82 lines
3.0 KiB
HTML
82 lines
3.0 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>Minimal GoJS Sample with JSON</title>
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<meta name="description" content="The Minimal sample, loading the model from a JSON data source." />
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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="../assets/js/jquery.min.js"></script>
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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 $$ = go.GraphObject.make; // for conciseness in defining templates, avoid $ due to jQuery
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myDiagram = $$(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
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{
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initialContentAlignment: go.Spot.Center, // center the content
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"undoManager.isEnabled": true // enable undo & redo
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});
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// define a simple Node template
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myDiagram.nodeTemplate =
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$$(go.Node, "Auto", // the Shape will go around the TextBlock
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$$(go.Shape, "RoundedRectangle", { strokeWidth: 0},
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// Shape.fill is bound to Node.data.color
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new go.Binding("fill", "color")),
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$$(go.TextBlock,
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{ margin: 8 }, // some room around the text
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// TextBlock.text is bound to Node.data.key
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new go.Binding("text", "key"))
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);
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// but use the default Link template, by not setting Diagram.linkTemplate
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// The previous initialization is the same as the minimal.html sample.
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// Here we request JSON-format text data from the server, in this case from a static file.
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jQuery.getJSON("minimal.json", load);
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}
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function load(jsondata) {
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// create the model from the data in the JavaScript object parsed from JSON text
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myDiagram.model = new go.GraphLinksModel(jsondata["nodes"], jsondata["links"]);
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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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<p>Minimal <b>GoJS</b> Sample, reading JSON data</p>
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<!-- The DIV for the Diagram needs an explicit size or else we won't see anything.
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Also add a border to help see the edges. -->
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<div id="myDiagramDiv" style="border: solid 1px black; width:400px; height:400px"></div>
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<p>
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This is just like the <a href="minimal.html">Minimal</a> sample, but this reads JSON data from the server.
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</p>
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<p>
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Here are the contents of the <code>minimal.json</code> file:
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</p>
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<pre>
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{
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"nodes":[
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{ "key":"Alpha", "color":"lightblue" },
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{ "key":"Beta", "color":"orange" },
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{ "key":"Gamma", "color":"lightgreen" },
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{ "key":"Delta", "color":"pink" }
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],
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"links":[
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{ "from":"Alpha", "to":"Beta" },
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{ "from":"Alpha", "to":"Gamma" },
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{ "from":"Beta", "to":"Beta" },
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{ "from":"Gamma", "to":"Delta" },
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{ "from":"Delta", "to":"Alpha" }
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]
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}
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</pre>
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<p>
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Because this is a "minimal" sample, this sample has no way to update the data on the server.
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</p>
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</div>
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</body>
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</html> |