gojs
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Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
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HTML
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, viewport-fit=cover"/>
<meta name="description" content="Links with different amounts of curviness."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2021 by Northwoods Software Corporation. -->
<title>Curviness</title>
</head>
<body>
<!-- This top nav is not part of the sample code -->
<nav id="navTop" class="w-full z-30 top-0 text-white bg-nwoods-primary">
<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">
<div class="md:pl-4">
<a class="text-white hover:text-white no-underline hover:no-underline
font-bold text-2xl lg:text-4xl rounded-lg hover:bg-nwoods-secondary " href="../">
<h1 class="mb-0 p-1 ">GoJS</h1>
</a>
</div>
<button id="topnavButton" class="rounded-lg sm:hidden focus:outline-none focus:ring" aria-label="Navigation">
<svg fill="currentColor" viewBox="0 0 20 20" class="w-6 h-6">
<path id="topnavOpen" fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM9 15a1 1 0 011-1h6a1 1 0 110 2h-6a1 1 0 01-1-1z" clip-rule="evenodd"></path>
<path id="topnavClosed" class="hidden" fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path>
</svg>
</button>
<div id="topnavList" class="hidden lg:text-base sm:block items-center w-auto mt-0 text-white p-0 z-20">
<ul class="list-reset list-none font-semibold flex justify-end flex-wrap sm:flex-nowrap items-center px-0 pb-0">
<li class="p-1 sm:p-0"><a class="topnav-link" href="../learn/">Learn</a></li>
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<li class="p-1 sm:p-0"><a class="topnav-link" href="../intro/">Intro</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../api/">API</a></li>
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target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/contact.html', 'contact');">Contact</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/sales/index.html"
target="_blank" rel="noopener" onclick="getOutboundLink('https://www.nwoods.com/sales/index.html', 'buy');">Buy</a></li>
</ul>
</div>
</div>
<hr class="border-b border-gray-600 opacity-50 my-0 py-0" />
</nav>
<div class="md:flex flex-col md:flex-row md:min-h-screen w-full max-w-screen-xl mx-auto">
<div id="navSide" class="flex flex-col w-full md:w-48 text-gray-700 bg-white flex-shrink-0"></div>
<!-- * * * * * * * * * * * * * -->
<!-- Start of GoJS sample code -->
<script src="../release/go.js"></script>
<div class="p-4 w-full">
<script id="code">
function init() {
var $ = go.GraphObject.make; // for conciseness in defining templates
myDiagram = $(go.Diagram, "myDiagramDiv", // create a Diagram for the DIV HTML element
{
"undoManager.isEnabled": true
});
// define a simple Node template
myDiagram.nodeTemplate =
$(go.Node, "Auto",
new go.Binding("position", "position"),
$(go.Shape, "RoundedRectangle",
// Shape.fill is bound to Node.data.color
new go.Binding("fill", "color")),
$(go.TextBlock,
{ margin: 3 }, // some room around the text
// TextBlock.text is bound to Node.data.key
new go.Binding("text", "key"))
);
myDiagram.linkTemplate =
$(go.Link, go.Link.Bezier,
// when using fromSpot/toSpot:
{ fromSpot: go.Spot.Left, toSpot: go.Spot.Left },
new go.Binding("fromEndSegmentLength", "curviness"),
new go.Binding("toEndSegmentLength", "curviness"),
// if not using fromSpot/toSpot, use a binding to curviness instead:
//new go.Binding("curviness", "curviness"),
$(go.Shape, // the link shape
{ stroke: "black", strokeWidth: 1.5 }),
$(go.Shape, // the arrowhead, at the mid point of the link
{ toArrow: "OpenTriangle", segmentIndex: -Infinity })
);
// create the model data that will be represented by Nodes and Links
myDiagram.model = new go.GraphLinksModel(
[
{ position: new go.Point(100, 100), key: "Alpha", color: "lightblue" },
{ position: new go.Point(100, 200), key: "Beta", color: "orange" },
{ position: new go.Point(100, 300), key: "Gamma", color: "lightgreen" },
{ position: new go.Point(100, 400), key: "Delta", color: "pink" }
],
[
// The links have different curviness values.
// Set by hand here, they are larger when the two nodes are farther away
{ from: "Alpha", to: "Beta", curviness: 20 },
{ from: "Alpha", to: "Gamma", curviness: 40 },
{ from: "Gamma", to: "Delta", curviness: 20 },
{ from: "Delta", to: "Alpha", curviness: 60 }
]);
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; width:500px; height:500px"></div>
<p>
This sample explicitly binds the <a>Link.curviness</a> property, so that some links bend out farther than others.
</p>
<p>
The link template also places an arrowhead at the middle of the link,
by explicitly setting the arrowhead's <a>GraphObject.segmentIndex</a> to -Infinity
<i>after</i> setting <a>Shape.toArrow</a>.
</p>
</div>
</div>
<!-- * * * * * * * * * * * * * -->
<!-- End of GoJS sample code -->
</div>
</body>
<!-- This script is part of the gojs.net website, and is not needed to run the sample -->
<script src="../assets/js/goSamples.js"></script>
</html>