Determines if roadway point is above a surface, with no minimum distance specified.
public bool IsAboveSurface( ObjectId surfaceId, ObjectId alignmentId, IPoint point )
Public Function IsAboveSurface ( surfaceId As ObjectId, alignmentId As ObjectId, point As IPoint ) As Boolean
public: bool IsAboveSurface( ObjectId surfaceId, ObjectId alignmentId, IPoint^ point )