gojs
Version:
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="An interactive GoJS Diagram demonstrating viewports and document bounds and alignment and scaling."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2023 by Northwoods Software Corporation. -->
<title>Content Alignment examples</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
myDiagram = new go.Diagram("myDiagramDiv", // Must be the ID or reference to div
{
"undoManager.isEnabled": true
});
for (var i = 0; i < 15; i++) {
myDiagram.add( // add an unbound Node to the diagram at a random position
$(go.Node,
{ position: new go.Point(Math.random() * 251, Math.random() * 251) },
$(go.Shape, "Circle",
{ fill: go.Brush.randomColor(150), strokeWidth: 2, desiredSize: new go.Size(30, 30) })
));
}
// automatically update information in the panel
myDiagram.addDiagramListener("DocumentBoundsChanged", updateDOM);
myDiagram.addDiagramListener("ViewportBoundsChanged", updateDOM);
var myPosX = document.getElementById("positionX");
var myPosY = document.getElementById("positionY");
var myScale = document.getElementById("scale");
var myDocBounds = document.getElementById("docBounds");
function updateDOM(e) {
var d = e.diagram;
var pos = d.position;
myPosX.value = Math.round(pos.x, 2);
myPosY.value = Math.round(pos.y, 2);
myScale.value = d.scale;
var b = d.documentBounds;
myDocBounds.textContent = b.x.toFixed(2) + ", " + b.y.toFixed(2) + " " + b.width.toFixed(2) + " x " + b.height.toFixed(2);
}
}
// occurs when one of the contentAlign radio buttons is clicked
function changeContentAlign(spot) {
myDiagram.startTransaction("");
myDiagram.contentAlignment = go.Spot[spot];
myDiagram.commitTransaction("");
}
function changePosition(posx, posy) {
myDiagram.startTransaction("");
var x = parseInt(posx);
var y = parseInt(posy);
myDiagram.position = new go.Point(x, y);
myDiagram.commitTransaction("");
}
function changeScale(scale) {
var scale = parseFloat(scale);
if (scale > 0) {
myDiagram.startTransaction("");
myDiagram.scale = scale;
myDiagram.commitTransaction("");
}
}
function changeFixedBounds(fx, fy, fw, fh) {
myDiagram.startTransaction("");
var x = parseFloat(fx);
var y = parseFloat(fy);
var h = parseFloat(fw);
var w = parseFloat(fh);
myDiagram.fixedBounds = new go.Rect(x, y, Math.max(1, w), Math.max(1, h));
myDiagram.commitTransaction("");
}
function changePadding(pt, pr, pb, pl) {
myDiagram.startTransaction("");
var t = parseFloat(pt);
var r = parseFloat(pr);
var b = parseFloat(pb);
var l = parseFloat(pl);
myDiagram.padding = new go.Margin(t, r, b, l);
myDiagram.commitTransaction("");
}
function changeAutoScale(scaleType) {
myDiagram.startTransaction("");
myDiagram.autoScale = go.Diagram[scaleType];
myDiagram.commitTransaction("");
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div style="width:100%; white-space: nowrap">
<div style="display: inline-block; vertical-align: top; width:50%">
<div id="myDiagramDiv" style="height: 400px; background: whitesmoke; border: solid 1px black"></div>
</div>
<div style="display: inline-block; vertical-align: top; width:50%">
<div style="border: solid 1px black; padding:5px">
Diagram.documentBounds: <div id="docBounds" style="display: inline-block"></div>
<p>Diagram.contentAlignment:<br />
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="None" checked/><label for="None">None</label>
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="Center"/><label for="Center">Center</label><br/>
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="Left"/><label for="Left">Left</label>
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="Right"/><label for="Right">Right</label><br/>
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="Top"/><label for="Top">Top</label>
<input type="radio" name="contentAlign" onclick="changeContentAlign(this.id)" id="Bottom"/><label for="Bottom">Bottom</label><br/>
</p>
<p>Diagram.position:<br />
<input type="text" size="3" id="positionX" value="NaN"/>
<input type="text" size="3" id="positionY" value="NaN"/>
<button onclick="changePosition(positionX.value, positionY.value)">Change</button>
</p>
<p>Diagram.scale:<br />
<input type="text" size="3" id="scale" value="1"/>
<button onclick="changeScale(scale.value)">Change</button>
</p>
<p>Diagram.fixedBounds (x, y, width, height):<br />
<input type="text" size="3" id="fixedX" value="NaN"/>
<input type="text" size="3" id="fixedY" value="NaN"/>
<input type="text" size="3" id="fixedW" value="NaN"/>
<input type="text" size="3" id="fixedH" value="NaN"/>
<button onclick="changeFixedBounds(fixedX.value, fixedY.value, fixedW.value, fixedH.value)">Set</button>
</p>
<p>Diagram.padding (top, right, bottom, left):<br />
<input type="text" size="3" id="padT" value="5"/>
<input type="text" size="3" id="padR" value="5"/>
<input type="text" size="3" id="padB" value="5"/>
<input type="text" size="3" id="padL" value="5"/>
<button onclick="changePadding(padT.value, padR.value, padB.value, padL.value)">Set</button>
</p>
<p>Diagram.autoScale:<br />
<input type="radio" name="autoScale" onclick="changeAutoScale(this.value)" id="DiagramNone" value="None" checked /><label for="DiagramNone">Diagram.None</label><br/>
<input type="radio" name="autoScale" onclick="changeAutoScale(this.id)" id="Uniform" /><label for="Uniform">Diagram.Uniform</label><br/>
<input type="radio" name="autoScale" onclick="changeAutoScale(this.id)" id="UniformToFill" /><label for="UniformToFill">Diagram.UniformToFill</label><br/>
(but no greater than CommandHandler.defaultScale)
</p>
<button onclick="myDiagram.commandHandler.zoomToFit()" >Zoom to Fit</button>
</div>
</div>
<p>
A Diagram's <a>Diagram.contentAlignment</a> property determines how parts are positioned when the
<a>Diagram.viewportBounds</a> width or height is different than the <a>Diagram.documentBounds</a> width or height.
</p>
</div>
</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>