|
|
- <!doctype html>
- <html>
- <head>
- <title>Graph | Navigation</title>
-
- <style type="text/css">
- body {
- font: 10pt sans;
- }
- #mygraph {
- width: 600px;
- height: 600px;
- border: 1px solid lightgray;
- }
- table.legend_table {
- font-size: 11px;
- border-width:1px;
- border-color:#d3d3d3;
- border-style:solid;
- }
- table.legend_table,td {
- border-width:1px;
- border-color:#d3d3d3;
- border-style:solid;
- padding: 2px;
- }
- div.table_content {
- width:80px;
- text-align:center;
- }
- div.table_description {
- width:100px;
- }
- </style>
-
- <script type="text/javascript" src="../../dist/vis.js"></script>
- <link type="text/css" rel="stylesheet" href="../../dist/vis.css">
-
- <script type="text/javascript">
- var nodes = null;
- var edges = null;
- var graph = null;
-
- function draw() {
- nodes = [];
- edges = [];
- var connectionCount = [];
-
- // randomly create some nodes and edges
- var nodeCount = document.getElementById('nodeCount').value;
- for (var i = 0; i < nodeCount; i++) {
- nodes.push({
- id: i,
- label: String(i)
- });
-
- connectionCount[i] = 0;
-
- // create edges in a scale-free-graph way
- if (i == 1) {
- var from = i;
- var to = 0;
- edges.push({
- from: from,
- to: to
- });
- connectionCount[from]++;
- connectionCount[to]++;
- }
- else if (i > 1) {
- var conn = edges.length * 2;
- var rand = Math.floor(Math.random() * conn);
- var cum = 0;
- var j = 0;
- while (j < connectionCount.length && cum < rand) {
- cum += connectionCount[j];
- j++;
- }
-
- var from = i;
- var to = j;
- edges.push({
- from: from,
- to: to
- });
- connectionCount[from]++;
- connectionCount[to]++;
- }
- }
-
- // create a graph
- var container = document.getElementById('mygraph');
- var data = {
- nodes: nodes,
- edges: edges
- };
- /*
- var options = {
- nodes: {
- shape: 'circle'
- },
- edges: {
- length: 50
- },
- stabilize: false
- };
- */
- var options = {
- edges: {
- length: 50
- },
- stabilize: false,
- navigation: true,
- keyboard: true
- };
- graph = new vis.Graph(container, data, options);
-
- // add event listeners
- graph.on('select', function(params) {
- document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
- });
- }
- </script>
- </head>
-
- <body onload="draw();">
- <h2>Navigation controls and keyboad navigation</h2>
- <div style="width: 700px; font-size:14px;">
- This example is the same as example 2, except for the navigation controls that have been activated. The navigation controls are described below. <br /><br />
- <table class="legend_table">
- <tr>
- <td>Icons: </td>
- <td><div class="table_content"><img src="../../dist/img/graph/upArrow.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/downArrow.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/leftArrow.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/rightArrow.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/plus.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/minus.png" /> </div></td>
- <td><div class="table_content"><img src="../../dist/img/graph/zoomExtends.png" /> </div></td>
- </tr>
- <tr>
- <td><div class="table_description">Keyboard shortcuts:</div></td>
- <td><div class="table_content">Up arrow</div></td>
- <td><div class="table_content">Down arrow</div></td>
- <td><div class="table_content">Left arrow</div></td>
- <td><div class="table_content">Right arrow</div></td>
- <td><div class="table_content">=<br />[<br />Page up</div></td>
- <td><div class="table_content">-<br />]<br />Page down</div></td>
- <td><div class="table_content">None</div></td>
- </tr>
- <tr>
- <td><div class="table_description">Description:</div></td>
- <td><div class="table_content">Move up</div></td>
- <td><div class="table_content">Move down</div></td>
- <td><div class="table_content">Move left</div></td>
- <td><div class="table_content">Move right</div></td>
- <td><div class="table_content">Zoom in</div></td>
- <td><div class="table_content">Zoom out</div></td>
- <td><div class="table_content">Zoom extent</div></td>
- </tr>
- </table>
- <br />
- Apart from clicking the icons, you can also navigate using the keyboard. The buttons are in table above.
- Zoom Extends changes the zoom and position of the camera to encompass all visible nodes. To correctly display the navigation icons, the <b>vis.css</b> file must be included.
- The user is free to alter or overload the CSS classes but without them the navigation icons are not visible.
-
-
- </div>
- <br />
-
- <form onsubmit="draw(); return false;">
- <label for="nodeCount">Number of nodes:</label>
- <input id="nodeCount" type="text" value="25" style="width: 50px;">
- <input type="submit" value="Go">
- </form>
- <br>
-
- <div id="mygraph"></div>
-
- <p id="selection"></p>
- </body>
- </html>
|
