216 lines
8.6 KiB
HTML
216 lines
8.6 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>Concept Map with animation along paths</title>
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<meta name="description" content="Animating diagram parts to travel along link paths." />
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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="../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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$(go.Diagram, "myDiagramDiv", // must name or refer to the DIV HTML element
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{
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initialAutoScale: go.Diagram.Uniform, // an initial automatic zoom-to-fit
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contentAlignment: go.Spot.Center, // align document to the center of the viewport
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layout:
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$(go.ForceDirectedLayout, // automatically spread nodes apart
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{ defaultSpringLength: 30, defaultElectricalCharge: 100 }),
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"undoManager.isEnabled": true
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});
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// define each Node's appearance
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myDiagram.nodeTemplate =
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$(go.Node, "Auto", // the whole node panel
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{ locationSpot: go.Spot.Center },
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// define the node's outer shape, which will surround the TextBlock
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$(go.Shape, "Rectangle",
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{ fill: $(go.Brush, "Linear", { 0: "rgb(254, 201, 0)", 1: "rgb(254, 162, 0)" }), stroke: "black" }),
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$(go.TextBlock,
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{ font: "bold 10pt helvetica, bold arial, sans-serif", margin: new go.Margin(4, 4, 3, 20)},
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new go.Binding("text", "text"))
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);
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// replace the default Link template in the linkTemplateMap
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myDiagram.linkTemplate =
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$(go.Link, // the whole link panel
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// path animation works with these kinds of links too:
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//{ routing: go.Link.AvoidsNodes },
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//{ curve: go.Link.Bezier },
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$(go.Shape, // the link shape
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{ stroke: "black" }),
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$(go.Shape, // the arrowhead
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{ toArrow: "standard", stroke: null }),
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$(go.Panel, "Auto",
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$(go.Shape, // the label background, which becomes transparent around the edges
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{ fill: $(go.Brush, "Radial", { 0: "rgb(240, 240, 240)", 0.3: "rgb(240, 240, 240)", 1: "rgba(240, 240, 240, 0)" }),
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stroke: null }),
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$(go.TextBlock, // the label text
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{ textAlign: "center",
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font: "10pt helvetica, arial, sans-serif",
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stroke: "#555555",
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margin: 4 },
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new go.Binding("text", "text"))
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)
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);
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myDiagram.nodeTemplateMap.add("token",
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$(go.Part,
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{ locationSpot: go.Spot.Center, layerName: "Foreground" },
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$(go.Shape, "Circle",
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{ width: 12, height: 12, fill: "green", strokeWidth: 0 },
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new go.Binding("fill", "color"))
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));
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// create the model for the concept map
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var nodeDataArray = [
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{ key: 1, text: "Concept Maps" },
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{ key: 2, text: "Organized Knowledge" },
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{ key: 3, text: "Context Dependent" },
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{ key: 4, text: "Concepts" },
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{ key: 5, text: "Propositions" },
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{ key: 6, text: "Associated Feelings or Affect" },
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{ key: 7, text: "Perceived Regularities" },
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{ key: 8, text: "Labeled" },
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{ key: 9, text: "Hierarchically Structured" },
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{ key: 10, text: "Effective Teaching" },
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{ key: 11, text: "Crosslinks" },
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{ key: 12, text: "Effective Learning" },
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{ key: 13, text: "Events (Happenings)" },
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{ key: 14, text: "Objects (Things)" },
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{ key: 15, text: "Symbols" },
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{ key: 16, text: "Words" },
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{ key: 17, text: "Creativity" },
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{ key: 18, text: "Interrelationships" },
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{ key: 19, text: "Infants" },
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{ key: 20, text: "Different Map Segments" }
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];
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var linkDataArray = [
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{ from: 1, to: 2, text: "represent" },
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{ from: 2, to: 3, text: "is" },
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{ from: 2, to: 4, text: "is" },
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{ from: 2, to: 5, text: "is" },
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{ from: 2, to: 6, text: "includes" },
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{ from: 2, to: 10, text: "necessary\nfor" },
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{ from: 2, to: 12, text: "necessary\nfor" },
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{ from: 4, to: 5, text: "combine\nto form" },
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{ from: 4, to: 6, text: "include" },
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{ from: 4, to: 7, text: "are" },
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{ from: 4, to: 8, text: "are" },
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{ from: 4, to: 9, text: "are" },
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{ from: 5, to: 9, text: "are" },
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{ from: 5, to: 11, text: "may be" },
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{ from: 7, to: 13, text: "in" },
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{ from: 7, to: 14, text: "in" },
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{ from: 7, to: 19, text: "begin\nwith" },
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{ from: 8, to: 15, text: "with" },
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{ from: 8, to: 16, text: "with" },
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{ from: 9, to: 17, text: "aids" },
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{ from: 11, to: 18, text: "show" },
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{ from: 12, to: 19, text: "begins\nwith" },
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{ from: 17, to: 18, text: "needed\nto see" },
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{ from: 18, to: 20, text: "between" }
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];
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myDiagram.model = new go.GraphLinksModel(nodeDataArray, linkDataArray);
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initTokens();
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}
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function initTokens() {
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var oldskips = myDiagram.skipsUndoManager;
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myDiagram.skipsUndoManager = true;
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myDiagram.model.addNodeDataCollection([
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{ category: "token", at: 1, color: "green" },
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{ category: "token", at: 2, color: "blue" },
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{ category: "token", at: 4, color: "yellow" },
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{ category: "token", at: 5, color: "purple" },
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{ category: "token", at: 7, color: "red" },
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{ category: "token", at: 8, color: "black" },
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{ category: "token", at: 9, color: "green" },
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{ category: "token", at: 11, color: "blue" },
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{ category: "token", at: 12, color: "yellow" },
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{ category: "token", at: 17, color: "purple" },
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{ category: "token", at: 18, color: "red" }
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]);
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myDiagram.skipsUndoManager = oldskips;
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window.requestAnimationFrame(updateTokens);
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}
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function updateTokens() {
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var oldskips = myDiagram.skipsUndoManager;
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myDiagram.skipsUndoManager = true; // don't record these changes in the UndoManager!
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var temp = new go.Point();
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myDiagram.parts.each(function(token) {
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var data = token.data;
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if (!data) return;
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var at = data.at;
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if (at === undefined) return;
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var from = myDiagram.findNodeForKey(at);
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if (from === null) return;
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var frac = data.frac;
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if (frac === undefined) frac = 0.0;
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var next = data.next;
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var to = myDiagram.findNodeForKey(next);
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if (to === null) { // nowhere to go?
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positionTokenAtNode(token, from); // temporarily stay at the current node
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data.next = chooseDestination(token, from); // and decide where to go next
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} else { // proceed toward the "to" port
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var link = from.findLinksTo(to).first();
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if (link !== null) {
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token.location = link.path.getDocumentPoint(link.path.geometry.getPointAlongPath(frac, temp));
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} else { // stay at the current node
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positionTokenAtNode(token, from);
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}
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if (frac >= 1.0) { // if beyond the end, it's "AT" the NEXT node
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data.frac = 0.0;
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data.at = next;
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data.next = undefined; // don't know where to go next
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} else { // otherwise, move fractionally closer to the NEXT node
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data.frac = frac + 0.01;
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}
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}
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});
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myDiagram.skipsUndoManager = oldskips;
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window.requestAnimationFrame(updateTokens);
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}
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// determine where to position a token when it is resting at a node
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function positionTokenAtNode(token, node) {
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// these details depend on the node template
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token.location = node.position.copy().offset(4 + 6, 5 + 6);
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}
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function chooseDestination(token, node) {
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var dests = new go.List().addAll(node.findNodesOutOf());
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if (dests.count > 0) {
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var dest = dests.elt(Math.floor(Math.random() * dests.count));
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return dest.data.key;
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}
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var arr = myDiagram.model.nodeDataArray;
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// choose a random next data object that is not a token and is not the current Node
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var data = null;
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while (data = arr[Math.floor(Math.random() * arr.length)],
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data.category === "token" || data === node.data) { }
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return data.key;
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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="background-color: whitesmoke; border: solid 1px black; width: 100%; height: 700px"></div>
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<p>
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This sample is copied from the <a href="conceptMap.html">Concept Map</a> sample and
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augmented with tokens that traverse the graph, stopping at nodes and travelling along links.
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</p>
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<p>
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Note that the creation and movement of the tokens is <i>not</i> recorded by the <a>UndoManager</a>.
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</p>
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</div>
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</body>
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</html>
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