vis.js is a dynamic, browser-based visualization library
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  1. <!doctype html>
  2. <html>
  3. <head>
  4. <title>Network | Random nodes</title>
  5. <style type="text/css">
  6. body {
  7. font: 10pt sans;
  8. }
  9. #mynetwork {
  10. width: 600px;
  11. height: 600px;
  12. border: 1px solid lightgray;
  13. }
  14. </style>
  15. <script type="text/javascript" src="../../dist/vis.js"></script>
  16. <link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
  17. <script type="text/javascript">
  18. var nodes = null;
  19. var edges = null;
  20. var network = null;
  21. function draw() {
  22. nodes = [];
  23. edges = [];
  24. var connectionCount = [];
  25. // randomly create some nodes and edges
  26. var nodeCount = document.getElementById('nodeCount').value;
  27. for (var i = 0; i < nodeCount; i++) {
  28. nodes.push({
  29. id: i,
  30. label: String(i)
  31. });
  32. connectionCount[i] = 0;
  33. // create edges in a scale-free-network way
  34. if (i == 1) {
  35. var from = i;
  36. var to = 0;
  37. edges.push({
  38. from: from,
  39. to: to
  40. });
  41. connectionCount[from]++;
  42. connectionCount[to]++;
  43. }
  44. else if (i > 1) {
  45. var conn = edges.length * 2;
  46. var rand = Math.floor(Math.random() * conn);
  47. var cum = 0;
  48. var j = 0;
  49. while (j < connectionCount.length && cum < rand) {
  50. cum += connectionCount[j];
  51. j++;
  52. }
  53. var from = i;
  54. var to = j;
  55. edges.push({
  56. from: from,
  57. to: to
  58. });
  59. connectionCount[from]++;
  60. connectionCount[to]++;
  61. }
  62. }
  63. // create a network
  64. var container = document.getElementById('mynetwork');
  65. var data = {
  66. nodes: nodes,
  67. edges: edges
  68. };
  69. var options = {stabilize:false};
  70. network = new vis.Network(container, data, options);
  71. // add event listeners
  72. network.on('select', function(params) {
  73. document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
  74. console.log(params)
  75. });
  76. network.on('stabilized', function (params) {
  77. document.getElementById('stabilization').innerHTML = 'Stabilization took ' + params.iterations + ' iterations.';
  78. doFocus = false;
  79. });
  80. network.focusOnNode(0,{animation:false, locked: true});
  81. }
  82. </script>
  83. </head>
  84. <body onload="draw();">
  85. <form onsubmit="draw(); return false;">
  86. <label for="nodeCount">Number of nodes:</label>
  87. <input id="nodeCount" type="text" value="25" style="width: 50px;">
  88. <input type="submit" value="Go">
  89. </form>
  90. <br>
  91. <div id="mynetwork"></div>
  92. <p id="selection"></p>
  93. <p id="stabilization"></p>
  94. </body>
  95. </html>