Display buildings in 3D

Use extrusions to display buildings' height in 3D. See the example: https://docs.mapbox.com//mapbox-gl-js/example/3d-buildings/

by jscastro76

HTML

<script src="https://api.mapbox.com/mapbox-gl-js/v2.0.0/mapbox-gl.js"></script>
<link rel="stylesheet" href="https://api.mapbox.com/mapbox-gl-js/v2.0.0/mapbox-gl.css">

<div id="map"></div>

CSS

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

JavaScript

mapboxgl.accessToken = 'pk.eyJ1IjoianNjYXN0cm8iLCJhIjoiY2s2YzB6Z25kMDVhejNrbXNpcmtjNGtpbiJ9.28ynPf1Y5Q8EyB_moOHylw';
    var map = new mapboxgl.Map({
        style: 'mapbox://styles/mapbox/light-v10',
        center: [-74.0066, 40.7135],
        zoom: 15.5,
        pitch: 45,
        bearing: -17.6,
        container: 'map',
        antialias: true
    });
    map.transform.fov = 1.5;

    // The 'building' layer in the mapbox-streets vector source contains building-height
    // data from OpenStreetMap.
    map.on('load', function () {
        // Insert the layer beneath any symbol layer.
        var layers = map.getStyle().layers;

        var labelLayerId;
        for (var i = 0; i < layers.length; i++) {
            if (layers[i].type === 'symbol' && layers[i].layout['text-field']) {
                labelLayerId = layers[i].id;
                break;
            }
        }

        map.addLayer(
            {
                'id': '3d-buildings',
                'source': 'composite',
                'source-layer': 'building',
                'filter': ['==', 'extrude', 'true'],
                'type': 'fill-extrusion',
                'minzoom': 15,
                'paint': {
                    'fill-extrusion-color': '#aaa',

                    // use an 'interpolate' expression to add a smooth transition effect to the
                    // buildings as the user zooms in
                    'fill-extrusion-height': [
                        'interpolate',
                        ['linear'],
                        ['zoom'],
                        15,
                        0,
                        15.05,
                        ['get', 'height']
                    ],
                    'fill-extrusion-base': [
                        'interpolate',
                        ['linear'],
                        ['zoom'],
                        15,
                        0,
                        15.05,
                        ['get',...