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- <!DOCTYPE html>
- <!-- saved from url=(0044)http://kenedict.com/networks/worldcup14/vis/ , thanks Andre!-->
- <html><head><meta http-equiv="content-type" content="text/html; charset=UTF8">
- <title>Network | Static smooth curves - World Cup Network</title>
-
- <script type="text/javascript" src="../../dist/vis.js"></script>
- <link type="text/css" rel="stylesheet" href="../../dist/vis.css">
-
- <script src="./data/WorldCup2014.js"></script>
-
- <style type="text/css">
- #mynetwork {
- width: 800px;
- height: 800px;
- border: 1px solid lightgray;
- }
- </style>
- <script src="../googleAnalytics.js"></script>
- </head>
-
- <body>
-
- <h2>Dynamic Data - Neighbourhood Highlight</h2>
- <div style="width:800px; font-size:14px;">
- 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.
- 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
- 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..).
- <br /><br />
- </div>
-
- <div id="mynetwork"></div>
-
- <script type="text/javascript">
- var network;
-
- var nodes = new vis.DataSet();
- var edges = new vis.DataSet();
-
- function redrawAll() {
- nodes.clear();
- edges.clear();
-
- network = null;
-
- var container = document.getElementById('mynetwork');
- var options = {
- nodes: {
- shape: 'dot',
- radiusMin: 10,
- radiusMax: 30,
- fontSize: 12,
- fontFace: "Tahoma",
- scaleFontWithValue:true,
- fontSizeMin:8,
- fontSizeMax:20,
- fontThreshold:12,
- fontSizeMaxVisible:20
- },
- edges: {
- width: 0.15,
- inheritColor: "from"
- },
- tooltip: {
- delay: 200,
- fontSize: 12,
- color: {
- background: "#fff"
- }
- },
- smoothCurves: {dynamic:false, type: "continuous"},
- stabilize: false,
- physics: {barnesHut: {gravitationalConstant: 0, centralGravity: 0, springConstant: 0}},
- hideEdgesOnDrag: true
- };
-
- // Note: data is coming from ./data/WorldCup2014.js
- network = new vis.Network(container, data, options);
- network.on("click",onClick);
- }
-
-
- function onClick(selectedItems) {
- var nodeId;
- var degrees = 2;
- // we get all data from the dataset once to avoid updating multiple times.
- var allNodes = nodes.get({returnType:"Object"});
- if (selectedItems.nodes.length == 0) {
- // restore on unselect
- for (nodeId in allNodes) {
- if (allNodes.hasOwnProperty(nodeId)) {
- allNodes[nodeId].color = undefined;
- if (allNodes[nodeId].oldLabel !== undefined) {
- allNodes[nodeId].label = allNodes[nodeId].oldLabel;
- allNodes[nodeId].oldLabel = undefined;
- }
- allNodes[nodeId]['levelOfSeperation'] = undefined;
- allNodes[nodeId]['inConnectionList'] = undefined;
- }
- }
- }
- else {
- // we clear the level of separation in all nodes.
- clearLevelOfSeperation(allNodes);
-
- // we will now start to collect all the connected nodes we want to highlight.
- var connectedNodes = selectedItems.nodes;
-
- // we can store them into levels of separation and we could then later use this to define a color per level
- // any data can be added to a node, this is just stored in the nodeObject.
- storeLevelOfSeperation(connectedNodes,0, allNodes);
- for (var i = 1; i < degrees + 1; i++) {
- appendConnectedNodes(connectedNodes);
- storeLevelOfSeperation(connectedNodes, i, allNodes);
- }
- for (nodeId in allNodes) {
- if (allNodes.hasOwnProperty(nodeId)) {
- if (allNodes[nodeId]['inConnectionList'] == true) {
- if (allNodes[nodeId]['levelOfSeperation'] !== undefined) {
- if (allNodes[nodeId]['levelOfSeperation'] >= 2) {
- allNodes[nodeId].color = 'rgba(150,150,150,0.75)';
- }
- else {
- allNodes[nodeId].color = undefined;
- }
- }
- else {
- allNodes[nodeId].color = undefined;
- }
- if (allNodes[nodeId].oldLabel !== undefined) {
- allNodes[nodeId].label = allNodes[nodeId].oldLabel;
- allNodes[nodeId].oldLabel = undefined;
- }
- }
- else {
- allNodes[nodeId].color = 'rgba(200,200,200,0.5)';
- if (allNodes[nodeId].oldLabel === undefined) {
- allNodes[nodeId].oldLabel = allNodes[nodeId].label;
- allNodes[nodeId].label = "";
- }
- }
- }
- }
- }
- var updateArray = [];
- for (nodeId in allNodes) {
- if (allNodes.hasOwnProperty(nodeId)) {
- updateArray.push(allNodes[nodeId]);
- }
- }
- nodes.update(updateArray);
- }
-
-
- /**
- * update the allNodes object with the level of separation.
- * Arrays are passed by reference, we do not need to return them because we are working in the same object.
- */
- function storeLevelOfSeperation(connectedNodes, level, allNodes) {
- for (var i = 0; i < connectedNodes.length; i++) {
- var nodeId = connectedNodes[i];
- if (allNodes[nodeId]['levelOfSeperation'] === undefined) {
- allNodes[nodeId]['levelOfSeperation'] = level;
- }
- allNodes[nodeId]['inConnectionList'] = true;
- }
- }
-
- function clearLevelOfSeperation(allNodes) {
- for (var nodeId in allNodes) {
- if (allNodes.hasOwnProperty(nodeId)) {
- allNodes[nodeId]['levelOfSeperation'] = undefined;
- allNodes[nodeId]['inConnectionList'] = undefined;
- }
- }
- }
-
- /**
- * Add the connected nodes to the list of nodes we already have
- *
- *
- */
- function appendConnectedNodes(sourceNodes) {
- var tempSourceNodes = [];
- // first we make a copy of the nodes so we do not extend the array we loop over.
- for (var i = 0; i < sourceNodes.length; i++) {
- tempSourceNodes.push(sourceNodes[i])
- }
-
- for (var i = 0; i < tempSourceNodes.length; i++) {
- var nodeId = tempSourceNodes[i];
- if (sourceNodes.indexOf(nodeId) == -1) {
- sourceNodes.push(nodeId);
- }
- var connectedNodes = network.getConnectedNodes(nodeId);
- addUnique(connectedNodes,sourceNodes);
- }
- tempSourceNodes = null;
- }
-
- /**
- * Join two arrays without duplicates
- * @param fromArray
- * @param toArray
- */
- function addUnique(fromArray, toArray) {
- for (var i = 0; i < fromArray.length; i++) {
- if (toArray.indexOf(fromArray[i]) == -1) {
- toArray.push(fromArray[i]);
- }
- }
- }
-
- redrawAll()
-
- </script>
-
- </body></html>
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