Display buildings in 3D
Use extrusions to display buildings' height in 3D.
<!DOCTYPE html><html><head><meta charset="utf-8" /><title>Display buildings in 3D</title><meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" /><script src="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.js"></script><link href="https://cdn.jsdelivr.net/npm/@goongmaps/goong-js@1.0.9/dist/goong-js.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>goongjs.accessToken = '8qzxZAuxcsctSlmOszInchP1A5GrmRBHJwCBCjO6';var map = new goongjs.Map({style: 'https://tiles.goong.io/assets/goong_map_web.json',center: [105.83991, 21.028],zoom: 15.5,pitch: 45,bearing: -17.6,container: 'map',antialias: true}); // The 'building' layer in the 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': 'VN_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', 'min_height']],'fill-extrusion-opacity': 0.6}},labelLayerId);});</script> </body></html>