Public Property FacesByRayForScopePart( _
   ByVal ScopePart As Unknown, _
   ByVal Xorigin As Double, _
   ByVal Yorigin As Double, _
   ByVal Zorigin As Double, _
   ByVal Xdir As Double, _
   ByVal Ydir As Double, _
   ByVal Zdir As Double _
) As Object