pie.html 2.4 KB

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  1. <!DOCTYPE html>
  2. <html lang="en-US">
  3. <head>
  4. <meta charset="utf-8">
  5. <meta http-equiv="X-UA-Compatible" content="IE=Edge">
  6. <meta name="viewport" content="width=device-width, initial-scale=1">
  7. <title>Scriptable > Pie | Chart.js sample</title>
  8. <link rel="stylesheet" type="text/css" href="../style.css">
  9. <script src="../../dist/Chart.min.js"></script>
  10. <script src="../utils.js"></script>
  11. </head>
  12. <body>
  13. <div class="content">
  14. <div class="wrapper"><canvas id="chart-0"></canvas></div>
  15. <div class="toolbar">
  16. <button onclick="randomize()">Randomize</button>
  17. <button onclick="addDataset()">Add Dataset</button>
  18. <button onclick="removeDataset()">Remove Dataset</button>
  19. <button onclick="togglePieDoughnut()">Toggle Doughnut View</button>
  20. </div>
  21. </div>
  22. <script>
  23. var DATA_COUNT = 5;
  24. var utils = Samples.utils;
  25. utils.srand(110);
  26. function colorize(opaque, hover, ctx) {
  27. var v = ctx.dataset.data[ctx.dataIndex];
  28. var c = v < -50 ? '#D60000'
  29. : v < 0 ? '#F46300'
  30. : v < 50 ? '#0358B6'
  31. : '#44DE28';
  32. var opacity = hover ? 1 - Math.abs(v / 150) - 0.2 : 1 - Math.abs(v / 150);
  33. return opaque ? c : utils.transparentize(c, opacity);
  34. }
  35. function hoverColorize(ctx) {
  36. return colorize(false, true, ctx);
  37. }
  38. function generateData() {
  39. return utils.numbers({
  40. count: DATA_COUNT,
  41. min: -100,
  42. max: 100
  43. });
  44. }
  45. var data = {
  46. datasets: [{
  47. data: generateData(),
  48. }]
  49. };
  50. var options = {
  51. legend: false,
  52. tooltips: false,
  53. elements: {
  54. arc: {
  55. backgroundColor: colorize.bind(null, false, false),
  56. hoverBackgroundColor: hoverColorize
  57. }
  58. }
  59. };
  60. var chart = new Chart('chart-0', {
  61. type: 'pie',
  62. data: data,
  63. options: options
  64. });
  65. // eslint-disable-next-line no-unused-vars
  66. function randomize() {
  67. chart.data.datasets.forEach(function(dataset) {
  68. dataset.data = generateData();
  69. });
  70. chart.update();
  71. }
  72. // eslint-disable-next-line no-unused-vars
  73. function addDataset() {
  74. chart.data.datasets.push({
  75. data: generateData()
  76. });
  77. chart.update();
  78. }
  79. // eslint-disable-next-line no-unused-vars
  80. function removeDataset() {
  81. chart.data.datasets.shift();
  82. chart.update();
  83. }
  84. // eslint-disable-next-line no-unused-vars
  85. function togglePieDoughnut() {
  86. if (chart.options.cutoutPercentage) {
  87. chart.options.cutoutPercentage = 0;
  88. } else {
  89. chart.options.cutoutPercentage = 50;
  90. }
  91. chart.update();
  92. }
  93. </script>
  94. </body>
  95. </html>