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JavaScript/jQuery Diagram - Overview

The DevExtreme JavaScript JavaScript Diagram provides a visual interface to be used when you design new diagrams or modify existing ones. This control is available as a jQuery plugin and can be bound to external data. The JavaScript Diagram provides more than 40 resizable shapes, which you can drag and drop onto a page. Shapes and connectors are highly customizable.

Backend API
$(() => { const diagram = $('#diagram').dxDiagram() .dxDiagram('instance'); $.ajax({ url: '../../../../data/diagram-flow.json', dataType: 'text', success(data) { diagram.import(data); }, }); });
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script> <script src="https://cdn3.devexpress.com/jslib/25.1.3/js/dx-diagram.min.js"></script> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.3/css/dx-diagram.min.css" /> <link rel="stylesheet" href="https://cdn3.devexpress.com/jslib/25.1.3/css/dx.light.css" /> <script src="js/dx.all.js"></script> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="index.js"></script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="diagram"> </div> </div> </body> </html>
#diagram { height: 900px; }
{ "page": { "width": 8391, "height": 11907, "pageWidth": 8391, "pageHeight": 11906, "pageLandscape": false, "gridSize": 180, "snapToGrid": true }, "connectors": [{ "key": "116", "points": [{ "x": 2160, "y": 1800 }, { "x": 2160, "y": 2340 } ], "zIndex": 0, "beginItemKey": "107", "beginConnectionPointIndex": 2, "endItemKey": "108", "endConnectionPointIndex": 0 }, { "key": "117", "points": [{ "x": 2160, "y": 3420 }, { "x": 2160, "y": 3960 } ], "zIndex": 0, "beginItemKey": "108", "beginConnectionPointIndex": 2, "endItemKey": "118", "endConnectionPointIndex": 0 }, { "key": "122", "points": [{ "x": 3420, "y": 4680 }, { "x": 5760, "y": 4680 } ], "zIndex": 0, "texts": { "0.45": "No" }, "beginItemKey": "118", "beginConnectionPointIndex": 1, "endItemKey": "121", "endConnectionPointIndex": 3 }, { "key": "123", "points": [{ "x": 6840, "y": 4140 }, { "x": 3420, "y": 2880 } ], "zIndex": 0, "beginItemKey": "121", "beginConnectionPointIndex": 0, "endItemKey": "108", "endConnectionPointIndex": 1 }, { "key": "126", "points": [{ "x": 3780, "y": 9180 }, { "x": 2880, "y": 10440 } ], "zIndex": 0, "texts": { "0.78": "A popular scenario?" }, "beginItemKey": "120", "beginConnectionPointIndex": 3, "endItemKey": "125", "endConnectionPointIndex": 0 }, { "key": "130", "points": [{ "x": 5220, "y": 9180 }, { "x": 6120, "y": 10440 } ], "zIndex": 0, "texts": { "0.77": "Missing info in\nthe documentation?" }, "beginItemKey": "120", "beginConnectionPointIndex": 1, "endItemKey": "127", "endConnectionPointIndex": 0 }, { "key": "132", "points": [{ "x": 2160, "y": 5400 }, { "x": 2160, "y": 6120 } ], "zIndex": 0, "texts": { "0.47": "Yes" }, "beginItemKey": "118", "beginConnectionPointIndex": 2, "endItemKey": "131", "endConnectionPointIndex": 0 }, { "key": "124", "points": [{ "x": 2160, "y": 7200 }, { "x": 4500, "y": 8820 } ], "zIndex": 0, "beginItemKey": "131", "beginConnectionPointIndex": 2, "endItemKey": "120", "endConnectionPointIndex": 0 }, { "key": "134", "points": [{ "x": 3420, "y": 6660 }, { "x": 5760, "y": 6660 } ], "zIndex": 0, "texts": { "0.5": "Need developer\nassistance?" }, "beginItemKey": "131", "beginConnectionPointIndex": 1, "endItemKey": "133", "endConnectionPointIndex": 3 }, { "key": "135", "points": [{ "x": 6840, "y": 7200 }, { "x": 4500, "y": 8820 } ], "zIndex": 0, "beginItemKey": "133", "beginConnectionPointIndex": 2, "endItemKey": "120", "endConnectionPointIndex": 0 } ], "shapes": [ { "key": "107", "type": "terminator", "text": "A new ticket", "x": 1440, "y": 1080, "width": 1440, "height": 720, "zIndex": 0 }, { "key": "108", "type": "process", "text": "Analyze\nthe issue", "x": 900, "y": 2340, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "118", "type": "decision", "text": "Do we have all\ninformation to\nwork with?", "x": 900, "y": 3960, "width": 2520, "height": 1440, "zIndex": 0 }, { "key": "120", "type": "terminator", "text": "Answered", "x": 3780, "y": 8640, "width": 1440, "height": 720, "zIndex": 0 }, { "key": "121", "type": "process", "text": "Request additional\ninformation or clarify\nthe scenario", "x": 5760, "y": 4140, "width": 2160, "height": 1080, "zIndex": 0 }, { "key": "125", "type": "process", "text": "Prepare an example in\nCode Central", "x": 1620, "y": 10440, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "127", "type": "process", "text": "Update the\ndocumentation", "x": 4860, "y": 10440, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "131", "type": "process", "text": "Process the\nticket", "x": 900, "y": 6120, "width": 2520, "height": 1080, "zIndex": 0 }, { "key": "133", "type": "process", "text": "Work with the\nR&D team", "x": 5760, "y": 6120, "width": 2160, "height": 1080, "zIndex": 0 }, { "key": "136", "type": "text", "locked": true, "text": "Ticket Processing Flow", "x": 360, "y": 360, "width": 7740, "height": 360, "zIndex": 0, "styleText": { "font-size": "14pt", "font-weight": "bold" } } ] }