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136 lines
3.8 KiB
136 lines
3.8 KiB
<!doctype html>
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<html>
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<head>
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<title>Network | Navigation</title>
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<style type="text/css">
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body {
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font: 10pt sans;
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}
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#mynetwork {
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width: 600px;
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height: 600px;
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margin:100px;
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border: 1px solid lightgray;
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}
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table.legend_table {
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border-collapse: collapse;
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}
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table.legend_table td,
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table.legend_table th {
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border: 1px solid #d3d3d3;
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padding: 10px;
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}
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table.legend_table td {
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text-align: center;
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width:110px;
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}
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</style>
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<script type="text/javascript" src="../../dist/vis.js"></script>
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<link type="text/css" rel="stylesheet" href="../../dist/vis.css">
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<script type="text/javascript">
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var nodes = null;
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var edges = null;
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var network = null;
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function destroy() {
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if (network !== null) {
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network.destroy();
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network = null;
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}
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}
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function draw() {
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destroy();
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// create an array with nodes
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var nodes = [
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{id: 1, label: 'Node 1'},
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{id: 2, label: 'Node 2'},
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{id: 3, label: 'Node 3'},
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{id: 4, label: 'Node 4'},
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{id: 5, label: 'Node 5'}
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];
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// create an array with edges
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var edges = new vis.DataSet([
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{from: 1, to: 1},
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{from: 1, to: 3},
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{from: 1, to: 2},
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{from: 2, to: 4},
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{from: 2, to: 5}
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]);
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// create a network
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var container = document.getElementById('mynetwork');
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var data = {
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nodes: nodes,
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edges: edges
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};
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var options = {
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interaction: {
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navigationButtons: true,
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keyboard: true
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}
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};
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network = new vis.Network(container, data, options);
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// add event listeners
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network.on('select', function(params) {
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document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
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});
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}
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</script>
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<script src="../googleAnalytics.js"></script>
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</head>
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<body onload="draw();">
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<h2>Navigation controls and keyboad navigation</h2>
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<div style="width: 800px; font-size:14px; text-align: justify;">
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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 />
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<table class="legend_table">
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<tr>
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<th>Icons: </th>
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<td><img src="../../dist/img/network/upArrow.png" /> </td>
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<td><img src="../../dist/img/network/downArrow.png" /> </td>
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<td><img src="../../dist/img/network/leftArrow.png" /> </td>
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<td><img src="../../dist/img/network/rightArrow.png" /> </td>
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<td><img src="../../dist/img/network/plus.png" /> </td>
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<td><img src="../../dist/img/network/minus.png" /> </td>
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<td><img src="../../dist/img/network/zoomExtends.png" /> </td>
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</tr>
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<tr>
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<th>Keyboard shortcuts:</th>
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<td><div>Up arrow</div></td>
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<td><div>Down arrow</div></td>
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<td><div>Left arrow</div></td>
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<td><div>Right arrow</div></td>
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<td><div>=<br />[<br />Page up</div></td>
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<td><div>-<br />]<br />Page down</div></td>
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<td><div>None</div></td>
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</tr>
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<tr>
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<th>Description:</th>
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<td>Move up</td>
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<td>Move down</td>
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<td>Move left</td>
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<td>Move right</td>
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<td>Zoom in</td>
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<td>Zoom out</td>
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<td>Zoom extent</td>
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</tr>
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</table>
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<br />
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Apart from clicking the icons, you can also navigate using the keyboard. The buttons are in table above.
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Zoom Extends changes the zoom and position of the camera to encompass all visible nodes. <u>To correctly display the navigation icons, the <b>vis.css</b> file must be included.</u>
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The user is free to alter or overload the CSS classes but without them the navigation icons are not visible.
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</div>
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<div id="mynetwork"></div>
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<p id="selection"></p>
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</body>
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</html>
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