
                        drawCaret: function (tooltipPoint, size) {
                            var ctx = this._chart.ctx;
                            var vm = this._view;
                            var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);

                            ctx.lineTo(caretPosition.x1, caretPosition.y1);
                            ctx.lineTo(caretPosition.x2, caretPosition.y2);
                            ctx.lineTo(caretPosition.x3, caretPosition.y3);
                        },
                        getCaretPosition: function (tooltipPoint, size, vm) {
                            var x1, x2, x3, y1, y2, y3;
                            var caretSize = vm.caretSize;
                            var cornerRadius = vm.cornerRadius;
                            var xAlign = vm.xAlign;
                            var yAlign = vm.yAlign;
                            var ptX = tooltipPoint.x;
                            var ptY = tooltipPoint.y;
                            var width = size.width;
                            var height = size.height;

                            if (yAlign === 'center') {
                                y2 = ptY + (height / 2);

                                if (xAlign === 'left') {
                                    x1 = ptX;
                                    x2 = x1 - caretSize;
                                    x3 = x1;

                                    y1 = y2 + caretSize;
                                    y3 = y2 - caretSize;
                                } else {
                                    x1 = ptX + width;
                                    x2 = x1 + caretSize;
                                    x3 = x1;

                                    y1 = y2 - caretSize;
                                    y3 = y2 + caretSize;
                                }
                            } else {
                                if (xAlign === 'left') {
                                    x2 = ptX + cornerRadius + (caretSize);
                                    x1 = x2 - caretSize;
                                    x3 = x2 + caretSize;
                                } else if (xAlign === 'right') {
                                    x2 = ptX + width - cornerRadius - caretSize;
                                    x1 = x2 - caretSize;
                                    x3 = x2 + caretSize;
                                } else {
                                    x2 = vm.caretX;
                                    x1 = x2 - caretSize;
                                    x3 = x2 + caretSize;
                                }
                                if (yAlign === 'top') {
                                    y1 = ptY;
                                    y2 = y1 - caretSize;
                                    y3 = y1;
                                } else {
                                    y1 = ptY + height;
                                    y2 = y1 + caretSize;
                                    y3 = y1;
                                    // invert drawing order
                                    var tmp = x3;
                                    x3 = x1;
                                    x1 = tmp;
                                }
                            }
                            return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
                        },
                        drawTitle: function (pt, vm, ctx, opacity) {
                            var title = vm.title;

                            if (title.length) {
                                ctx.textAlign = vm._titleAlign;
                                ctx.textBaseline = 'top';

                                var titleFontSize = vm.titleFontSize;
                                var titleSpacing = vm.titleSpacing;

                                ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity);
                                ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);

                                var i, len;
                                for (i = 0, len = title.length; i < len; ++i) {
                                    ctx.fillText(title[i], pt.x, pt.y);
                                    pt.y += titleFontSize + titleSpacing; // Line Height and spacing

                                    if (i + 1 === title.length) {
                                        pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
                                    }
                                }
                            }
                        },
                        drawBody: function (pt, vm, ctx, opacity) {
                            var bodyFontSize = vm.bodyFontSize;
                            var bodySpacing = vm.bodySpacing;
                            var body = vm.body;

                            ctx.textAlign = vm._bodyAlign;
                            ctx.textBaseline = 'top';
                            ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);

                            // Before Body
                            var xLinePadding = 0;
                            var fillLineOfText = function (line) {
                                ctx.fillText(line, pt.x + xLinePadding, pt.y);
                                pt.y += bodyFontSize + bodySpacing;
                            };

                            // Before body lines
                            ctx.fillStyle = mergeOpacity(vm.bodyFontColor, opacity);
                            helpers.each(vm.beforeBody, fillLineOfText);

                            var drawColorBoxes = vm.displayColors;
                            xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;

                            // Draw body lines now
                            helpers.each(body, function (bodyItem, i) {
                                var textColor = mergeOpacity(vm.labelTextColors[i], opacity);
                                ctx.fillStyle = textColor;
                                helpers.each(bodyItem.before, fillLineOfText);

                                helpers.each(bodyItem.lines, function (line) {
                                    // Draw Legend-like boxes if needed
                                    if (drawColorBoxes) {
                                        // Fill a white rect so that colours merge nicely if the opacity is < 1
                                        ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity);
                                        ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

                                        // Border
                                        ctx.lineWidth = 1;
                                        ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity);
                                        ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

                                        // Inner square
                                        ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity);
                                        ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
                                        ctx.fillStyle = textColor;
                                    }

                                    fillLineOfText(line);
                                });

                                helpers.each(bodyItem.after, fillLineOfText);
                            });

                            // Reset back to 0 for after body
                            xLinePadding = 0;

                            // After body lines
                            helpers.each(vm.afterBody, fillLineOfText);
                            pt.y -= bodySpacing; // Remove last body spacing
                        },
                        drawFooter: function (pt, vm, ctx, opacity) {
                            var footer = vm.footer;

                            if (footer.length) {
                                pt.y += vm.footerMarginTop;

                                ctx.textAlign = vm._footerAlign;
                                ctx.textBaseline = 'top';

                                ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity);
                                ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);

                                helpers.each(footer, function (line) {
                                    ctx.fillText(line, pt.x, pt.y);
                                    pt.y += vm.footerFontSize + vm.footerSpacing;
                                });
                            }
                        },
                        drawBackground: function (pt, vm, ctx, tooltipSize, opacity) {
                            ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity);
                            ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity);
                            ctx.lineWidth = vm.borderWidth;
                            var xAlign = vm.xAlign;
                            var yAlign = vm.yAlign;
                            var x = pt.x;
                            var y = pt.y;
                            var width = tooltipSize.width;
                            var height = tooltipSize.height;
                            var radius = vm.cornerRadius;

                            ctx.beginPath();
                            ctx.moveTo(x + radius, y);
                            if (yAlign === 'top') {
                                this.drawCaret(pt, tooltipSize);
                            }
                            ctx.lineTo(x + width - radius, y);
                            ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
                            if (yAlign === 'center' && xAlign === 'right') {
                                this.drawCaret(pt, tooltipSize);
                            }
                            ctx.lineTo(x + width, y + height - radius);
                            ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
                            if (yAlign === 'bottom') {
                                this.drawCaret(pt, tooltipSize);
                            }
                            ctx.lineTo(x + radius, y + height);
                            ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
                            if (yAlign === 'center' && xAlign === 'left') {
                                this.drawCaret(pt, tooltipSize);
                            }
                            ctx.lineTo(x, y + radius);
                            ctx.quadraticCurveTo(x, y, x + radius, y);
                            ctx.closePath();

                            ctx.fill();

                            if (vm.borderWidth > 0) {
                                ctx.stroke();
                            }
                        },
                        draw: function () {
                            var ctx = this._chart.ctx;
                            var vm = this._view;

                            if (vm.opacity === 0) {
                                return;
                            }

                            var tooltipSize = {
                                width: vm.width,
                                height: vm.height
                            };
                            var pt = {
                                x: vm.x,
                                y: vm.y
                            };

                            // IE11/Edge does not like very small opacities, so snap to 0
                            var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;

                            // Truthy/falsey value for empty tooltip
                            var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;

                            if (this._options.enabled && hasTooltipContent) {
                                // Draw Background
                                this.drawBackground(pt, vm, ctx, tooltipSize, opacity);

                                // Draw Title, Body, and Footer
                                pt.x += vm.xPadding;
                                pt.y += vm.yPadding;

                                // Titles
                                this.drawTitle(pt, vm, ctx, opacity);

                                // Body
                                this.drawBody(pt, vm, ctx, opacity);

                                // Footer
                                this.drawFooter(pt, vm, ctx, opacity);
                            }
                        },

                        /**
                         * Handle an event
                         * @private
                         * @param {IEvent} event - The event to handle
                         * @returns {Boolean} true if the tooltip changed
                         */
                        handleEvent: function (e) {
                            var me = this;
                            var options = me._options;
                            var changed = false;

                            me._lastActive = me._lastActive || [];

                            // Find Active Elements for tooltips
                            if (e.type === 'mouseout') {
                                me._active = [];
                            } else {
                                me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
                            }

                            // Remember Last Actives
                            changed = !helpers.arrayEquals(me._active, me._lastActive);

                            // Only handle target event on tooltip change
                            if (changed) {
                                me._lastActive = me._active;

                                if (options.enabled || options.custom) {
                                    me._eventPosition = {
                                        x: e.x,
                                        y: e.y
                                    };

                                    me.update(true);
                                    me.pivot();
                                }
                            }

                            return changed;
                        }
                    });

                    /**
                     * @namespace Chart.Tooltip.positioners
                     */
                    Chart.Tooltip.positioners = {
                        /**
                         * Average mode places the tooltip at the average position of the elements shown
                         * @function Chart.Tooltip.positioners.average
                         * @param elements {ChartElement[]} the elements being displayed in the tooltip
                         * @returns {Point} tooltip position
                         */
                        average: function (elements) {
                            if (!elements.length) {
                                return false;
                            }

                            var i, len;
                            var x = 0;
                            var y = 0;
                            var count = 0;

                            for (i = 0, len = elements.length; i < len; ++i) {
                                var el = elements[i];
                                if (el && el.hasValue()) {
                                    var pos = el.tooltipPosition();
                                    x += pos.x;
                                    y += pos.y;
                                    ++count;
                                }
                            }

                            return {
                                x: Math.round(x / count),
                                y: Math.round(y / count)
                            };
                        },

                        /**
                         * Gets the tooltip position nearest of the item nearest to the event position
                         * @function Chart.Tooltip.positioners.nearest
                         * @param elements {Chart.Element[]} the tooltip elements
                         * @param eventPosition {Point} the position of the event in canvas coordinates
                         * @returns {Point} the tooltip position
                         */
                        nearest: function (elements, eventPosition) {
                            var x = eventPosition.x;
                            var y = eventPosition.y;
                            var minDistance = Number.POSITIVE_INFINITY;
                            var i, len, nearestElement;

                            for (i = 0, len = elements.length; i < len; ++i) {
                                var el = elements[i];
                                if (el && el.hasValue()) {
                                    var center = el.getCenterPoint();
                                    var d = helpers.distanceBetweenPoints(eventPosition, center);

                                    if (d < minDistance) {
                                        minDistance = d;
                                        nearestElement = el;
                                    }
                                }
                            }

                            if (nearestElement) {
                                var tp = nearestElement.tooltipPosition();
                                x = tp.x;
                                y = tp.y;
                            }

                            return {
                                x: x,
                                y: y
                            };
                        }
                    };
                };

            }, {"25": 25, "26": 26, "45": 45}], 36: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);

                defaults._set('global', {
                    elements: {
                        arc: {
                            backgroundColor: defaults.global.defaultColor,
                            borderColor: '#fff',
                            borderWidth: 2
                        }
                    }
                });

                module.exports = Element.extend({
                    inLabelRange: function (mouseX) {
                        var vm = this._view;

                        if (vm) {
                            return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
                        }
                        return false;
                    },

                    inRange: function (chartX, chartY) {
                        var vm = this._view;

                        if (vm) {
                            var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY});
                            var angle = pointRelativePosition.angle;
                            var distance = pointRelativePosition.distance;

                            // Sanitise angle range
                            var startAngle = vm.startAngle;
                            var endAngle = vm.endAngle;
                            while (endAngle < startAngle) {
                                endAngle += 2.0 * Math.PI;
                            }
                            while (angle > endAngle) {
                                angle -= 2.0 * Math.PI;
                            }
                            while (angle < startAngle) {
                                angle += 2.0 * Math.PI;
                            }

                            // Check if within the range of the open/close angle
                            var betweenAngles = (angle >= startAngle && angle <= endAngle);
                            var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);

                            return (betweenAngles && withinRadius);
                        }
                        return false;
                    },

                    getCenterPoint: function () {
                        var vm = this._view;
                        var halfAngle = (vm.startAngle + vm.endAngle) / 2;
                        var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
                        return {
                            x: vm.x + Math.cos(halfAngle) * halfRadius,
                            y: vm.y + Math.sin(halfAngle) * halfRadius
                        };
                    },

                    getArea: function () {
                        var vm = this._view;
                        return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
                    },

                    tooltipPosition: function () {
                        var vm = this._view;
                        var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
                        var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;

                        return {
                            x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
                            y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
                        };
                    },

                    draw: function () {
                        var ctx = this._chart.ctx;
                        var vm = this._view;
                        var sA = vm.startAngle;
                        var eA = vm.endAngle;

                        ctx.beginPath();

                        ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
                        ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);

                        ctx.closePath();
                        ctx.strokeStyle = vm.borderColor;
                        ctx.lineWidth = vm.borderWidth;

                        ctx.fillStyle = vm.backgroundColor;

                        ctx.fill();
                        ctx.lineJoin = 'bevel';

                        if (vm.borderWidth) {
                            ctx.stroke();
                        }
                    }
                });

            }, {"25": 25, "26": 26, "45": 45}], 37: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);

                var globalDefaults = defaults.global;

                defaults._set('global', {
                    elements: {
                        line: {
                            tension: 0.4,
                            backgroundColor: globalDefaults.defaultColor,
                            borderWidth: 3,
                            borderColor: globalDefaults.defaultColor,
                            borderCapStyle: 'butt',
                            borderDash: [],
                            borderDashOffset: 0.0,
                            borderJoinStyle: 'miter',
                            capBezierPoints: true,
                            fill: true, // do we fill in the area between the line and its base axis
                        }
                    }
                });

                module.exports = Element.extend({
                    draw: function () {
                        var me = this;
                        var vm = me._view;
                        var ctx = me._chart.ctx;
                        var spanGaps = vm.spanGaps;
                        var points = me._children.slice(); // clone array
                        var globalOptionLineElements = globalDefaults.elements.line;
                        var lastDrawnIndex = -1;
                        var index, current, previous, currentVM;

                        // If we are looping, adding the first point again
                        if (me._loop && points.length) {
                            points.push(points[0]);
                        }

                        ctx.save();

                        // Stroke Line Options
                        ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;

                        // IE 9 and 10 do not support line dash
                        if (ctx.setLineDash) {
                            ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
                        }

                        ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
                        ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
                        ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
                        ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;

                        // Stroke Line
                        ctx.beginPath();
                        lastDrawnIndex = -1;

                        for (index = 0; index < points.length; ++index) {
                            current = points[index];
                            previous = helpers.previousItem(points, index);
                            currentVM = current._view;

                            // First point moves to it's starting position no matter what
                            if (index === 0) {
                                if (!currentVM.skip) {
                                    ctx.moveTo(currentVM.x, currentVM.y);
                                    lastDrawnIndex = index;
                                }
                            } else {
                                previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];

                                if (!currentVM.skip) {
                                    if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
                                        // There was a gap and this is the first point after the gap
                                        ctx.moveTo(currentVM.x, currentVM.y);
                                    } else {
                                        // Line to next point
                                        helpers.canvas.lineTo(ctx, previous._view, current._view);
                                    }
                                    lastDrawnIndex = index;
                                }
                            }
                        }

                        ctx.stroke();
                        ctx.restore();
                    }
                });

            }, {"25": 25, "26": 26, "45": 45}], 38: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);

                var defaultColor = defaults.global.defaultColor;

                defaults._set('global', {
                    elements: {
                        point: {
                            radius: 3,
                            pointStyle: 'circle',
                            backgroundColor: defaultColor,
                            borderColor: defaultColor,
                            borderWidth: 1,
                            // Hover
                            hitRadius: 1,
                            hoverRadius: 4,
                            hoverBorderWidth: 1
                        }
                    }
                });

                function xRange(mouseX) {
                    var vm = this._view;
                    return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
                }

                function yRange(mouseY) {
                    var vm = this._view;
                    return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
                }

                module.exports = Element.extend({
                    inRange: function (mouseX, mouseY) {
                        var vm = this._view;
                        return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
                    },

                    inLabelRange: xRange,
                    inXRange: xRange,
                    inYRange: yRange,

                    getCenterPoint: function () {
                        var vm = this._view;
                        return {
                            x: vm.x,
                            y: vm.y
                        };
                    },

                    getArea: function () {
                        return Math.PI * Math.pow(this._view.radius, 2);
                    },

                    tooltipPosition: function () {
                        var vm = this._view;
                        return {
                            x: vm.x,
                            y: vm.y,
                            padding: vm.radius + vm.borderWidth
                        };
                    },

                    draw: function (chartArea) {
                        var vm = this._view;
                        var model = this._model;
                        var ctx = this._chart.ctx;
                        var pointStyle = vm.pointStyle;
                        var radius = vm.radius;
                        var x = vm.x;
                        var y = vm.y;
                        var color = helpers.color;
                        var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.)
                        var ratio = 0;

                        if (vm.skip) {
                            return;
                        }

                        ctx.strokeStyle = vm.borderColor || defaultColor;
                        ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth);
                        ctx.fillStyle = vm.backgroundColor || defaultColor;

                        // Cliping for Points.
                        // going out from inner charArea?
                        if ((chartArea !== undefined) && ((model.x < chartArea.left) || (chartArea.right * errMargin < model.x) || (model.y < chartArea.top) || (chartArea.bottom * errMargin < model.y))) {
                            // Point fade out
                            if (model.x < chartArea.left) {
                                ratio = (x - model.x) / (chartArea.left - model.x);
                            } else if (chartArea.right * errMargin < model.x) {
                                ratio = (model.x - x) / (model.x - chartArea.right);
                            } else if (model.y < chartArea.top) {
                                ratio = (y - model.y) / (chartArea.top - model.y);
                            } else if (chartArea.bottom * errMargin < model.y) {
                                ratio = (model.y - y) / (model.y - chartArea.bottom);
                            }
                            ratio = Math.round(ratio * 100) / 100;
                            ctx.strokeStyle = color(ctx.strokeStyle).alpha(ratio).rgbString();
                            ctx.fillStyle = color(ctx.fillStyle).alpha(ratio).rgbString();
                        }

                        helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y);
                    }
                });

            }, {"25": 25, "26": 26, "45": 45}], 39: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);

                defaults._set('global', {
                    elements: {
                        rectangle: {
                            backgroundColor: defaults.global.defaultColor,
                            borderColor: defaults.global.defaultColor,
                            borderSkipped: 'bottom',
                            borderWidth: 0
                        }
                    }
                });

                function isVertical(bar) {
                    return bar._view.width !== undefined;
                }

                /**
                 * Helper function to get the bounds of the bar regardless of the orientation
                 * @param bar {Chart.Element.Rectangle} the bar
                 * @return {Bounds} bounds of the bar
                 * @private
                 */
                function getBarBounds(bar) {
                    var vm = bar._view;
                    var x1, x2, y1, y2;

                    if (isVertical(bar)) {
                        // vertical
                        var halfWidth = vm.width / 2;
                        x1 = vm.x - halfWidth;
                        x2 = vm.x + halfWidth;
                        y1 = Math.min(vm.y, vm.base);
                        y2 = Math.max(vm.y, vm.base);
                    } else {
                        // horizontal bar
                        var halfHeight = vm.height / 2;
                        x1 = Math.min(vm.x, vm.base);
                        x2 = Math.max(vm.x, vm.base);
                        y1 = vm.y - halfHeight;
                        y2 = vm.y + halfHeight;
                    }

                    return {
                        left: x1,
                        top: y1,
                        right: x2,
                        bottom: y2
                    };
                }

                module.exports = Element.extend({
                    draw: function () {
                        var ctx = this._chart.ctx;
                        var vm = this._view;
                        var left, right, top, bottom, signX, signY, borderSkipped;
                        var borderWidth = vm.borderWidth;

                        if (!vm.horizontal) {
                            // bar
                            left = vm.x - vm.width / 2;
                            right = vm.x + vm.width / 2;
                            top = vm.y;
                            bottom = vm.base;
                            signX = 1;
                            signY = bottom > top ? 1 : -1;
                            borderSkipped = vm.borderSkipped || 'bottom';
                        } else {
                            // horizontal bar
                            left = vm.base;
                            right = vm.x;
                            top = vm.y - vm.height / 2;
                            bottom = vm.y + vm.height / 2;
                            signX = right > left ? 1 : -1;
                            signY = 1;
                            borderSkipped = vm.borderSkipped || 'left';
                        }

                        // Canvas doesn't allow us to stroke inside the width so we can
                        // adjust the sizes to fit if we're setting a stroke on the line
                        if (borderWidth) {
                            // borderWidth shold be less than bar width and bar height.
                            var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom));
                            borderWidth = borderWidth > barSize ? barSize : borderWidth;
                            var halfStroke = borderWidth / 2;
                            // Adjust borderWidth when bar top position is near vm.base(zero).
                            var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0);
                            var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0);
                            var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0);
                            var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0);
                            // not become a vertical line?
                            if (borderLeft !== borderRight) {
                                top = borderTop;
                                bottom = borderBottom;
                            }
                            // not become a horizontal line?
                            if (borderTop !== borderBottom) {
                                left = borderLeft;
                                right = borderRight;
                            }
                        }

                        ctx.beginPath();
                        ctx.fillStyle = vm.backgroundColor;
                        ctx.strokeStyle = vm.borderColor;
                        ctx.lineWidth = borderWidth;

                        // Corner points, from bottom-left to bottom-right clockwise
                        // | 1 2 |
                        // | 0 3 |
                        var corners = [
                            [left, bottom],
                            [left, top],
                            [right, top],
                            [right, bottom]
                        ];

                        // Find first (starting) corner with fallback to 'bottom'
                        var borders = ['bottom', 'left', 'top', 'right'];
                        var startCorner = borders.indexOf(borderSkipped, 0);
                        if (startCorner === -1) {
                            startCorner = 0;
                        }

                        function cornerAt(index) {
                            return corners[(startCorner + index) % 4];
                        }

                        // Draw rectangle from 'startCorner'
                        var corner = cornerAt(0);
                        ctx.moveTo(corner[0], corner[1]);

                        for (var i = 1; i < 4; i++) {
                            corner = cornerAt(i);
                            ctx.lineTo(corner[0], corner[1]);
                        }

                        ctx.fill();
                        if (borderWidth) {
                            ctx.stroke();
                        }
                    },

                    height: function () {
                        var vm = this._view;
                        return vm.base - vm.y;
                    },

                    inRange: function (mouseX, mouseY) {
                        var inRange = false;

                        if (this._view) {
                            var bounds = getBarBounds(this);
                            inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
                        }

                        return inRange;
                    },

                    inLabelRange: function (mouseX, mouseY) {
                        var me = this;
                        if (!me._view) {
                            return false;
                        }

                        var inRange = false;
                        var bounds = getBarBounds(me);

                        if (isVertical(me)) {
                            inRange = mouseX >= bounds.left && mouseX <= bounds.right;
                        } else {
                            inRange = mouseY >= bounds.top && mouseY <= bounds.bottom;
                        }

                        return inRange;
                    },

                    inXRange: function (mouseX) {
                        var bounds = getBarBounds(this);
                        return mouseX >= bounds.left && mouseX <= bounds.right;
                    },

                    inYRange: function (mouseY) {
                        var bounds = getBarBounds(this);
                        return mouseY >= bounds.top && mouseY <= bounds.bottom;
                    },

                    getCenterPoint: function () {
                        var vm = this._view;
                        var x, y;
                        if (isVertical(this)) {
                            x = vm.x;
                            y = (vm.y + vm.base) / 2;
                        } else {
                            x = (vm.x + vm.base) / 2;
                            y = vm.y;
                        }

                        return {x: x, y: y};
                    },

                    getArea: function () {
                        var vm = this._view;
                        return vm.width * Math.abs(vm.y - vm.base);
                    },

                    tooltipPosition: function () {
                        var vm = this._view;
                        return {
                            x: vm.x,
                            y: vm.y
                        };
                    }
                });

            }, {"25": 25, "26": 26}], 40: [function (require, module, exports) {
                'use strict';

                module.exports = {};
                module.exports.Arc = require(36);
                module.exports.Line = require(37);
                module.exports.Point = require(38);
                module.exports.Rectangle = require(39);

            }, {"36": 36, "37": 37, "38": 38, "39": 39}], 41: [function (require, module, exports) {
                'use strict';

                var helpers = require(42);

                /**
                 * @namespace Chart.helpers.canvas
                 */
                var exports = module.exports = {
                    /**
                     * Clears the entire canvas associated to the given `chart`.
                     * @param {Chart} chart - The chart for which to clear the canvas.
                     */
                    clear: function (chart) {
                        chart.ctx.clearRect(0, 0, chart.width, chart.height);
                    },

                    /**
                     * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
                     * given size (width, height) and the same `radius` for all corners.
                     * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
                     * @param {Number} x - The x axis of the coordinate for the rectangle starting point.
                     * @param {Number} y - The y axis of the coordinate for the rectangle starting point.
                     * @param {Number} width - The rectangle's width.
                     * @param {Number} height - The rectangle's height.
                     * @param {Number} radius - The rounded amount (in pixels) for the four corners.
                     * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
                     */
                    roundedRect: function (ctx, x, y, width, height, radius) {
                        if (radius) {
                            var rx = Math.min(radius, width / 2);
                            var ry = Math.min(radius, height / 2);

                            ctx.moveTo(x + rx, y);
                            ctx.lineTo(x + width - rx, y);
                            ctx.quadraticCurveTo(x + width, y, x + width, y + ry);
                            ctx.lineTo(x + width, y + height - ry);
                            ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height);
                            ctx.lineTo(x + rx, y + height);
                            ctx.quadraticCurveTo(x, y + height, x, y + height - ry);
                            ctx.lineTo(x, y + ry);
                            ctx.quadraticCurveTo(x, y, x + rx, y);
                        } else {
                            ctx.rect(x, y, width, height);
                        }
                    },

                    drawPoint: function (ctx, style, radius, x, y) {
                        var type, edgeLength, xOffset, yOffset, height, size;

                        if (style && typeof style === 'object') {
                            type = style.toString();
                            if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
                                ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
                                return;
                            }
                        }

                        if (isNaN(radius) || radius <= 0) {
                            return;
                        }

                        switch (style) {
                            // Default includes circle
                            default:
                                ctx.beginPath();
                                ctx.arc(x, y, radius, 0, Math.PI * 2);
                                ctx.closePath();
                                ctx.fill();
                                break;
                            case 'triangle':
                                ctx.beginPath();
                                edgeLength = 3 * radius / Math.sqrt(3);
                                height = edgeLength * Math.sqrt(3) / 2;
                                ctx.moveTo(x - edgeLength / 2, y + height / 3);
                                ctx.lineTo(x + edgeLength / 2, y + height / 3);
                                ctx.lineTo(x, y - 2 * height / 3);
                                ctx.closePath();
                                ctx.fill();
                                break;
                            case 'rect':
                                size = 1 / Math.SQRT2 * radius;
                                ctx.beginPath();
                                ctx.fillRect(x - size, y - size, 2 * size, 2 * size);
                                ctx.strokeRect(x - size, y - size, 2 * size, 2 * size);
                                break;
                            case 'rectRounded':
                                var offset = radius / Math.SQRT2;
                                var leftX = x - offset;
                                var topY = y - offset;
                                var sideSize = Math.SQRT2 * radius;
                                ctx.beginPath();
                                this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius / 2);
                                ctx.closePath();
                                ctx.fill();
                                break;
                            case 'rectRot':
                                size = 1 / Math.SQRT2 * radius;
                                ctx.beginPath();
                                ctx.moveTo(x - size, y);
                                ctx.lineTo(x, y + size);
                                ctx.lineTo(x + size, y);
                                ctx.lineTo(x, y - size);
                                ctx.closePath();
                                ctx.fill();
                                break;
                            case 'cross':
                                ctx.beginPath();
                                ctx.moveTo(x, y + radius);
                                ctx.lineTo(x, y - radius);
                                ctx.moveTo(x - radius, y);
                                ctx.lineTo(x + radius, y);
                                ctx.closePath();
                                break;
                            case 'crossRot':
                                ctx.beginPath();
                                xOffset = Math.cos(Math.PI / 4) * radius;
                                yOffset = Math.sin(Math.PI / 4) * radius;
                                ctx.moveTo(x - xOffset, y - yOffset);
                                ctx.lineTo(x + xOffset, y + yOffset);
                                ctx.moveTo(x - xOffset, y + yOffset);
                                ctx.lineTo(x + xOffset, y - yOffset);
                                ctx.closePath();
                                break;
                            case 'star':
                                ctx.beginPath();
                                ctx.moveTo(x, y + radius);
                                ctx.lineTo(x, y - radius);
                                ctx.moveTo(x - radius, y);
                                ctx.lineTo(x + radius, y);
                                xOffset = Math.cos(Math.PI / 4) * radius;
                                yOffset = Math.sin(Math.PI / 4) * radius;
                                ctx.moveTo(x - xOffset, y - yOffset);
                                ctx.lineTo(x + xOffset, y + yOffset);
                                ctx.moveTo(x - xOffset, y + yOffset);
                                ctx.lineTo(x + xOffset, y - yOffset);
                                ctx.closePath();
                                break;
                            case 'line':
                                ctx.beginPath();
                                ctx.moveTo(x - radius, y);
                                ctx.lineTo(x + radius, y);
                                ctx.closePath();
                                break;
                            case 'dash':
                                ctx.beginPath();
                                ctx.moveTo(x, y);
                                ctx.lineTo(x + radius, y);
                                ctx.closePath();
                                break;
                        }

                        ctx.stroke();
                    },

                    clipArea: function (ctx, area) {
                        ctx.save();
                        ctx.beginPath();
                        ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
                        ctx.clip();
                    },

                    unclipArea: function (ctx) {
                        ctx.restore();
                    },

                    lineTo: function (ctx, previous, target, flip) {
                        if (target.steppedLine) {
                            if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) {
                                ctx.lineTo(previous.x, target.y);
                            } else {
                                ctx.lineTo(target.x, previous.y);
                            }
                            ctx.lineTo(target.x, target.y);
                            return;
                        }

                        if (!target.tension) {
                            ctx.lineTo(target.x, target.y);
                            return;
                        }

                        ctx.bezierCurveTo(
                                flip ? previous.controlPointPreviousX : previous.controlPointNextX,
                                flip ? previous.controlPointPreviousY : previous.controlPointNextY,
                                flip ? target.controlPointNextX : target.controlPointPreviousX,
                                flip ? target.controlPointNextY : target.controlPointPreviousY,
                                target.x,
                                target.y);
                    }
                };

// DEPRECATIONS

                /**
                 * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
                 * @namespace Chart.helpers.clear
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.clear = exports.clear;

                /**
                 * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
                 * @namespace Chart.helpers.drawRoundedRectangle
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.drawRoundedRectangle = function (ctx) {
                    ctx.beginPath();
                    exports.roundedRect.apply(exports, arguments);
                    ctx.closePath();
                };

            }, {"42": 42}], 42: [function (require, module, exports) {
                'use strict';

                /**
                 * @namespace Chart.helpers
                 */
                var helpers = {
                    /**
                     * An empty function that can be used, for example, for optional callback.
                     */
                    noop: function () {},

                    /**
                     * Returns a unique id, sequentially generated from a global variable.
                     * @returns {Number}
                     * @function
                     */
                    uid: (function () {
                        var id = 0;
                        return function () {
                            return id++;
                        };
                    }()),

                    /**
                     * Returns true if `value` is neither null nor undefined, else returns false.
                     * @param {*} value - The value to test.
                     * @returns {Boolean}
                     * @since 2.7.0
                     */
                    isNullOrUndef: function (value) {
                        return value === null || typeof value === 'undefined';
                    },

                    /**
                     * Returns true if `value` is an array, else returns false.
                     * @param {*} value - The value to test.
                     * @returns {Boolean}
                     * @function
                     */
                    isArray: Array.isArray ? Array.isArray : function (value) {
                        return Object.prototype.toString.call(value) === '[object Array]';
                    },

                    /**
                     * Returns true if `value` is an object (excluding null), else returns false.
                     * @param {*} value - The value to test.
                     * @returns {Boolean}
                     * @since 2.7.0
                     */
                    isObject: function (value) {
                        return value !== null && Object.prototype.toString.call(value) === '[object Object]';
                    },

                    /**
                     * Returns `value` if defined, else returns `defaultValue`.
                     * @param {*} value - The value to return if defined.
                     * @param {*} defaultValue - The value to return if `value` is undefined.
                     * @returns {*}
                     */
                    valueOrDefault: function (value, defaultValue) {
                        return typeof value === 'undefined' ? defaultValue : value;
                    },

                    /**
                     * Returns value at the given `index` in array if defined, else returns `defaultValue`.
                     * @param {Array} value - The array to lookup for value at `index`.
                     * @param {Number} index - The index in `value` to lookup for value.
                     * @param {*} defaultValue - The value to return if `value[index]` is undefined.
                     * @returns {*}
                     */
                    valueAtIndexOrDefault: function (value, index, defaultValue) {
                        return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
                    },

                    /**
                     * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
                     * value returned by `fn`. If `fn` is not a function, this method returns undefined.
                     * @param {Function} fn - The function to call.
                     * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
                     * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
                     * @returns {*}
                     */
                    callback: function (fn, args, thisArg) {
                        if (fn && typeof fn.call === 'function') {
                            return fn.apply(thisArg, args);
                        }
                    },

                    /**
                     * Note(SB) for performance sake, this method should only be used when loopable type
                     * is unknown or in none intensive code (not called often and small loopable). Else
                     * it's preferable to use a regular for() loop and save extra function calls.
                     * @param {Object|Array} loopable - The object or array to be iterated.
                     * @param {Function} fn - The function to call for each item.
                     * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
                     * @param {Boolean} [reverse] - If true, iterates backward on the loopable.
                     */
                    each: function (loopable, fn, thisArg, reverse) {
                        var i, len, keys;
                        if (helpers.isArray(loopable)) {
                            len = loopable.length;
                            if (reverse) {
                                for (i = len - 1; i >= 0; i--) {
                                    fn.call(thisArg, loopable[i], i);
                                }
                            } else {
                                for (i = 0; i < len; i++) {
                                    fn.call(thisArg, loopable[i], i);
                                }
                            }
                        } else if (helpers.isObject(loopable)) {
                            keys = Object.keys(loopable);
                            len = keys.length;
                            for (i = 0; i < len; i++) {
                                fn.call(thisArg, loopable[keys[i]], keys[i]);
                            }
                        }
                    },

                    /**
                     * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
                     * @see http://stackoverflow.com/a/14853974
                     * @param {Array} a0 - The array to compare
                     * @param {Array} a1 - The array to compare
                     * @returns {Boolean}
                     */
                    arrayEquals: function (a0, a1) {
                        var i, ilen, v0, v1;

                        if (!a0 || !a1 || a0.length !== a1.length) {
                            return false;
                        }

                        for (i = 0, ilen = a0.length; i < ilen; ++i) {
                            v0 = a0[i];
                            v1 = a1[i];

                            if (v0 instanceof Array && v1 instanceof Array) {
                                if (!helpers.arrayEquals(v0, v1)) {
                                    return false;
                                }
                            } else if (v0 !== v1) {
                                // NOTE: two different object instances will never be equal: {x:20} != {x:20}
                                return false;
                            }
                        }

                        return true;
                    },

                    /**
                     * Returns a deep copy of `source` without keeping references on objects and arrays.
                     * @param {*} source - The value to clone.
                     * @returns {*}
                     */
                    clone: function (source) {
                        if (helpers.isArray(source)) {
                            return source.map(helpers.clone);
                        }

                        if (helpers.isObject(source)) {
                            var target = {};
                            var keys = Object.keys(source);
                            var klen = keys.length;
                            var k = 0;

                            for (; k < klen; ++k) {
                                target[keys[k]] = helpers.clone(source[keys[k]]);
                            }

                            return target;
                        }

                        return source;
                    },

                    /**
                     * The default merger when Chart.helpers.merge is called without merger option.
                     * Note(SB): this method is also used by configMerge and scaleMerge as fallback.
                     * @private
                     */
                    _merger: function (key, target, source, options) {
                        var tval = target[key];
                        var sval = source[key];

                        if (helpers.isObject(tval) && helpers.isObject(sval)) {
                            helpers.merge(tval, sval, options);
                        } else {
                            target[key] = helpers.clone(sval);
                        }
                    },

                    /**
                     * Merges source[key] in target[key] only if target[key] is undefined.
                     * @private
                     */
                    _mergerIf: function (key, target, source) {
                        var tval = target[key];
                        var sval = source[key];

                        if (helpers.isObject(tval) && helpers.isObject(sval)) {
                            helpers.mergeIf(tval, sval);
                        } else if (!target.hasOwnProperty(key)) {
                            target[key] = helpers.clone(sval);
                        }
                    },

                    /**
                     * Recursively deep copies `source` properties into `target` with the given `options`.
                     * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
                     * @param {Object} target - The target object in which all sources are merged into.
                     * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
                     * @param {Object} [options] - Merging options:
                     * @param {Function} [options.merger] - The merge method (key, target, source, options)
                     * @returns {Object} The `target` object.
                     */
                    merge: function (target, source, options) {
                        var sources = helpers.isArray(source) ? source : [source];
                        var ilen = sources.length;
                        var merge, i, keys, klen, k;

                        if (!helpers.isObject(target)) {
                            return target;
                        }

                        options = options || {};
                        merge = options.merger || helpers._merger;

                        for (i = 0; i < ilen; ++i) {
                            source = sources[i];
                            if (!helpers.isObject(source)) {
                                continue;
                            }

                            keys = Object.keys(source);
                            for (k = 0, klen = keys.length; k < klen; ++k) {
                                merge(keys[k], target, source, options);
                            }
                        }

                        return target;
                    },

                    /**
                     * Recursively deep copies `source` properties into `target` *only* if not defined in target.
                     * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
                     * @param {Object} target - The target object in which all sources are merged into.
                     * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
                     * @returns {Object} The `target` object.
                     */
                    mergeIf: function (target, source) {
                        return helpers.merge(target, source, {merger: helpers._mergerIf});
                    },

                    /**
                     * Applies the contents of two or more objects together into the first object.
                     * @param {Object} target - The target object in which all objects are merged into.
                     * @param {Object} arg1 - Object containing additional properties to merge in target.
                     * @param {Object} argN - Additional objects containing properties to merge in target.
                     * @returns {Object} The `target` object.
                     */
                    extend: function (target) {
                        var setFn = function (value, key) {
                            target[key] = value;
                        };
                        for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
                            helpers.each(arguments[i], setFn);
                        }
                        return target;
                    },

                    /**
                     * Basic javascript inheritance based on the model created in Backbone.js
                     */
                    inherits: function (extensions) {
                        var me = this;
                        var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function () {
                            return me.apply(this, arguments);
                        };

                        var Surrogate = function () {
                            this.constructor = ChartElement;
                        };

                        Surrogate.prototype = me.prototype;
                        ChartElement.prototype = new Surrogate();
                        ChartElement.extend = helpers.inherits;

                        if (extensions) {
                            helpers.extend(ChartElement.prototype, extensions);
                        }

                        ChartElement.__super__ = me.prototype;
                        return ChartElement;
                    }
                };

                module.exports = helpers;

// DEPRECATIONS

                /**
                 * Provided for backward compatibility, use Chart.helpers.callback instead.
                 * @function Chart.helpers.callCallback
                 * @deprecated since version 2.6.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.callCallback = helpers.callback;

                /**
                 * Provided for backward compatibility, use Array.prototype.indexOf instead.
                 * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
                 * @function Chart.helpers.indexOf
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.indexOf = function (array, item, fromIndex) {
                    return Array.prototype.indexOf.call(array, item, fromIndex);
                };

                /**
                 * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
                 * @function Chart.helpers.getValueOrDefault
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.getValueOrDefault = helpers.valueOrDefault;

                /**
                 * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
                 * @function Chart.helpers.getValueAtIndexOrDefault
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

            }, {}], 43: [function (require, module, exports) {
                'use strict';

                var helpers = require(42);

                /**
                 * Easing functions adapted from Robert Penner's easing equations.
                 * @namespace Chart.helpers.easingEffects
                 * @see http://www.robertpenner.com/easing/
                 */
                var effects = {
                    linear: function (t) {
                        return t;
                    },

                    easeInQuad: function (t) {
                        return t * t;
                    },

                    easeOutQuad: function (t) {
                        return -t * (t - 2);
                    },

                    easeInOutQuad: function (t) {
                        if ((t /= 0.5) < 1) {
                            return 0.5 * t * t;
                        }
                        return -0.5 * ((--t) * (t - 2) - 1);
                    },

                    easeInCubic: function (t) {
                        return t * t * t;
                    },

                    easeOutCubic: function (t) {
                        return (t = t - 1) * t * t + 1;
                    },

                    easeInOutCubic: function (t) {
                        if ((t /= 0.5) < 1) {
                            return 0.5 * t * t * t;
                        }
                        return 0.5 * ((t -= 2) * t * t + 2);
                    },

                    easeInQuart: function (t) {
                        return t * t * t * t;
                    },

                    easeOutQuart: function (t) {
                        return -((t = t - 1) * t * t * t - 1);
                    },

                    easeInOutQuart: function (t) {
                        if ((t /= 0.5) < 1) {
                            return 0.5 * t * t * t * t;
                        }
                        return -0.5 * ((t -= 2) * t * t * t - 2);
                    },

                    easeInQuint: function (t) {
                        return t * t * t * t * t;
                    },

                    easeOutQuint: function (t) {
                        return (t = t - 1) * t * t * t * t + 1;
                    },

                    easeInOutQuint: function (t) {
                        if ((t /= 0.5) < 1) {
                            return 0.5 * t * t * t * t * t;
                        }
                        return 0.5 * ((t -= 2) * t * t * t * t + 2);
                    },

                    easeInSine: function (t) {
                        return -Math.cos(t * (Math.PI / 2)) + 1;
                    },

                    easeOutSine: function (t) {
                        return Math.sin(t * (Math.PI / 2));
                    },

                    easeInOutSine: function (t) {
                        return -0.5 * (Math.cos(Math.PI * t) - 1);
                    },

                    easeInExpo: function (t) {
                        return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
                    },

                    easeOutExpo: function (t) {
                        return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
                    },

                    easeInOutExpo: function (t) {
                        if (t === 0) {
                            return 0;
                        }
                        if (t === 1) {
                            return 1;
                        }
                        if ((t /= 0.5) < 1) {
                            return 0.5 * Math.pow(2, 10 * (t - 1));
                        }
                        return 0.5 * (-Math.pow(2, -10 * --t) + 2);
                    },

                    easeInCirc: function (t) {
                        if (t >= 1) {
                            return t;
                        }
                        return -(Math.sqrt(1 - t * t) - 1);
                    },

                    easeOutCirc: function (t) {
                        return Math.sqrt(1 - (t = t - 1) * t);
                    },

                    easeInOutCirc: function (t) {
                        if ((t /= 0.5) < 1) {
                            return -0.5 * (Math.sqrt(1 - t * t) - 1);
                        }
                        return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
                    },

                    easeInElastic: function (t) {
                        var s = 1.70158;
                        var p = 0;
                        var a = 1;
                        if (t === 0) {
                            return 0;
                        }
                        if (t === 1) {
                            return 1;
                        }
                        if (!p) {
                            p = 0.3;
                        }
                        if (a < 1) {
                            a = 1;
                            s = p / 4;
                        } else {
                            s = p / (2 * Math.PI) * Math.asin(1 / a);
                        }
                        return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
                    },

                    easeOutElastic: function (t) {
                        var s = 1.70158;
                        var p = 0;
                        var a = 1;
                        if (t === 0) {
                            return 0;
                        }
                        if (t === 1) {
                            return 1;
                        }
                        if (!p) {
                            p = 0.3;
                        }
                        if (a < 1) {
                            a = 1;
                            s = p / 4;
                        } else {
                            s = p / (2 * Math.PI) * Math.asin(1 / a);
                        }
                        return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
                    },

                    easeInOutElastic: function (t) {
                        var s = 1.70158;
                        var p = 0;
                        var a = 1;
                        if (t === 0) {
                            return 0;
                        }
                        if ((t /= 0.5) === 2) {
                            return 1;
                        }
                        if (!p) {
                            p = 0.45;
                        }
                        if (a < 1) {
                            a = 1;
                            s = p / 4;
                        } else {
                            s = p / (2 * Math.PI) * Math.asin(1 / a);
                        }
                        if (t < 1) {
                            return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
                        }
                        return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
                    },
                    easeInBack: function (t) {
                        var s = 1.70158;
                        return t * t * ((s + 1) * t - s);
                    },

                    easeOutBack: function (t) {
                        var s = 1.70158;
                        return (t = t - 1) * t * ((s + 1) * t + s) + 1;
                    },

                    easeInOutBack: function (t) {
                        var s = 1.70158;
                        if ((t /= 0.5) < 1) {
                            return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
                        }
                        return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
                    },

                    easeInBounce: function (t) {
                        return 1 - effects.easeOutBounce(1 - t);
                    },

                    easeOutBounce: function (t) {
                        if (t < (1 / 2.75)) {
                            return 7.5625 * t * t;
                        }
                        if (t < (2 / 2.75)) {
                            return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
                        }
                        if (t < (2.5 / 2.75)) {
                            return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
                        }
                        return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
                    },

                    easeInOutBounce: function (t) {
                        if (t < 0.5) {
                            return effects.easeInBounce(t * 2) * 0.5;
                        }
                        return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
                    }
                };

                module.exports = {
                    effects: effects
                };

// DEPRECATIONS

                /**
                 * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
                 * @function Chart.helpers.easingEffects
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.easingEffects = effects;

            }, {"42": 42}], 44: [function (require, module, exports) {
                'use strict';

                var helpers = require(42);

                /**
                 * @alias Chart.helpers.options
                 * @namespace
                 */
                module.exports = {
                    /**
                     * Converts the given line height `value` in pixels for a specific font `size`.
                     * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
                     * @param {Number} size - The font size (in pixels) used to resolve relative `value`.
                     * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid).
                     * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
                     * @since 2.7.0
                     */
                    toLineHeight: function (value, size) {
                        var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
                        if (!matches || matches[1] === 'normal') {
                            return size * 1.2;
                        }

                        value = +matches[2];

                        switch (matches[3]) {
                            case 'px':
                                return value;
                            case '%':
                                value /= 100;
                                break;
                            default:
                                break;
                        }

                        return size * value;
                    },

                    /**
                     * Converts the given value into a padding object with pre-computed width/height.
                     * @param {Number|Object} value - If a number, set the value to all TRBL component,
                     *  else, if and object, use defined properties and sets undefined ones to 0.
                     * @returns {Object} The padding values (top, right, bottom, left, width, height)
                     * @since 2.7.0
                     */
                    toPadding: function (value) {
                        var t, r, b, l;

                        if (helpers.isObject(value)) {
                            t = +value.top || 0;
                            r = +value.right || 0;
                            b = +value.bottom || 0;
                            l = +value.left || 0;
                        } else {
                            t = r = b = l = +value || 0;
                        }

                        return {
                            top: t,
                            right: r,
                            bottom: b,
                            left: l,
                            height: t + b,
                            width: l + r
                        };
                    },

                    /**
                     * Evaluates the given `inputs` sequentially and returns the first defined value.
                     * @param {Array[]} inputs - An array of values, falling back to the last value.
                     * @param {Object} [context] - If defined and the current value is a function, the value
                     * is called with `context` as first argument and the result becomes the new input.
                     * @param {Number} [index] - If defined and the current value is an array, the value
                     * at `index` become the new input.
                     * @since 2.7.0
                     */
                    resolve: function (inputs, context, index) {
                        var i, ilen, value;

                        for (i = 0, ilen = inputs.length; i < ilen; ++i) {
                            value = inputs[i];
                            if (value === undefined) {
                                continue;
                            }
                            if (context !== undefined && typeof value === 'function') {
                                value = value(context);
                            }
                            if (index !== undefined && helpers.isArray(value)) {
                                value = value[index];
                            }
                            if (value !== undefined) {
                                return value;
                            }
                        }
                    }
                };

            }, {"42": 42}], 45: [function (require, module, exports) {
                'use strict';

                module.exports = require(42);
                module.exports.easing = require(43);
                module.exports.canvas = require(41);
                module.exports.options = require(44);

            }, {"41": 41, "42": 42, "43": 43, "44": 44}], 46: [function (require, module, exports) {
                /**
                 * Platform fallback implementation (minimal).
                 * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
                 */

                module.exports = {
                    acquireContext: function (item) {
                        if (item && item.canvas) {
                            // Support for any object associated to a canvas (including a context2d)
                            item = item.canvas;
                        }

                        return item && item.getContext('2d') || null;
                    }
                };

            }, {}], 47: [function (require, module, exports) {
                /**
                 * Chart.Platform implementation for targeting a web browser
                 */

                'use strict';

                var helpers = require(45);

                var EXPANDO_KEY = '$chartjs';
                var CSS_PREFIX = 'chartjs-';
                var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
                var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
                var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];

                /**
                 * DOM event types -> Chart.js event types.
                 * Note: only events with different types are mapped.
                 * @see https://developer.mozilla.org/en-US/docs/Web/Events
                 */
                var EVENT_TYPES = {
                    touchstart: 'mousedown',
                    touchmove: 'mousemove',
                    touchend: 'mouseup',
                    pointerenter: 'mouseenter',
                    pointerdown: 'mousedown',
                    pointermove: 'mousemove',
                    pointerup: 'mouseup',
                    pointerleave: 'mouseout',
                    pointerout: 'mouseout'
                };

                /**
                 * The "used" size is the final value of a dimension property after all calculations have
                 * been performed. This method uses the computed style of `element` but returns undefined
                 * if the computed style is not expressed in pixels. That can happen in some cases where
                 * `element` has a size relative to its parent and this last one is not yet displayed,
                 * for example because of `display: none` on a parent node.
                 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
                 * @returns {Number} Size in pixels or undefined if unknown.
                 */
                function readUsedSize(element, property) {
                    var value = helpers.getStyle(element, property);
                    var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
                    return matches ? Number(matches[1]) : undefined;
                }

                /**
                 * Initializes the canvas style and render size without modifying the canvas display size,
                 * since responsiveness is handled by the controller.resize() method. The config is used
                 * to determine the aspect ratio to apply in case no explicit height has been specified.
                 */
                function initCanvas(canvas, config) {
                    var style = canvas.style;

                    // NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
                    // returns null or '' if no explicit value has been set to the canvas attribute.
                    var renderHeight = canvas.getAttribute('height');
                    var renderWidth = canvas.getAttribute('width');

                    // Chart.js modifies some canvas values that we want to restore on destroy
                    canvas[EXPANDO_KEY] = {
                        initial: {
                            height: renderHeight,
                            width: renderWidth,
                            style: {
                                display: style.display,
                                height: style.height,
                                width: style.width
                            }
                        }
                    };

                    // Force canvas to display as block to avoid extra space caused by inline
                    // elements, which would interfere with the responsive resize process.
                    // https://github.com/chartjs/Chart.js/issues/2538
                    style.display = style.display || 'block';

                    if (renderWidth === null || renderWidth === '') {
                        var displayWidth = readUsedSize(canvas, 'width');
                        if (displayWidth !== undefined) {
                            canvas.width = displayWidth;
                        }
                    }

                    if (renderHeight === null || renderHeight === '') {
                        if (canvas.style.height === '') {
                            // If no explicit render height and style height, let's apply the aspect ratio,
                            // which one can be specified by the user but also by charts as default option
                            // (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
                            canvas.height = canvas.width / (config.options.aspectRatio || 2);
                        } else {
                            var displayHeight = readUsedSize(canvas, 'height');
                            if (displayWidth !== undefined) {
                                canvas.height = displayHeight;
                            }
                        }
                    }

                    return canvas;
                }

                /**
                 * Detects support for options object argument in addEventListener.
                 * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
                 * @private
                 */
                var supportsEventListenerOptions = (function () {
                    var supports = false;
                    try {
                        var options = Object.defineProperty({}, 'passive', {
                            get: function () {
                                supports = true;
                            }
                        });
                        window.addEventListener('e', null, options);
                    } catch (e) {
                        // continue regardless of error
                    }
                    return supports;
                }());

// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
// https://github.com/chartjs/Chart.js/issues/4287
                var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;

                function addEventListener(node, type, listener) {
                    node.addEventListener(type, listener, eventListenerOptions);
                }

                function removeEventListener(node, type, listener) {
                    node.removeEventListener(type, listener, eventListenerOptions);
                }

                function createEvent(type, chart, x, y, nativeEvent) {
                    return {
                        type: type,
                        chart: chart,
                        native: nativeEvent || null,
                        x: x !== undefined ? x : null,
                        y: y !== undefined ? y : null,
                    };
                }

                function fromNativeEvent(event, chart) {
                    var type = EVENT_TYPES[event.type] || event.type;
                    var pos = helpers.getRelativePosition(event, chart);
                    return createEvent(type, chart, pos.x, pos.y, event);
                }

                function throttled(fn, thisArg) {
                    var ticking = false;
                    var args = [];

                    return function () {
                        args = Array.prototype.slice.call(arguments);
                        thisArg = thisArg || this;

                        if (!ticking) {
                            ticking = true;
                            helpers.requestAnimFrame.call(window, function () {
                                ticking = false;
                                fn.apply(thisArg, args);
                            });
                        }
                    };
                }

// Implementation based on https://github.com/marcj/css-element-queries
                function createResizer(handler) {
                    var resizer = document.createElement('div');
                    var cls = CSS_PREFIX + 'size-monitor';
                    var maxSize = 1000000;
                    var style =
                            'position:absolute;' +
                            'left:0;' +
                            'top:0;' +
                            'right:0;' +
                            'bottom:0;' +
                            'overflow:hidden;' +
                            'pointer-events:none;' +
                            'visibility:hidden;' +
                            'z-index:-1;';

                    resizer.style.cssText = style;
                    resizer.className = cls;
                    resizer.innerHTML =
                            '<div class="' + cls + '-expand" style="' + style + '">' +
                            '<div style="' +
                            'position:absolute;' +
                            'width:' + maxSize + 'px;' +
                            'height:' + maxSize + 'px;' +
                            'left:0;' +
                            'top:0">' +
                            '</div>' +
                            '</div>' +
                            '<div class="' + cls + '-shrink" style="' + style + '">' +
                            '<div style="' +
                            'position:absolute;' +
                            'width:200%;' +
                            'height:200%;' +
                            'left:0; ' +
                            'top:0">' +
                            '</div>' +
                            '</div>';

                    var expand = resizer.childNodes[0];
                    var shrink = resizer.childNodes[1];

                    resizer._reset = function () {
                        expand.scrollLeft = maxSize;
                        expand.scrollTop = maxSize;
                        shrink.scrollLeft = maxSize;
                        shrink.scrollTop = maxSize;
                    };
                    var onScroll = function () {
                        resizer._reset();
                        handler();
                    };

                    addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
                    addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));

                    return resizer;
                }

// https://davidwalsh.name/detect-node-insertion
                function watchForRender(node, handler) {
                    var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
                    var proxy = expando.renderProxy = function (e) {
                        if (e.animationName === CSS_RENDER_ANIMATION) {
                            handler();
                        }
                    };

                    helpers.each(ANIMATION_START_EVENTS, function (type) {
                        addEventListener(node, type, proxy);
                    });

                    // #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
                    // is removed then added back immediately (same animation frame?). Accessing the
                    // `offsetParent` property will force a reflow and re-evaluate the CSS animation.
                    // https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
                    // https://github.com/chartjs/Chart.js/issues/4737
                    expando.reflow = !!node.offsetParent;

                    node.classList.add(CSS_RENDER_MONITOR);
                }

                function unwatchForRender(node) {
                    var expando = node[EXPANDO_KEY] || {};
                    var proxy = expando.renderProxy;

                    if (proxy) {
                        helpers.each(ANIMATION_START_EVENTS, function (type) {
                            removeEventListener(node, type, proxy);
                        });

                        delete expando.renderProxy;
                    }

                    node.classList.remove(CSS_RENDER_MONITOR);
                }

                function addResizeListener(node, listener, chart) {
                    var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});

                    // Let's keep track of this added resizer and thus avoid DOM query when removing it.
                    var resizer = expando.resizer = createResizer(throttled(function () {
                        if (expando.resizer) {
                            return listener(createEvent('resize', chart));
                        }
                    }));

                    // The resizer needs to be attached to the node parent, so we first need to be
                    // sure that `node` is attached to the DOM before injecting the resizer element.
                    watchForRender(node, function () {
                        if (expando.resizer) {
                            var container = node.parentNode;
                            if (container && container !== resizer.parentNode) {
                                container.insertBefore(resizer, container.firstChild);
                            }

                            // The container size might have changed, let's reset the resizer state.
                            resizer._reset();
                        }
                    });
                }

                function removeResizeListener(node) {
                    var expando = node[EXPANDO_KEY] || {};
                    var resizer = expando.resizer;

                    delete expando.resizer;
                    unwatchForRender(node);

                    if (resizer && resizer.parentNode) {
                        resizer.parentNode.removeChild(resizer);
                    }
                }

                function injectCSS(platform, css) {
                    // http://stackoverflow.com/q/3922139
                    var style = platform._style || document.createElement('style');
                    if (!platform._style) {
                        platform._style = style;
                        css = '/* Chart.js */\n' + css;
                        style.setAttribute('type', 'text/css');
                        document.getElementsByTagName('head')[0].appendChild(style);
                    }

                    style.appendChild(document.createTextNode(css));
                }

                module.exports = {
                    /**
                     * This property holds whether this platform is enabled for the current environment.
                     * Currently used by platform.js to select the proper implementation.
                     * @private
                     */
                    _enabled: typeof window !== 'undefined' && typeof document !== 'undefined',

                    initialize: function () {
                        var keyframes = 'from{opacity:0.99}to{opacity:1}';

                        injectCSS(this,
                                // DOM rendering detection
                                // https://davidwalsh.name/detect-node-insertion
                                '@-webkit-keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
                                '@keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
                                '.' + CSS_RENDER_MONITOR + '{' +
                                '-webkit-animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
                                'animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
                                '}'
                                );
                    },

                    acquireContext: function (item, config) {
                        if (typeof item === 'string') {
                            item = document.getElementById(item);
                        } else if (item.length) {
                            // Support for array based queries (such as jQuery)
                            item = item[0];
                        }

                        if (item && item.canvas) {
                            // Support for any object associated to a canvas (including a context2d)
                            item = item.canvas;
                        }

                        // To prevent canvas fingerprinting, some add-ons undefine the getContext
                        // method, for example: https://github.com/kkapsner/CanvasBlocker
                        // https://github.com/chartjs/Chart.js/issues/2807
                        var context = item && item.getContext && item.getContext('2d');

                        // `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
                        // inside an iframe or when running in a protected environment. We could guess the
                        // types from their toString() value but let's keep things flexible and assume it's
                        // a sufficient condition if the item has a context2D which has item as `canvas`.
                        // https://github.com/chartjs/Chart.js/issues/3887
                        // https://github.com/chartjs/Chart.js/issues/4102
                        // https://github.com/chartjs/Chart.js/issues/4152
                        if (context && context.canvas === item) {
                            initCanvas(item, config);
                            return context;
                        }

                        return null;
                    },

                    releaseContext: function (context) {
                        var canvas = context.canvas;
                        if (!canvas[EXPANDO_KEY]) {
                            return;
                        }

                        var initial = canvas[EXPANDO_KEY].initial;
                        ['height', 'width'].forEach(function (prop) {
                            var value = initial[prop];
                            if (helpers.isNullOrUndef(value)) {
                                canvas.removeAttribute(prop);
                            } else {
                                canvas.setAttribute(prop, value);
                            }
                        });

                        helpers.each(initial.style || {}, function (value, key) {
                            canvas.style[key] = value;
                        });

                        // The canvas render size might have been changed (and thus the state stack discarded),
                        // we can't use save() and restore() to restore the initial state. So make sure that at
                        // least the canvas context is reset to the default state by setting the canvas width.
                        // https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
                        canvas.width = canvas.width;

                        delete canvas[EXPANDO_KEY];
                    },

                    addEventListener: function (chart, type, listener) {
                        var canvas = chart.canvas;
                        if (type === 'resize') {
                            // Note: the resize event is not supported on all browsers.
                            addResizeListener(canvas, listener, chart);
                            return;
                        }

                        var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
                        var proxies = expando.proxies || (expando.proxies = {});
                        var proxy = proxies[chart.id + '_' + type] = function (event) {
                            listener(fromNativeEvent(event, chart));
                        };

                        addEventListener(canvas, type, proxy);
                    },

                    removeEventListener: function (chart, type, listener) {
                        var canvas = chart.canvas;
                        if (type === 'resize') {
                            // Note: the resize event is not supported on all browsers.
                            removeResizeListener(canvas, listener);
                            return;
                        }

                        var expando = listener[EXPANDO_KEY] || {};
                        var proxies = expando.proxies || {};
                        var proxy = proxies[chart.id + '_' + type];
                        if (!proxy) {
                            return;
                        }

                        removeEventListener(canvas, type, proxy);
                    }
                };

// DEPRECATIONS

                /**
                 * Provided for backward compatibility, use EventTarget.addEventListener instead.
                 * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
                 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
                 * @function Chart.helpers.addEvent
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.addEvent = addEventListener;

                /**
                 * Provided for backward compatibility, use EventTarget.removeEventListener instead.
                 * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
                 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
                 * @function Chart.helpers.removeEvent
                 * @deprecated since version 2.7.0
                 * @todo remove at version 3
                 * @private
                 */
                helpers.removeEvent = removeEventListener;

            }, {"45": 45}], 48: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);
                var basic = require(46);
                var dom = require(47);

// @TODO Make possible to select another platform at build time.
                var implementation = dom._enabled ? dom : basic;

                /**
                 * @namespace Chart.platform
                 * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
                 * @since 2.4.0
                 */
                module.exports = helpers.extend({
                    /**
                     * @since 2.7.0
                     */
                    initialize: function () {},

                    /**
                     * Called at chart construction time, returns a context2d instance implementing
                     * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
                     * @param {*} item - The native item from which to acquire context (platform specific)
                     * @param {Object} options - The chart options
                     * @returns {CanvasRenderingContext2D} context2d instance
                     */
                    acquireContext: function () {},

                    /**
                     * Called at chart destruction time, releases any resources associated to the context
                     * previously returned by the acquireContext() method.
                     * @param {CanvasRenderingContext2D} context - The context2d instance
                     * @returns {Boolean} true if the method succeeded, else false
                     */
                    releaseContext: function () {},

                    /**
                     * Registers the specified listener on the given chart.
                     * @param {Chart} chart - Chart from which to listen for event
                     * @param {String} type - The ({@link IEvent}) type to listen for
                     * @param {Function} listener - Receives a notification (an object that implements
                     * the {@link IEvent} interface) when an event of the specified type occurs.
                     */
                    addEventListener: function () {},

                    /**
                     * Removes the specified listener previously registered with addEventListener.
                     * @param {Chart} chart -Chart from which to remove the listener
                     * @param {String} type - The ({@link IEvent}) type to remove
                     * @param {Function} listener - The listener function to remove from the event target.
                     */
                    removeEventListener: function () {}

                }, implementation);

                /**
                 * @interface IPlatform
                 * Allows abstracting platform dependencies away from the chart
                 * @borrows Chart.platform.acquireContext as acquireContext
                 * @borrows Chart.platform.releaseContext as releaseContext
                 * @borrows Chart.platform.addEventListener as addEventListener
                 * @borrows Chart.platform.removeEventListener as removeEventListener
                 */

                /**
                 * @interface IEvent
                 * @prop {String} type - The event type name, possible values are:
                 * 'contextmenu', 'mouseenter', 'mousedown', 'mousemove', 'mouseup', 'mouseout',
                 * 'click', 'dblclick', 'keydown', 'keypress', 'keyup' and 'resize'
                 * @prop {*} native - The original native event (null for emulated events, e.g. 'resize')
                 * @prop {Number} x - The mouse x position, relative to the canvas (null for incompatible events)
                 * @prop {Number} y - The mouse y position, relative to the canvas (null for incompatible events)
                 */

            }, {"45": 45, "46": 46, "47": 47}], 49: [function (require, module, exports) {
                'use strict';

                module.exports = {};
                module.exports.filler = require(50);
                module.exports.legend = require(51);
                module.exports.title = require(52);

            }, {"50": 50, "51": 51, "52": 52}], 50: [function (require, module, exports) {
                /**
                 * Plugin based on discussion from the following Chart.js issues:
                 * @see https://github.com/chartjs/Chart.js/issues/2380#issuecomment-279961569
                 * @see https://github.com/chartjs/Chart.js/issues/2440#issuecomment-256461897
                 */

                'use strict';

                var defaults = require(25);
                var elements = require(40);
                var helpers = require(45);

                defaults._set('global', {
                    plugins: {
                        filler: {
                            propagate: true
                        }
                    }
                });

                var mappers = {
                    dataset: function (source) {
                        var index = source.fill;
                        var chart = source.chart;
                        var meta = chart.getDatasetMeta(index);
                        var visible = meta && chart.isDatasetVisible(index);
                        var points = (visible && meta.dataset._children) || [];
                        var length = points.length || 0;

                        return !length ? null : function (point, i) {
                            return (i < length && points[i]._view) || null;
                        };
                    },

                    boundary: function (source) {
                        var boundary = source.boundary;
                        var x = boundary ? boundary.x : null;
                        var y = boundary ? boundary.y : null;

                        return function (point) {
                            return {
                                x: x === null ? point.x : x,
                                y: y === null ? point.y : y,
                            };
                        };
                    }
                };

// @todo if (fill[0] === '#')
                function decodeFill(el, index, count) {
                    var model = el._model || {};
                    var fill = model.fill;
                    var target;

                    if (fill === undefined) {
                        fill = !!model.backgroundColor;
                    }

                    if (fill === false || fill === null) {
                        return false;
                    }

                    if (fill === true) {
                        return 'origin';
                    }

                    target = parseFloat(fill, 10);
                    if (isFinite(target) && Math.floor(target) === target) {
                        if (fill[0] === '-' || fill[0] === '+') {
                            target = index + target;
                        }

                        if (target === index || target < 0 || target >= count) {
                            return false;
                        }

                        return target;
                    }

                    switch (fill) {
                        // compatibility
                        case 'bottom':
                            return 'start';
                        case 'top':
                            return 'end';
                        case 'zero':
                            return 'origin';
                            // supported boundaries
                        case 'origin':
                        case 'start':
                        case 'end':
                            return fill;
                            // invalid fill values
                        default:
                            return false;
                    }
                }

                function computeBoundary(source) {
                    var model = source.el._model || {};
                    var scale = source.el._scale || {};
                    var fill = source.fill;
                    var target = null;
                    var horizontal;

                    if (isFinite(fill)) {
                        return null;
                    }

                    // Backward compatibility: until v3, we still need to support boundary values set on
                    // the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
                    // controllers might still use it (e.g. the Smith chart).

                    if (fill === 'start') {
                        target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
                    } else if (fill === 'end') {
                        target = model.scaleTop === undefined ? scale.top : model.scaleTop;
                    } else if (model.scaleZero !== undefined) {
                        target = model.scaleZero;
                    } else if (scale.getBasePosition) {
                        target = scale.getBasePosition();
                    } else if (scale.getBasePixel) {
                        target = scale.getBasePixel();
                    }

                    if (target !== undefined && target !== null) {
                        if (target.x !== undefined && target.y !== undefined) {
                            return target;
                        }

                        if (typeof target === 'number' && isFinite(target)) {
                            horizontal = scale.isHorizontal();
                            return {
                                x: horizontal ? target : null,
                                y: horizontal ? null : target
                            };
                        }
                    }

                    return null;
                }

                function resolveTarget(sources, index, propagate) {
                    var source = sources[index];
                    var fill = source.fill;
                    var visited = [index];
                    var target;

                    if (!propagate) {
                        return fill;
                    }

                    while (fill !== false && visited.indexOf(fill) === -1) {
                        if (!isFinite(fill)) {
                            return fill;
                        }

                        target = sources[fill];
                        if (!target) {
                            return false;
                        }

                        if (target.visible) {
                            return fill;
                        }

                        visited.push(fill);
                        fill = target.fill;
                    }

                    return false;
                }

                function createMapper(source) {
                    var fill = source.fill;
                    var type = 'dataset';

                    if (fill === false) {
                        return null;
                    }

                    if (!isFinite(fill)) {
                        type = 'boundary';
                    }

                    return mappers[type](source);
                }

                function isDrawable(point) {
                    return point && !point.skip;
                }

                function drawArea(ctx, curve0, curve1, len0, len1) {
                    var i;

                    if (!len0 || !len1) {
                        return;
                    }

                    // building first area curve (normal)
                    ctx.moveTo(curve0[0].x, curve0[0].y);
                    for (i = 1; i < len0; ++i) {
                        helpers.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
                    }

                    // joining the two area curves
                    ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);

                    // building opposite area curve (reverse)
                    for (i = len1 - 1; i > 0; --i) {
                        helpers.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
                    }
                }

                function doFill(ctx, points, mapper, view, color, loop) {
                    var count = points.length;
                    var span = view.spanGaps;
                    var curve0 = [];
                    var curve1 = [];
                    var len0 = 0;
                    var len1 = 0;
                    var i, ilen, index, p0, p1, d0, d1;

                    ctx.beginPath();

                    for (i = 0, ilen = (count + !!loop); i < ilen; ++i) {
                        index = i % count;
                        p0 = points[index]._view;
                        p1 = mapper(p0, index, view);
                        d0 = isDrawable(p0);
                        d1 = isDrawable(p1);

                        if (d0 && d1) {
                            len0 = curve0.push(p0);
                            len1 = curve1.push(p1);
                        } else if (len0 && len1) {
                            if (!span) {
                                drawArea(ctx, curve0, curve1, len0, len1);
                                len0 = len1 = 0;
                                curve0 = [];
                                curve1 = [];
                            } else {
                                if (d0) {
                                    curve0.push(p0);
                                }
                                if (d1) {
                                    curve1.push(p1);
                                }
                            }
                        }
                    }

                    drawArea(ctx, curve0, curve1, len0, len1);

                    ctx.closePath();
                    ctx.fillStyle = color;
                    ctx.fill();
                }

                module.exports = {
                    id: 'filler',

                    afterDatasetsUpdate: function (chart, options) {
                        var count = (chart.data.datasets || []).length;
                        var propagate = options.propagate;
                        var sources = [];
                        var meta, i, el, source;

                        for (i = 0; i < count; ++i) {
                            meta = chart.getDatasetMeta(i);
                            el = meta.dataset;
                            source = null;

                            if (el && el._model && el instanceof elements.Line) {
                                source = {
                                    visible: chart.isDatasetVisible(i),
                                    fill: decodeFill(el, i, count),
                                    chart: chart,
                                    el: el
                                };
                            }

                            meta.$filler = source;
                            sources.push(source);
                        }

                        for (i = 0; i < count; ++i) {
                            source = sources[i];
                            if (!source) {
                                continue;
                            }

                            source.fill = resolveTarget(sources, i, propagate);
                            source.boundary = computeBoundary(source);
                            source.mapper = createMapper(source);
                        }
                    },

                    beforeDatasetDraw: function (chart, args) {
                        var meta = args.meta.$filler;
                        if (!meta) {
                            return;
                        }

                        var ctx = chart.ctx;
                        var el = meta.el;
                        var view = el._view;
                        var points = el._children || [];
                        var mapper = meta.mapper;
                        var color = view.backgroundColor || defaults.global.defaultColor;

                        if (mapper && color && points.length) {
                            helpers.canvas.clipArea(ctx, chart.chartArea);
                            doFill(ctx, points, mapper, view, color, el._loop);
                            helpers.canvas.unclipArea(ctx);
                        }
                    }
                };

            }, {"25": 25, "40": 40, "45": 45}], 51: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);
                var layouts = require(30);

                var noop = helpers.noop;

                defaults._set('global', {
                    legend: {
                        display: true,
                        position: 'top',
                        fullWidth: true,
                        reverse: false,
                        weight: 1000,

                        // a callback that will handle
                        onClick: function (e, legendItem) {
                            var index = legendItem.datasetIndex;
                            var ci = this.chart;
                            var meta = ci.getDatasetMeta(index);

                            // See controller.isDatasetVisible comment
                            meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;

                            // We hid a dataset ... rerender the chart
                            ci.update();
                        },

                        onHover: null,

                        labels: {
                            boxWidth: 40,
                            padding: 10,
                            // Generates labels shown in the legend
                            // Valid properties to return:
                            // text : text to display
                            // fillStyle : fill of coloured box
                            // strokeStyle: stroke of coloured box
                            // hidden : if this legend item refers to a hidden item
                            // lineCap : cap style for line
                            // lineDash
                            // lineDashOffset :
                            // lineJoin :
                            // lineWidth :
                            generateLabels: function (chart) {
                                var data = chart.data;
                                return helpers.isArray(data.datasets) ? data.datasets.map(function (dataset, i) {
                                    return {
                                        text: dataset.label,
                                        fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
                                        hidden: !chart.isDatasetVisible(i),
                                        lineCap: dataset.borderCapStyle,
                                        lineDash: dataset.borderDash,
                                        lineDashOffset: dataset.borderDashOffset,
                                        lineJoin: dataset.borderJoinStyle,
                                        lineWidth: dataset.borderWidth,
                                        strokeStyle: dataset.borderColor,
                                        pointStyle: dataset.pointStyle,

                                        // Below is extra data used for toggling the datasets
                                        datasetIndex: i
                                    };
                                }, this) : [];
                            }
                        }
                    },

                    legendCallback: function (chart) {
                        var text = [];
                        text.push('<ul class="' + chart.id + '-legend">');
                        for (var i = 0; i < chart.data.datasets.length; i++) {
                            text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>');
                            if (chart.data.datasets[i].label) {
                                text.push(chart.data.datasets[i].label);
                            }
                            text.push('</li>');
                        }
                        text.push('</ul>');
                        return text.join('');
                    }
                });

                /**
                 * Helper function to get the box width based on the usePointStyle option
                 * @param labelopts {Object} the label options on the legend
                 * @param fontSize {Number} the label font size
                 * @return {Number} width of the color box area
                 */
                function getBoxWidth(labelOpts, fontSize) {
                    return labelOpts.usePointStyle ?
                            fontSize * Math.SQRT2 :
                            labelOpts.boxWidth;
                }

                /**
                 * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
                 */
                var Legend = Element.extend({

                    initialize: function (config) {
                        helpers.extend(this, config);

                        // Contains hit boxes for each dataset (in dataset order)
                        this.legendHitBoxes = [];

                        // Are we in doughnut mode which has a different data type
                        this.doughnutMode = false;
                    },

                    // These methods are ordered by lifecycle. Utilities then follow.
                    // Any function defined here is inherited by all legend types.
                    // Any function can be extended by the legend type

                    beforeUpdate: noop,
                    update: function (maxWidth, maxHeight, margins) {
                        var me = this;

                        // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                        me.beforeUpdate();

                        // Absorb the master measurements
                        me.maxWidth = maxWidth;
                        me.maxHeight = maxHeight;
                        me.margins = margins;

                        // Dimensions
                        me.beforeSetDimensions();
                        me.setDimensions();
                        me.afterSetDimensions();
                        // Labels
                        me.beforeBuildLabels();
                        me.buildLabels();
                        me.afterBuildLabels();

                        // Fit
                        me.beforeFit();
                        me.fit();
                        me.afterFit();
                        //
                        me.afterUpdate();

                        return me.minSize;
                    },
                    afterUpdate: noop,

                    //

                    beforeSetDimensions: noop,
                    setDimensions: function () {
                        var me = this;
                        // Set the unconstrained dimension before label rotation
                        if (me.isHorizontal()) {
                            // Reset position before calculating rotation
                            me.width = me.maxWidth;
                            me.left = 0;
                            me.right = me.width;
                        } else {
                            me.height = me.maxHeight;

                            // Reset position before calculating rotation
                            me.top = 0;
                            me.bottom = me.height;
                        }

                        // Reset padding
                        me.paddingLeft = 0;
                        me.paddingTop = 0;
                        me.paddingRight = 0;
                        me.paddingBottom = 0;

                        // Reset minSize
                        me.minSize = {
                            width: 0,
                            height: 0
                        };
                    },
                    afterSetDimensions: noop,

                    //

                    beforeBuildLabels: noop,
                    buildLabels: function () {
                        var me = this;
                        var labelOpts = me.options.labels || {};
                        var legendItems = helpers.callback(labelOpts.generateLabels, [me.chart], me) || [];

                        if (labelOpts.filter) {
                            legendItems = legendItems.filter(function (item) {
                                return labelOpts.filter(item, me.chart.data);
                            });
                        }

                        if (me.options.reverse) {
                            legendItems.reverse();
                        }

                        me.legendItems = legendItems;
                    },
                    afterBuildLabels: noop,

                    //

                    beforeFit: noop,
                    fit: function () {
                        var me = this;
                        var opts = me.options;
                        var labelOpts = opts.labels;
                        var display = opts.display;

                        var ctx = me.ctx;

                        var globalDefault = defaults.global;
                        var valueOrDefault = helpers.valueOrDefault;
                        var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
                        var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
                        var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
                        var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);

                        // Reset hit boxes
                        var hitboxes = me.legendHitBoxes = [];

                        var minSize = me.minSize;
                        var isHorizontal = me.isHorizontal();

                        if (isHorizontal) {
                            minSize.width = me.maxWidth; // fill all the width
                            minSize.height = display ? 10 : 0;
                        } else {
                            minSize.width = display ? 10 : 0;
                            minSize.height = me.maxHeight; // fill all the height
                        }

                        // Increase sizes here
                        if (display) {
                            ctx.font = labelFont;

                            if (isHorizontal) {
                                // Labels

                                // Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
                                var lineWidths = me.lineWidths = [0];
                                var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;

                                ctx.textAlign = 'left';
                                ctx.textBaseline = 'top';

                                helpers.each(me.legendItems, function (legendItem, i) {
                                    var boxWidth = getBoxWidth(labelOpts, fontSize);
                                    var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

                                    if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
                                        totalHeight += fontSize + (labelOpts.padding);
                                        lineWidths[lineWidths.length] = me.left;
                                    }

                                    // Store the hitbox width and height here. Final position will be updated in `draw`
                                    hitboxes[i] = {
                                        left: 0,
                                        top: 0,
                                        width: width,
                                        height: fontSize
                                    };

                                    lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
                                });

                                minSize.height += totalHeight;

                            } else {
                                var vPadding = labelOpts.padding;
                                var columnWidths = me.columnWidths = [];
                                var totalWidth = labelOpts.padding;
                                var currentColWidth = 0;
                                var currentColHeight = 0;
                                var itemHeight = fontSize + vPadding;

                                helpers.each(me.legendItems, function (legendItem, i) {
                                    var boxWidth = getBoxWidth(labelOpts, fontSize);
                                    var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

                                    // If too tall, go to new column
                                    if (currentColHeight + itemHeight > minSize.height) {
                                        totalWidth += currentColWidth + labelOpts.padding;
                                        columnWidths.push(currentColWidth); // previous column width

                                        currentColWidth = 0;
                                        currentColHeight = 0;
                                    }

                                    // Get max width
                                    currentColWidth = Math.max(currentColWidth, itemWidth);
                                    currentColHeight += itemHeight;

                                    // Store the hitbox width and height here. Final position will be updated in `draw`
                                    hitboxes[i] = {
                                        left: 0,
                                        top: 0,
                                        width: itemWidth,
                                        height: fontSize
                                    };
                                });

                                totalWidth += currentColWidth;
                                columnWidths.push(currentColWidth);
                                minSize.width += totalWidth;
                            }
                        }

                        me.width = minSize.width;
                        me.height = minSize.height;
                    },
                    afterFit: noop,

                    // Shared Methods
                    isHorizontal: function () {
                        return this.options.position === 'top' || this.options.position === 'bottom';
                    },

                    // Actually draw the legend on the canvas
                    draw: function () {
                        var me = this;
                        var opts = me.options;
                        var labelOpts = opts.labels;
                        var globalDefault = defaults.global;
                        var lineDefault = globalDefault.elements.line;
                        var legendWidth = me.width;
                        var lineWidths = me.lineWidths;

                        if (opts.display) {
                            var ctx = me.ctx;
                            var valueOrDefault = helpers.valueOrDefault;
                            var fontColor = valueOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor);
                            var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
                            var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
                            var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
                            var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
                            var cursor;

                            // Canvas setup
                            ctx.textAlign = 'left';
                            ctx.textBaseline = 'middle';
                            ctx.lineWidth = 0.5;
                            ctx.strokeStyle = fontColor; // for strikethrough effect
                            ctx.fillStyle = fontColor; // render in correct colour
                            ctx.font = labelFont;

                            var boxWidth = getBoxWidth(labelOpts, fontSize);
                            var hitboxes = me.legendHitBoxes;

                            // current position
                            var drawLegendBox = function (x, y, legendItem) {
                                if (isNaN(boxWidth) || boxWidth <= 0) {
                                    return;
                                }

                                // Set the ctx for the box
                                ctx.save();

                                ctx.fillStyle = valueOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
                                ctx.lineCap = valueOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
                                ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
                                ctx.lineJoin = valueOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
                                ctx.lineWidth = valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
                                ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
                                var isLineWidthZero = (valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth) === 0);

                                if (ctx.setLineDash) {
                                    // IE 9 and 10 do not support line dash
                                    ctx.setLineDash(valueOrDefault(legendItem.lineDash, lineDefault.borderDash));
                                }

                                if (opts.labels && opts.labels.usePointStyle) {
                                    // Recalculate x and y for drawPoint() because its expecting
                                    // x and y to be center of figure (instead of top left)
                                    var radius = fontSize * Math.SQRT2 / 2;
                                    var offSet = radius / Math.SQRT2;
                                    var centerX = x + offSet;
                                    var centerY = y + offSet;

                                    // Draw pointStyle as legend symbol
                                    helpers.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
                                } else {
                                    // Draw box as legend symbol
                                    if (!isLineWidthZero) {
                                        ctx.strokeRect(x, y, boxWidth, fontSize);
                                    }
                                    ctx.fillRect(x, y, boxWidth, fontSize);
                                }

                                ctx.restore();
                            };
                            var fillText = function (x, y, legendItem, textWidth) {
                                var halfFontSize = fontSize / 2;
                                var xLeft = boxWidth + halfFontSize + x;
                                var yMiddle = y + halfFontSize;

                                ctx.fillText(legendItem.text, xLeft, yMiddle);

                                if (legendItem.hidden) {
                                    // Strikethrough the text if hidden
                                    ctx.beginPath();
                                    ctx.lineWidth = 2;
                                    ctx.moveTo(xLeft, yMiddle);
                                    ctx.lineTo(xLeft + textWidth, yMiddle);
                                    ctx.stroke();
                                }
                            };

                            // Horizontal
                            var isHorizontal = me.isHorizontal();
                            if (isHorizontal) {
                                cursor = {
                                    x: me.left + ((legendWidth - lineWidths[0]) / 2),
                                    y: me.top + labelOpts.padding,
                                    line: 0
                                };
                            } else {
                                cursor = {
                                    x: me.left + labelOpts.padding,
                                    y: me.top + labelOpts.padding,
                                    line: 0
                                };
                            }

                            var itemHeight = fontSize + labelOpts.padding;
                            helpers.each(me.legendItems, function (legendItem, i) {
                                var textWidth = ctx.measureText(legendItem.text).width;
                                var width = boxWidth + (fontSize / 2) + textWidth;
                                var x = cursor.x;
                                var y = cursor.y;

                                if (isHorizontal) {
                                    if (x + width >= legendWidth) {
                                        y = cursor.y += itemHeight;
                                        cursor.line++;
                                        x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
                                    }
                                } else if (y + itemHeight > me.bottom) {
                                    x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
                                    y = cursor.y = me.top + labelOpts.padding;
                                    cursor.line++;
                                }

                                drawLegendBox(x, y, legendItem);

                                hitboxes[i].left = x;
                                hitboxes[i].top = y;

                                // Fill the actual label
                                fillText(x, y, legendItem, textWidth);

                                if (isHorizontal) {
                                    cursor.x += width + (labelOpts.padding);
                                } else {
                                    cursor.y += itemHeight;
                                }

                            });
                        }
                    },

                    /**
                     * Handle an event
                     * @private
                     * @param {IEvent} event - The event to handle
                     * @return {Boolean} true if a change occured
                     */
                    handleEvent: function (e) {
                        var me = this;
                        var opts = me.options;
                        var type = e.type === 'mouseup' ? 'click' : e.type;
                        var changed = false;

                        if (type === 'mousemove') {
                            if (!opts.onHover) {
                                return;
                            }
                        } else if (type === 'click') {
                            if (!opts.onClick) {
                                return;
                            }
                        } else {
                            return;
                        }

                        // Chart event already has relative position in it
                        var x = e.x;
                        var y = e.y;

                        if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
                            // See if we are touching one of the dataset boxes
                            var lh = me.legendHitBoxes;
                            for (var i = 0; i < lh.length; ++i) {
                                var hitBox = lh[i];

                                if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
                                    // Touching an element
                                    if (type === 'click') {
                                        // use e.native for backwards compatibility
                                        opts.onClick.call(me, e.native, me.legendItems[i]);
                                        changed = true;
                                        break;
                                    } else if (type === 'mousemove') {
                                        // use e.native for backwards compatibility
                                        opts.onHover.call(me, e.native, me.legendItems[i]);
                                        changed = true;
                                        break;
                                    }
                                }
                            }
                        }

                        return changed;
                    }
                });

                function createNewLegendAndAttach(chart, legendOpts) {
                    var legend = new Legend({
                        ctx: chart.ctx,
                        options: legendOpts,
                        chart: chart
                    });

                    layouts.configure(chart, legend, legendOpts);
                    layouts.addBox(chart, legend);
                    chart.legend = legend;
                }

                module.exports = {
                    id: 'legend',

                    /**
                     * Backward compatibility: since 2.1.5, the legend is registered as a plugin, making
                     * Chart.Legend obsolete. To avoid a breaking change, we export the Legend as part of
                     * the plugin, which one will be re-exposed in the chart.js file.
                     * https://github.com/chartjs/Chart.js/pull/2640
                     * @private
                     */
                    _element: Legend,

                    beforeInit: function (chart) {
                        var legendOpts = chart.options.legend;

                        if (legendOpts) {
                            createNewLegendAndAttach(chart, legendOpts);
                        }
                    },

                    beforeUpdate: function (chart) {
                        var legendOpts = chart.options.legend;
                        var legend = chart.legend;

                        if (legendOpts) {
                            helpers.mergeIf(legendOpts, defaults.global.legend);

                            if (legend) {
                                layouts.configure(chart, legend, legendOpts);
                                legend.options = legendOpts;
                            } else {
                                createNewLegendAndAttach(chart, legendOpts);
                            }
                        } else if (legend) {
                            layouts.removeBox(chart, legend);
                            delete chart.legend;
                        }
                    },

                    afterEvent: function (chart, e) {
                        var legend = chart.legend;
                        if (legend) {
                            legend.handleEvent(e);
                        }
                    }
                };

            }, {"25": 25, "26": 26, "30": 30, "45": 45}], 52: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var Element = require(26);
                var helpers = require(45);
                var layouts = require(30);

                var noop = helpers.noop;

                defaults._set('global', {
                    title: {
                        display: false,
                        fontStyle: 'bold',
                        fullWidth: true,
                        lineHeight: 1.2,
                        padding: 10,
                        position: 'top',
                        text: '',
                        weight: 2000         // by default greater than legend (1000) to be above
                    }
                });

                /**
                 * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
                 */
                var Title = Element.extend({
                    initialize: function (config) {
                        var me = this;
                        helpers.extend(me, config);

                        // Contains hit boxes for each dataset (in dataset order)
                        me.legendHitBoxes = [];
                    },

                    // These methods are ordered by lifecycle. Utilities then follow.

                    beforeUpdate: noop,
                    update: function (maxWidth, maxHeight, margins) {
                        var me = this;

                        // Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
                        me.beforeUpdate();

                        // Absorb the master measurements
                        me.maxWidth = maxWidth;
                        me.maxHeight = maxHeight;
                        me.margins = margins;

                        // Dimensions
                        me.beforeSetDimensions();
                        me.setDimensions();
                        me.afterSetDimensions();
                        // Labels
                        me.beforeBuildLabels();
                        me.buildLabels();
                        me.afterBuildLabels();

                        // Fit
                        me.beforeFit();
                        me.fit();
                        me.afterFit();
                        //
                        me.afterUpdate();

                        return me.minSize;

                    },
                    afterUpdate: noop,

                    //

                    beforeSetDimensions: noop,
                    setDimensions: function () {
                        var me = this;
                        // Set the unconstrained dimension before label rotation
                        if (me.isHorizontal()) {
                            // Reset position before calculating rotation
                            me.width = me.maxWidth;
                            me.left = 0;
                            me.right = me.width;
                        } else {
                            me.height = me.maxHeight;

                            // Reset position before calculating rotation
                            me.top = 0;
                            me.bottom = me.height;
                        }

                        // Reset padding
                        me.paddingLeft = 0;
                        me.paddingTop = 0;
                        me.paddingRight = 0;
                        me.paddingBottom = 0;

                        // Reset minSize
                        me.minSize = {
                            width: 0,
                            height: 0
                        };
                    },
                    afterSetDimensions: noop,

                    //

                    beforeBuildLabels: noop,
                    buildLabels: noop,
                    afterBuildLabels: noop,

                    //

                    beforeFit: noop,
                    fit: function () {
                        var me = this;
                        var valueOrDefault = helpers.valueOrDefault;
                        var opts = me.options;
                        var display = opts.display;
                        var fontSize = valueOrDefault(opts.fontSize, defaults.global.defaultFontSize);
                        var minSize = me.minSize;
                        var lineCount = helpers.isArray(opts.text) ? opts.text.length : 1;
                        var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
                        var textSize = display ? (lineCount * lineHeight) + (opts.padding * 2) : 0;

                        if (me.isHorizontal()) {
                            minSize.width = me.maxWidth; // fill all the width
                            minSize.height = textSize;
                        } else {
                            minSize.width = textSize;
                            minSize.height = me.maxHeight; // fill all the height
                        }

                        me.width = minSize.width;
                        me.height = minSize.height;

                    },
                    afterFit: noop,

                    // Shared Methods
                    isHorizontal: function () {
                        var pos = this.options.position;
                        return pos === 'top' || pos === 'bottom';
                    },

                    // Actually draw the title block on the canvas
                    draw: function () {
                        var me = this;
                        var ctx = me.ctx;
                        var valueOrDefault = helpers.valueOrDefault;
                        var opts = me.options;
                        var globalDefaults = defaults.global;

                        if (opts.display) {
                            var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize);
                            var fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle);
                            var fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily);
                            var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily);
                            var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
                            var offset = lineHeight / 2 + opts.padding;
                            var rotation = 0;
                            var top = me.top;
                            var left = me.left;
                            var bottom = me.bottom;
                            var right = me.right;
                            var maxWidth, titleX, titleY;

                            ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
                            ctx.font = titleFont;

                            // Horizontal
                            if (me.isHorizontal()) {
                                titleX = left + ((right - left) / 2); // midpoint of the width
                                titleY = top + offset;
                                maxWidth = right - left;
                            } else {
                                titleX = opts.position === 'left' ? left + offset : right - offset;
                                titleY = top + ((bottom - top) / 2);
                                maxWidth = bottom - top;
                                rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
                            }

                            ctx.save();
                            ctx.translate(titleX, titleY);
                            ctx.rotate(rotation);
                            ctx.textAlign = 'center';
                            ctx.textBaseline = 'middle';

                            var text = opts.text;
                            if (helpers.isArray(text)) {
                                var y = 0;
                                for (var i = 0; i < text.length; ++i) {
                                    ctx.fillText(text[i], 0, y, maxWidth);
                                    y += lineHeight;
                                }
                            } else {
                                ctx.fillText(text, 0, 0, maxWidth);
                            }

                            ctx.restore();
                        }
                    }
                });

                function createNewTitleBlockAndAttach(chart, titleOpts) {
                    var title = new Title({
                        ctx: chart.ctx,
                        options: titleOpts,
                        chart: chart
                    });

                    layouts.configure(chart, title, titleOpts);
                    layouts.addBox(chart, title);
                    chart.titleBlock = title;
                }

                module.exports = {
                    id: 'title',

                    /**
                     * Backward compatibility: since 2.1.5, the title is registered as a plugin, making
                     * Chart.Title obsolete. To avoid a breaking change, we export the Title as part of
                     * the plugin, which one will be re-exposed in the chart.js file.
                     * https://github.com/chartjs/Chart.js/pull/2640
                     * @private
                     */
                    _element: Title,

                    beforeInit: function (chart) {
                        var titleOpts = chart.options.title;

                        if (titleOpts) {
                            createNewTitleBlockAndAttach(chart, titleOpts);
                        }
                    },

                    beforeUpdate: function (chart) {
                        var titleOpts = chart.options.title;
                        var titleBlock = chart.titleBlock;

                        if (titleOpts) {
                            helpers.mergeIf(titleOpts, defaults.global.title);

                            if (titleBlock) {
                                layouts.configure(chart, titleBlock, titleOpts);
                                titleBlock.options = titleOpts;
                            } else {
                                createNewTitleBlockAndAttach(chart, titleOpts);
                            }
                        } else if (titleBlock) {
                            layouts.removeBox(chart, titleBlock);
                            delete chart.titleBlock;
                        }
                    }
                };

            }, {"25": 25, "26": 26, "30": 30, "45": 45}], 53: [function (require, module, exports) {
                'use strict';

                module.exports = function (Chart) {

                    // Default config for a category scale
                    var defaultConfig = {
                        position: 'bottom'
                    };

                    var DatasetScale = Chart.Scale.extend({
                        /**
                         * Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
                         * else fall back to data.labels
                         * @private
                         */
                        getLabels: function () {
                            var data = this.chart.data;
                            return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
                        },

                        determineDataLimits: function () {
                            var me = this;
                            var labels = me.getLabels();
                            me.minIndex = 0;
                            me.maxIndex = labels.length - 1;
                            var findIndex;

                            if (me.options.ticks.min !== undefined) {
                                // user specified min value
                                findIndex = labels.indexOf(me.options.ticks.min);
                                me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
                            }

                            if (me.options.ticks.max !== undefined) {
                                // user specified max value
                                findIndex = labels.indexOf(me.options.ticks.max);
                                me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
                            }

                            me.min = labels[me.minIndex];
                            me.max = labels[me.maxIndex];
                        },

                        buildTicks: function () {
                            var me = this;
                            var labels = me.getLabels();
                            // If we are viewing some subset of labels, slice the original array
                            me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
                        },

                        getLabelForIndex: function (index, datasetIndex) {
                            var me = this;
                            var data = me.chart.data;
                            var isHorizontal = me.isHorizontal();

                            if (data.yLabels && !isHorizontal) {
                                return me.getRightValue(data.datasets[datasetIndex].data[index]);
                            }
                            return me.ticks[index - me.minIndex];
                        },

                        // Used to get data value locations.  Value can either be an index or a numerical value
                        getPixelForValue: function (value, index) {
                            var me = this;
                            var offset = me.options.offset;
                            // 1 is added because we need the length but we have the indexes
                            var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);

                            // If value is a data object, then index is the index in the data array,
                            // not the index of the scale. We need to change that.
                            var valueCategory;
                            if (value !== undefined && value !== null) {
                                valueCategory = me.isHorizontal() ? value.x : value.y;
                            }
                            if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
                                var labels = me.getLabels();
                                value = valueCategory || value;
                                var idx = labels.indexOf(value);
                                index = idx !== -1 ? idx : index;
                            }

                            if (me.isHorizontal()) {
                                var valueWidth = me.width / offsetAmt;
                                var widthOffset = (valueWidth * (index - me.minIndex));

                                if (offset) {
                                    widthOffset += (valueWidth / 2);
                                }

                                return me.left + Math.round(widthOffset);
                            }
                            var valueHeight = me.height / offsetAmt;
                            var heightOffset = (valueHeight * (index - me.minIndex));

                            if (offset) {
                                heightOffset += (valueHeight / 2);
                            }

                            return me.top + Math.round(heightOffset);
                        },
                        getPixelForTick: function (index) {
                            return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
                        },
                        getValueForPixel: function (pixel) {
                            var me = this;
                            var offset = me.options.offset;
                            var value;
                            var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
                            var horz = me.isHorizontal();
                            var valueDimension = (horz ? me.width : me.height) / offsetAmt;

                            pixel -= horz ? me.left : me.top;

                            if (offset) {
                                pixel -= (valueDimension / 2);
                            }

                            if (pixel <= 0) {
                                value = 0;
                            } else {
                                value = Math.round(pixel / valueDimension);
                            }

                            return value + me.minIndex;
                        },
                        getBasePixel: function () {
                            return this.bottom;
                        }
                    });

                    Chart.scaleService.registerScaleType('category', DatasetScale, defaultConfig);

                };

            }, {}], 54: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var helpers = require(45);
                var Ticks = require(34);

                module.exports = function (Chart) {

                    var defaultConfig = {
                        position: 'left',
                        ticks: {
                            callback: Ticks.formatters.linear
                        }
                    };

                    var LinearScale = Chart.LinearScaleBase.extend({

                        determineDataLimits: function () {
                            var me = this;
                            var opts = me.options;
                            var chart = me.chart;
                            var data = chart.data;
                            var datasets = data.datasets;
                            var isHorizontal = me.isHorizontal();
                            var DEFAULT_MIN = 0;
                            var DEFAULT_MAX = 1;

                            function IDMatches(meta) {
                                return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
                            }

                            // First Calculate the range
                            me.min = null;
                            me.max = null;

                            var hasStacks = opts.stacked;
                            if (hasStacks === undefined) {
                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    if (hasStacks) {
                                        return;
                                    }

                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
                                            meta.stack !== undefined) {
                                        hasStacks = true;
                                    }
                                });
                            }

                            if (opts.stacked || hasStacks) {
                                var valuesPerStack = {};

                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    var key = [
                                        meta.type,
                                        // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
                                        ((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
                                        meta.stack
                                    ].join('.');

                                    if (valuesPerStack[key] === undefined) {
                                        valuesPerStack[key] = {
                                            positiveValues: [],
                                            negativeValues: []
                                        };
                                    }

                                    // Store these per type
                                    var positiveValues = valuesPerStack[key].positiveValues;
                                    var negativeValues = valuesPerStack[key].negativeValues;

                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                        helpers.each(dataset.data, function (rawValue, index) {
                                            var value = +me.getRightValue(rawValue);
                                            if (isNaN(value) || meta.data[index].hidden) {
                                                return;
                                            }

                                            positiveValues[index] = positiveValues[index] || 0;
                                            negativeValues[index] = negativeValues[index] || 0;

                                            if (opts.relativePoints) {
                                                positiveValues[index] = 100;
                                            } else if (value < 0) {
                                                negativeValues[index] += value;
                                            } else {
                                                positiveValues[index] += value;
                                            }
                                        });
                                    }
                                });

                                helpers.each(valuesPerStack, function (valuesForType) {
                                    var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
                                    var minVal = helpers.min(values);
                                    var maxVal = helpers.max(values);
                                    me.min = me.min === null ? minVal : Math.min(me.min, minVal);
                                    me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
                                });

                            } else {
                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                        helpers.each(dataset.data, function (rawValue, index) {
                                            var value = +me.getRightValue(rawValue);
                                            if (isNaN(value) || meta.data[index].hidden) {
                                                return;
                                            }

                                            if (me.min === null) {
                                                me.min = value;
                                            } else if (value < me.min) {
                                                me.min = value;
                                            }

                                            if (me.max === null) {
                                                me.max = value;
                                            } else if (value > me.max) {
                                                me.max = value;
                                            }
                                        });
                                    }
                                });
                            }

                            me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
                            me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;

                            // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
                            this.handleTickRangeOptions();
                        },
                        getTickLimit: function () {
                            var maxTicks;
                            var me = this;
                            var tickOpts = me.options.ticks;

                            if (me.isHorizontal()) {
                                maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
                            } else {
                                // The factor of 2 used to scale the font size has been experimentally determined.
                                var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, defaults.global.defaultFontSize);
                                maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
                            }

                            return maxTicks;
                        },
                        // Called after the ticks are built. We need
                        handleDirectionalChanges: function () {
                            if (!this.isHorizontal()) {
                                // We are in a vertical orientation. The top value is the highest. So reverse the array
                                this.ticks.reverse();
                            }
                        },
                        getLabelForIndex: function (index, datasetIndex) {
                            return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                        },
                        // Utils
                        getPixelForValue: function (value) {
                            // This must be called after fit has been run so that
                            // this.left, this.top, this.right, and this.bottom have been defined
                            var me = this;
                            var start = me.start;

                            var rightValue = +me.getRightValue(value);
                            var pixel;
                            var range = me.end - start;

                            if (me.isHorizontal()) {
                                pixel = me.left + (me.width / range * (rightValue - start));
                            } else {
                                pixel = me.bottom - (me.height / range * (rightValue - start));
                            }
                            return pixel;
                        },
                        getValueForPixel: function (pixel) {
                            var me = this;
                            var isHorizontal = me.isHorizontal();
                            var innerDimension = isHorizontal ? me.width : me.height;
                            var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
                            return me.start + ((me.end - me.start) * offset);
                        },
                        getPixelForTick: function (index) {
                            return this.getPixelForValue(this.ticksAsNumbers[index]);
                        }
                    });
                    Chart.scaleService.registerScaleType('linear', LinearScale, defaultConfig);

                };

            }, {"25": 25, "34": 34, "45": 45}], 55: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);

                /**
                 * Generate a set of linear ticks
                 * @param generationOptions the options used to generate the ticks
                 * @param dataRange the range of the data
                 * @returns {Array<Number>} array of tick values
                 */
                function generateTicks(generationOptions, dataRange) {
                    var ticks = [];
                    // To get a "nice" value for the tick spacing, we will use the appropriately named
                    // "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
                    // for details.

                    var spacing;
                    if (generationOptions.stepSize && generationOptions.stepSize > 0) {
                        spacing = generationOptions.stepSize;
                    } else {
                        var niceRange = helpers.niceNum(dataRange.max - dataRange.min, false);
                        spacing = helpers.niceNum(niceRange / (generationOptions.maxTicks - 1), true);
                    }
                    var niceMin = Math.floor(dataRange.min / spacing) * spacing;
                    var niceMax = Math.ceil(dataRange.max / spacing) * spacing;

                    // If min, max and stepSize is set and they make an evenly spaced scale use it.
                    if (generationOptions.min && generationOptions.max && generationOptions.stepSize) {
                        // If very close to our whole number, use it.
                        if (helpers.almostWhole((generationOptions.max - generationOptions.min) / generationOptions.stepSize, spacing / 1000)) {
                            niceMin = generationOptions.min;
                            niceMax = generationOptions.max;
                        }
                    }

                    var numSpaces = (niceMax - niceMin) / spacing;
                    // If very close to our rounded value, use it.
                    if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
                        numSpaces = Math.round(numSpaces);
                    } else {
                        numSpaces = Math.ceil(numSpaces);
                    }

                    var precision = 1;
                    if (spacing < 1) {
                        precision = Math.pow(10, spacing.toString().length - 2);
                        niceMin = Math.round(niceMin * precision) / precision;
                        niceMax = Math.round(niceMax * precision) / precision;
                    }
                    ticks.push(generationOptions.min !== undefined ? generationOptions.min : niceMin);
                    for (var j = 1; j < numSpaces; ++j) {
                        ticks.push(Math.round((niceMin + j * spacing) * precision) / precision);
                    }
                    ticks.push(generationOptions.max !== undefined ? generationOptions.max : niceMax);

                    return ticks;
                }


                module.exports = function (Chart) {

                    var noop = helpers.noop;

                    Chart.LinearScaleBase = Chart.Scale.extend({
                        getRightValue: function (value) {
                            if (typeof value === 'string') {
                                return +value;
                            }
                            return Chart.Scale.prototype.getRightValue.call(this, value);
                        },

                        handleTickRangeOptions: function () {
                            var me = this;
                            var opts = me.options;
                            var tickOpts = opts.ticks;

                            // If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
                            // do nothing since that would make the chart weird. If the user really wants a weird chart
                            // axis, they can manually override it
                            if (tickOpts.beginAtZero) {
                                var minSign = helpers.sign(me.min);
                                var maxSign = helpers.sign(me.max);

                                if (minSign < 0 && maxSign < 0) {
                                    // move the top up to 0
                                    me.max = 0;
                                } else if (minSign > 0 && maxSign > 0) {
                                    // move the bottom down to 0
                                    me.min = 0;
                                }
                            }

                            var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
                            var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;

                            if (tickOpts.min !== undefined) {
                                me.min = tickOpts.min;
                            } else if (tickOpts.suggestedMin !== undefined) {
                                if (me.min === null) {
                                    me.min = tickOpts.suggestedMin;
                                } else {
                                    me.min = Math.min(me.min, tickOpts.suggestedMin);
                                }
                            }

                            if (tickOpts.max !== undefined) {
                                me.max = tickOpts.max;
                            } else if (tickOpts.suggestedMax !== undefined) {
                                if (me.max === null) {
                                    me.max = tickOpts.suggestedMax;
                                } else {
                                    me.max = Math.max(me.max, tickOpts.suggestedMax);
                                }
                            }

                            if (setMin !== setMax) {
                                // We set the min or the max but not both.
                                // So ensure that our range is good
                                // Inverted or 0 length range can happen when
                                // ticks.min is set, and no datasets are visible
                                if (me.min >= me.max) {
                                    if (setMin) {
                                        me.max = me.min + 1;
                                    } else {
                                        me.min = me.max - 1;
                                    }
                                }
                            }

                            if (me.min === me.max) {
                                me.max++;

                                if (!tickOpts.beginAtZero) {
                                    me.min--;
                                }
                            }
                        },
                        getTickLimit: noop,
                        handleDirectionalChanges: noop,

                        buildTicks: function () {
                            var me = this;
                            var opts = me.options;
                            var tickOpts = opts.ticks;

                            // Figure out what the max number of ticks we can support it is based on the size of
                            // the axis area. For now, we say that the minimum tick spacing in pixels must be 50
                            // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
                            // the graph. Make sure we always have at least 2 ticks
                            var maxTicks = me.getTickLimit();
                            maxTicks = Math.max(2, maxTicks);

                            var numericGeneratorOptions = {
                                maxTicks: maxTicks,
                                min: tickOpts.min,
                                max: tickOpts.max,
                                stepSize: helpers.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
                            };
                            var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);

                            me.handleDirectionalChanges();

                            // At this point, we need to update our max and min given the tick values since we have expanded the
                            // range of the scale
                            me.max = helpers.max(ticks);
                            me.min = helpers.min(ticks);

                            if (tickOpts.reverse) {
                                ticks.reverse();

                                me.start = me.max;
                                me.end = me.min;
                            } else {
                                me.start = me.min;
                                me.end = me.max;
                            }
                        },
                        convertTicksToLabels: function () {
                            var me = this;
                            me.ticksAsNumbers = me.ticks.slice();
                            me.zeroLineIndex = me.ticks.indexOf(0);

                            Chart.Scale.prototype.convertTicksToLabels.call(me);
                        }
                    });
                };

            }, {"45": 45}], 56: [function (require, module, exports) {
                'use strict';

                var helpers = require(45);
                var Ticks = require(34);

                /**
                 * Generate a set of logarithmic ticks
                 * @param generationOptions the options used to generate the ticks
                 * @param dataRange the range of the data
                 * @returns {Array<Number>} array of tick values
                 */
                function generateTicks(generationOptions, dataRange) {
                    var ticks = [];
                    var valueOrDefault = helpers.valueOrDefault;

                    // Figure out what the max number of ticks we can support it is based on the size of
                    // the axis area. For now, we say that the minimum tick spacing in pixels must be 50
                    // We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
                    // the graph
                    var tickVal = valueOrDefault(generationOptions.min, Math.pow(10, Math.floor(helpers.log10(dataRange.min))));

                    var endExp = Math.floor(helpers.log10(dataRange.max));
                    var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
                    var exp, significand;

                    if (tickVal === 0) {
                        exp = Math.floor(helpers.log10(dataRange.minNotZero));
                        significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));

                        ticks.push(tickVal);
                        tickVal = significand * Math.pow(10, exp);
                    } else {
                        exp = Math.floor(helpers.log10(tickVal));
                        significand = Math.floor(tickVal / Math.pow(10, exp));
                    }
                    var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;

                    do {
                        ticks.push(tickVal);

                        ++significand;
                        if (significand === 10) {
                            significand = 1;
                            ++exp;
                            precision = exp >= 0 ? 1 : precision;
                        }

                        tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
                    } while (exp < endExp || (exp === endExp && significand < endSignificand));

                    var lastTick = valueOrDefault(generationOptions.max, tickVal);
                    ticks.push(lastTick);

                    return ticks;
                }


                module.exports = function (Chart) {

                    var defaultConfig = {
                        position: 'left',

                        // label settings
                        ticks: {
                            callback: Ticks.formatters.logarithmic
                        }
                    };

                    var LogarithmicScale = Chart.Scale.extend({
                        determineDataLimits: function () {
                            var me = this;
                            var opts = me.options;
                            var chart = me.chart;
                            var data = chart.data;
                            var datasets = data.datasets;
                            var isHorizontal = me.isHorizontal();
                            function IDMatches(meta) {
                                return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
                            }

                            // Calculate Range
                            me.min = null;
                            me.max = null;
                            me.minNotZero = null;

                            var hasStacks = opts.stacked;
                            if (hasStacks === undefined) {
                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    if (hasStacks) {
                                        return;
                                    }

                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
                                            meta.stack !== undefined) {
                                        hasStacks = true;
                                    }
                                });
                            }

                            if (opts.stacked || hasStacks) {
                                var valuesPerStack = {};

                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    var key = [
                                        meta.type,
                                        // we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
                                        ((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
                                        meta.stack
                                    ].join('.');

                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                        if (valuesPerStack[key] === undefined) {
                                            valuesPerStack[key] = [];
                                        }

                                        helpers.each(dataset.data, function (rawValue, index) {
                                            var values = valuesPerStack[key];
                                            var value = +me.getRightValue(rawValue);
                                            // invalid, hidden and negative values are ignored
                                            if (isNaN(value) || meta.data[index].hidden || value < 0) {
                                                return;
                                            }
                                            values[index] = values[index] || 0;
                                            values[index] += value;
                                        });
                                    }
                                });

                                helpers.each(valuesPerStack, function (valuesForType) {
                                    if (valuesForType.length > 0) {
                                        var minVal = helpers.min(valuesForType);
                                        var maxVal = helpers.max(valuesForType);
                                        me.min = me.min === null ? minVal : Math.min(me.min, minVal);
                                        me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
                                    }
                                });

                            } else {
                                helpers.each(datasets, function (dataset, datasetIndex) {
                                    var meta = chart.getDatasetMeta(datasetIndex);
                                    if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
                                        helpers.each(dataset.data, function (rawValue, index) {
                                            var value = +me.getRightValue(rawValue);
                                            // invalid, hidden and negative values are ignored
                                            if (isNaN(value) || meta.data[index].hidden || value < 0) {
                                                return;
                                            }

                                            if (me.min === null) {
                                                me.min = value;
                                            } else if (value < me.min) {
                                                me.min = value;
                                            }

                                            if (me.max === null) {
                                                me.max = value;
                                            } else if (value > me.max) {
                                                me.max = value;
                                            }

                                            if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
                                                me.minNotZero = value;
                                            }
                                        });
                                    }
                                });
                            }

                            // Common base implementation to handle ticks.min, ticks.max
                            this.handleTickRangeOptions();
                        },
                        handleTickRangeOptions: function () {
                            var me = this;
                            var opts = me.options;
                            var tickOpts = opts.ticks;
                            var valueOrDefault = helpers.valueOrDefault;
                            var DEFAULT_MIN = 1;
                            var DEFAULT_MAX = 10;

                            me.min = valueOrDefault(tickOpts.min, me.min);
                            me.max = valueOrDefault(tickOpts.max, me.max);

                            if (me.min === me.max) {
                                if (me.min !== 0 && me.min !== null) {
                                    me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
                                    me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
                                } else {
                                    me.min = DEFAULT_MIN;
                                    me.max = DEFAULT_MAX;
                                }
                            }
                            if (me.min === null) {
                                me.min = Math.pow(10, Math.floor(helpers.log10(me.max)) - 1);
                            }
                            if (me.max === null) {
                                me.max = me.min !== 0
                                        ? Math.pow(10, Math.floor(helpers.log10(me.min)) + 1)
                                        : DEFAULT_MAX;
                            }
                            if (me.minNotZero === null) {
                                if (me.min > 0) {
                                    me.minNotZero = me.min;
                                } else if (me.max < 1) {
                                    me.minNotZero = Math.pow(10, Math.floor(helpers.log10(me.max)));
                                } else {
                                    me.minNotZero = DEFAULT_MIN;
                                }
                            }
                        },
                        buildTicks: function () {
                            var me = this;
                            var opts = me.options;
                            var tickOpts = opts.ticks;
                            var reverse = !me.isHorizontal();

                            var generationOptions = {
                                min: tickOpts.min,
                                max: tickOpts.max
                            };
                            var ticks = me.ticks = generateTicks(generationOptions, me);

                            // At this point, we need to update our max and min given the tick values since we have expanded the
                            // range of the scale
                            me.max = helpers.max(ticks);
                            me.min = helpers.min(ticks);

                            if (tickOpts.reverse) {
                                reverse = !reverse;
                                me.start = me.max;
                                me.end = me.min;
                            } else {
                                me.start = me.min;
                                me.end = me.max;
                            }
                            if (reverse) {
                                ticks.reverse();
                            }
                        },
                        convertTicksToLabels: function () {
                            this.tickValues = this.ticks.slice();

                            Chart.Scale.prototype.convertTicksToLabels.call(this);
                        },
                        // Get the correct tooltip label
                        getLabelForIndex: function (index, datasetIndex) {
                            return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                        },
                        getPixelForTick: function (index) {
                            return this.getPixelForValue(this.tickValues[index]);
                        },
                        /**
                         * Returns the value of the first tick.
                         * @param {Number} value - The minimum not zero value.
                         * @return {Number} The first tick value.
                         * @private
                         */
                        _getFirstTickValue: function (value) {
                            var exp = Math.floor(helpers.log10(value));
                            var significand = Math.floor(value / Math.pow(10, exp));

                            return significand * Math.pow(10, exp);
                        },
                        getPixelForValue: function (value) {
                            var me = this;
                            var reverse = me.options.ticks.reverse;
                            var log10 = helpers.log10;
                            var firstTickValue = me._getFirstTickValue(me.minNotZero);
                            var offset = 0;
                            var innerDimension, pixel, start, end, sign;

                            value = +me.getRightValue(value);
                            if (reverse) {
                                start = me.end;
                                end = me.start;
                                sign = -1;
                            } else {
                                start = me.start;
                                end = me.end;
                                sign = 1;
                            }
                            if (me.isHorizontal()) {
                                innerDimension = me.width;
                                pixel = reverse ? me.right : me.left;
                            } else {
                                innerDimension = me.height;
                                sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
                                pixel = reverse ? me.top : me.bottom;
                            }
                            if (value !== start) {
                                if (start === 0) { // include zero tick
                                    offset = helpers.getValueOrDefault(
                                            me.options.ticks.fontSize,
                                            Chart.defaults.global.defaultFontSize
                                            );
                                    innerDimension -= offset;
                                    start = firstTickValue;
                                }
                                if (value !== 0) {
                                    offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
                                }
                                pixel += sign * offset;
                            }
                            return pixel;
                        },
                        getValueForPixel: function (pixel) {
                            var me = this;
                            var reverse = me.options.ticks.reverse;
                            var log10 = helpers.log10;
                            var firstTickValue = me._getFirstTickValue(me.minNotZero);
                            var innerDimension, start, end, value;

                            if (reverse) {
                                start = me.end;
                                end = me.start;
                            } else {
                                start = me.start;
                                end = me.end;
                            }
                            if (me.isHorizontal()) {
                                innerDimension = me.width;
                                value = reverse ? me.right - pixel : pixel - me.left;
                            } else {
                                innerDimension = me.height;
                                value = reverse ? pixel - me.top : me.bottom - pixel;
                            }
                            if (value !== start) {
                                if (start === 0) { // include zero tick
                                    var offset = helpers.getValueOrDefault(
                                            me.options.ticks.fontSize,
                                            Chart.defaults.global.defaultFontSize
                                            );
                                    value -= offset;
                                    innerDimension -= offset;
                                    start = firstTickValue;
                                }
                                value *= log10(end) - log10(start);
                                value /= innerDimension;
                                value = Math.pow(10, log10(start) + value);
                            }
                            return value;
                        }
                    });
                    Chart.scaleService.registerScaleType('logarithmic', LogarithmicScale, defaultConfig);

                };

            }, {"34": 34, "45": 45}], 57: [function (require, module, exports) {
                'use strict';

                var defaults = require(25);
                var helpers = require(45);
                var Ticks = require(34);

                module.exports = function (Chart) {

                    var globalDefaults = defaults.global;

                    var defaultConfig = {
                        display: true,

                        // Boolean - Whether to animate scaling the chart from the centre
                        animate: true,
                        position: 'chartArea',

                        angleLines: {
                            display: true,
                            color: 'rgba(0, 0, 0, 0.1)',
                            lineWidth: 1
                        },

                        gridLines: {
                            circular: false
                        },

                        // label settings
                        ticks: {
                            // Boolean - Show a backdrop to the scale label
                            showLabelBackdrop: true,

                            // String - The colour of the label backdrop
                            backdropColor: 'rgba(255,255,255,0.75)',

                            // Number - The backdrop padding above & below the label in pixels
                            backdropPaddingY: 2,

                            // Number - The backdrop padding to the side of the label in pixels
                            backdropPaddingX: 2,

                            callback: Ticks.formatters.linear
                        },

                        pointLabels: {
                            // Boolean - if true, show point labels
                            display: true,

                            // Number - Point label font size in pixels
                            fontSize: 10,

                            // Function - Used to convert point labels
                            callback: function (label) {
                                return label;
                            }
                        }
                    };

                    function getValueCount(scale) {
                        var opts = scale.options;
                        return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
                    }

                    function getPointLabelFontOptions(scale) {
                        var pointLabelOptions = scale.options.pointLabels;
                        var fontSize = helpers.valueOrDefault(pointLabelOptions.fontSize, globalDefaults.defaultFontSize);
                        var fontStyle = helpers.valueOrDefault(pointLabelOptions.fontStyle, globalDefaults.defaultFontStyle);
                        var fontFamily = helpers.valueOrDefault(pointLabelOptions.fontFamily, globalDefaults.defaultFontFamily);
                        var font = helpers.fontString(fontSize, fontStyle, fontFamily);

                        return {
                            size: fontSize,
                            style: fontStyle,
                            family: fontFamily,
                            font: font
                        };
                    }

                    function measureLabelSize(ctx, fontSize, label) {
                        if (helpers.isArray(label)) {
                            return {
                                w: helpers.longestText(ctx, ctx.font, label),
                                h: (label.length * fontSize) + ((label.length - 1) * 1.5 * fontSize)
                            };
                        }

                        return {
                            w: ctx.measureText(label).width,
                            h: fontSize
                        };
                    }

                    function determineLimits(angle, pos, size, min, max) {
                        if (angle === min || angle === max) {
                            return {
                                start: pos - (size / 2),
                                end: pos + (size / 2)
                            };
                        } else if (angle < min || angle > max) {
                            return {
                                start: pos - size - 5,
                                end: pos
                            };
                        }

                        return {
                            start: pos,
                            end: pos + size + 5
                        };
                    }

                    /**
                     * Helper function to fit a radial linear scale with point labels
                     */
                    function fitWithPointLabels(scale) {
                        /*
                         * Right, this is really confusing and there is a lot of maths going on here
                         * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
                         *
                         * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
                         *
                         * Solution:
                         *
                         * We assume the radius of the polygon is half the size of the canvas at first
                         * at each index we check if the text overlaps.
                         *
                         * Where it does, we store that angle and that index.
                         *
                         * After finding the largest index and angle we calculate how much we need to remove
                         * from the shape radius to move the point inwards by that x.
                         *
                         * We average the left and right distances to get the maximum shape radius that can fit in the box
                         * along with labels.
                         *
                         * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
                         * on each side, removing that from the size, halving it and adding the left x protrusion width.
                         *
                         * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
                         * and position it in the most space efficient manner
                         *
                         * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
                         */

                        var plFont = getPointLabelFontOptions(scale);

                        // Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
                        // Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
                        var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
                        var furthestLimits = {
                            r: scale.width,
                            l: 0,
                            t: scale.height,
                            b: 0
                        };
                        var furthestAngles = {};
                        var i, textSize, pointPosition;

                        scale.ctx.font = plFont.font;
                        scale._pointLabelSizes = [];

                        var valueCount = getValueCount(scale);
                        for (i = 0; i < valueCount; i++) {
                            pointPosition = scale.getPointPosition(i, largestPossibleRadius);
                            textSize = measureLabelSize(scale.ctx, plFont.size, scale.pointLabels[i] || '');
                            scale._pointLabelSizes[i] = textSize;

                            // Add quarter circle to make degree 0 mean top of circle
                            var angleRadians = scale.getIndexAngle(i);
                            var angle = helpers.toDegrees(angleRadians) % 360;
                            var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
                            var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);

                            if (hLimits.start < furthestLimits.l) {
                                furthestLimits.l = hLimits.start;
                                furthestAngles.l = angleRadians;
                            }

                            if (hLimits.end > furthestLimits.r) {
                                furthestLimits.r = hLimits.end;
                                furthestAngles.r = angleRadians;
                            }

                            if (vLimits.start < furthestLimits.t) {
                                furthestLimits.t = vLimits.start;
                                furthestAngles.t = angleRadians;
                            }

                            if (vLimits.end > furthestLimits.b) {
                                furthestLimits.b = vLimits.end;
                                furthestAngles.b = angleRadians;
                            }
                        }

                        scale.setReductions(largestPossibleRadius, furthestLimits, furthestAngles);
                    }

                    /**
                     * Helper function to fit a radial linear scale with no point labels
                     */
                    function fit(scale) {
                        var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
                        scale.drawingArea = Math.round(largestPossibleRadius);
                        scale.setCenterPoint(0, 0, 0, 0);
                    }

                    function getTextAlignForAngle(angle) {
                        if (angle === 0 || angle === 180) {
                            return 'center';
                        } else if (angle < 180) {
                            return 'left';
                        }

                        return 'right';
                    }

                    function fillText(ctx, text, position, fontSize) {
                        if (helpers.isArray(text)) {
                            var y = position.y;
                            var spacing = 1.5 * fontSize;

                            for (var i = 0; i < text.length; ++i) {
                                ctx.fillText(text[i], position.x, y);
                                y += spacing;
                            }
                        } else {
                            ctx.fillText(text, position.x, position.y);
                        }
                    }

                    function adjustPointPositionForLabelHeight(angle, textSize, position) {
                        if (angle === 90 || angle === 270) {
                            position.y -= (textSize.h / 2);
                        } else if (angle > 270 || angle < 90) {
                            position.y -= textSize.h;
                        }
                    }

                    function drawPointLabels(scale) {
                        var ctx = scale.ctx;
                        var opts = scale.options;
                        var angleLineOpts = opts.angleLines;
                        var pointLabelOpts = opts.pointLabels;

                        ctx.lineWidth = angleLineOpts.lineWidth;
                        ctx.strokeStyle = angleLineOpts.color;

                        var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);

                        // Point Label Font
                        var plFont = getPointLabelFontOptions(scale);

                        ctx.textBaseline = 'top';

                        for (var i = getValueCount(scale) - 1; i >= 0; i--) {
                            if (angleLineOpts.display) {
                                var outerPosition = scale.getPointPosition(i, outerDistance);
                                ctx.beginPath();
                                ctx.moveTo(scale.xCenter, scale.yCenter);
                                ctx.lineTo(outerPosition.x, outerPosition.y);
                                ctx.stroke();
                                ctx.closePath();
                            }

                            if (pointLabelOpts.display) {
                                // Extra 3px out for some label spacing
                                var pointLabelPosition = scale.getPointPosition(i, outerDistance + 5);

                                // Keep this in loop since we may support array properties here
                                var pointLabelFontColor = helpers.valueAtIndexOrDefault(pointLabelOpts.fontColor, i, globalDefaults.defaultFontColor);
                                ctx.font = plFont.font;
                                ctx.fillStyle = pointLabelFontColor;

                                var angleRadians = scale.getIndexAngle(i);
                                var angle = helpers.toDegrees(angleRadians);
                                ctx.textAlign = getTextAlignForAngle(angle);
                                adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
                                fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.size);
                            }
                        }
                    }

                    function drawRadiusLine(scale, gridLineOpts, radius, index) {
                        var ctx = scale.ctx;
                        ctx.strokeStyle = helpers.valueAtIndexOrDefault(gridLineOpts.color, index - 1);
                        ctx.lineWidth = helpers.valueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);

                        if (scale.options.gridLines.circular) {
                            // Draw circular arcs between the points
                            ctx.beginPath();
                            ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
                            ctx.closePath();
                            ctx.stroke();
                        } else {
                            // Draw straight lines connecting each index
                            var valueCount = getValueCount(scale);

                            if (valueCount === 0) {
                                return;
                            }

                            ctx.beginPath();
                            var pointPosition = scale.getPointPosition(0, radius);
                            ctx.moveTo(pointPosition.x, pointPosition.y);

                            for (var i = 1; i < valueCount; i++) {
                                pointPosition = scale.getPointPosition(i, radius);
                                ctx.lineTo(pointPosition.x, pointPosition.y);
                            }

                            ctx.closePath();
                            ctx.stroke();
                        }
                    }

                    function numberOrZero(param) {
                        return helpers.isNumber(param) ? param : 0;
                    }

                    var LinearRadialScale = Chart.LinearScaleBase.extend({
                        setDimensions: function () {
                            var me = this;
                            var opts = me.options;
                            var tickOpts = opts.ticks;
                            // Set the unconstrained dimension before label rotation
                            me.width = me.maxWidth;
                            me.height = me.maxHeight;
                            me.xCenter = Math.round(me.width / 2);
                            me.yCenter = Math.round(me.height / 2);

                            var minSize = helpers.min([me.height, me.width]);
                            var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                            me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
                        },
                        determineDataLimits: function () {
                            var me = this;
                            var chart = me.chart;
                            var min = Number.POSITIVE_INFINITY;
                            var max = Number.NEGATIVE_INFINITY;

                            helpers.each(chart.data.datasets, function (dataset, datasetIndex) {
                                if (chart.isDatasetVisible(datasetIndex)) {
                                    var meta = chart.getDatasetMeta(datasetIndex);

                                    helpers.each(dataset.data, function (rawValue, index) {
                                        var value = +me.getRightValue(rawValue);
                                        if (isNaN(value) || meta.data[index].hidden) {
                                            return;
                                        }

                                        min = Math.min(value, min);
                                        max = Math.max(value, max);
                                    });
                                }
                            });

                            me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
                            me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);

                            // Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
                            me.handleTickRangeOptions();
                        },
                        getTickLimit: function () {
                            var tickOpts = this.options.ticks;
                            var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                            return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
                        },
                        convertTicksToLabels: function () {
                            var me = this;

                            Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);

                            // Point labels
                            me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
                        },
                        getLabelForIndex: function (index, datasetIndex) {
                            return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
                        },
                        fit: function () {
                            if (this.options.pointLabels.display) {
                                fitWithPointLabels(this);
                            } else {
                                fit(this);
                            }
                        },
                        /**
                         * Set radius reductions and determine new radius and center point
                         * @private
                         */
                        setReductions: function (largestPossibleRadius, furthestLimits, furthestAngles) {
                            var me = this;
                            var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
                            var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
                            var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
                            var radiusReductionBottom = -Math.max(furthestLimits.b - me.height, 0) / Math.cos(furthestAngles.b);

                            radiusReductionLeft = numberOrZero(radiusReductionLeft);
                            radiusReductionRight = numberOrZero(radiusReductionRight);
                            radiusReductionTop = numberOrZero(radiusReductionTop);
                            radiusReductionBottom = numberOrZero(radiusReductionBottom);

                            me.drawingArea = Math.min(
                                    Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
                                    Math.round(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
                            me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
                        },
                        setCenterPoint: function (leftMovement, rightMovement, topMovement, bottomMovement) {
                            var me = this;
                            var maxRight = me.width - rightMovement - me.drawingArea;
                            var maxLeft = leftMovement + me.drawingArea;
                            var maxTop = topMovement + me.drawingArea;
                            var maxBottom = me.height - bottomMovement - me.drawingArea;

                            me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
                            me.yCenter = Math.round(((maxTop + maxBottom) / 2) + me.top);
                        },

                        getIndexAngle: function (index) {
                            var angleMultiplier = (Math.PI * 2) / getValueCount(this);
                            var startAngle = this.chart.options && this.chart.options.startAngle ?
                                    this.chart.options.startAngle :
                                    0;

                            var startAngleRadians = startAngle * Math.PI * 2 / 360;

                            // Start from the top instead of right, so remove a quarter of the circle
                            return index * angleMultiplier + startAngleRadians;
                        },
                        getDistanceFromCenterForValue: function (value) {
                            var me = this;

                            if (value === null) {
                                return 0; // null always in center
                            }

                            // Take into account half font size + the yPadding of the top value
                            var scalingFactor = me.drawingArea / (me.max - me.min);
                            if (me.options.ticks.reverse) {
                                return (me.max - value) * scalingFactor;
                            }
                            return (value - me.min) * scalingFactor;
                        },
                        getPointPosition: function (index, distanceFromCenter) {
                            var me = this;
                            var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
                            return {
                                x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
                                y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
                            };
                        },
                        getPointPositionForValue: function (index, value) {
                            return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
                        },

                        getBasePosition: function () {
                            var me = this;
                            var min = me.min;
                            var max = me.max;

                            return me.getPointPositionForValue(0,
                                    me.beginAtZero ? 0 :
                                    min < 0 && max < 0 ? max :
                                    min > 0 && max > 0 ? min :
                                    0);
                        },

                        draw: function () {
                            var me = this;
                            var opts = me.options;
                            var gridLineOpts = opts.gridLines;
                            var tickOpts = opts.ticks;
                            var valueOrDefault = helpers.valueOrDefault;

                            if (opts.display) {
                                var ctx = me.ctx;
                                var startAngle = this.getIndexAngle(0);

                                // Tick Font
                                var tickFontSize = valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
                                var tickFontStyle = valueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
                                var tickFontFamily = valueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
                                var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);

                                helpers.each(me.ticks, function (label, index) {
                                    // Don't draw a centre value (if it is minimum)
                                    if (index > 0 || tickOpts.reverse) {
                                        var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);

                                        // Draw circular lines around the scale
                                        if (gridLineOpts.display && index !== 0) {
                                            drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
                                        }

                                        if (tickOpts.display) {
                                            var tickFontColor = valueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
                                            ctx.font = tickLabelFont;

                                            ctx.save();
                                            ctx.translate(me.xCenter, me.yCenter);
                                            ctx.rotate(startAngle);

                                            if (tickOpts.showLabelBackdrop) {
                                                var labelWidth = ctx.measureText(label).width;
                                                ctx.fillStyle = tickOpts.backdropColor;
                                                ctx.fillRect(
                                                        -labelWidth / 2 - tickOpts.backdropPaddingX,
                                                        -yCenterOffset - tickFontSize / 2 - tickOpts.backdropPaddingY,
                                                        labelWidth + tickOpts.backdropPaddingX * 2,
                                                        tickFontSize + tickOpts.backdropPaddingY * 2
                                                        );
                                            }

                                            ctx.textAlign = 'center';
                                            ctx.textBaseline = 'middle';
                                            ctx.fillStyle = tickFontColor;
                                            ctx.fillText(label, 0, -yCenterOffset);
                                            ctx.restore();
                                        }
                                    }
                                });

                                if (opts.angleLines.display || opts.pointLabels.display) {
                                    drawPointLabels(me);
                                }
                            }
                        }
                    });
                    Chart.scaleService.registerScaleType('radialLinear', LinearRadialScale, defaultConfig);

                };

            }, {"25": 25, "34": 34, "45": 45}], 58: [function (require, module, exports) {
                /* global window: false */
                'use strict';

                var moment = require(1);
                moment = typeof moment === 'function' ? moment : window.moment;

                var defaults = require(25);
                var helpers = require(45);

// Integer constants are from the ES6 spec.
                var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
                var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;

                var INTERVALS = {
                    millisecond: {
                        common: true,
                        size: 1,
                        steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
                    },
                    second: {
                        common: true,
                        size: 1000,
                        steps: [1, 2, 5, 10, 30]
                    },
                    minute: {
                        common: true,
                        size: 60000,
                        steps: [1, 2, 5, 10, 30]
                    },
                    hour: {
                        common: true,
                        size: 3600000,
                        steps: [1, 2, 3, 6, 12]
                    },
                    day: {
                        common: true,
                        size: 86400000,
                        steps: [1, 2, 5]
                    },
                    week: {
                        common: false,
                        size: 604800000,
                        steps: [1, 2, 3, 4]
                    },
                    month: {
                        common: true,
                        size: 2.628e9,
                        steps: [1, 2, 3]
                    },
                    quarter: {
                        common: false,
                        size: 7.884e9,
                        steps: [1, 2, 3, 4]
                    },
                    year: {
                        common: true,
                        size: 3.154e10
                    }
                };

                var UNITS = Object.keys(INTERVALS);

                function sorter(a, b) {
                    return a - b;
                }

                function arrayUnique(items) {
                    var hash = {};
                    var out = [];
                    var i, ilen, item;

                    for (i = 0, ilen = items.length; i < ilen; ++i) {
                        item = items[i];
                        if (!hash[item]) {
                            hash[item] = true;
                            out.push(item);
                        }
                    }

                    return out;
                }

                /**
                 * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
                 * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
                 * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
                 * extremity (left + width or top + height). Note that it would be more optimized to directly
                 * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
                 * to create the lookup table. The table ALWAYS contains at least two items: min and max.
                 *
                 * @param {Number[]} timestamps - timestamps sorted from lowest to highest.
                 * @param {String} distribution - If 'linear', timestamps will be spread linearly along the min
                 * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
                 * If 'series', timestamps will be positioned at the same distance from each other. In this
                 * case, only timestamps that break the time linearity are registered, meaning that in the
                 * best case, all timestamps are linear, the table contains only min and max.
                 */
                function buildLookupTable(timestamps, min, max, distribution) {
                    if (distribution === 'linear' || !timestamps.length) {
                        return [
                            {time: min, pos: 0},
                            {time: max, pos: 1}
                        ];
                    }

                    var table = [];
                    var items = [min];
                    var i, ilen, prev, curr, next;

                    for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
                        curr = timestamps[i];
                        if (curr > min && curr < max) {
                            items.push(curr);
                        }
                    }

                    items.push(max);

                    for (i = 0, ilen = items.length; i < ilen; ++i) {
                        next = items[i + 1];
                        prev = items[i - 1];
                        curr = items[i];

                        // only add points that breaks the scale linearity
                        if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
                            table.push({time: curr, pos: i / (ilen - 1)});
                        }
                    }

                    return table;
                }

// @see adapted from http://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
                function lookup(table, key, value) {
                    var lo = 0;
                    var hi = table.length - 1;
                    var mid, i0, i1;

                    while (lo >= 0 && lo <= hi) {
                        mid = (lo + hi) >> 1;
                        i0 = table[mid - 1] || null;
                        i1 = table[mid];

                        if (!i0) {
                            // given value is outside table (before first item)
                            return {lo: null, hi: i1};
                        } else if (i1[key] < value) {
                            lo = mid + 1;
                        } else if (i0[key] > value) {
                            hi = mid - 1;
                        } else {
                            return {lo: i0, hi: i1};
                        }
                    }

                    // given value is outside table (after last item)
                    return {lo: i1, hi: null};
                }

                /**
                 * Linearly interpolates the given source `value` using the table items `skey` values and
                 * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
                 * returns the position for a timestamp equal to 42. If value is out of bounds, values at
                 * index [0, 1] or [n - 1, n] are used for the interpolation.
                 */
                function interpolate(table, skey, sval, tkey) {
                    var range = lookup(table, skey, sval);

                    // Note: the lookup table ALWAYS contains at least 2 items (min and max)
                    var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
                    var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;

                    var span = next[skey] - prev[skey];
                    var ratio = span ? (sval - prev[skey]) / span : 0;
                    var offset = (next[tkey] - prev[tkey]) * ratio;

                    return prev[tkey] + offset;
                }

                /**
                 * Convert the given value to a moment object using the given time options.
                 * @see http://momentjs.com/docs/#/parsing/
                 */
                function momentify(value, options) {
                    var parser = options.parser;
                    var format = options.parser || options.format;

                    if (typeof parser === 'function') {
                        return parser(value);
                    }

                    if (typeof value === 'string' && typeof format === 'string') {
                        return moment(value, format);
                    }

                    if (!(value instanceof moment)) {
                        value = moment(value);
                    }

                    if (value.isValid()) {
                        return value;
                    }

                    // Labels are in an incompatible moment format and no `parser` has been provided.
                    // The user might still use the deprecated `format` option to convert his inputs.
                    if (typeof format === 'function') {
                        return format(value);
                    }

                    return value;
                }

                function parse(input, scale) {
                    if (helpers.isNullOrUndef(input)) {
                        return null;
                    }

                    var options = scale.options.time;
                    var value = momentify(scale.getRightValue(input), options);
                    if (!value.isValid()) {
                        return null;
                    }

                    if (options.round) {
                        value.startOf(options.round);
                    }

                    return value.valueOf();
                }

                /**
                 * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
                 * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
                 */
                function determineStepSize(min, max, unit, capacity) {
                    var range = max - min;
                    var interval = INTERVALS[unit];
                    var milliseconds = interval.size;
                    var steps = interval.steps;
                    var i, ilen, factor;

                    if (!steps) {
                        return Math.ceil(range / (capacity * milliseconds));
                    }

                    for (i = 0, ilen = steps.length; i < ilen; ++i) {
                        factor = steps[i];
                        if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
                            break;
                        }
                    }

                    return factor;
                }

                /**
                 * Figures out what unit results in an appropriate number of auto-generated ticks
                 */
                function determineUnitForAutoTicks(minUnit, min, max, capacity) {
                    var ilen = UNITS.length;
                    var i, interval, factor;

                    for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
                        interval = INTERVALS[UNITS[i]];
                        factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;

                        if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
                            return UNITS[i];
                        }
                    }

                    return UNITS[ilen - 1];
                }

                /**
                 * Figures out what unit to format a set of ticks with
                 */
                function determineUnitForFormatting(ticks, minUnit, min, max) {
                    var duration = moment.duration(moment(max).diff(moment(min)));
                    var ilen = UNITS.length;
                    var i, unit;

                    for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
                        unit = UNITS[i];
                        if (INTERVALS[unit].common && duration.as(unit) >= ticks.length) {
                            return unit;
                        }
                    }

                    return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
                }

                function determineMajorUnit(unit) {
                    for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
                        if (INTERVALS[UNITS[i]].common) {
                            return UNITS[i];
                        }
                    }
                }

                /**
                 * Generates a maximum of `capacity` timestamps between min and max, rounded to the
                 * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
                 * Important: this method can return ticks outside the min and max range, it's the
                 * responsibility of the calling code to clamp values if needed.
                 */
                function generate(min, max, capacity, options) {
                    var timeOpts = options.time;
                    var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
                    var major = determineMajorUnit(minor);
                    var stepSize = helpers.valueOrDefault(timeOpts.stepSize, timeOpts.unitStepSize);
                    var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
                    var majorTicksEnabled = options.ticks.major.enabled;
                    var interval = INTERVALS[minor];
                    var first = moment(min);
                    var last = moment(max);
                    var ticks = [];
                    var time;

                    if (!stepSize) {
                        stepSize = determineStepSize(min, max, minor, capacity);
                    }

                    // For 'week' unit, handle the first day of week option
                    if (weekday) {
                        first = first.isoWeekday(weekday);
                        last = last.isoWeekday(weekday);
                    }

                    // Align first/last ticks on unit
                    first = first.startOf(weekday ? 'day' : minor);
                    last = last.startOf(weekday ? 'day' : minor);

                    // Make sure that the last tick include max
                    if (last < max) {
                        last.add(1, minor);
                    }

                    time = moment(first);

                    if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
                        // Align the first tick on the previous `minor` unit aligned on the `major` unit:
                        // we first aligned time on the previous `major` unit then add the number of full
                        // stepSize there is between first and the previous major time.
                        time.startOf(major);
                        time.add(~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
                    }

                    for (; time < last; time.add(stepSize, minor)) {
                        ticks.push(+time);
                    }

                    ticks.push(+time);

                    return ticks;
                }

                /**
                 * Returns the right and left offsets from edges in the form of {left, right}.
                 * Offsets are added when the `offset` option is true.
                 */
                function computeOffsets(table, ticks, min, max, options) {
                    var left = 0;
                    var right = 0;
                    var upper, lower;

                    if (options.offset && ticks.length) {
                        if (!options.time.min) {
                            upper = ticks.length > 1 ? ticks[1] : max;
                            lower = ticks[0];
                            left = (
                                    interpolate(table, 'time', upper, 'pos') -
                                    interpolate(table, 'time', lower, 'pos')
                                    ) / 2;
                        }
                        if (!options.time.max) {
                            upper = ticks[ticks.length - 1];
                            lower = ticks.length > 1 ? ticks[ticks.length - 2] : min;
                            right = (
                                    interpolate(table, 'time', upper, 'pos') -
                                    interpolate(table, 'time', lower, 'pos')
                                    ) / 2;
                        }
                    }

                    return {left: left, right: right};
                }

                function ticksFromTimestamps(values, majorUnit) {
                    var ticks = [];
                    var i, ilen, value, major;

                    for (i = 0, ilen = values.length; i < ilen; ++i) {
                        value = values[i];
                        major = majorUnit ? value === +moment(value).startOf(majorUnit) : false;

                        ticks.push({
                            value: value,
                            major: major
                        });
                    }

                    return ticks;
                }

                function determineLabelFormat(data, timeOpts) {
                    var i, momentDate, hasTime;
                    var ilen = data.length;

                    // find the label with the most parts (milliseconds, minutes, etc.)
                    // format all labels with the same level of detail as the most specific label
                    for (i = 0; i < ilen; i++) {
                        momentDate = momentify(data[i], timeOpts);
                        if (momentDate.millisecond() !== 0) {
                            return 'MMM D, YYYY h:mm:ss.SSS a';
                        }
                        if (momentDate.second() !== 0 || momentDate.minute() !== 0 || momentDate.hour() !== 0) {
                            hasTime = true;
                        }
                    }
                    if (hasTime) {
                        return 'MMM D, YYYY h:mm:ss a';
                    }
                    return 'MMM D, YYYY';
                }

                module.exports = function (Chart) {

                    var defaultConfig = {
                        position: 'bottom',

                        /**
                         * Data distribution along the scale:
                         * - 'linear': data are spread according to their time (distances can vary),
                         * - 'series': data are spread at the same distance from each other.
                         * @see https://github.com/chartjs/Chart.js/pull/4507
                         * @since 2.7.0
                         */
                        distribution: 'linear',

                        /**
                         * Scale boundary strategy (bypassed by min/max time options)
                         * - `data`: make sure data are fully visible, ticks outside are removed
                         * - `ticks`: make sure ticks are fully visible, data outside are truncated
                         * @see https://github.com/chartjs/Chart.js/pull/4556
                         * @since 2.7.0
                         */
                        bounds: 'data',

                        time: {
                            parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
                            format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
                            unit: false, // false == automatic or override with week, month, year, etc.
                            round: false, // none, or override with week, month, year, etc.
                            displayFormat: false, // DEPRECATED
                            isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
                            minUnit: 'millisecond',

                            // defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
                            displayFormats: {
                                millisecond: 'h:mm:ss.SSS a', // 11:20:01.123 AM,
                                second: 'h:mm:ss a', // 11:20:01 AM
                                minute: 'h:mm a', // 11:20 AM
                                hour: 'hA', // 5PM
                                day: 'MMM D', // Sep 4
                                week: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
                                month: 'MMM YYYY', // Sept 2015
                                quarter: '[Q]Q - YYYY', // Q3
                                year: 'YYYY' // 2015
                            },
                        },
                        ticks: {
                            autoSkip: false,

                            /**
                             * Ticks generation input values:
                             * - 'auto': generates "optimal" ticks based on scale size and time options.
                             * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
                             * - 'labels': generates ticks from user given `data.labels` values ONLY.
                             * @see https://github.com/chartjs/Chart.js/pull/4507
                             * @since 2.7.0
                             */
                            source: 'auto',

                            major: {
                                enabled: false
                            }
                        }
                    };

                    var TimeScale = Chart.Scale.extend({
                        initialize: function () {
                            if (!moment) {
                                throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
                            }

                            this.mergeTicksOptions();

                            Chart.Scale.prototype.initialize.call(this);
                        },

                        update: function () {
                            var me = this;
                            var options = me.options;

                            // DEPRECATIONS: output a message only one time per update
                            if (options.time && options.time.format) {
                                console.warn('options.time.format is deprecated and replaced by options.time.parser.');
                            }

                            return Chart.Scale.prototype.update.apply(me, arguments);
                        },

                        /**
                         * Allows data to be referenced via 't' attribute
                         */
                        getRightValue: function (rawValue) {
                            if (rawValue && rawValue.t !== undefined) {
                                rawValue = rawValue.t;
                            }
                            return Chart.Scale.prototype.getRightValue.call(this, rawValue);
                        },

                        determineDataLimits: function () {
                            var me = this;
                            var chart = me.chart;
                            var timeOpts = me.options.time;
                            var unit = timeOpts.unit || 'day';
                            var min = MAX_INTEGER;
                            var max = MIN_INTEGER;
                            var timestamps = [];
                            var datasets = [];
                            var labels = [];
                            var i, j, ilen, jlen, data, timestamp;

                            // Convert labels to timestamps
                            for (i = 0, ilen = chart.data.labels.length; i < ilen; ++i) {
                                labels.push(parse(chart.data.labels[i], me));
                            }

                            // Convert data to timestamps
                            for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
                                if (chart.isDatasetVisible(i)) {
                                    data = chart.data.datasets[i].data;

                                    // Let's consider that all data have the same format.
                                    if (helpers.isObject(data[0])) {
                                        datasets[i] = [];

                                        for (j = 0, jlen = data.length; j < jlen; ++j) {
                                            timestamp = parse(data[j], me);
                                            timestamps.push(timestamp);
                                            datasets[i][j] = timestamp;
                                        }
                                    } else {
                                        timestamps.push.apply(timestamps, labels);
                                        datasets[i] = labels.slice(0);
                                    }
                                } else {
                                    datasets[i] = [];
                                }
                            }

                            if (labels.length) {
                                // Sort labels **after** data have been converted
                                labels = arrayUnique(labels).sort(sorter);
                                min = Math.min(min, labels[0]);
                                max = Math.max(max, labels[labels.length - 1]);
                            }

                            if (timestamps.length) {
                                timestamps = arrayUnique(timestamps).sort(sorter);
                                min = Math.min(min, timestamps[0]);
                                max = Math.max(max, timestamps[timestamps.length - 1]);
                            }

                            min = parse(timeOpts.min, me) || min;
                            max = parse(timeOpts.max, me) || max;

                            // In case there is no valid min/max, set limits based on unit time option
                            min = min === MAX_INTEGER ? +moment().startOf(unit) : min;
                            max = max === MIN_INTEGER ? +moment().endOf(unit) + 1 : max;

                            // Make sure that max is strictly higher than min (required by the lookup table)
                            me.min = Math.min(min, max);
                            me.max = Math.max(min + 1, max);

                            // PRIVATE
                            me._horizontal = me.isHorizontal();
                            me._table = [];
                            me._timestamps = {
                                data: timestamps,
                                datasets: datasets,
                                labels: labels
                            };
                        },

                        buildTicks: function () {
                            var me = this;
                            var min = me.min;
                            var max = me.max;
                            var options = me.options;
                            var timeOpts = options.time;
                            var timestamps = [];
                            var ticks = [];
                            var i, ilen, timestamp;

                            switch (options.ticks.source) {
                                case 'data':
                                    timestamps = me._timestamps.data;
                                    break;
                                case 'labels':
                                    timestamps = me._timestamps.labels;
                                    break;
                                case 'auto':
                                default:
                                    timestamps = generate(min, max, me.getLabelCapacity(min), options);
                            }

                            if (options.bounds === 'ticks' && timestamps.length) {
                                min = timestamps[0];
                                max = timestamps[timestamps.length - 1];
                            }

                            // Enforce limits with user min/max options
                            min = parse(timeOpts.min, me) || min;
                            max = parse(timeOpts.max, me) || max;

                            // Remove ticks outside the min/max range
                            for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
                                timestamp = timestamps[i];
                                if (timestamp >= min && timestamp <= max) {
                                    ticks.push(timestamp);
                                }
                            }

                            me.min = min;
                            me.max = max;

                            // PRIVATE
                            me._unit = timeOpts.unit || determineUnitForFormatting(ticks, timeOpts.minUnit, me.min, me.max);
                            me._majorUnit = determineMajorUnit(me._unit);
                            me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
                            me._offsets = computeOffsets(me._table, ticks, min, max, options);
                            me._labelFormat = determineLabelFormat(me._timestamps.data, timeOpts);

                            return ticksFromTimestamps(ticks, me._majorUnit);
                        },

                        getLabelForIndex: function (index, datasetIndex) {
                            var me = this;
                            var data = me.chart.data;
                            var timeOpts = me.options.time;
                            var label = data.labels && index < data.labels.length ? data.labels[index] : '';
                            var value = data.datasets[datasetIndex].data[index];

                            if (helpers.isObject(value)) {
                                label = me.getRightValue(value);
                            }
                            if (timeOpts.tooltipFormat) {
                                return momentify(label, timeOpts).format(timeOpts.tooltipFormat);
                            }
                            if (typeof label === 'string') {
                                return label;
                            }

                            return momentify(label, timeOpts).format(me._labelFormat);
                        },

                        /**
                         * Function to format an individual tick mark
                         * @private
                         */
                        tickFormatFunction: function (tick, index, ticks, formatOverride) {
                            var me = this;
                            var options = me.options;
                            var time = tick.valueOf();
                            var formats = options.time.displayFormats;
                            var minorFormat = formats[me._unit];
                            var majorUnit = me._majorUnit;
                            var majorFormat = formats[majorUnit];
                            var majorTime = tick.clone().startOf(majorUnit).valueOf();
                            var majorTickOpts = options.ticks.major;
                            var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
                            var label = tick.format(formatOverride ? formatOverride : major ? majorFormat : minorFormat);
                            var tickOpts = major ? majorTickOpts : options.ticks.minor;
                            var formatter = helpers.valueOrDefault(tickOpts.callback, tickOpts.userCallback);

                            return formatter ? formatter(label, index, ticks) : label;
                        },

                        convertTicksToLabels: function (ticks) {
                            var labels = [];
                            var i, ilen;

                            for (i = 0, ilen = ticks.length; i < ilen; ++i) {
                                labels.push(this.tickFormatFunction(moment(ticks[i].value), i, ticks));
                            }

                            return labels;
                        },

                        /**
                         * @private
                         */
                        getPixelForOffset: function (time) {
                            var me = this;
                            var size = me._horizontal ? me.width : me.height;
                            var start = me._horizontal ? me.left : me.top;
                            var pos = interpolate(me._table, 'time', time, 'pos');

                            return start + size * (me._offsets.left + pos) / (me._offsets.left + 1 + me._offsets.right);
                        },

                        getPixelForValue: function (value, index, datasetIndex) {
                            var me = this;
                            var time = null;

                            if (index !== undefined && datasetIndex !== undefined) {
                                time = me._timestamps.datasets[datasetIndex][index];
                            }

                            if (time === null) {
                                time = parse(value, me);
                            }

                            if (time !== null) {
                                return me.getPixelForOffset(time);
                            }
                        },

                        getPixelForTick: function (index) {
                            var ticks = this.getTicks();
                            return index >= 0 && index < ticks.length ?
                                    this.getPixelForOffset(ticks[index].value) :
                                    null;
                        },

                        getValueForPixel: function (pixel) {
                            var me = this;
                            var size = me._horizontal ? me.width : me.height;
                            var start = me._horizontal ? me.left : me.top;
                            var pos = (size ? (pixel - start) / size : 0) * (me._offsets.left + 1 + me._offsets.left) - me._offsets.right;
                            var time = interpolate(me._table, 'pos', pos, 'time');

                            return moment(time);
                        },

                        /**
                         * Crude approximation of what the label width might be
                         * @private
                         */
                        getLabelWidth: function (label) {
                            var me = this;
                            var ticksOpts = me.options.ticks;
                            var tickLabelWidth = me.ctx.measureText(label).width;
                            var angle = helpers.toRadians(ticksOpts.maxRotation);
                            var cosRotation = Math.cos(angle);
                            var sinRotation = Math.sin(angle);
                            var tickFontSize = helpers.valueOrDefault(ticksOpts.fontSize, defaults.global.defaultFontSize);

                            return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
                        },

                        /**
                         * @private
                         */
                        getLabelCapacity: function (exampleTime) {
                            var me = this;

                            var formatOverride = me.options.time.displayFormats.millisecond;	// Pick the longest format for guestimation

                            var exampleLabel = me.tickFormatFunction(moment(exampleTime), 0, [], formatOverride);
                            var tickLabelWidth = me.getLabelWidth(exampleLabel);
                            var innerWidth = me.isHorizontal() ? me.width : me.height;

                            var capacity = Math.floor(innerWidth / tickLabelWidth);
                            return capacity > 0 ? capacity : 1;
                        }
                    });

                    Chart.scaleService.registerScaleType('time', TimeScale, defaultConfig);
                };

            }, {"1": 1, "25": 25, "45": 45}]}, {}, [7])(7)
});