polar.html 3.0 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. <link rel="stylesheet" type="text/css" href="../style.css">
  8. <link rel="icon" type="image/ico" href="../favicon.ico">
  9. <script src="https://cdn.jsdelivr.net/npm/chart.js@2.7.0/dist/Chart.min.js"></script>
  10. <script src="../../dist/chartjs-plugin-datalabels.js"></script>
  11. <script src="../utils.js"></script>
  12. </head>
  13. <body>
  14. <div id="side">
  15. <div id="header"></div>
  16. <div id="actions">
  17. <button onclick="randomize(this)">Randomize</button>
  18. <button onclick="addData(this)">Add Data</button>
  19. <button onclick="removeData(this)">Remove Data</button>
  20. </div>
  21. </div>
  22. <div id="charts">
  23. <div class="wrapper"><canvas id="chart-0"></canvas></div>
  24. </div>
  25. <script>
  26. var SAMPLE_INFO = {
  27. group: 'Charts',
  28. name: 'Polar Area',
  29. };
  30. </script>
  31. <script id="script-init">
  32. var DATA_COUNT = 10;
  33. var labels = [];
  34. Samples.srand(16);
  35. for (var i = 0; i < DATA_COUNT; ++i) {
  36. labels.push('' + i);
  37. }
  38. Chart.helpers.merge(Chart.defaults.global, {
  39. maintainAspectRatio: false,
  40. tooltips: false,
  41. layout: {
  42. padding: 16
  43. },
  44. elements: {
  45. line: {
  46. fill: false
  47. },
  48. point: {
  49. hoverRadius: 7,
  50. radius: 5
  51. }
  52. },
  53. plugins: {
  54. legend: false,
  55. title: false
  56. }
  57. });
  58. </script>
  59. <script id="script-construct">
  60. var chart = new Chart('chart-0', {
  61. type: 'polarArea',
  62. data: {
  63. labels: labels,
  64. datasets: [{
  65. backgroundColor: Samples.color(0),
  66. data: Samples.numbers({
  67. count: DATA_COUNT,
  68. min: 0,
  69. max: 100
  70. })
  71. }, {
  72. backgroundColor: Samples.color(1),
  73. data: Samples.numbers({
  74. count: DATA_COUNT,
  75. min: 0,
  76. max: 100
  77. })
  78. }, {
  79. backgroundColor: Samples.color(2),
  80. data: Samples.numbers({
  81. count: DATA_COUNT,
  82. min: 0,
  83. max: 100
  84. })
  85. }]
  86. },
  87. options: {
  88. plugins: {
  89. datalabels: {
  90. anchor: 'end',
  91. backgroundColor: function(context) {
  92. return context.dataset.backgroundColor;
  93. },
  94. borderColor: 'white',
  95. borderRadius: 25,
  96. borderWidth: 2,
  97. color: 'white',
  98. font: {
  99. weight: 'bold'
  100. },
  101. formatter: Math.round
  102. }
  103. }
  104. }
  105. });
  106. </script>
  107. <script id="script-actions">
  108. function randomize() {
  109. chart.data.datasets.forEach(function(dataset, i) {
  110. dataset.backgroundColor = Samples.color();
  111. dataset.data = dataset.data.map(function(value) {
  112. return Samples.rand(0, 100);
  113. });
  114. });
  115. chart.update();
  116. }
  117. function addData() {
  118. chart.data.labels.push(chart.data.labels.length);
  119. chart.data.datasets.forEach(function(dataset, i) {
  120. dataset.data.push(Samples.rand(0, 100));
  121. });
  122. chart.update();
  123. }
  124. function removeData() {
  125. chart.data.labels.shift();
  126. chart.data.datasets.forEach(function(dataset, i) {
  127. dataset.data.shift();
  128. });
  129. chart.update();
  130. }
  131. </script>
  132. </body>
  133. </html>