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main.js
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/******/ (function(modules) { // webpackBootstrap
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(module) {var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;
/**
* @license
*
* chroma.js - JavaScript library for color conversions
*
* Copyright (c) 2011-2017, Gregor Aisch
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name Gregor Aisch may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL GREGOR AISCH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
(function() {
var Color, DEG2RAD, LAB_CONSTANTS, PI, PITHIRD, RAD2DEG, TWOPI, _average_lrgb, _guess_formats, _guess_formats_sorted, _input, _interpolators, abs, atan2, bezier, blend, blend_f, brewer, burn, chroma, clip_rgb, cmyk2rgb, colors, cos, css2rgb, darken, dodge, each, floor, hcg2rgb, hex2rgb, hsi2rgb, hsl2css, hsl2rgb, hsv2rgb, interpolate, interpolate_hsx, interpolate_lab, interpolate_lrgb, interpolate_num, interpolate_rgb, lab2lch, lab2rgb, lab_xyz, lch2lab, lch2rgb, lighten, limit, log, luminance_x, m, max, multiply, normal, num2rgb, overlay, pow, rgb2cmyk, rgb2css, rgb2hcg, rgb2hex, rgb2hsi, rgb2hsl, rgb2hsv, rgb2lab, rgb2lch, rgb2luminance, rgb2num, rgb2temperature, rgb2xyz, rgb_xyz, rnd, root, round, screen, sin, sqrt, temperature2rgb, type, unpack, w3cx11, xyz_lab, xyz_rgb,
slice = [].slice;
type = (function() {
/*
for browser-safe type checking+
ported from jQuery's $.type
*/
var classToType, len, name, o, ref;
classToType = {};
ref = "Boolean Number String Function Array Date RegExp Undefined Null".split(" ");
for (o = 0, len = ref.length; o < len; o++) {
name = ref[o];
classToType["[object " + name + "]"] = name.toLowerCase();
}
return function(obj) {
var strType;
strType = Object.prototype.toString.call(obj);
return classToType[strType] || "object";
};
})();
limit = function(x, min, max) {
if (min == null) {
min = 0;
}
if (max == null) {
max = 1;
}
if (x < min) {
x = min;
}
if (x > max) {
x = max;
}
return x;
};
unpack = function(args) {
if (args.length >= 3) {
return Array.prototype.slice.call(args);
} else {
return args[0];
}
};
clip_rgb = function(rgb) {
var i, o;
rgb._clipped = false;
rgb._unclipped = rgb.slice(0);
for (i = o = 0; o < 3; i = ++o) {
if (i < 3) {
if (rgb[i] < 0 || rgb[i] > 255) {
rgb._clipped = true;
}
if (rgb[i] < 0) {
rgb[i] = 0;
}
if (rgb[i] > 255) {
rgb[i] = 255;
}
} else if (i === 3) {
if (rgb[i] < 0) {
rgb[i] = 0;
}
if (rgb[i] > 1) {
rgb[i] = 1;
}
}
}
if (!rgb._clipped) {
delete rgb._unclipped;
}
return rgb;
};
PI = Math.PI, round = Math.round, cos = Math.cos, floor = Math.floor, pow = Math.pow, log = Math.log, sin = Math.sin, sqrt = Math.sqrt, atan2 = Math.atan2, max = Math.max, abs = Math.abs;
TWOPI = PI * 2;
PITHIRD = PI / 3;
DEG2RAD = PI / 180;
RAD2DEG = 180 / PI;
chroma = function() {
if (arguments[0] instanceof Color) {
return arguments[0];
}
return (function(func, args, ctor) {
ctor.prototype = func.prototype;
var child = new ctor, result = func.apply(child, args);
return Object(result) === result ? result : child;
})(Color, arguments, function(){});
};
chroma["default"] = chroma;
_interpolators = [];
if ((typeof module !== "undefined" && module !== null) && (module.exports != null)) {
module.exports = chroma;
}
if (true) {
!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function() {
return chroma;
}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
} else {}
chroma.version = '1.4.0';
_input = {};
_guess_formats = [];
_guess_formats_sorted = false;
Color = (function() {
function Color() {
var arg, args, chk, len, len1, me, mode, o, w;
me = this;
args = [];
for (o = 0, len = arguments.length; o < len; o++) {
arg = arguments[o];
if (arg != null) {
args.push(arg);
}
}
if (args.length > 1) {
mode = args[args.length - 1];
}
if (_input[mode] != null) {
me._rgb = clip_rgb(_input[mode](unpack(args.slice(0, -1))));
} else {
if (!_guess_formats_sorted) {
_guess_formats = _guess_formats.sort(function(a, b) {
return b.p - a.p;
});
_guess_formats_sorted = true;
}
for (w = 0, len1 = _guess_formats.length; w < len1; w++) {
chk = _guess_formats[w];
mode = chk.test.apply(chk, args);
if (mode) {
break;
}
}
if (mode) {
me._rgb = clip_rgb(_input[mode].apply(_input, args));
}
}
if (me._rgb == null) {
console.warn('unknown format: ' + args);
}
if (me._rgb == null) {
me._rgb = [0, 0, 0];
}
if (me._rgb.length === 3) {
me._rgb.push(1);
}
}
Color.prototype.toString = function() {
return this.hex();
};
return Color;
})();
chroma._input = _input;
/**
ColorBrewer colors for chroma.js
Copyright (c) 2002 Cynthia Brewer, Mark Harrower, and The
Pennsylvania State University.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed
under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.
@preserve
*/
chroma.brewer = brewer = {
OrRd: ['#fff7ec', '#fee8c8', '#fdd49e', '#fdbb84', '#fc8d59', '#ef6548', '#d7301f', '#b30000', '#7f0000'],
PuBu: ['#fff7fb', '#ece7f2', '#d0d1e6', '#a6bddb', '#74a9cf', '#3690c0', '#0570b0', '#045a8d', '#023858'],
BuPu: ['#f7fcfd', '#e0ecf4', '#bfd3e6', '#9ebcda', '#8c96c6', '#8c6bb1', '#88419d', '#810f7c', '#4d004b'],
Oranges: ['#fff5eb', '#fee6ce', '#fdd0a2', '#fdae6b', '#fd8d3c', '#f16913', '#d94801', '#a63603', '#7f2704'],
BuGn: ['#f7fcfd', '#e5f5f9', '#ccece6', '#99d8c9', '#66c2a4', '#41ae76', '#238b45', '#006d2c', '#00441b'],
YlOrBr: ['#ffffe5', '#fff7bc', '#fee391', '#fec44f', '#fe9929', '#ec7014', '#cc4c02', '#993404', '#662506'],
YlGn: ['#ffffe5', '#f7fcb9', '#d9f0a3', '#addd8e', '#78c679', '#41ab5d', '#238443', '#006837', '#004529'],
Reds: ['#fff5f0', '#fee0d2', '#fcbba1', '#fc9272', '#fb6a4a', '#ef3b2c', '#cb181d', '#a50f15', '#67000d'],
RdPu: ['#fff7f3', '#fde0dd', '#fcc5c0', '#fa9fb5', '#f768a1', '#dd3497', '#ae017e', '#7a0177', '#49006a'],
Greens: ['#f7fcf5', '#e5f5e0', '#c7e9c0', '#a1d99b', '#74c476', '#41ab5d', '#238b45', '#006d2c', '#00441b'],
YlGnBu: ['#ffffd9', '#edf8b1', '#c7e9b4', '#7fcdbb', '#41b6c4', '#1d91c0', '#225ea8', '#253494', '#081d58'],
Purples: ['#fcfbfd', '#efedf5', '#dadaeb', '#bcbddc', '#9e9ac8', '#807dba', '#6a51a3', '#54278f', '#3f007d'],
GnBu: ['#f7fcf0', '#e0f3db', '#ccebc5', '#a8ddb5', '#7bccc4', '#4eb3d3', '#2b8cbe', '#0868ac', '#084081'],
Greys: ['#ffffff', '#f0f0f0', '#d9d9d9', '#bdbdbd', '#969696', '#737373', '#525252', '#252525', '#000000'],
YlOrRd: ['#ffffcc', '#ffeda0', '#fed976', '#feb24c', '#fd8d3c', '#fc4e2a', '#e31a1c', '#bd0026', '#800026'],
PuRd: ['#f7f4f9', '#e7e1ef', '#d4b9da', '#c994c7', '#df65b0', '#e7298a', '#ce1256', '#980043', '#67001f'],
Blues: ['#f7fbff', '#deebf7', '#c6dbef', '#9ecae1', '#6baed6', '#4292c6', '#2171b5', '#08519c', '#08306b'],
PuBuGn: ['#fff7fb', '#ece2f0', '#d0d1e6', '#a6bddb', '#67a9cf', '#3690c0', '#02818a', '#016c59', '#014636'],
Viridis: ['#440154', '#482777', '#3f4a8a', '#31678e', '#26838f', '#1f9d8a', '#6cce5a', '#b6de2b', '#fee825'],
Spectral: ['#9e0142', '#d53e4f', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#e6f598', '#abdda4', '#66c2a5', '#3288bd', '#5e4fa2'],
RdYlGn: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee08b', '#ffffbf', '#d9ef8b', '#a6d96a', '#66bd63', '#1a9850', '#006837'],
RdBu: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#f7f7f7', '#d1e5f0', '#92c5de', '#4393c3', '#2166ac', '#053061'],
PiYG: ['#8e0152', '#c51b7d', '#de77ae', '#f1b6da', '#fde0ef', '#f7f7f7', '#e6f5d0', '#b8e186', '#7fbc41', '#4d9221', '#276419'],
PRGn: ['#40004b', '#762a83', '#9970ab', '#c2a5cf', '#e7d4e8', '#f7f7f7', '#d9f0d3', '#a6dba0', '#5aae61', '#1b7837', '#00441b'],
RdYlBu: ['#a50026', '#d73027', '#f46d43', '#fdae61', '#fee090', '#ffffbf', '#e0f3f8', '#abd9e9', '#74add1', '#4575b4', '#313695'],
BrBG: ['#543005', '#8c510a', '#bf812d', '#dfc27d', '#f6e8c3', '#f5f5f5', '#c7eae5', '#80cdc1', '#35978f', '#01665e', '#003c30'],
RdGy: ['#67001f', '#b2182b', '#d6604d', '#f4a582', '#fddbc7', '#ffffff', '#e0e0e0', '#bababa', '#878787', '#4d4d4d', '#1a1a1a'],
PuOr: ['#7f3b08', '#b35806', '#e08214', '#fdb863', '#fee0b6', '#f7f7f7', '#d8daeb', '#b2abd2', '#8073ac', '#542788', '#2d004b'],
Set2: ['#66c2a5', '#fc8d62', '#8da0cb', '#e78ac3', '#a6d854', '#ffd92f', '#e5c494', '#b3b3b3'],
Accent: ['#7fc97f', '#beaed4', '#fdc086', '#ffff99', '#386cb0', '#f0027f', '#bf5b17', '#666666'],
Set1: ['#e41a1c', '#377eb8', '#4daf4a', '#984ea3', '#ff7f00', '#ffff33', '#a65628', '#f781bf', '#999999'],
Set3: ['#8dd3c7', '#ffffb3', '#bebada', '#fb8072', '#80b1d3', '#fdb462', '#b3de69', '#fccde5', '#d9d9d9', '#bc80bd', '#ccebc5', '#ffed6f'],
Dark2: ['#1b9e77', '#d95f02', '#7570b3', '#e7298a', '#66a61e', '#e6ab02', '#a6761d', '#666666'],
Paired: ['#a6cee3', '#1f78b4', '#b2df8a', '#33a02c', '#fb9a99', '#e31a1c', '#fdbf6f', '#ff7f00', '#cab2d6', '#6a3d9a', '#ffff99', '#b15928'],
Pastel2: ['#b3e2cd', '#fdcdac', '#cbd5e8', '#f4cae4', '#e6f5c9', '#fff2ae', '#f1e2cc', '#cccccc'],
Pastel1: ['#fbb4ae', '#b3cde3', '#ccebc5', '#decbe4', '#fed9a6', '#ffffcc', '#e5d8bd', '#fddaec', '#f2f2f2']
};
(function() {
var key, results;
results = [];
for (key in brewer) {
results.push(brewer[key.toLowerCase()] = brewer[key]);
}
return results;
})();
/**
X11 color names
http://www.w3.org/TR/css3-color/#svg-color
*/
w3cx11 = {
aliceblue: '#f0f8ff',
antiquewhite: '#faebd7',
aqua: '#00ffff',
aquamarine: '#7fffd4',
azure: '#f0ffff',
beige: '#f5f5dc',
bisque: '#ffe4c4',
black: '#000000',
blanchedalmond: '#ffebcd',
blue: '#0000ff',
blueviolet: '#8a2be2',
brown: '#a52a2a',
burlywood: '#deb887',
cadetblue: '#5f9ea0',
chartreuse: '#7fff00',
chocolate: '#d2691e',
coral: '#ff7f50',
cornflower: '#6495ed',
cornflowerblue: '#6495ed',
cornsilk: '#fff8dc',
crimson: '#dc143c',
cyan: '#00ffff',
darkblue: '#00008b',
darkcyan: '#008b8b',
darkgoldenrod: '#b8860b',
darkgray: '#a9a9a9',
darkgreen: '#006400',
darkgrey: '#a9a9a9',
darkkhaki: '#bdb76b',
darkmagenta: '#8b008b',
darkolivegreen: '#556b2f',
darkorange: '#ff8c00',
darkorchid: '#9932cc',
darkred: '#8b0000',
darksalmon: '#e9967a',
darkseagreen: '#8fbc8f',
darkslateblue: '#483d8b',
darkslategray: '#2f4f4f',
darkslategrey: '#2f4f4f',
darkturquoise: '#00ced1',
darkviolet: '#9400d3',
deeppink: '#ff1493',
deepskyblue: '#00bfff',
dimgray: '#696969',
dimgrey: '#696969',
dodgerblue: '#1e90ff',
firebrick: '#b22222',
floralwhite: '#fffaf0',
forestgreen: '#228b22',
fuchsia: '#ff00ff',
gainsboro: '#dcdcdc',
ghostwhite: '#f8f8ff',
gold: '#ffd700',
goldenrod: '#daa520',
gray: '#808080',
green: '#008000',
greenyellow: '#adff2f',
grey: '#808080',
honeydew: '#f0fff0',
hotpink: '#ff69b4',
indianred: '#cd5c5c',
indigo: '#4b0082',
ivory: '#fffff0',
khaki: '#f0e68c',
laserlemon: '#ffff54',
lavender: '#e6e6fa',
lavenderblush: '#fff0f5',
lawngreen: '#7cfc00',
lemonchiffon: '#fffacd',
lightblue: '#add8e6',
lightcoral: '#f08080',
lightcyan: '#e0ffff',
lightgoldenrod: '#fafad2',
lightgoldenrodyellow: '#fafad2',
lightgray: '#d3d3d3',
lightgreen: '#90ee90',
lightgrey: '#d3d3d3',
lightpink: '#ffb6c1',
lightsalmon: '#ffa07a',
lightseagreen: '#20b2aa',
lightskyblue: '#87cefa',
lightslategray: '#778899',
lightslategrey: '#778899',
lightsteelblue: '#b0c4de',
lightyellow: '#ffffe0',
lime: '#00ff00',
limegreen: '#32cd32',
linen: '#faf0e6',
magenta: '#ff00ff',
maroon: '#800000',
maroon2: '#7f0000',
maroon3: '#b03060',
mediumaquamarine: '#66cdaa',
mediumblue: '#0000cd',
mediumorchid: '#ba55d3',
mediumpurple: '#9370db',
mediumseagreen: '#3cb371',
mediumslateblue: '#7b68ee',
mediumspringgreen: '#00fa9a',
mediumturquoise: '#48d1cc',
mediumvioletred: '#c71585',
midnightblue: '#191970',
mintcream: '#f5fffa',
mistyrose: '#ffe4e1',
moccasin: '#ffe4b5',
navajowhite: '#ffdead',
navy: '#000080',
oldlace: '#fdf5e6',
olive: '#808000',
olivedrab: '#6b8e23',
orange: '#ffa500',
orangered: '#ff4500',
orchid: '#da70d6',
palegoldenrod: '#eee8aa',
palegreen: '#98fb98',
paleturquoise: '#afeeee',
palevioletred: '#db7093',
papayawhip: '#ffefd5',
peachpuff: '#ffdab9',
peru: '#cd853f',
pink: '#ffc0cb',
plum: '#dda0dd',
powderblue: '#b0e0e6',
purple: '#800080',
purple2: '#7f007f',
purple3: '#a020f0',
rebeccapurple: '#663399',
red: '#ff0000',
rosybrown: '#bc8f8f',
royalblue: '#4169e1',
saddlebrown: '#8b4513',
salmon: '#fa8072',
sandybrown: '#f4a460',
seagreen: '#2e8b57',
seashell: '#fff5ee',
sienna: '#a0522d',
silver: '#c0c0c0',
skyblue: '#87ceeb',
slateblue: '#6a5acd',
slategray: '#708090',
slategrey: '#708090',
snow: '#fffafa',
springgreen: '#00ff7f',
steelblue: '#4682b4',
tan: '#d2b48c',
teal: '#008080',
thistle: '#d8bfd8',
tomato: '#ff6347',
turquoise: '#40e0d0',
violet: '#ee82ee',
wheat: '#f5deb3',
white: '#ffffff',
whitesmoke: '#f5f5f5',
yellow: '#ffff00',
yellowgreen: '#9acd32'
};
chroma.colors = colors = w3cx11;
lab2rgb = function() {
var a, args, b, g, l, r, x, y, z;
args = unpack(arguments);
l = args[0], a = args[1], b = args[2];
y = (l + 16) / 116;
x = isNaN(a) ? y : y + a / 500;
z = isNaN(b) ? y : y - b / 200;
y = LAB_CONSTANTS.Yn * lab_xyz(y);
x = LAB_CONSTANTS.Xn * lab_xyz(x);
z = LAB_CONSTANTS.Zn * lab_xyz(z);
r = xyz_rgb(3.2404542 * x - 1.5371385 * y - 0.4985314 * z);
g = xyz_rgb(-0.9692660 * x + 1.8760108 * y + 0.0415560 * z);
b = xyz_rgb(0.0556434 * x - 0.2040259 * y + 1.0572252 * z);
return [r, g, b, args.length > 3 ? args[3] : 1];
};
xyz_rgb = function(r) {
return 255 * (r <= 0.00304 ? 12.92 * r : 1.055 * pow(r, 1 / 2.4) - 0.055);
};
lab_xyz = function(t) {
if (t > LAB_CONSTANTS.t1) {
return t * t * t;
} else {
return LAB_CONSTANTS.t2 * (t - LAB_CONSTANTS.t0);
}
};
LAB_CONSTANTS = {
Kn: 18,
Xn: 0.950470,
Yn: 1,
Zn: 1.088830,
t0: 0.137931034,
t1: 0.206896552,
t2: 0.12841855,
t3: 0.008856452
};
rgb2lab = function() {
var b, g, r, ref, ref1, x, y, z;
ref = unpack(arguments), r = ref[0], g = ref[1], b = ref[2];
ref1 = rgb2xyz(r, g, b), x = ref1[0], y = ref1[1], z = ref1[2];
return [116 * y - 16, 500 * (x - y), 200 * (y - z)];
};
rgb_xyz = function(r) {
if ((r /= 255) <= 0.04045) {
return r / 12.92;
} else {
return pow((r + 0.055) / 1.055, 2.4);
}
};
xyz_lab = function(t) {
if (t > LAB_CONSTANTS.t3) {
return pow(t, 1 / 3);
} else {
return t / LAB_CONSTANTS.t2 + LAB_CONSTANTS.t0;
}
};
rgb2xyz = function() {
var b, g, r, ref, x, y, z;
ref = unpack(arguments), r = ref[0], g = ref[1], b = ref[2];
r = rgb_xyz(r);
g = rgb_xyz(g);
b = rgb_xyz(b);
x = xyz_lab((0.4124564 * r + 0.3575761 * g + 0.1804375 * b) / LAB_CONSTANTS.Xn);
y = xyz_lab((0.2126729 * r + 0.7151522 * g + 0.0721750 * b) / LAB_CONSTANTS.Yn);
z = xyz_lab((0.0193339 * r + 0.1191920 * g + 0.9503041 * b) / LAB_CONSTANTS.Zn);
return [x, y, z];
};
chroma.lab = function() {
return (function(func, args, ctor) {
ctor.prototype = func.prototype;
var child = new ctor, result = func.apply(child, args);
return Object(result) === result ? result : child;
})(Color, slice.call(arguments).concat(['lab']), function(){});
};
_input.lab = lab2rgb;
Color.prototype.lab = function() {
return rgb2lab(this._rgb);
};
bezier = function(colors) {
var I, I0, I1, c, lab0, lab1, lab2, lab3, ref, ref1, ref2;
colors = (function() {
var len, o, results;
results = [];
for (o = 0, len = colors.length; o < len; o++) {
c = colors[o];
results.push(chroma(c));
}
return results;
})();
if (colors.length === 2) {
ref = (function() {
var len, o, results;
results = [];
for (o = 0, len = colors.length; o < len; o++) {
c = colors[o];
results.push(c.lab());
}
return results;
})(), lab0 = ref[0], lab1 = ref[1];
I = function(t) {
var i, lab;
lab = (function() {
var o, results;
results = [];
for (i = o = 0; o <= 2; i = ++o) {
results.push(lab0[i] + t * (lab1[i] - lab0[i]));
}
return results;
})();
return chroma.lab.apply(chroma, lab);
};
} else if (colors.length === 3) {
ref1 = (function() {
var len, o, results;
results = [];
for (o = 0, len = colors.length; o < len; o++) {
c = colors[o];
results.push(c.lab());
}
return results;
})(), lab0 = ref1[0], lab1 = ref1[1], lab2 = ref1[2];
I = function(t) {
var i, lab;
lab = (function() {
var o, results;
results = [];
for (i = o = 0; o <= 2; i = ++o) {
results.push((1 - t) * (1 - t) * lab0[i] + 2 * (1 - t) * t * lab1[i] + t * t * lab2[i]);
}
return results;
})();
return chroma.lab.apply(chroma, lab);
};
} else if (colors.length === 4) {
ref2 = (function() {
var len, o, results;
results = [];
for (o = 0, len = colors.length; o < len; o++) {
c = colors[o];
results.push(c.lab());
}
return results;
})(), lab0 = ref2[0], lab1 = ref2[1], lab2 = ref2[2], lab3 = ref2[3];
I = function(t) {
var i, lab;
lab = (function() {
var o, results;
results = [];
for (i = o = 0; o <= 2; i = ++o) {
results.push((1 - t) * (1 - t) * (1 - t) * lab0[i] + 3 * (1 - t) * (1 - t) * t * lab1[i] + 3 * (1 - t) * t * t * lab2[i] + t * t * t * lab3[i]);
}
return results;
})();
return chroma.lab.apply(chroma, lab);
};
} else if (colors.length === 5) {
I0 = bezier(colors.slice(0, 3));
I1 = bezier(colors.slice(2, 5));
I = function(t) {
if (t < 0.5) {
return I0(t * 2);
} else {
return I1((t - 0.5) * 2);
}
};
}
return I;
};
chroma.bezier = function(colors) {
var f;
f = bezier(colors);
f.scale = function() {
return chroma.scale(f);
};
return f;
};
chroma.cubehelix = function(start, rotations, hue, gamma, lightness) {
var dh, dl, f;
if (start == null) {
start = 300;
}
if (rotations == null) {
rotations = -1.5;
}
if (hue == null) {
hue = 1;
}
if (gamma == null) {
gamma = 1;
}
if (lightness == null) {
lightness = [0, 1];
}
dh = 0;
if (type(lightness) === 'array') {
dl = lightness[1] - lightness[0];
} else {
dl = 0;
lightness = [lightness, lightness];
}
f = function(fract) {
var a, amp, b, cos_a, g, h, l, r, sin_a;
a = TWOPI * ((start + 120) / 360 + rotations * fract);
l = pow(lightness[0] + dl * fract, gamma);
h = dh !== 0 ? hue[0] + fract * dh : hue;
amp = h * l * (1 - l) / 2;
cos_a = cos(a);
sin_a = sin(a);
r = l + amp * (-0.14861 * cos_a + 1.78277 * sin_a);
g = l + amp * (-0.29227 * cos_a - 0.90649 * sin_a);
b = l + amp * (+1.97294 * cos_a);
return chroma(clip_rgb([r * 255, g * 255, b * 255, 1]));
};
f.start = function(s) {
if (s == null) {
return start;
}
start = s;
return f;
};
f.rotations = function(r) {
if (r == null) {
return rotations;
}
rotations = r;
return f;
};
f.gamma = function(g) {
if (g == null) {
return gamma;
}
gamma = g;
return f;
};
f.hue = function(h) {
if (h == null) {
return hue;
}
hue = h;
if (type(hue) === 'array') {
dh = hue[1] - hue[0];
if (dh === 0) {
hue = hue[1];
}
} else {
dh = 0;
}
return f;
};
f.lightness = function(h) {
if (h == null) {
return lightness;
}
if (type(h) === 'array') {
lightness = h;
dl = h[1] - h[0];
} else {
lightness = [h, h];
dl = 0;
}
return f;
};
f.scale = function() {
return chroma.scale(f);
};
f.hue(hue);
return f;
};
chroma.random = function() {
var code, digits, i, o;
digits = '0123456789abcdef';
code = '#';
for (i = o = 0; o < 6; i = ++o) {
code += digits.charAt(floor(Math.random() * 16));
}
return new Color(code);
};
_interpolators = [];
interpolate = function(col1, col2, f, m) {
var interpol, len, o, res;
if (f == null) {
f = 0.5;
}
if (m == null) {
m = 'rgb';
}
/*
interpolates between colors
f = 0 --> me
f = 1 --> col
*/
if (type(col1) !== 'object') {
col1 = chroma(col1);
}
if (type(col2) !== 'object') {
col2 = chroma(col2);
}
for (o = 0, len = _interpolators.length; o < len; o++) {
interpol = _interpolators[o];
if (m === interpol[0]) {
res = interpol[1](col1, col2, f, m);
break;
}
}
if (res == null) {
throw "color mode " + m + " is not supported";
}
return res.alpha(col1.alpha() + f * (col2.alpha() - col1.alpha()));
};
chroma.interpolate = interpolate;
Color.prototype.interpolate = function(col2, f, m) {
return interpolate(this, col2, f, m);
};
chroma.mix = interpolate;
Color.prototype.mix = Color.prototype.interpolate;
_input.rgb = function() {
var k, ref, results, v;
ref = unpack(arguments);
results = [];
for (k in ref) {
v = ref[k];
results.push(v);
}
return results;
};
chroma.rgb = function() {
return (function(func, args, ctor) {
ctor.prototype = func.prototype;
var child = new ctor, result = func.apply(child, args);
return Object(result) === result ? result : child;
})(Color, slice.call(arguments).concat(['rgb']), function(){});
};
Color.prototype.rgb = function(round) {
if (round == null) {
round = true;
}
if (round) {
return this._rgb.map(Math.round).slice(0, 3);
} else {
return this._rgb.slice(0, 3);
}
};
Color.prototype.rgba = function(round) {
if (round == null) {
round = true;
}
if (!round) {
return this._rgb.slice(0);
}
return [Math.round(this._rgb[0]), Math.round(this._rgb[1]), Math.round(this._rgb[2]), this._rgb[3]];
};
_guess_formats.push({
p: 3,
test: function(n) {
var a;
a = unpack(arguments);
if (type(a) === 'array' && a.length === 3) {
return 'rgb';
}
if (a.length === 4 && type(a[3]) === "number" && a[3] >= 0 && a[3] <= 1) {
return 'rgb';
}
}
});
_input.lrgb = _input.rgb;
interpolate_lrgb = function(col1, col2, f, m) {
var xyz0, xyz1;
xyz0 = col1._rgb;
xyz1 = col2._rgb;
return new Color(sqrt(pow(xyz0[0], 2) * (1 - f) + pow(xyz1[0], 2) * f), sqrt(pow(xyz0[1], 2) * (1 - f) + pow(xyz1[1], 2) * f), sqrt(pow(xyz0[2], 2) * (1 - f) + pow(xyz1[2], 2) * f), m);
};
_average_lrgb = function(colors) {
var col, f, len, o, rgb, xyz;
f = 1 / colors.length;
xyz = [0, 0, 0, 0];
for (o = 0, len = colors.length; o < len; o++) {
col = colors[o];
rgb = col._rgb;
xyz[0] += pow(rgb[0], 2) * f;
xyz[1] += pow(rgb[1], 2) * f;
xyz[2] += pow(rgb[2], 2) * f;
xyz[3] += rgb[3] * f;
}
xyz[0] = sqrt(xyz[0]);
xyz[1] = sqrt(xyz[1]);
xyz[2] = sqrt(xyz[2]);
if (xyz[3] > 1) {
xyz[3] = 1;
}
return new Color(clip_rgb(xyz));
};
_interpolators.push(['lrgb', interpolate_lrgb]);
chroma.average = function(colors, mode) {
var A, alpha, c, cnt, dx, dy, first, i, l, len, o, xyz, xyz2;
if (mode == null) {
mode = 'rgb';
}
l = colors.length;
colors = colors.map(function(c) {
return chroma(c);
});
first = colors.splice(0, 1)[0];
if (mode === 'lrgb') {
return _average_lrgb(colors);
}
xyz = first.get(mode);
cnt = [];
dx = 0;
dy = 0;
for (i in xyz) {
xyz[i] = xyz[i] || 0;
cnt.push(isNaN(xyz[i]) ? 0 : 1);
if (mode.charAt(i) === 'h' && !isNaN(xyz[i])) {
A = xyz[i] / 180 * PI;
dx += cos(A);
dy += sin(A);
}
}
alpha = first.alpha();
for (o = 0, len = colors.length; o < len; o++) {
c = colors[o];
xyz2 = c.get(mode);
alpha += c.alpha();
for (i in xyz) {
if (!isNaN(xyz2[i])) {
cnt[i] += 1;
if (mode.charAt(i) === 'h') {
A = xyz2[i] / 180 * PI;
dx += cos(A);
dy += sin(A);
} else {
xyz[i] += xyz2[i];
}