MapboxGL JS -以较低的缩放级别显示3d建筑物

mapboxgl.accessToken = 'YOUR_MAPBOX_ACCESS_TOKEN';
const map = new mapboxgl.Map({
    container: 'map',
    style: 'mapbox://styles/mapbox/streets-v11',
    center: [-74.5, 40],
    zoom: 15
});

map.on('load', function () {
    map.addLayer({
        'id': '3d-buildings',
        'source': 'composite',
        'filter': ['==', ['get', 'extrude'], 'true'],
        'type': 'fill-extrusion',
        'minzoom': 15,
        'paint': {
            'fill-extrusion-color': '#aaa',
            'fill-extrusion-height': ['get', 'height'],
            'fill-extrusion-base': ['get', 'min_height'],
            'fill-extrusion-opacity': .6
        }
    });

    // 控制 3D 建筑物的显示
    map.setFilter('3d-buildings', ['>=', ['zoom'], 15]);
});