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148 lines
4.3 KiB
148 lines
4.3 KiB
<!doctype html>
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<html>
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<head>
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<title>Network | Hierarchical layout</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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border: 1px solid lightgray;
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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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<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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// randomly create some nodes and edges
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var nodeCount = document.getElementById('nodeCount').value;
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//var data = getScaleFreeNetwork(nodeCount)
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var nodes = [
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{id: 4, label: '4'},
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{id: 5, label: '5'},
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{id: 7, label: '7'},
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{id: 9, label: '9'},
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{id: 10, label: '10'},
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{id: 101, label: '101'},
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{id: 102, label: '102'},
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{id: 103, label: '103'}
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];
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// create an array with edges
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var edges = [
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{from: 10, to: 4},
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{from: 7, to: 5},
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{from: 9, to: 7},
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{from: 10, to: 9},
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{from: 101, to: 102},
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{from: 102, to: 103}
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];
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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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// create a network
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var container = document.getElementById('mynetwork');
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var directionInput = document.getElementById("direction").value;
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var options = {
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interaction: {
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navigationButtons: true
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},
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layout: {
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hierarchical: {
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direction: directionInput
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}
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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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function changeOptions(directionInputValue) {
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network.setOptions({
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layout: {
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hierarchical: {
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direction: directionInputValue
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}
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}
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});
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}
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</script>
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</head>
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<body onload="draw();">
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<h2>Hierarchical Layout - Scale-Free-Network</h2>
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<div style="width:700px; font-size:14px; text-align: justify;">
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This example shows the randomly generated <b>scale-free-network</b> set of nodes and connected edges from example 2.
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In this example, hierarchical layout has been enabled and the vertical levels are determined automatically.
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</div>
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<br/>
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<form onsubmit="draw(); return false;">
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<label for="nodeCount">Number of nodes:</label>
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<input id="nodeCount" type="text" value="25" style="width: 50px;">
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<input type="submit" value="Go">
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</form>
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<p>
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<input type="button" id="btn-UD" value="Up-Down">
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<input type="button" id="btn-DU" value="Down-Up">
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<input type="button" id="btn-LR" value="Left-Right">
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<input type="button" id="btn-RL" value="Right-Left">
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<input type="hidden" id='direction' value="UD">
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</p>
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<script language="javascript">
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var directionInput = document.getElementById("direction");
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var btnUD = document.getElementById("btn-UD");
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btnUD.onclick = function () {
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directionInput.value = "UD";
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changeOptions(directionInput.value);
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}
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var btnDU = document.getElementById("btn-DU");
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btnDU.onclick = function () {
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directionInput.value = "DU";
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changeOptions(directionInput.value);
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};
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var btnLR = document.getElementById("btn-LR");
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btnLR.onclick = function () {
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directionInput.value = "LR";
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changeOptions(directionInput.value);
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};
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var btnRL = document.getElementById("btn-RL");
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btnRL.onclick = function () {
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directionInput.value = "RL";
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changeOptions(directionInput.value);
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};
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</script>
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<br>
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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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