Maps a point from one coordinate system to a point in another
coordinate system. The coordinate system can be one of the following
constants.
UF_CSYS_ROOT_COORDS is the ABS of the displayed part.
UF_CSYS_WORK_COORDS is the ABS of the work part.
UF_CSYS_ROOT_WCS_COORDS is the WCS of the displayed part.
For example:
To convert a point from absolute coordinates of the displayed part to
the WCS:
input_csys = UF_CSYS_ROOT_COORDS;
output_csys = UF_CSYS_ROOT_WCS_COORDS;
To convert a point from the work part absolute coordinates to the
displayed part absolute coordinates:
input_csys = UF_CSYS_WORK_COORDS;
output_csys = UF_CSYS_ROOT_COORDS;