sydneytrains/offset.js at master · naomistuart/sydneytrains · GitHub

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map.on('load', function () {
    map.addLayer({
        'id': 'route',
        'type': 'line',
        'source': {
            type: 'geojson',
            data: geojson
        },
        'paint': {
            // data-driven style for line color
            'line-color': {
                property: 'color',
                type: 'identity'
            },
            //data-driven style for line offset
            'line-offset': {
                property: 'Order',
                type: 'categorical',
                stops: [
                    [1, 0],
                    [2, 3],
                    [3, 6]
                  ]
            },
            'line-width': 3
        }
    });
});

// Line geometry
var geojson = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "Order": 1,
        "color": "#00954C"
      },
      "geometry": {
        "type": "LineString",
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      }
    },
    {
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