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- <!doctype html>
- <html>
- <head>
- <title>Graph | Navigation</title>
-
- <style type="text/css">
- body {
- font: 10pt sans;
- }
- #mygraph {
- position:relative;
- width: 600px;
- height: 600px;
- border: 1px solid lightgray;
- }
- table.legend_table {
- font-size: 11px;
- border-width:1px;
- border-color:#d3d3d3;
- border-style:solid;
- }
- table.legend_table,td {
- border-width:1px;
- border-color:#d3d3d3;
- border-style:solid;
- padding: 2px;
- }
- div.table_content {
- width:80px;
- text-align:center;
- }
- div.table_description {
- width:100px;
- }
-
- #operation {
- font-size:28px;
- }
- #graph-popUp {
- display:none;
- position:absolute;
- top:350px;
- left:170px;
- z-index:299;
- width:250px;
- height:120px;
- background-color: #f9f9f9;
- border-style:solid;
- border-width:3px;
- border-color: #5394ed;
- padding:10px;
- text-align: center;
- }
- </style>
- <script type="text/javascript" src="../../dist/vis.js"></script>
- <link type="text/css" rel="stylesheet" href="../../dist/vis.css">
-
- <script type="text/javascript">
- var nodes = null;
- var edges = null;
- var graph = null;
-
- function draw() {
- nodes = [];
- edges = [];
- var connectionCount = [];
-
- // randomly create some nodes and edges
- var nodeCount = 25;
- for (var i = 0; i < nodeCount; i++) {
- nodes.push({
- id: i,
- label: String(i)
- });
-
- connectionCount[i] = 0;
-
- // create edges in a scale-free-graph way
- if (i == 1) {
- var from = i;
- var to = 0;
- edges.push({
- from: from,
- to: to
- });
- connectionCount[from]++;
- connectionCount[to]++;
- }
- else if (i > 1) {
- var conn = edges.length * 2;
- var rand = Math.floor(Math.random() * conn);
- var cum = 0;
- var j = 0;
- while (j < connectionCount.length && cum < rand) {
- cum += connectionCount[j];
- j++;
- }
-
- var from = i;
- var to = j;
- edges.push({
- from: from,
- to: to
- });
- connectionCount[from]++;
- connectionCount[to]++;
- }
- }
-
- // create a graph
- var container = document.getElementById('mygraph');
- var data = {
- nodes: nodes,
- edges: edges
- };
- var options = {
- edges: {
- length: 50
- },
- stabilize: false,
- dataManipulation: true,
- onAdd: function(data,callback) {
- var span = document.getElementById('operation');
- var idInput = document.getElementById('node-id');
- var labelInput = document.getElementById('node-label');
- var saveButton = document.getElementById('saveButton');
- var cancelButton = document.getElementById('cancelButton');
- var div = document.getElementById('graph-popUp');
- span.innerHTML = "Add Node";
- idInput.value = data.id;
- labelInput.value = data.label;
- saveButton.onclick = saveData.bind(this,data,callback);
- cancelButton.onclick = clearPopUp.bind();
- div.style.display = 'block';
- },
- onEdit: function(data,callback) {
- var span = document.getElementById('operation');
- var idInput = document.getElementById('node-id');
- var labelInput = document.getElementById('node-label');
- var saveButton = document.getElementById('saveButton');
- var cancelButton = document.getElementById('cancelButton');
- var div = document.getElementById('graph-popUp');
- span.innerHTML = "Edit Node";
- idInput.value = data.id;
- labelInput.value = data.label;
- saveButton.onclick = saveData.bind(this,data,callback);
- cancelButton.onclick = clearPopUp.bind();
- div.style.display = 'block';
- },
- onConnect: function(data,callback) {
- if (data.from == data.to) {
- var r=confirm("Do you want to connect the node to itself?");
- if (r==true) {
- callback(data);
- }
- }
- else {
- callback(data);
- }
- }
- };
- graph = new vis.Graph(container, data, options);
-
- // add event listeners
- graph.on('select', function(params) {
- document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
- });
-
- graph.on("resize", function(params) {console.log(params.width,params.height)});
-
- function clearPopUp() {
- var saveButton = document.getElementById('saveButton');
- var cancelButton = document.getElementById('cancelButton');
- saveButton.onclick = null;
- cancelButton.onclick = null;
- var div = document.getElementById('graph-popUp');
- div.style.display = 'none';
-
- }
-
- function saveData(data,callback) {
- var idInput = document.getElementById('node-id');
- var labelInput = document.getElementById('node-label');
- var div = document.getElementById('graph-popUp');
- data.id = idInput.value;
- data.label = labelInput.value;
- clearPopUp();
- callback(data);
-
- }
- }
- </script>
- </head>
-
- <body onload="draw();">
- <h2>Editing the dataset</h2>
- <div style="width: 700px; font-size:14px;">
- In this example we have enabled the data manipulation setting. If the dataManipulation option is set to true, the edit button will appear.
- If you prefer to have the toolbar visible initially, you can set the initiallyVisible option to true. The exact method is described in the docs.
- <br /><br />
- The data manipulation allows the user to add nodes, connect them, edit them and delete any selected items. In this example we have created trigger functions
- for the add and edit operations. By settings these trigger functions the user can direct the way the data is manipulated. In this example we have created a simple
- pop-up that allows us to edit some of the properties.
- </div>
- <br />
-
- <div id="graph-popUp">
- <span id="operation">node</span> <br>
- <table style="margin:auto;"><tr>
- <td>id</td><td><input id="node-id" value="new value"></td>
- </tr>
- <tr>
- <td>label</td><td><input id="node-label" value="new value"> </td>
- </tr></table>
- <input type="button" value="save" id="saveButton"></button>
- <input type="button" value="cancel" id="cancelButton"></button>
- </div>
- <br />
- <div id="mygraph"></div>
-
- <p id="selection"></p>
- </body>
- </html>
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