GitHub Discussion #1967

https://github.com/clientIO/joint/discussions/1967

by Roman Bruckner

HTML

<html>
<head>
    <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.6.2/joint.css" />
</head>
<body>
      <!-- content -->
      <div id="paper"></div>

      <!-- dependencies -->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.6.1/jquery.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.4.0/backbone.js"></script>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.6.2/joint.js"></script>
    
    </body>
</html>

JavaScript

var graph = new joint.dia.Graph({}, {
    cellNamespace: joint.shapes
});

const paper = new joint.dia.Paper({
    el: document.getElementById('paper'),
    width: 800,
    height: 900,
    model: graph,
    defaultConnectionPoint: {
        name: 'boundary'
    },
    cellViewNamespace: joint.shapes,
    interactive: {
        labelMove: true
    },
    snapLabels: true,
    gridSize: 10,
    async: true,
    sorting: joint.dia.Paper.sorting.APPROX,
    linkPinning: false,
    defaultLink: () => new joint.shapes.standard.DoubleLink()
});

// Example

var el1 = new joint.shapes.standard.Rectangle({
    position: {
        x: 10,
        y: 170
    },
    size: {
        width: 100,
        height: 90
    },
    attrs: {
        label: {
            text: 'A'
        }
    }
});
var el2 = new joint.shapes.standard.Rectangle({
    position: {
        x: 400,
        y: 170
    },
    size: {
        width: 100,
        height: 90
    },
    attrs: {
        label: {
            text: 'B'
        }
    }
});

const l1 = new joint.shapes.standard.Link({
    source: {
        id: el1.id
    },
    target: {
        id: el2.id
    },
    attrs: {
        line: {
            strokeWidth: 3
        }
    },
    labels: [{
        size: { width: 200, height: 200 },
        attrs: {
            body: {
                width: 'calc(w)',
                height: 'calc(h)',
                strokeWidth: 2,
                stroke: '#000000',
                fill: '#FFFFFF'
            },
            header: {
                width: 'calc(w)',
                height: 30,
                strokeWidth: 2,
                stroke: '#000000',
                fill: '#FFFFFF'
            },
            headerText: {
                textVerticalAnchor: 'middle',
                textAnchor: 'middle',
                x: 'calc(w/2)',
                y: 15,
                fontSize: 16,
                fontFamily: 'sans-serif',
                fill: '#333333',
                text: 'Bag'
    ...