spectrum.js

(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.magma = 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){
module.exports=["#000004","#010005","#010106","#010108","#020109","#02020b","#02020d","#03030f","#030312","#040414","#050416","#060518","#06051a","#07061c","#08071e","#090720","#0a0822","#0b0924","#0c0926","#0d0a29","#0e0b2b","#100b2d","#110c2f","#120d31","#130d34","#140e36","#150e38","#160f3b","#180f3d","#19103f","#1a1042","#1c1044","#1d1147","#1e1149","#20114b","#21114e","#221150","#241253","#251255","#271258","#29115a","#2a115c","#2c115f","#2d1161","#2f1163","#311165","#331067","#341069","#36106b","#38106c","#390f6e","#3b0f70","#3d0f71","#3f0f72","#400f74","#420f75","#440f76","#451077","#471078","#491078","#4a1079","#4c117a","#4e117b","#4f127b","#51127c","#52137c","#54137d","#56147d","#57157e","#59157e","#5a167e","#5c167f","#5d177f","#5f187f","#601880","#621980","#641a80","#651a80","#671b80","#681c81","#6a1c81","#6b1d81","#6d1d81","#6e1e81","#701f81","#721f81","#732081","#752181","#762181","#782281","#792282","#7b2382","#7c2382","#7e2482","#802582","#812581","#832681","#842681","#862781","#882781","#892881","#8b2981","#8c2981","#8e2a81","#902a81","#912b81","#932b80","#942c80","#962c80","#982d80","#992d80","#9b2e7f","#9c2e7f","#9e2f7f","#a02f7f","#a1307e","#a3307e","#a5317e","#a6317d","#a8327d","#aa337d","#ab337c","#ad347c","#ae347b","#b0357b","#b2357b","#b3367a","#b5367a","#b73779","#b83779","#ba3878","#bc3978","#bd3977","#bf3a77","#c03a76","#c23b75","#c43c75","#c53c74","#c73d73","#c83e73","#ca3e72","#cc3f71","#cd4071","#cf4070","#d0416f","#d2426f","#d3436e","#d5446d","#d6456c","#d8456c","#d9466b","#db476a","#dc4869","#de4968","#df4a68","#e04c67","#e24d66","#e34e65","#e44f64","#e55064","#e75263","#e85362","#e95462","#ea5661","#eb5760","#ec5860","#ed5a5f","#ee5b5e","#ef5d5e","#f05f5e","#f1605d","#f2625d","#f2645c","#f3655c","#f4675c","#f4695c","#f56b5c","#f66c5c","#f66e5c","#f7705c","#f7725c","#f8745c","#f8765c","#f9785d","#f9795d","#f97b5d","#fa7d5e","#fa7f5e","#fa815f","#fb835f","#fb8560","#fb8761","#fc8961","#fc8a62","#fc8c63","#fc8e64","#fc9065","#fd9266","#fd9467","#fd9668","#fd9869","#fd9a6a","#fd9b6b","#fe9d6c","#fe9f6d","#fea16e","#fea36f","#fea571","#fea772","#fea973","#feaa74","#feac76","#feae77","#feb078","#feb27a","#feb47b","#feb67c","#feb77e","#feb97f","#febb81","#febd82","#febf84","#fec185","#fec287","#fec488","#fec68a","#fec88c","#feca8d","#fecc8f","#fecd90","#fecf92","#fed194","#fed395","#fed597","#fed799","#fed89a","#fdda9c","#fddc9e","#fddea0","#fde0a1","#fde2a3","#fde3a5","#fde5a7","#fde7a9","#fde9aa","#fdebac","#fcecae","#fceeb0","#fcf0b2","#fcf2b4","#fcf4b6","#fcf6b8","#fcf7b9","#fcf9bb","#fcfbbd","#fcfdbf"]
},{}],2:[function(require,module,exports){
'use strict'

module.exports = require('./utils/interpolate').interpolateArray(require('./hex/magma.json'))

},{"./hex/magma.json":1,"./utils/interpolate":4}],3:[function(require,module,exports){
'use strict'

module.exports = function hex2rgb (hex) {
  return {
    // skip # at position 0
    r: parseInt(hex.slice(1, 3), 16) / 255,
    g: parseInt(hex.slice(3, 5), 16) / 255,
    b: parseInt(hex.slice(5, 7), 16) / 255
  }
}

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

var hex2rgb = require('./hex2rgb')
var rgb2hex = require('./rgb2hex')

function interpolate (a, b) {
  a = hex2rgb(a)
  b = hex2rgb(b)

  var ar = a.r
  var ag = a.g
  var ab = a.b
  var br = b.r - ar
  var bg = b.g - ag
  var bb = b.b - ab

  return function (t) {
    return rgb2hex({
      r: ar + br * t,
      g: ag + bg * t,
      b: ab + bb * t
    })
  }
}

function interpolateArray (scaleArr) {
  var N = scaleArr.length - 2 // -1 for spacings, -1 for number of interpolate fns
  var intervalWidth = 1 / N
  var intervals = []

  for (var i = 0; i <= N; i++) {
    intervals[i] = interpolate(scaleArr[i], scaleArr[i + 1])
  }

  return function (t) {
    if (t < 0 || t > 1) throw new Error('Outside the allowed range of [0, 1]')

    var i = Math.floor(t * N)
    var intervalOffset = i * intervalWidth

    return intervals[i](t / intervalWidth - intervalOffset / intervalWidth)
  }
}

module.exports = {
  interpolate: interpolate,
  interpolateArray: interpolateArray
}

},{"./hex2rgb":3,"./rgb2hex":5}],5:[function(require,module,exports){
'use strict'

function zeroPadHex (hexStr) {
  return '00'.slice(hexStr.length) + hexStr
}

module.exports = function rgb2hex (rgb) {
  // Map channel triplet into hex color code
  return '#' + [rgb.r, rgb.g, rgb.b]
    // Convert to hex (map [0, 1] => [0, 255] => Z => [0x0, 0xff])
    .map(function (ch) { return Math.round(ch * 255).toString(16) })
    // Make sure each channel is two digits long
    .map(zeroPadHex)
    .join('')
}

},{}]},{},[2])(2)
});