227 lines
8.7 KiB
HTML
227 lines
8.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Radial Layout</title>
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<meta name="description" content="Radial layout of an arbitrary graph given a start node; selecting a node re-lays out using it as a new root node." />
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<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
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<meta charset="UTF-8">
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<script src="../release/go.js"></script>
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<script src="../extensions/RadialLayout.js"></script>
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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<script id="code">
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function init() {
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if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
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var $ = go.GraphObject.make; // for conciseness in defining templates
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myDiagram =
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$(go.Diagram, "myDiagramDiv", // must be the ID or reference to div
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{
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initialAutoScale: go.Diagram.Uniform,
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initialContentAlignment: go.Spot.Center,
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padding: 10,
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isReadOnly: true,
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layout: $(RadialLayout, {
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maxLayers: 2,
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rotateNode: function(node, angle, sweep, radius) {
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// rotate the nodes and make sure the text is not upside-down
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node.angle = angle;
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var label = node.findObject("TEXTBLOCK");
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if (label !== null) {
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label.angle = ((angle > 90 && angle < 270 || angle < -90) ? 180 : 0);
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}
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},
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commitLayers: function() {
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// optional: add circles in the background
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// need to remove any old ones first
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var diagram = this.diagram;
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var gridlayer = diagram.findLayer("Grid");
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var circles = new go.Set(go.Part);
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gridlayer.parts.each(function(circle) {
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if (circle.name === "CIRCLE") circles.add(circle);
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});
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circles.each(function(circle) {
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diagram.remove(circle);
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});
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// add circles centered at the root
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var $ = go.GraphObject.make; // for conciseness in defining templates
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for (var lay = 1; lay <= this.maxLayers; lay++) {
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var radius = lay * this.layerThickness;
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var circle =
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$(go.Part,
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{ name: "CIRCLE", layerName: "Grid" },
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{ locationSpot: go.Spot.Center, location: this.root.location },
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$(go.Shape, "Circle",
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{ width: radius * 2, height: radius * 2 },
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{ fill: "rgba(200,200,200,0.2)", stroke: null }));
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diagram.add(circle);
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}
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}
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}),
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"animationManager.isEnabled": false
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});
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// shows when hovering over a node
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var commonToolTip =
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$(go.Adornment, "Auto",
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{ isShadowed: true },
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$(go.Shape, { fill: "#FFFFCC" }),
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$(go.Panel, "Vertical",
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{ margin: 3 },
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$(go.TextBlock, // bound to node data
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{margin: 4, font: "bold 12pt sans-serif" },
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new go.Binding("text")),
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$(go.TextBlock, // bound to node data
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new go.Binding("text", "color", function(c) { return "Color: " + c; })),
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$(go.TextBlock, // bound to Adornment because of call to Binding.ofObject
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new go.Binding("text", "", function(ad) { return "Connections: " + ad.adornedPart.linksConnected.count; }).ofObject())
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) // end Vertical Panel
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); // end Adornment
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// define the Node template
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myDiagram.nodeTemplate =
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$(go.Node, "Spot",
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{
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locationSpot: go.Spot.Center,
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locationObjectName: "SHAPE", // Node.location is the center of the Shape
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selectionAdorned: false,
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click: nodeClicked,
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toolTip: commonToolTip
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},
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$(go.Shape, "Circle",
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{
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name: "SHAPE",
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fill: "lightgray", // default value, but also data-bound
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stroke: "transparent",
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strokeWidth: 2,
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desiredSize: new go.Size(20, 20),
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portId: "" // so links will go to the shape, not the whole node
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},
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new go.Binding("fill", "color")),
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$(go.TextBlock,
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{
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name: "TEXTBLOCK",
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alignment: go.Spot.Right,
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alignmentFocus: go.Spot.Left
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},
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new go.Binding("text"))
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);
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// this is the root node, at the center of the circular layers
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myDiagram.nodeTemplateMap.add("Root",
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$(go.Node, "Auto",
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{
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locationSpot: go.Spot.Center,
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selectionAdorned: false,
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toolTip: commonToolTip
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},
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$(go.Shape, "Circle",
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{ fill: "white" }),
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$(go.TextBlock,
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{ font: "bold 12pt sans-serif", margin: 5 },
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new go.Binding("text"))
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));
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// define the Link template
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myDiagram.linkTemplate =
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$(go.Link,
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{
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routing: go.Link.Normal,
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curve: go.Link.Bezier,
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selectionAdorned: false,
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layerName: "Background"
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},
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$(go.Shape,
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{ stroke: "black", // default value, but is data-bound
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strokeWidth: 1 },
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new go.Binding("stroke", "color"))
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);
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generateGraph();
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}
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function generateGraph() {
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var names = [
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"Joshua", "Daniel", "Robert", "Noah", "Anthony",
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"Elizabeth", "Addison", "Alexis", "Ella", "Samantha",
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"Joseph", "Scott", "James", "Ryan", "Benjamin",
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"Walter", "Gabriel", "Christian", "Nathan", "Simon",
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"Isabella", "Emma", "Olivia", "Sophia", "Ava",
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"Emily", "Madison", "Tina", "Elena", "Mia",
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"Jacob", "Ethan", "Michael", "Alexander", "William",
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"Natalie", "Grace", "Lily", "Alyssa", "Ashley",
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"Sarah", "Taylor", "Hannah", "Brianna", "Hailey",
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"Christopher", "Aiden", "Matthew", "David", "Andrew",
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"Kaylee", "Juliana", "Leah", "Anna", "Allison",
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"John", "Samuel", "Tyler", "Dylan", "Jonathan"
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];
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var nodeDataArray = [];
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for (var i = 0; i < names.length; i++) {
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nodeDataArray.push({ key: i, text: names[i], color: go.Brush.randomColor(128, 240) });
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}
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var linkDataArray = [];
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var num = nodeDataArray.length;
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for (var i = 0; i < num * 2; i++) {
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var a = Math.floor(Math.random() * num);
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var b = Math.floor(Math.random() * num / 4) + 1;
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linkDataArray.push({ from: a, to: (a + b) % num, color: go.Brush.randomColor(0, 127) });
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}
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myDiagram.model = new go.GraphLinksModel(nodeDataArray, linkDataArray);
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var someone = nodeDataArray[Math.floor(Math.random() * nodeDataArray.length)];
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nodeClicked(null, myDiagram.findNodeForData(someone));
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}
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function nodeClicked(e, root) {
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var diagram = root.diagram;
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if (diagram === null) return;
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// all other nodes should be visible and use the default category
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diagram.nodes.each(function(n) {
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n.visible = true;
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if (n !== root) n.category = "";
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})
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// make this Node the root
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root.category = "Root";
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// tell the RadialLayout what the root node should be
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diagram.layout.root = root;
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diagram.layoutDiagram(true);
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}
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// called when "Set Max Layers" button is clicked
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function adjustMaxLayers() {
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var newMaxLayers = document.getElementById("maxLayersChanger").value;
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function IsNumeric(val) {
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return Number(parseInt(val)) == val;
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}
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if (!IsNumeric(newMaxLayers) || newMaxLayers < 1 || newMaxLayers > 10) {
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alert("Please enter an integer larger than zero and less than or equal to 10.");
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} else {
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myDiagram.layout.maxLayers = Math.max(1, Math.min(newMaxLayers, 10));
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nodeClicked(null, myDiagram.layout.root);
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}
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}
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</script>
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</head>
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<body onload="init()">
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<div id="sample">
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<div id="myDiagramDiv" style="border: solid 1px black; background: white; width: 100%; height: 600px"></div>
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<label for="maxLayersChanger">Max Layers: </label><input type="text" id="maxLayersChanger" name="maxLayers" style="width: 50px" value="2" />
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<button onclick="adjustMaxLayers()">Set Max Layers</button>
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<p>
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Click on a Node to center it and show its relationships.
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It is also easy to add more information to each node, including pictures,
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or to put such information into <a href="../intro/toolTips.html" target="_blank">Tooltips</a>.
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</p>
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<p>
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The <code>RadialLayout</code> class is an extension defined at <a href="../extensions/RadialLayout.js">RadialLayout.js</a>.
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You can control how many layers to show,
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whether to draw the circles, and whether to rotate the text, by modifying
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RadialLayout properties or changing overrides of <code>RadialLayout.rotateNode</code> and/or <code>RadialLayout.commitLayers</code>.
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</p>
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</div>
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</body>
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</html> |