gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
190 lines (171 loc) • 8.88 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="Infinite scrolling and custom limits on Diagram position and scale."/>
<link rel="stylesheet" href="../assets/css/style.css"/>
<!-- Copyright 1998-2023 by Northwoods Software Corporation. -->
<title>Scroll Modes GoJS Sample</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>
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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 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", // create a Diagram for the DIV HTML element
{
minScale: 0.25, // so that the contents and the grid cannot appear too small
grid: $(go.Panel, "Grid",
$(go.Shape, "LineH", { stroke: "gray", strokeWidth: .5 }),
$(go.Shape, "LineH", { stroke: "darkslategray", strokeWidth: 1.5, interval: 10 }),
$(go.Shape, "LineV", { stroke: "gray", strokeWidth: .5 }),
$(go.Shape, "LineV", { stroke: "darkslategray", strokeWidth: 1.5, interval: 10 })
),
"draggingTool.isGridSnapEnabled": true,
"undoManager.isEnabled": true // enable undo & redo
});
myDiagram.nodeTemplate =
$(go.Node, "Auto", // the Shape will go around the TextBlock
$(go.Shape, "RoundedRectangle", { strokeWidth: 0 },
// Shape.fill is bound to Node.data.color
new go.Binding("fill", "color")),
$(go.TextBlock,
{ margin: 8 }, // some room around the text
// TextBlock.text is bound to Node.data.key
new go.Binding("text", "key"))
);
// create the model data that will be represented by Nodes and Links
myDiagram.model = new go.GraphLinksModel(
[
{ key: "Alpha", color: "lightblue" },
{ key: "Beta", color: "orange" },
{ key: "Gamma", color: "lightgreen" },
{ key: "Delta", color: "pink" }
],
[
{ from: "Alpha", to: "Beta" },
{ from: "Alpha", to: "Gamma" },
{ from: "Beta", to: "Beta" },
{ from: "Gamma", to: "Delta" },
{ from: "Delta", to: "Alpha" }
]);
function positionfunc(diagram, pos) {
var size = diagram.grid.gridCellSize;
return new go.Point(
Math.round(pos.x / size.width) * size.width,
Math.round(pos.y / size.height) * size.height);
}
function scalefunc(diagram, scale) {
var oldscale = diagram.scale;
if (scale > oldscale) {
return oldscale + 0.25;
} else if (scale < oldscale) {
return oldscale - 0.25;
}
return oldscale;
}
var infscroll = document.getElementById('infscroll');
infscroll.addEventListener('change', e => {
myDiagram.startTransaction('change scroll mode');
myDiagram.scrollMode = infscroll.checked ? go.Diagram.InfiniteScroll : go.Diagram.DocumentScroll;
myDiagram.commitTransaction('change scroll mode');
});
var poscomp = document.getElementById('poscomp');
poscomp.addEventListener('change', e => {
myDiagram.startTransaction('change position computation');
myDiagram.positionComputation = poscomp.checked ? positionfunc : null;
myDiagram.commitTransaction('change position computation');
});
var scalecomp = document.getElementById('scalecomp');
scalecomp.addEventListener('change', e => {
myDiagram.startTransaction('change scale computation');
myDiagram.scaleComputation = scalecomp.checked ? scalefunc : null;
myDiagram.commitTransaction('change scale computation');
});
}
window.addEventListener('DOMContentLoaded', init);
</script>
<div id="sample">
<div id="myDiagramDiv" style="border: solid 1px black; width:400px; height:400px"></div>
<p>
<label><input id="infscroll" type="checkbox" />Enable Infinite Scrolling, setting <a>Diagram.scrollMode</a></label>
<pre>
myDiagram.scrollMode = checked ? go.Diagram.InfiniteScroll : go.Diagram.DocumentScroll;
</pre>
</p>
<p>
<label><input id="poscomp" type="checkbox" />Enable <a>Diagram.positionComputation</a> function</label>
<pre>
function positionfunc(diagram, pos) {
var size = diagram.grid.gridCellSize;
return new go.Point(
Math.round(pos.x / size.width) * size.width,
Math.round(pos.y / size.height) * size.height);
}
</pre>
</p>
<p>
<label><input id="scalecomp" type="checkbox" />Enable <a>Diagram.scaleComputation</a> function</label>
<pre>
function scalefunc(diagram, scale) {
var oldscale = diagram.scale;
if (scale > oldscale) {
return oldscale + 0.25;
} else if (scale < oldscale) {
return oldscale - 0.25;
}
return oldscale;
}
</pre>
</p>
<p>This demonstrates new scrolling and scaling options available in <strong>GoJS 1.5</strong>.</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>