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socioscapes.js
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socioscapes.js
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(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.socioscapes = f()}})(function(){var define,module,exports;return (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})({1:[function(require,module,exports){
/**
* @license
*
* chroma.js - JavaScript library for color conversions
*
* Copyright (c) 2011-2015, 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, _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, hex2rgb, hsi2rgb, hsl2css, hsl2rgb, hsv2rgb, interpolate, interpolate_hsx, interpolate_lab, interpolate_num, interpolate_rgb, lab2lch, lab2rgb, lab_xyz, lch2lab, lch2rgb, lighten, limit, log, luminance_x, m, max, multiply, normal, num2rgb, overlay, pow, rgb2cmyk, rgb2css, 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 [].slice.call(args);
} else {
return args[0];
}
};
clip_rgb = function(rgb) {
var i;
for (i in rgb) {
if (i < 3) {
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;
}
}
}
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(){});
};
_interpolators = [];
if ((typeof module !== "undefined" && module !== null) && (module.exports != null)) {
module.exports = chroma;
}
if (typeof define === 'function' && define.amd) {
define([], function() {
return chroma;
});
} else {
root = typeof exports !== "undefined" && exports !== null ? exports : this;
root.chroma = chroma;
}
chroma.version = '1.1.1';
/**
chroma.js
Copyright (c) 2011-2013, 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:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* 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.
* 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.
@source: https://github.com/gka/chroma.js
*/
_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);
}
}
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.alpha = function(alpha) {
if (arguments.length) {
this._rgb[3] = alpha;
return this;
}
return this._rgb[3];
};
Color.prototype.toString = function() {
return this.name();
};
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'],
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']
};
/**
X11 color names
http://www.w3.org/TR/css3-color/#svg-color
*/
w3cx11 = {
indigo: "#4b0082",
gold: "#ffd700",
hotpink: "#ff69b4",
firebrick: "#b22222",
indianred: "#cd5c5c",
yellow: "#ffff00",
mistyrose: "#ffe4e1",
darkolivegreen: "#556b2f",
olive: "#808000",
darkseagreen: "#8fbc8f",
pink: "#ffc0cb",
tomato: "#ff6347",
lightcoral: "#f08080",
orangered: "#ff4500",
navajowhite: "#ffdead",
lime: "#00ff00",
palegreen: "#98fb98",
darkslategrey: "#2f4f4f",
greenyellow: "#adff2f",
burlywood: "#deb887",
seashell: "#fff5ee",
mediumspringgreen: "#00fa9a",
fuchsia: "#ff00ff",
papayawhip: "#ffefd5",
blanchedalmond: "#ffebcd",
chartreuse: "#7fff00",
dimgray: "#696969",
black: "#000000",
peachpuff: "#ffdab9",
springgreen: "#00ff7f",
aquamarine: "#7fffd4",
white: "#ffffff",
orange: "#ffa500",
lightsalmon: "#ffa07a",
darkslategray: "#2f4f4f",
brown: "#a52a2a",
ivory: "#fffff0",
dodgerblue: "#1e90ff",
peru: "#cd853f",
lawngreen: "#7cfc00",
chocolate: "#d2691e",
crimson: "#dc143c",
forestgreen: "#228b22",
darkgrey: "#a9a9a9",
lightseagreen: "#20b2aa",
cyan: "#00ffff",
mintcream: "#f5fffa",
silver: "#c0c0c0",
antiquewhite: "#faebd7",
mediumorchid: "#ba55d3",
skyblue: "#87ceeb",
gray: "#808080",
darkturquoise: "#00ced1",
goldenrod: "#daa520",
darkgreen: "#006400",
floralwhite: "#fffaf0",
darkviolet: "#9400d3",
darkgray: "#a9a9a9",
moccasin: "#ffe4b5",
saddlebrown: "#8b4513",
grey: "#808080",
darkslateblue: "#483d8b",
lightskyblue: "#87cefa",
lightpink: "#ffb6c1",
mediumvioletred: "#c71585",
slategrey: "#708090",
red: "#ff0000",
deeppink: "#ff1493",
limegreen: "#32cd32",
darkmagenta: "#8b008b",
palegoldenrod: "#eee8aa",
plum: "#dda0dd",
turquoise: "#40e0d0",
lightgrey: "#d3d3d3",
lightgoldenrodyellow: "#fafad2",
darkgoldenrod: "#b8860b",
lavender: "#e6e6fa",
maroon: "#800000",
yellowgreen: "#9acd32",
sandybrown: "#f4a460",
thistle: "#d8bfd8",
violet: "#ee82ee",
navy: "#000080",
magenta: "#ff00ff",
dimgrey: "#696969",
tan: "#d2b48c",
rosybrown: "#bc8f8f",
olivedrab: "#6b8e23",
blue: "#0000ff",
lightblue: "#add8e6",
ghostwhite: "#f8f8ff",
honeydew: "#f0fff0",
cornflowerblue: "#6495ed",
slateblue: "#6a5acd",
linen: "#faf0e6",
darkblue: "#00008b",
powderblue: "#b0e0e6",
seagreen: "#2e8b57",
darkkhaki: "#bdb76b",
snow: "#fffafa",
sienna: "#a0522d",
mediumblue: "#0000cd",
royalblue: "#4169e1",
lightcyan: "#e0ffff",
green: "#008000",
mediumpurple: "#9370db",
midnightblue: "#191970",
cornsilk: "#fff8dc",
paleturquoise: "#afeeee",
bisque: "#ffe4c4",
slategray: "#708090",
darkcyan: "#008b8b",
khaki: "#f0e68c",
wheat: "#f5deb3",
teal: "#008080",
darkorchid: "#9932cc",
deepskyblue: "#00bfff",
salmon: "#fa8072",
darkred: "#8b0000",
steelblue: "#4682b4",
palevioletred: "#db7093",
lightslategray: "#778899",
aliceblue: "#f0f8ff",
lightslategrey: "#778899",
lightgreen: "#90ee90",
orchid: "#da70d6",
gainsboro: "#dcdcdc",
mediumseagreen: "#3cb371",
lightgray: "#d3d3d3",
mediumturquoise: "#48d1cc",
lemonchiffon: "#fffacd",
cadetblue: "#5f9ea0",
lightyellow: "#ffffe0",
lavenderblush: "#fff0f5",
coral: "#ff7f50",
purple: "#800080",
aqua: "#00ffff",
whitesmoke: "#f5f5f5",
mediumslateblue: "#7b68ee",
darkorange: "#ff8c00",
mediumaquamarine: "#66cdaa",
darksalmon: "#e9967a",
beige: "#f5f5dc",
blueviolet: "#8a2be2",
azure: "#f0ffff",
lightsteelblue: "#b0c4de",
oldlace: "#fdf5e6",
rebeccapurple: "#663399"
};
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);
r = limit(r, 0, 255);
g = limit(g, 0, 255);
b = limit(b, 0, 255);
return [r, g, b, args.length > 3 ? args[3] : 1];
};
xyz_rgb = function(r) {
return round(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.js
Copyright (c) 2011-2013, 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:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* 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.
* 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.
@source: https://github.com/gka/chroma.js
*/
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];
}
dl = lightness[1] - lightness[0];
dh = 0;
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]));
};
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;
}
lightness = h;
if (type(lightness) === 'array') {
dl = lightness[1] - lightness[0];
if (dl === 0) {
lightness = lightness[1];
}
} else {
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);
};
_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() {
return this._rgb.slice(0, 3);
};
Color.prototype.rgba = function() {
return this._rgb;
};
_guess_formats.push({
p: 15,
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';
}
}
});
hex2rgb = function(hex) {
var a, b, g, r, rgb, u;
if (hex.match(/^#?([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/)) {
if (hex.length === 4 || hex.length === 7) {
hex = hex.substr(1);
}
if (hex.length === 3) {
hex = hex.split("");
hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2];
}
u = parseInt(hex, 16);
r = u >> 16;
g = u >> 8 & 0xFF;
b = u & 0xFF;
return [r, g, b, 1];
}
if (hex.match(/^#?([A-Fa-f0-9]{8})$/)) {
if (hex.length === 9) {
hex = hex.substr(1);
}
u = parseInt(hex, 16);
r = u >> 24 & 0xFF;
g = u >> 16 & 0xFF;
b = u >> 8 & 0xFF;
a = round((u & 0xFF) / 0xFF * 100) / 100;
return [r, g, b, a];
}
if ((_input.css != null) && (rgb = _input.css(hex))) {
return rgb;
}
throw "unknown color: " + hex;
};
rgb2hex = function(channels, mode) {
var a, b, g, hxa, r, str, u;
if (mode == null) {
mode = 'rgb';
}
r = channels[0], g = channels[1], b = channels[2], a = channels[3];
u = r << 16 | g << 8 | b;
str = "000000" + u.toString(16);
str = str.substr(str.length - 6);
hxa = '0' + round(a * 255).toString(16);
hxa = hxa.substr(hxa.length - 2);
return "#" + (function() {
switch (mode.toLowerCase()) {
case 'rgba':
return str + hxa;
case 'argb':
return hxa + str;
default:
return str;
}
})();
};
_input.hex = function(h) {
return hex2rgb(h);
};
chroma.hex = 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(['hex']), function(){});
};
Color.prototype.hex = function(mode) {
if (mode == null) {
mode = 'rgb';
}
return rgb2hex(this._rgb, mode);
};
_guess_formats.push({
p: 10,
test: function(n) {
if (arguments.length === 1 && type(n) === "string") {
return 'hex';
}
}
});
hsl2rgb = function() {
var args, b, c, g, h, i, l, o, r, ref, s, t1, t2, t3;
args = unpack(arguments);
h = args[0], s = args[1], l = args[2];
if (s === 0) {
r = g = b = l * 255;
} else {
t3 = [0, 0, 0];
c = [0, 0, 0];
t2 = l < 0.5 ? l * (1 + s) : l + s - l * s;
t1 = 2 * l - t2;
h /= 360;
t3[0] = h + 1 / 3;
t3[1] = h;
t3[2] = h - 1 / 3;
for (i = o = 0; o <= 2; i = ++o) {
if (t3[i] < 0) {
t3[i] += 1;
}
if (t3[i] > 1) {
t3[i] -= 1;
}
if (6 * t3[i] < 1) {
c[i] = t1 + (t2 - t1) * 6 * t3[i];
} else if (2 * t3[i] < 1) {
c[i] = t2;
} else if (3 * t3[i] < 2) {
c[i] = t1 + (t2 - t1) * ((2 / 3) - t3[i]) * 6;
} else {
c[i] = t1;
}
}
ref = [round(c[0] * 255), round(c[1] * 255), round(c[2] * 255)], r = ref[0], g = ref[1], b = ref[2];
}
if (args.length > 3) {
return [r, g, b, args[3]];
} else {
return [r, g, b];
}
};
rgb2hsl = function(r, g, b) {
var h, l, min, ref, s;
if (r !== void 0 && r.length >= 3) {
ref = r, r = ref[0], g = ref[1], b = ref[2];
}
r /= 255;
g /= 255;
b /= 255;
min = Math.min(r, g, b);
max = Math.max(r, g, b);
l = (max + min) / 2;
if (max === min) {
s = 0;
h = Number.NaN;
} else {
s = l < 0.5 ? (max - min) / (max + min) : (max - min) / (2 - max - min);
}
if (r === max) {
h = (g - b) / (max - min);
} else if (g === max) {
h = 2 + (b - r) / (max - min);
} else if (b === max) {
h = 4 + (r - g) / (max - min);
}
h *= 60;
if (h < 0) {
h += 360;
}
return [h, s, l];
};
chroma.hsl = 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(['hsl']), function(){});
};
_input.hsl = hsl2rgb;
Color.prototype.hsl = function() {
return rgb2hsl(this._rgb);
};
hsv2rgb = function() {