create-gojs-kit
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A CLI for downloading GoJS samples, extensions, and docs
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<title>
Two Rounded Halves | GoJS Diagramming Library
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<div class="flex flex-col prose">
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<!-- Start of GoJS sample code -->
<script src="https://cdn.jsdelivr.net/npm/gojs@3.1.0"></script>
<link rel="stylesheet" href="../assets/css/prism.css"/>
<script src="../assets/js/prism.js"></script>
<div id="allSampleContent" class="p-4 w-full">
<script id="code">
function init() {
myDiagram = new go.Diagram('myDiagramDiv', {
initialScale: 2.0,
'undoManager.isEnabled': true
});
var NodeInfoSize = new go.Size(50, 25); // controls the size of each half
myDiagram.nodeTemplate =
new go.Node('Spot', {
selectionAdorned: false,
locationSpot: go.Spot.Center
})
.add(
new go.Panel('Auto')
.add(
new go.Shape('RoundedRectangle', {
stroke: 'transparent',
strokeWidth: 3,
spot1: go.Spot.TopLeft,
spot2: go.Spot.BottomRight
})
.bindObject('stroke', 'isSelected', s => s ? 'dodgerblue' : 'transparent'), // shown when selected
new go.Panel()
.add(
new go.Panel('Auto', { desiredSize: NodeInfoSize })
.add(
new go.Shape('RoundedTopRectangle', { fill: 'white' })
.bind('fill', 'topColor'),
new go.TextBlock()
.bind('text', 'topText')
),
new go.Panel('Auto', {
desiredSize: NodeInfoSize,
position: new go.Point(0, NodeInfoSize.height - 1)
})
.add(
new go.Shape('RoundedBottomRectangle', { fill: 'white' })
.bind('fill', 'bottomColor'),
new go.TextBlock()
.bind('text', 'bottomText')
)
)
),
// decorations...
new go.Shape('Triangle', {
desiredSize: new go.Size(12, 12),
fill: 'yellow',
alignment: new go.Spot(1, 0, -2, 2),
opacity: 0.0
})
.bind('opacity', 'star', v => v ? 1.0 : 0.0)
);
load();
}
function load() {
myDiagram.model = go.Model.fromJson(document.getElementById('mySavedModel').innerText);
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; width: 100%; height: 400px"></div>
<p>
This defines a node template consisting of a top half and a bottom half. Each half's text and color are data bound. However the size of each node is fixed,
so if the text is too long, it will be clipped.
</p>
<pre class="lang-js" style="height: 215px"><code id="mySavedModel">
{ "class": "go.GraphLinksModel",
"nodeDataArray": [
{ "key": "Alpha", "topText": "A", "topColor": "lightgray", "bottomText": "B", "bottomColor": "green" },
{ "key": "Beta", "topText": "C", "bottomText": "D", "bottomColor": "red", "star": true }
],
"linkDataArray": [
{ "from": "Alpha", "to": "Beta" }
]
}
</code></pre>
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<hr/>
<h3 class="text-xl">GoJS Features in this sample</h3>
<!-- blacklist tags that do not correspond to a specific GoJS feature -->
<h4>Geometry Path Strings</h4>
<p>
The <b>GoJS</b> <a href="../api/symbols/Geometry.html" target="api">Geometry</a> class controls the "shape" of a <a href="../api/symbols/Shape.html" target="api">Shape</a>,
whereas the <a href="../api/symbols/Shape.html#fill" target="api">Shape.fill</a> and <a href="../api/symbols/Shape.html#stroke" target="api">Shape.stroke</a> and other shape properties control the colors and appearance of the shape.
For common shape figures, there are predefined geometries that can be used by setting <a href="../api/symbols/Shape.html#figure" target="api">Shape.figure</a>.
However one can also define custom geometries.
</p>
<p>
One can construct any Geometry by allocating and initializing a <a href="../api/symbols/Geometry.html" target="api">Geometry</a> of at least one <a href="../api/symbols/PathFigure.html" target="api">PathFigure</a> holding some <a href="../api/symbols/PathSegment.html" target="api">PathSegment</a>s.
But you may find that using the string representation of a Geometry is easier to write and save in a database.
Use the static method <a href="../api/symbols/Geometry.html#parse" target="api">Geometry.parse</a> or the <a href="../api/symbols/Shape.html#geometryString" target="api">Shape.geometryString</a> property to transform a geometry path string into a <a href="../api/symbols/Geometry.html" target="api">Geometry</a> object.
</p>
<p>
More information can be found in the <a href="../intro/geometry.html">GoJS Intro</a>.
</p>
<p>
<a href="../samples/index.html#geometries">Related samples</a>
</p>
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