Extrusion

This example shows how to apply extrusion to a layer for generating 3D visualizations.

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<html>
  <head>
    <script src="https://unpkg.com/deck.gl@^8.4.0/dist.min.js"></script>
    <script src="https://unpkg.com/@deck.gl/carto@^8.4.0/dist.min.js"></script>
    
    <script src="https://libs.cartocdn.com/mapbox-gl/v1.13.0/mapbox-gl.js"></script>
    <link href="https://libs.cartocdn.com/mapbox-gl/v1.13.0/mapbox-gl.css" rel="stylesheet" />
  </head>

  <body style="margin: 0; padding: 0">
    <div id="map" style="width: 100vw; height: 100vh"></div>
  </body>

  <script type="text/javascript">
    deck.carto.setDefaultCredentials({
      username: "public",
      apiKey: "8l-WraD-0s4A5FJj9W7uIg",
    });

    const POLYGON_COLORS = [
      [128, 0, 32],
      [190, 1, 31],
      [255, 77, 32],
      [255, 142, 54],
      [255, 179, 66],
      [254, 239, 157],
      [253, 255, 208],
    ];

    // Create Deck.GL map
    const deckgl = new deck.DeckGL({
      container: 'map',
      mapStyle: 'https://basemaps.cartocdn.com/gl/dark-matter-gl-style/style.json',

      initialViewState: {
        latitude: 40.7368521,
        longitude: -73.9936065,
        zoom: 11,
        pitch: 60
      },
      controller: true,

      layers: [
        new deck.carto.CartoSQLLayer({
          id: 'mrli',
          data: `SELECT geoid, the_geom_webmercator, avg(txn_amt) as index
            FROM public.mrli_ny_jan WHERE industry ='ret'
            group by geoid, the_geom_webmercator`,
          getFillColor: deck.carto.colorBins({
            attr: 'index',
            domain: [0, 50, 150, 300, 600, 1000],
            colors: POLYGON_COLORS
          }),
          getLineColor: [0, 0, 0, 0],
          lineWidthMinPixels: 0,
          filled: true,
          extruded: true,
          wireframe: true,
          getElevation: (f) => {
            return f.properties.index ? f.properties.index : 0
          }
        }),
      ]
    });
  </script>
</html>