bar.html 3.2 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: 'Bar',
  29. };
  30. </script>
  31. <script id="script-init">
  32. var DATA_COUNT = 10;
  33. var labels = [];
  34. Samples.srand(2);
  35. for (var i = 0; i < DATA_COUNT; ++i) {
  36. labels.push('' + i);
  37. }
  38. Chart.helpers.merge(Chart.defaults.global, {
  39. aspectRatio: 4/3,
  40. tooltips: false,
  41. layout: {
  42. padding: {
  43. top: 42,
  44. right: 16,
  45. bottom: 32,
  46. left: 8
  47. }
  48. },
  49. elements: {
  50. line: {
  51. fill: false
  52. },
  53. point: {
  54. hoverRadius: 7,
  55. radius: 5
  56. }
  57. },
  58. plugins: {
  59. legend: false,
  60. title: false
  61. }
  62. });
  63. </script>
  64. <script id="script-construct">
  65. var chart = new Chart('chart-0', {
  66. type: 'bar',
  67. data: {
  68. labels: labels,
  69. datasets: [{
  70. backgroundColor: Samples.color(0),
  71. data: Samples.numbers({
  72. count: DATA_COUNT,
  73. min: 0,
  74. max: 100
  75. }),
  76. datalabels: {
  77. align: 'end',
  78. anchor: 'start'
  79. }
  80. }, {
  81. backgroundColor: Samples.color(1),
  82. data: Samples.numbers({
  83. count: DATA_COUNT,
  84. min: 0,
  85. max: 100
  86. }),
  87. datalabels: {
  88. align: 'center',
  89. anchor: 'center'
  90. }
  91. }, {
  92. backgroundColor: Samples.color(2),
  93. data: Samples.numbers({
  94. count: DATA_COUNT,
  95. min: 0,
  96. max: 100
  97. }),
  98. datalabels: {
  99. anchor: 'end',
  100. align: 'start',
  101. }
  102. }]
  103. },
  104. options: {
  105. plugins: {
  106. datalabels: {
  107. color: 'white',
  108. display: function(context) {
  109. return context.dataset.data[context.dataIndex] > 15;
  110. },
  111. font: {
  112. weight: 'bold'
  113. },
  114. formatter: Math.round
  115. }
  116. },
  117. scales: {
  118. xAxes: [{
  119. stacked: true
  120. }],
  121. yAxes: [{
  122. stacked: true
  123. }]
  124. }
  125. }
  126. });
  127. </script>
  128. <script id="script-actions">
  129. function randomize() {
  130. chart.data.datasets.forEach(function(dataset, i) {
  131. dataset.backgroundColor = Samples.color();
  132. dataset.data = dataset.data.map(function(value) {
  133. return Samples.rand(0, 100);
  134. });
  135. });
  136. chart.update();
  137. }
  138. function addData() {
  139. chart.data.labels.push(chart.data.labels.length);
  140. chart.data.datasets.forEach(function(dataset, i) {
  141. dataset.data.push(Samples.rand(0, 100));
  142. });
  143. chart.update();
  144. }
  145. function removeData() {
  146. chart.data.labels.shift();
  147. chart.data.datasets.forEach(function(dataset, i) {
  148. dataset.data.shift();
  149. });
  150. chart.update();
  151. }
  152. </script>
  153. </body>
  154. </html>