Point position
m_pos_2D: The 2D position is the position of the point on the frame in "Frm" (Frame) coordinates.
m_pos_3D: The 3D position is the position of the point in the 3D "Org" (Original) coordinate system.
Associated frame
If the point was created from a 2D frame, then the "frame" variable contain a pointer to that frame. If the point was created froma 3D geometry, then the "frame" variable will contain "NULL".