gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
142 lines (128 loc) • 6.94 kB
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="Arrange nodes into concentric circles using CircularLayout."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2023 by Northwoods Software Corporation. -->
<title>Double Circle</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="my-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 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>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../samples/">Samples</a></li>
<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>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/products/register.html">Register</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="../download.html">Download</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://forum.nwoods.com/c/gojs/11">Forum</a></li>
<li class="p-1 sm:p-0"><a class="topnav-link" href="https://www.nwoods.com/contact.html"
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 id="allSampleContent" class="p-4 w-full">
<script id="code">
function init() {
// Since 2.2 you can also author concise templates with method chaining instead of GraphObject.make
// For details, see https://gojs.net/latest/intro/buildingObjects.html
const $ = go.GraphObject.make; // for conciseness in defining templates in this function
myDiagram =
new go.Diagram("myDiagramDiv", // must be the ID or reference to div
{
initialAutoScale: go.Diagram.Uniform,
"animationManager.isEnabled": false
});
myDiagram.nodeTemplate =
$(go.Node, "Auto",
{ locationSpot: go.Spot.Center },
$(go.Shape, "Circle",
{ fill: "gray", stroke: "#D8D8D8" },
new go.Binding("fill", "color")),
// define the node's text
$(go.TextBlock,
{ margin: 5, font: "bold 11px Helvetica, bold Arial, sans-serif" },
new go.Binding("text", "key"))
);
// create the model for the double circle
var data = [];
// if you want a node in the center, set its layer: 0
//data.push({ layer: 0, color: "red" });
for (var i = 0; i < 10; i++) data.push({ layer: 1, color: go.Brush.randomColor() });
for (var i = 0; i < 25; i++) data.push({ layer: 2, color: go.Brush.randomColor() });
myDiagram.model = new go.GraphLinksModel(data);
doubleCircleLayout(myDiagram);
}
function doubleCircleLayout(diagram) {
diagram.startTransaction("Multi Circle Layout");
var radius = 100;
var layer = 1;
var nodes = null;
while (nodes = nodesByLayer(diagram, layer), nodes.count > 0) {
var layout = new go.CircularLayout();
layout.radius = radius;
layout.doLayout(nodes);
// recenter at (0, 0)
var cntr = layout.actualCenter;
diagram.moveParts(nodes, new go.Point(-cntr.x, -cntr.y));
// next layout uses a larger radius
radius += 100;
layer++;
}
nodesByLayer(diagram, 0).each(n => n.location = new go.Point(0, 0));
diagram.commitTransaction("Multi Circle Layout");
}
function nodesByLayer(diagram, layer) {
var set = new go.Set(/*go.Node*/);
diagram.nodes.each(part => {
if (part instanceof go.Node && part.data.layer === layer) set.add(part);
});
return set;
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="background-color: white; border: solid 1px black; width: 100%; height: 500px"></div>
<p>
This sample displays a diagram of two sets of nodes intended to be arranged in different circles.
</p>
<p>
Unlike many <b>GoJS</b> apps, there is no <a>Diagram.layout</a> assigned.
Layouts are performed explicitly in code -- a separate <a>CircularLayout</a> for each subset of nodes.
The code will actually work with a variable number of layers/circles, not just two.
</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>