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JavaScript
/*!
* 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) {
/* MIT license */
var colorNames = require(5);
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;
}
}, { "5": 5 }], 2: [function (require, module, exports) {
/* MIT license */
var convert = require(4);
var string = require(1);
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;
}, { "1": 1, "4": 4 }], 3: [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],
medi