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217 lines
7.1 KiB
217 lines
7.1 KiB
<!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="./data/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 20ms, 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 nodes = new vis.DataSet();
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var edges = new vis.DataSet();
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function redrawAll() {
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nodes.clear();
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edges.clear();
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network = null;
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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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radiusMin: 10,
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radiusMax: 30,
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fontSize: 12,
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fontFace: "Tahoma",
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scaleFontWithValue:true,
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fontSizeMin:8,
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fontSizeMax:20,
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fontThreshold:12,
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fontSizeMaxVisible:20
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},
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edges: {
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width: 0.15,
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inheritColor: "from"
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},
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tooltip: {
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delay: 200,
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fontSize: 12,
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color: {
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background: "#fff"
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}
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},
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smoothCurves: {dynamic:false, type: "continuous"},
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stabilize: false,
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physics: {barnesHut: {gravitationalConstant: 0, centralGravity: 0, springConstant: 0}},
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hideEdgesOnDrag: true
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};
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// Note: data is coming from ./data/WorldCup2014.js
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network = new vis.Network(container, data, options);
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network.on("click",onClick);
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}
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function onClick(selectedItems) {
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var nodeId;
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var degrees = 2;
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// we get all data from the dataset once to avoid updating multiple times.
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var allNodes = nodes.get({returnType:"Object"});
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if (selectedItems.nodes.length == 0) {
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// restore on unselect
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for (nodeId in allNodes) {
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if (allNodes.hasOwnProperty(nodeId)) {
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allNodes[nodeId].color = undefined;
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if (allNodes[nodeId].oldLabel !== undefined) {
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allNodes[nodeId].label = allNodes[nodeId].oldLabel;
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allNodes[nodeId].oldLabel = undefined;
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}
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allNodes[nodeId]['levelOfSeperation'] = undefined;
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allNodes[nodeId]['inConnectionList'] = undefined;
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}
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}
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}
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else {
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// we clear the level of separation in all nodes.
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clearLevelOfSeperation(allNodes);
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// we will now start to collect all the connected nodes we want to highlight.
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var connectedNodes = selectedItems.nodes;
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// we can store them into levels of separation and we could then later use this to define a color per level
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// any data can be added to a node, this is just stored in the nodeObject.
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storeLevelOfSeperation(connectedNodes,0, allNodes);
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for (var i = 1; i < degrees + 1; i++) {
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appendConnectedNodes(connectedNodes);
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storeLevelOfSeperation(connectedNodes, i, allNodes);
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}
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for (nodeId in allNodes) {
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if (allNodes.hasOwnProperty(nodeId)) {
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if (allNodes[nodeId]['inConnectionList'] == true) {
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if (allNodes[nodeId]['levelOfSeperation'] !== undefined) {
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if (allNodes[nodeId]['levelOfSeperation'] >= 2) {
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allNodes[nodeId].color = 'rgba(150,150,150,0.75)';
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}
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else {
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allNodes[nodeId].color = undefined;
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}
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}
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else {
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allNodes[nodeId].color = undefined;
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}
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if (allNodes[nodeId].oldLabel !== undefined) {
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allNodes[nodeId].label = allNodes[nodeId].oldLabel;
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allNodes[nodeId].oldLabel = undefined;
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}
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}
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else {
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allNodes[nodeId].color = 'rgba(200,200,200,0.5)';
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if (allNodes[nodeId].oldLabel === undefined) {
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allNodes[nodeId].oldLabel = allNodes[nodeId].label;
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allNodes[nodeId].label = "";
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}
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}
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}
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}
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}
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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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nodes.update(updateArray);
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}
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/**
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* update the allNodes object with the level of separation.
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* Arrays are passed by reference, we do not need to return them because we are working in the same object.
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*/
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function storeLevelOfSeperation(connectedNodes, level, allNodes) {
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for (var i = 0; i < connectedNodes.length; i++) {
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var nodeId = connectedNodes[i];
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if (allNodes[nodeId]['levelOfSeperation'] === undefined) {
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allNodes[nodeId]['levelOfSeperation'] = level;
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}
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allNodes[nodeId]['inConnectionList'] = true;
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}
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}
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function clearLevelOfSeperation(allNodes) {
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for (var nodeId in allNodes) {
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if (allNodes.hasOwnProperty(nodeId)) {
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allNodes[nodeId]['levelOfSeperation'] = undefined;
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allNodes[nodeId]['inConnectionList'] = undefined;
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}
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}
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}
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/**
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* Add the connected nodes to the list of nodes we already have
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*
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*
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*/
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function appendConnectedNodes(sourceNodes) {
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var tempSourceNodes = [];
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// first we make a copy of the nodes so we do not extend the array we loop over.
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for (var i = 0; i < sourceNodes.length; i++) {
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tempSourceNodes.push(sourceNodes[i])
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}
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for (var i = 0; i < tempSourceNodes.length; i++) {
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var nodeId = tempSourceNodes[i];
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if (sourceNodes.indexOf(nodeId) == -1) {
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sourceNodes.push(nodeId);
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}
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var connectedNodes = network.getConnectedNodes(nodeId);
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addUnique(connectedNodes,sourceNodes);
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}
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tempSourceNodes = null;
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}
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/**
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* Join two arrays without duplicates
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* @param fromArray
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* @param toArray
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*/
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function addUnique(fromArray, toArray) {
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for (var i = 0; i < fromArray.length; i++) {
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if (toArray.indexOf(fromArray[i]) == -1) {
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toArray.push(fromArray[i]);
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}
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}
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}
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redrawAll()
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</script>
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</body></html>
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