Link Intersection (view vs model)

by Roman Bruckner

HTML

<html>
<head>
    <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/jointjs/3.7.0/joint.css" />
</head>
<body>
      <!-- content -->
      <div id="paper"></div>

      <!-- dependencies -->
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/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/3.7.0/joint.js"></script>
    
    </body>
</html>

JavaScript

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

const paper = new joint.dia.Paper({
  el: document.getElementById('paper'),
  width: 800,
  height: 900,
  model: graph,

  cellViewNamespace: joint.shapes,
  gridSize: 10,
  async: true,
  frozen: true,
  sorting: joint.dia.Paper.sorting.APPROX,
  linkPinning: false,
  snapLinks: true
});


// Example

const json = {
    cells: [
        {
            type: 'standard.Rectangle',
            position: { x: 1350, y: 250 },
            size: { width: 50, height: 20 },
            angle: 0,
            id: '72a4c4ec-9348-4a9a-94e4-7d1f35feea2f',
            z: 1,
            attrs: {
                body: {
                    strokeWidth: 0,
                    stroke: '#31d0c6',
                    fill: 'transparent',
                    strokeDasharray: '0',
                },
                label: {
                    fontSize: 15,
                    fill: '#000000',
                    text: 'Tree',
                    fontFamily: 'Roboto Condensed',
                    fontWeight: 'Bold',
                    strokeWidth: 0,
                },
                root: {
                    dataTooltipPosition: 'left',
                    dataTooltipPositionSelector: '.joint-stencil',
                },
            },
        },
        {
            type: 'standard.Rectangle',
            position: { x: 1420, y: 390 },
            size: { width: 50, height: 20 },
            angle: 0,
            id: 'a56cdb4d-b089-4f37-9a99-5ed4ca8b5ed5',
            z: 2,
            attrs: {
                body: {
                    strokeWidth: 0,
                    stroke: '#31d0c6',
                    fill: 'transparent',
                    strokeDasharray: '0',
                },
                label: {
                    fontSize: 15,
                    fill: '#000000',
                    text: 'leaf',
                    fontFamily: 'Roboto Condensed',
                    fontWeight:...