gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
276 lines (257 loc) • 12.8 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="Radial layout of an arbitrary graph given a start node; selecting a node re-lays out using it as a new root node."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2023 by Northwoods Software Corporation. -->
<title>Radial Layout</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>
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<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 src="../extensions/RadialLayout.js"></script>
<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
myDiagram =
new go.Diagram("myDiagramDiv", // must be the ID or reference to div
{
initialAutoScale: go.Diagram.Uniform,
padding: 10,
isReadOnly: true,
layout: $(RadialLayout, {
maxLayers: 2,
rotateNode: function(node, angle, sweep, radius) { // method override must be function, not =>
// rotate the nodes and make sure the text is not upside-down
node.angle = angle;
var label = node.findObject("TEXTBLOCK");
if (label !== null) {
label.angle = ((angle > 90 && angle < 270 || angle < -90) ? 180 : 0);
}
},
commitLayers: function() { // method override must be function, not =>
// optional: add circles in the background
// need to remove any old ones first
const diagram = this.diagram;
var gridlayer = diagram.findLayer("Grid");
var circles = new go.Set(/*go.Part*/);
gridlayer.parts.each(circle => {
if (circle.name === "CIRCLE") circles.add(circle);
});
circles.each(circle => diagram.remove(circle));
// add circles centered at the root
for (var lay = 1; lay <= this.maxLayers; lay++) {
var radius = lay * this.layerThickness;
var circle =
$(go.Part,
{ name: "CIRCLE", layerName: "Grid" },
{ locationSpot: go.Spot.Center, location: this.root.location },
$(go.Shape, "Circle",
{ width: radius * 2, height: radius * 2 },
{ fill: "rgba(200,200,200,0.2)", stroke: null }));
diagram.add(circle);
}
}
}),
"animationManager.isEnabled": false
});
// shows when hovering over a node
var commonToolTip =
$("ToolTip",
$(go.Panel, "Vertical",
{ margin: 3 },
$(go.TextBlock, // bound to node data
{ margin: 4, font: "bold 12pt sans-serif" },
new go.Binding("text")),
$(go.TextBlock, // bound to node data
new go.Binding("text", "color", c => "Color: " + c)),
$(go.TextBlock, // bound to Adornment because of call to Binding.ofObject
new go.Binding("text", "", ad => "Connections: " + ad.adornedPart.linksConnected.count).ofObject())
) // end Vertical Panel
); // end Adornment
// define the Node template
myDiagram.nodeTemplate =
$(go.Node, "Spot",
{
locationSpot: go.Spot.Center,
locationObjectName: "SHAPE", // Node.location is the center of the Shape
selectionAdorned: false,
click: nodeClicked,
toolTip: commonToolTip
},
$(go.Shape, "Circle",
{
name: "SHAPE",
fill: "lightgray", // default value, but also data-bound
stroke: "transparent",
strokeWidth: 2,
desiredSize: new go.Size(20, 20),
portId: "" // so links will go to the shape, not the whole node
},
new go.Binding("fill", "color")),
$(go.TextBlock,
{
name: "TEXTBLOCK",
alignment: go.Spot.Right,
alignmentFocus: go.Spot.Left
},
new go.Binding("text"))
);
// this is the root node, at the center of the circular layers
myDiagram.nodeTemplateMap.add("Root",
$(go.Node, "Auto",
{
locationSpot: go.Spot.Center,
selectionAdorned: false,
toolTip: commonToolTip
},
$(go.Shape, "Circle",
{ fill: "white" }),
$(go.TextBlock,
{ font: "bold 12pt sans-serif", margin: 5 },
new go.Binding("text"))
));
// define the Link template
myDiagram.linkTemplate =
$(go.Link,
{
routing: go.Link.Normal,
curve: go.Link.Bezier,
selectionAdorned: false,
layerName: "Background"
},
$(go.Shape,
{
stroke: "black", // default value, but is data-bound
strokeWidth: 1
},
new go.Binding("stroke", "color"))
);
generateGraph();
}
function generateGraph() {
var names = [
"Joshua", "Daniel", "Robert", "Noah", "Anthony",
"Elizabeth", "Addison", "Alexis", "Ella", "Samantha",
"Joseph", "Scott", "James", "Ryan", "Benjamin",
"Walter", "Gabriel", "Christian", "Nathan", "Simon",
"Isabella", "Emma", "Olivia", "Sophia", "Ava",
"Emily", "Madison", "Tina", "Elena", "Mia",
"Jacob", "Ethan", "Michael", "Alexander", "William",
"Natalie", "Grace", "Lily", "Alyssa", "Ashley",
"Sarah", "Taylor", "Hannah", "Brianna", "Hailey",
"Christopher", "Aiden", "Matthew", "David", "Andrew",
"Kaylee", "Juliana", "Leah", "Anna", "Allison",
"John", "Samuel", "Tyler", "Dylan", "Jonathan"
];
var nodeDataArray = [];
for (var i = 0; i < names.length; i++) {
nodeDataArray.push({ key: i, text: names[i], color: go.Brush.randomColor(128, 240) });
}
var linkDataArray = [];
var num = nodeDataArray.length;
for (var i = 0; i < num * 2; i++) {
var a = Math.floor(Math.random() * num);
var b = Math.floor(Math.random() * num / 4) + 1;
linkDataArray.push({ from: a, to: (a + b) % num, color: go.Brush.randomColor(0, 127) });
}
myDiagram.model = new go.GraphLinksModel(nodeDataArray, linkDataArray);
var someone = nodeDataArray[Math.floor(Math.random() * nodeDataArray.length)];
nodeClicked(null, myDiagram.findNodeForData(someone));
}
function nodeClicked(e, root) {
var diagram = root.diagram;
if (diagram === null) return;
// all other nodes should be visible and use the default category
diagram.nodes.each(n => {
n.visible = true;
if (n !== root) n.category = "";
});
// make this Node the root
root.category = "Root";
// tell the RadialLayout what the root node should be
diagram.layout.root = root;
diagram.layoutDiagram(true);
}
// called when "Set Max Layers" button is clicked
function adjustMaxLayers() {
var newMaxLayers = parseInt(document.getElementById('maxLayersChanger').value);
function isInteger(val) {
return typeof val === 'number' &&
isFinite(val) &&
Math.floor(val) === val;
}
if (!isInteger(newMaxLayers) || newMaxLayers < 1 || newMaxLayers > 10) {
alert("Please enter an integer larger than zero and less than or equal to 10.");
} else {
myDiagram.layout.maxLayers = Math.max(1, Math.min(newMaxLayers, 10));
nodeClicked(null, myDiagram.layout.root);
}
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; background: white; width: 100%; height: 600px"></div>
<label for="maxLayersChanger">Max Layers: </label><input type="text" id="maxLayersChanger" name="maxLayers" style="width: 50px" value="2" />
<button onclick="adjustMaxLayers()">Set Max Layers</button>
<p>
Click on a Node to center it and show its relationships.
It is also easy to add more information to each node, including pictures,
or to put such information into <a href="../intro/toolTips.html" target="_blank">Tooltips</a>.
</p>
<p>
The <code>RadialLayout</code> class is an extension defined at <a href="../extensions/RadialLayout.js">RadialLayout.js</a>.
You can control how many layers to show,
whether to draw the circles, and whether to rotate the text, by modifying
RadialLayout properties or changing overrides of <code>RadialLayout.rotateNode</code> and/or <code>RadialLayout.commitLayers</code>.
</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>