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68 lines
2.5 KiB
HTML
Executable File
68 lines
2.5 KiB
HTML
Executable File
<!DOCTYPE html>
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<html>
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<head>
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<title>Rescaling GraphObjects using the RescalingTool</title>
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<!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
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<meta name="description" content="A demonstration of the RescalingTool extension." />
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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</head>
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<body>
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<div id="sample">
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<div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:400px"></div>
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<p>
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Selecting a node will show a rescaling handle that when dragged will modify the node's <a>GraphObject.scale</a> property.
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</p>
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<p>
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Just as the <a>ResizingTool</a> changes the <a>GraphObject.desiredSize</a> of an object,
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and just as the <a>RotatingTool</a> changes the <a>GraphObject.angle</a> of an object,
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the <a>RescalingTool</a> changes the <a>GraphObject.scale</a> of an object.
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</p>
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</div>
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<script type="module" id="code">
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import * as go from "../release/go-module.js";
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import { RescalingTool } from "./RescalingTool.js";
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if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
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const $ = go.GraphObject.make; // for conciseness in defining templates
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const myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
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{
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layout: $(go.TreeLayout),
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"undoManager.isEnabled": true // enable undo & redo
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});
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// install the RescalingTool as a mouse-down tool
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myDiagram.toolManager.mouseDownTools.add(new RescalingTool());
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myDiagram.nodeTemplate =
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$(go.Node, "Auto",
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{ locationSpot: go.Spot.Center },
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new go.Binding("scale").makeTwoWay(),
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$(go.Shape, "RoundedRectangle", { strokeWidth: 0 },
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new go.Binding("fill", "color")),
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$(go.TextBlock,
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{ margin: 8 },
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new go.Binding("text"))
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);
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// but use the default Link template, by not setting Diagram.linkTemplate
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// create the model data that will be represented by Nodes and Links
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myDiagram.model = new go.GraphLinksModel(
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[
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{ key: 1, text: "Alpha", color: "lightblue" },
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{ key: 2, text: "Beta", color: "orange" },
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{ key: 3, text: "Gamma", color: "lightgreen" },
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{ key: 4, text: "Delta", color: "pink" }
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],
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[
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{ from: 1, to: 2 },
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{ from: 1, to: 3 },
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{ from: 3, to: 4 }
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]);
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window.myDiagram = myDiagram; // Attach to the window for console debugging
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</script>
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</body>
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</html> |