Mon 21 Jul 22:43:21 CEST 2025
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<!DOCTYPE html>
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<!-- saved from url=(0044)http://kenedict.com/networks/worldcup14/vis/ , thanks Andre!-->
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<html><head><meta http-equiv="content-type" content="text/html; charset=UTF8">
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<title>Network | Static smooth curves - World Cup Network</title>
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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 src="../datasources/WorldCup2014.js"></script>
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<style type="text/css">
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#mynetwork {
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width: 800px;
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height: 800px;
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border: 1px solid lightgray;
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}
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</style>
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<script src="../../googleAnalytics.js"></script>
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</head>
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<body>
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<h2>Dynamic Data - Neighbourhood Highlight</h2>
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<div style="width:800px; font-size:14px;">
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This example shows the power of the DataSet. Once a node is clicked, all nodes are greyed out except for the first and second order connected nodes.
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In this example we show how you can determine the order of connection per node as well as applying individual styling to the nodes based on whether or not
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they are connected to the selected node. The code doing the highlighting only takes about 1ms, the rest of the time is the redrawing of the network (9200 edges..).
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<br /><br />
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</div>
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<div id="mynetwork"></div>
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<script type="text/javascript">
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var network;
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var allNodes;
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var highlightActive = false;
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var nodesDataset = new vis.DataSet(nodes); // these come from WorldCup2014.js
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var edgesDataset = new vis.DataSet(edges); // these come from WorldCup2014.js
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function redrawAll() {
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var container = document.getElementById('mynetwork');
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var options = {
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nodes: {
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shape: 'dot',
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scaling: {
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min: 10,
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max: 30,
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label: {
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min: 8,
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max: 30,
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drawThreshold: 12,
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maxVisible: 20
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}
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},
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font: {
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size: 12,
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face: 'Tahoma'
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}
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},
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edges: {
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width: 0.15,
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color: {inherit: 'from'},
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smooth: {
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type: 'continuous'
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}
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},
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physics: false,
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interaction: {
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tooltipDelay: 200,
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hideEdgesOnDrag: true
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}
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};
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var data = {nodes:nodesDataset, edges:edgesDataset} // Note: data is coming from ./datasources/WorldCup2014.js
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network = new vis.Network(container, data, options);
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// get a JSON object
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allNodes = nodesDataset.get({returnType:"Object"});
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network.on("click",neighbourhoodHighlight);
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}
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function neighbourhoodHighlight(params) {
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// if something is selected:
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if (params.nodes.length > 0) {
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highlightActive = true;
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var i,j;
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var selectedNode = params.nodes[0];
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var degrees = 2;
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// mark all nodes as hard to read.
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for (var nodeId in allNodes) {
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allNodes[nodeId].color = 'rgba(200,200,200,0.5)';
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if (allNodes[nodeId].hiddenLabel === undefined) {
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allNodes[nodeId].hiddenLabel = allNodes[nodeId].label;
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allNodes[nodeId].label = undefined;
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}
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}
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var connectedNodes = network.getConnectedNodes(selectedNode);
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var allConnectedNodes = [];
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// get the second degree nodes
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for (i = 1; i < degrees; i++) {
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for (j = 0; j < connectedNodes.length; j++) {
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allConnectedNodes = allConnectedNodes.concat(network.getConnectedNodes(connectedNodes[j]));
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}
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}
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// all second degree nodes get a different color and their label back
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for (i = 0; i < allConnectedNodes.length; i++) {
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allNodes[allConnectedNodes[i]].color = 'rgba(150,150,150,0.75)';
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if (allNodes[allConnectedNodes[i]].hiddenLabel !== undefined) {
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allNodes[allConnectedNodes[i]].label = allNodes[allConnectedNodes[i]].hiddenLabel;
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allNodes[allConnectedNodes[i]].hiddenLabel = undefined;
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}
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}
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// all first degree nodes get their own color and their label back
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for (i = 0; i < connectedNodes.length; i++) {
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allNodes[connectedNodes[i]].color = undefined;
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if (allNodes[connectedNodes[i]].hiddenLabel !== undefined) {
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allNodes[connectedNodes[i]].label = allNodes[connectedNodes[i]].hiddenLabel;
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allNodes[connectedNodes[i]].hiddenLabel = undefined;
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}
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}
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// the main node gets its own color and its label back.
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allNodes[selectedNode].color = undefined;
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if (allNodes[selectedNode].hiddenLabel !== undefined) {
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allNodes[selectedNode].label = allNodes[selectedNode].hiddenLabel;
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allNodes[selectedNode].hiddenLabel = undefined;
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}
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}
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else if (highlightActive === true) {
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// reset all nodes
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for (var nodeId in allNodes) {
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allNodes[nodeId].color = undefined;
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if (allNodes[nodeId].hiddenLabel !== undefined) {
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allNodes[nodeId].label = allNodes[nodeId].hiddenLabel;
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allNodes[nodeId].hiddenLabel = undefined;
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}
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}
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highlightActive = false
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}
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// transform the object into an array
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var updateArray = [];
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for (nodeId in allNodes) {
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if (allNodes.hasOwnProperty(nodeId)) {
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updateArray.push(allNodes[nodeId]);
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}
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}
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nodesDataset.update(updateArray);
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}
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redrawAll()
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</script>
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</body></html>
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