utils.js 3.2 KB

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  1. 'use strict';
  2. window.chartColors = {
  3. primary: 'rgb(102, 110, 232)',
  4. success: 'rgb(40, 208, 148)',
  5. info: 'rgb(30, 159, 242)',
  6. warning: 'rgb(255, 145, 73)',
  7. danger: 'rgb(255, 73, 97)',
  8. purple: 'rgb(156, 39, 176)',
  9. grey: 'rgb(228, 231, 234)'
  10. };
  11. (function(global) {
  12. var Months = [
  13. 'January',
  14. 'February',
  15. 'March',
  16. 'April',
  17. 'May',
  18. 'June',
  19. 'July',
  20. 'August',
  21. 'September',
  22. 'October',
  23. 'November',
  24. 'December'
  25. ];
  26. var COLORS = [
  27. '#2196F3',
  28. '#FF9149',
  29. '#E91E63',
  30. '#00BCD4',
  31. '#acc236',
  32. '#4ad2ff',
  33. '#28D094',
  34. '#465161',
  35. '#9C27B0'
  36. ];
  37. var Samples = global.Samples || (global.Samples = {});
  38. var Color = global.Color;
  39. Samples.utils = {
  40. // Adapted from http://indiegamr.com/generate-repeatable-random-numbers-in-js/
  41. srand: function(seed) {
  42. this._seed = seed;
  43. },
  44. rand: function(min, max) {
  45. var seed = this._seed;
  46. min = min === undefined ? 0 : min;
  47. max = max === undefined ? 1 : max;
  48. this._seed = (seed * 9301 + 49297) % 233280;
  49. return min + (this._seed / 233280) * (max - min);
  50. },
  51. numbers: function(config) {
  52. var cfg = config || {};
  53. var min = cfg.min || 0;
  54. var max = cfg.max || 1;
  55. var from = cfg.from || [];
  56. var count = cfg.count || 8;
  57. var decimals = cfg.decimals || 8;
  58. var continuity = cfg.continuity || 1;
  59. var dfactor = Math.pow(10, decimals) || 0;
  60. var data = [];
  61. var i, value;
  62. for (i = 0; i < count; ++i) {
  63. value = (from[i] || 0) + this.rand(min, max);
  64. if (this.rand() <= continuity) {
  65. data.push(Math.round(dfactor * value) / dfactor);
  66. } else {
  67. data.push(null);
  68. }
  69. }
  70. return data;
  71. },
  72. labels: function(config) {
  73. var cfg = config || {};
  74. var min = cfg.min || 0;
  75. var max = cfg.max || 100;
  76. var count = cfg.count || 8;
  77. var step = (max - min) / count;
  78. var decimals = cfg.decimals || 8;
  79. var dfactor = Math.pow(10, decimals) || 0;
  80. var prefix = cfg.prefix || '';
  81. var values = [];
  82. var i;
  83. for (i = min; i < max; i += step) {
  84. values.push(prefix + Math.round(dfactor * i) / dfactor);
  85. }
  86. return values;
  87. },
  88. months: function(config) {
  89. var cfg = config || {};
  90. var count = cfg.count || 12;
  91. var section = cfg.section;
  92. var values = [];
  93. var i, value;
  94. for (i = 0; i < count; ++i) {
  95. value = Months[Math.ceil(i) % 12];
  96. values.push(value.substring(0, section));
  97. }
  98. return values;
  99. },
  100. color: function(index) {
  101. return COLORS[index % COLORS.length];
  102. },
  103. transparentize: function(color, opacity) {
  104. var alpha = opacity === undefined ? 0.5 : 1 - opacity;
  105. return Color(color).alpha(alpha).rgbString();
  106. }
  107. };
  108. // DEPRECATED
  109. window.randomScalingFactor = function() {
  110. return Math.round(Samples.utils.rand(-100, 100));
  111. };
  112. // INITIALIZATION
  113. Samples.utils.srand(Date.now());
  114. // Google Analytics
  115. /* eslint-disable */
  116. if (document.location.hostname.match(/^(www\.)?chartjs\.org$/)) {
  117. (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  118. (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  119. m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  120. })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
  121. ga('create', 'UA-28909194-3', 'auto');
  122. ga('send', 'pageview');
  123. }
  124. /* eslint-enable */
  125. }(this));