Extrude polygons for 3D indoor mapping
Create a 3D indoor map with the fill-extrude-height
paint property.
<!DOCTYPE html><html><head><meta charset="utf-8"><title>Extrude polygons for 3D indoor mapping</title><meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no"><link href="https://api.mapbox.com/mapbox-gl-js/v2.1.1/mapbox-gl.css" rel="stylesheet"><script src="https://api.mapbox.com/mapbox-gl-js/v2.1.1/mapbox-gl.js"></script><style>body { margin: 0; padding: 0; }#map { position: absolute; top: 0; bottom: 0; width: 100%; }</style></head><body><div id="map"></div><script> // TO MAKE THE MAP APPEAR YOU MUST // ADD YOUR ACCESS TOKEN FROM // https://account.mapbox.com mapboxgl.accessToken = '<your access token here>';var map = new mapboxgl.Map({container: 'map',style: 'mapbox://styles/mapbox/streets-v11',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.mapbox.com/mapbox-gl-js/assets/indoor-3d-map.geojson'});map.addLayer({'id': 'room-extrusion','type': 'fill-extrusion','source': 'floorplan','paint': {// See the Mapbox Style Specification for details on data expressions.// https://docs.mapbox.com/mapbox-gl-js/style-spec/#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>