Extrude polygons for 3D indoor mapping

Create a 3D indoor map with the fill-extrude-height paint property.


npm install --save @maptiler/sdk

main.js

import { Map, MapStyle, config } from '@maptiler/sdk';
import '@maptiler/sdk/dist/maptiler-sdk.css';

config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
const map = new Map({
    container: 'map',
    style: MapStyle.STREETS,
    center: [-87.61694, 41.86625],
    zoom: 15.99,
    pitch: 40,
    bearing: 20,
    antialias: true
});

map.on('load', function() {
    map.addSource('floorplan', {
        // GeoJSON Data source used in vector tiles, documented at
        // https://gist.github.com/ryanbaumann/a7d970386ce59d11c16278b90dde094d
        'type': 'geojson',
        'data': 'https://docs.maptiler.com/sdk-js/assets/indoor-3d-map.geojson'
    });
    map.addLayer({
        'id': 'room-extrusion',
        'type': 'fill-extrusion',
        'source': 'floorplan',
        'paint': {
            // See the Style Specification for details on data expressions.
            // https://docs.maptiler.com/gl-style-specification/expressions/

            // Get the fill-extrusion-color from the source 'color' property.
            'fill-extrusion-color': ['get', 'color'],

            // Get fill-extrusion-height from the source 'height' property.
            'fill-extrusion-height': ['get', 'height'],

            // Get fill-extrusion-base from the source 'base_height' property.
            'fill-extrusion-base': ['get', 'base_height'],

            // Make extrusions slightly opaque for see through indoor walls.
            'fill-extrusion-opacity': 0.5
        }
    });
});

index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="robots" content="noindex">
  <title>Extrude polygons for 3D indoor mapping</title>
  <link rel="stylesheet" href="./style.css">
</head>
<body>
  <div id="map"></div>
  <script type="module" src="./main.js"></script>
</body>
</html>

style.css

body {margin: 0; padding: 0;}
#map {position: absolute; top: 0; bottom: 0; width: 100%;}

<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Extrude polygons for 3D indoor mapping</title>
<script src="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.umd.min.js"></script>
<link href="https://cdn.maptiler.com/maptiler-sdk-js/v4.1.0/maptiler-sdk.css" rel="stylesheet" />
<style>
  body {margin: 0; padding: 0;}
  #map {position: absolute; top: 0; bottom: 0; width: 100%;}
</style>
</head>
<body>
<div id="map"></div>
<script>
    maptilersdk.config.apiKey = 'YOUR_MAPTILER_API_KEY_HERE';
    const map = new maptilersdk.Map({
        container: 'map',
        style: maptilersdk.MapStyle.STREETS,
        center: [-87.61694, 41.86625],
        zoom: 15.99,
        pitch: 40,
        bearing: 20,
        antialias: true
    });

    map.on('load', function() {
        map.addSource('floorplan', {
            // GeoJSON Data source used in vector tiles, documented at
            // https://gist.github.com/ryanbaumann/a7d970386ce59d11c16278b90dde094d
            'type': 'geojson',
            'data': 'https://docs.maptiler.com/sdk-js/assets/indoor-3d-map.geojson'
        });
        map.addLayer({
            'id': 'room-extrusion',
            'type': 'fill-extrusion',
            'source': 'floorplan',
            'paint': {
                // See the Style Specification for details on data expressions.
                // https://docs.maptiler.com/gl-style-specification/expressions/

                // Get the fill-extrusion-color from the source 'color' property.
                'fill-extrusion-color': ['get', 'color'],

                // Get fill-extrusion-height from the source 'height' property.
                'fill-extrusion-height': ['get', 'height'],

                // Get fill-extrusion-base from the source 'base_height' property.
                'fill-extrusion-base': ['get', 'base_height'],

                // Make extrusions slightly opaque for see through indoor walls.
                'fill-extrusion-opacity': 0.5
            }
        });
    });
</script></body>
</html>