<!doctype html>
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								<html>
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								<head>
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								    <title>Network | Hierarchical layout difference</title>
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								    <style type="text/css">
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								        body {
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								            font: 10pt sans;
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								        }
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								        #mynetwork {
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								            width: 800px;
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								            height: 500px;
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								            border: 1px solid lightgray;
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								        }
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								    </style>
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								    <script type="text/javascript" src="../../dist/vis.js"></script>
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								    <link href="../../dist/vis.css" rel="stylesheet" type="text/css" />
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								    <script type="text/javascript">
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								        var network = null;
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								        var layoutMethod = "hubsize";
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								        function draw() {
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								            var nodes = [];
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								            var edges = [];
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								            // randomly create some nodes and edges
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								            for (var i = 0; i < 15; i++) {
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								                nodes.push({
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								                    id: i,
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								                    label: String(i)
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								                });
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								            }
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								            edges.push({
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								                from: 0,
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								                to: 1
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								            });
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								            edges.push({
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								                from: 0,
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								                to: 6
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								            });
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								            edges.push({
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								                from: 0,
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								                to: 13
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								            });edges.push({
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								                from: 0,
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								                to: 11
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								            });
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								            edges.push({
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								                from: 1,
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								                to: 2
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								            });
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								            edges.push({
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								                from: 2,
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								                to: 3
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								            });
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								            edges.push({
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								                from: 2,
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								                to: 4
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								            });
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								            edges.push({
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								                from: 3,
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								                to: 5
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								            });
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								            edges.push({
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								                from: 1,
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								                to: 10
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								            });
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								            edges.push({
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								                from: 1,
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								                to: 7
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								            });
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								            edges.push({
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								                from: 2,
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								                to: 8
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								            });
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								            edges.push({
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								                from: 2,
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								                to: 9
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								            });
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								            edges.push({
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								                from: 3,
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								                to: 14
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								            });
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								            edges.push({
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								                from: 1,
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								                to: 12
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								            });
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								            // create a network
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								            var container = document.getElementById('mynetwork');
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								            var data = {
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								                nodes: nodes,
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								                edges: edges
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								            };
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								            var options = {
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								                hierarchicalLayout: {
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								                    layout: layoutMethod
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								                },
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								                edges: {style:"arrow"},
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								                smoothCurves:false
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								            };
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								            network = new vis.Network(container, data, options);
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								            // add event listeners
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								            network.on('select', function(params) {
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								                document.getElementById('selection').innerHTML = 'Selection: ' + params.nodes;
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								            });
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								        }
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								    </script>
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								</head>
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								<body onload="draw();">
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								<h2>Hierarchical layout difference</h2>
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								<div style="width:700px; font-size:14px; text-align: justify;">
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								    This example shows a the effect of the different hierarchical layout methods. Hubsize is based on the amount of edges connected to a node.
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								    The node with the most connections (the largest hub) is drawn at the top of the tree. The direction method is based on the direction of the edges.
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								    Try switching between the methods with the dropdown box below.
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								</div>
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								Layout method:
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								<select id="layout">
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								    <option value="hubsize">hubsize</option>
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								    <option value="direction">direction</option>
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								</select><br/>
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								<br />
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								<div id="mynetwork"></div>
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								<p id="selection"></p>
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								<script language="JavaScript">
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								    var dropdown = document.getElementById("layout");
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								    dropdown.onchange = function() {
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								        layoutMethod = dropdown.value;
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								        draw();
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								    }
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								</script>
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								</body>
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								</html>
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