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4 | <meta charset="utf-8"/>
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5 | <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, viewport-fit=cover"/>
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6 | <meta name="description" content="TypeScript: A demonstration of the SectorReshapingTool extension."/>
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7 | <link rel="stylesheet" href="../assets/css/style.css"/>
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8 |
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9 | <title>Tool for Reshaping a Sector of a Circle</title>
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10 | </head>
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11 |
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12 | <body>
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13 |
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14 | <nav id="navTop" class="w-full z-30 top-0 text-white bg-nwoods-primary">
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15 | <div class="w-full container max-w-screen-lg mx-auto flex flex-wrap sm:flex-nowrap items-center justify-between mt-0 py-2">
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17 | <a class="text-white hover:text-white no-underline hover:no-underline
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18 | font-bold text-2xl lg:text-4xl rounded-lg hover:bg-nwoods-secondary " href="../">
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19 | <h1 class="mb-0 p-1 ">GoJS</h1>
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32 | <li class="p-1 sm:p-0"><a class="topnav-link" href="../intro/">Intro</a></li>
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48 |
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49 |
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50 |
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51 |
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52 | <div class="p-4 w-full">
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53 | <div id="sample">
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54 | <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:600px"></div>
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55 | <p>
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56 | Two of the handles permit changing the angles of the sector; one handle permits changing the radius of the sector.
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57 | </p>
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58 | <p>
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59 | Note that the <a>Geometry</a> returned by <code>makeSector</code> always returns a Geometry that
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60 | occupies the area that would be occupied by a full circle. That Geometry-creating function also
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61 | depends on three data properties, <code>radius</code>, <code>angle</code>, and <code>sweep</code>.
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62 | </p>
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63 | </div>
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64 |
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65 | <script type="module" id="code">
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66 | import * as go from "../release/go-module.js";
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67 | import { SectorReshapingTool } from './SectorReshapingTool.js';
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68 |
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69 | if (window.goSamples) goSamples();
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70 | const $ = go.GraphObject.make;
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71 |
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72 | const myDiagram = $(go.Diagram, 'myDiagramDiv', {
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73 | 'animationManager.isEnabled': false,
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74 | 'undoManager.isEnabled': true
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75 | });
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76 |
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77 |
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78 | myDiagram.toolManager.mouseDownTools.add(new SectorReshapingTool());
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79 |
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80 | function makeSector(data) {
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81 | const radius = SectorReshapingTool.getRadius(data);
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82 | const angle = SectorReshapingTool.getAngle(data);
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83 | const sweep = SectorReshapingTool.getSweep(data);
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84 | const start = new go.Point(radius, 0).rotate(angle);
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85 |
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86 | const geo = new go.Geometry()
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87 | .add(new go.PathFigure(radius + start.x, radius + start.y)
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88 | .add(new go.PathSegment(go.PathSegment.Arc, angle, sweep,
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89 | radius, radius,
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90 | radius, radius))
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91 | .add(new go.PathSegment(go.PathSegment.Line, radius, radius).close()))
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92 | .add(new go.PathFigure(0, 0))
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93 | .add(new go.PathFigure(2 * radius, 2 * radius));
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94 | return geo;
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95 | }
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96 |
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97 | myDiagram.nodeTemplate =
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98 | $(go.Node, 'Spot',
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99 | {
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100 | locationSpot: go.Spot.Center, locationObjectName: 'LAMP',
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101 | selectionObjectName: 'LAMP', selectionAdorned: false
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102 | },
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103 | new go.Binding('location', 'loc', go.Point.parse).makeTwoWay(go.Point.stringify),
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104 |
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105 | new go.Binding('layerName', 'isSelected', (s) => s ? 'Foreground' : '').ofObject(),
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106 | $(go.Panel, 'Spot', { name: 'LAMP' },
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107 | $(go.Shape,
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108 | { fill: 'yellow', stroke: 'lightgray', strokeWidth: 0.5 },
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109 | new go.Binding('geometry', '', makeSector)),
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110 | $(go.Shape, 'Circle', { name: 'SHAPE', width: 6, height: 6 })),
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111 | $(go.TextBlock,
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112 | {
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113 | alignment: new go.Spot(0.5, 0.5, 0, 3), alignmentFocus: go.Spot.Top,
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114 | stroke: 'blue', background: 'rgba(255,255,255,0.3)'
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115 | },
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116 | new go.Binding('alignment', 'spot', go.Spot.parse).makeTwoWay(go.Spot.stringify),
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117 | new go.Binding('text', 'name'))
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118 | );
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119 |
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120 | myDiagram.model = new go.GraphLinksModel([
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121 | { name: 'Alpha', radius: 70, sweep: 120 },
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122 | { name: 'Beta', radius: 70, sweep: 80, angle: 200 }
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123 | ]);
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124 | myDiagram.commandHandler.selectAll();
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125 |
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126 | window.myDiagram = myDiagram;
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127 | </script>
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128 | </div>
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129 |
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130 |
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131 | </div>
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132 | </body>
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133 |
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134 | <script src="../assets/js/goSamples.js"></script>
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135 | </html>
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