get Fov Feature Collection
fun getFovFeatureCollection(userGeometry: GeoEngine.UserGeometry, featureTree: FeatureTree): FeatureCollection
Return a Feature Collection that contains the Features within the "field of view" triangle.
Return
A Feature Collection that contains the Features in the FOV triangle.
Parameters
user Geometry
Location, heading an FOV distance
feature Tree
The feature tree that we want to filter.