r = new maptalks.GLTFLayer('gltf').addTo(map);//添加一个gltf图层到地图上
        var gltfMarker = new maptalks.GLTFMarker(center, {
            symbol: {
                url: url6,
                modelHeight: 1000
                
            },
            
        });

        gltfMarker.addTo(gltflayer);
        gltfMarker.on('click', e => {
            alert(e.pickingId);
        });
        gltfMarker.on('mousemove', e => {
            map.setCursor('url(images/cursor.png) 9 0, auto');
     