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- <!doctype html>
- <html>
- <head>
- <title>Network | Basic usage</title>
-
- <script type="text/javascript" src="../../../../dist/vis.js"></script>
- <link href="../../../../dist/vis.css" rel="stylesheet" type="text/css"/>
-
- <style type="text/css">
- #mynetwork {
- width: 600px;
- height: 400px;
- border: 1px solid lightgray;
- }
-
- p {
- max-width:600px;
- }
- </style>
- </head>
- <body>
-
- <p>
- You can draw on the canvas using normal HTML5 canvas functions. The before drawing will be behind the network, the after drawing will be in front of the network.
- </p>
-
- <div id="mynetwork"></div>
- <pre id="eventSpan"></pre>
- <script type="text/javascript">
- // create an array with nodes
- var nodes = new vis.DataSet([
- {id: 1, label: 'Node 1'},
- {id: 2, label: 'Node 2'},
- {id: 3, label: 'Node 3'},
- {id: 4, label: 'Node 4'},
- {id: 5, label: 'Node 5'}
- ]);
-
- // create an array with edges
- var edges = new vis.DataSet([
- {from: 1, to: 3},
- {from: 1, to: 2},
- {from: 2, to: 4},
- {from: 2, to: 5}
- ]);
-
- // create a network
- var container = document.getElementById('mynetwork');
- var data = {
- nodes: nodes,
- edges: edges
- };
- var options = {};
- var network = new vis.Network(container, data, options);
-
- network.on("initRedraw", function () {
- // do something like move some custom elements?
- });
- network.on("beforeDrawing", function (ctx) {
- var nodeId = 1;
- var nodePosition = network.getPositions([nodeId]);
- ctx.strokeStyle = '#A6D5F7';
- ctx.fillStyle = '#294475';
- ctx.circle(nodePosition[nodeId].x, nodePosition[nodeId].y,50);
- ctx.fill();
- ctx.stroke();
- });
- network.on("afterDrawing", function (ctx) {
- var nodeId = 1;
- var nodePosition = network.getPositions([nodeId]);
- ctx.strokeStyle = '#294475';
- ctx.lineWidth = 4;
- ctx.fillStyle = '#A6D5F7';
- ctx.circle(nodePosition[nodeId].x, nodePosition[nodeId].y,20);
- ctx.fill();
- ctx.stroke();
- });
-
- </script>
-
- <script src="../../../googleAnalytics.js"></script>
- </body>
- </html>
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