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1<!DOCTYPE html>
2<html lang="en">
3<head>
4<meta charset="utf-8"/>
5<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, viewport-fit=cover"/>
6<meta name="description" content="A demonstration of the RescalingTool extension."/>
7<link rel="stylesheet" href="../assets/css/style.css"/>
8<!-- Copyright 1998-2021 by Northwoods Software Corporation. -->
9<title>Rescaling GraphObjects using the RescalingTool</title>
10</head>
11
12<body>
13 <!-- This top nav is not part of the sample code -->
14 <nav id="navTop" class="w-full z-30 top-0 text-white bg-nwoods-primary">
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19 <h1 class="mb-0 p-1 ">GoJS</h1>
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48 <!-- * * * * * * * * * * * * * -->
49 <!-- Start of GoJS sample code -->
50
51
52 <div class="p-4 w-full">
53 <div id="sample">
54 <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:400px"></div>
55 <p>
56 Selecting a node will show a rescaling handle that when dragged will modify the node's <a>GraphObject.scale</a> property.
57 </p>
58 <p>
59 Just as the <a>ResizingTool</a> changes the <a>GraphObject.desiredSize</a> of an object,
60 and just as the <a>RotatingTool</a> changes the <a>GraphObject.angle</a> of an object,
61 the <a>RescalingTool</a> changes the <a>GraphObject.scale</a> of an object.
62 </p>
63 </div>
64 <script type="module" id="code">
65 import * as go from "../release/go-module.js";
66 import { RescalingTool } from "./RescalingTool.js";
67
68 if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
69 const $ = go.GraphObject.make; // for conciseness in defining templates
70
71 const myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
72 {
73 layout: $(go.TreeLayout),
74 "undoManager.isEnabled": true // enable undo & redo
75 });
76
77 // install the RescalingTool as a mouse-down tool
78 myDiagram.toolManager.mouseDownTools.add(new RescalingTool());
79
80 myDiagram.nodeTemplate =
81 $(go.Node, "Auto",
82 { locationSpot: go.Spot.Center },
83 new go.Binding("scale").makeTwoWay(),
84 $(go.Shape, "RoundedRectangle", { strokeWidth: 0 },
85 new go.Binding("fill", "color")),
86 $(go.TextBlock,
87 { margin: 8 },
88 new go.Binding("text"))
89 );
90
91 // but use the default Link template, by not setting Diagram.linkTemplate
92
93 // create the model data that will be represented by Nodes and Links
94 myDiagram.model = new go.GraphLinksModel(
95 [
96 { key: 1, text: "Alpha", color: "lightblue" },
97 { key: 2, text: "Beta", color: "orange" },
98 { key: 3, text: "Gamma", color: "lightgreen" },
99 { key: 4, text: "Delta", color: "pink" }
100 ],
101 [
102 { from: 1, to: 2 },
103 { from: 1, to: 3 },
104 { from: 3, to: 4 }
105 ]);
106
107 window.myDiagram = myDiagram; // Attach to the window for console debugging
108 </script>
109 </div>
110 <!-- * * * * * * * * * * * * * -->
111 <!-- End of GoJS sample code -->
112 </div>
113</body>
114<!-- This script is part of the gojs.net website, and is not needed to run the sample -->
115<script src="../assets/js/goSamples.js"></script>
116</html>