import MapService3D from '../mapServiceCommon/MapService3D'; function Maptalks3D() { MapService3D.apply(this, arguments); this.maxPitch = 85; this.zoomOffset = 1; } Maptalks3D.prototype = new MapService3D(); Maptalks3D.prototype.constructor = Maptalks3D; Maptalks3D.prototype.type = 'maptalks3D'; export default Maptalks3D;