getccxVolumesByFace returns std::map<int, int> with ID of volume
and a number of face as per CalculiX definition. The same function is
accessible for python and returns list with the same information, like
this: [[229, 3], [230, 3], [233, 2], [238, 2]]
write_face_load produces something like this in the .inp file:
***********************************************************
** element + CalculiX face + load in [MPa]
** written by write_face_load function
*DLOAD
** Load on face Face2
229,P3,10.0
230,P3,10.0
233,P2,10.0
238,P2,10.0
Optimised by wmayer
Signed-off-by: wmayer
Signed-off-by: Przemo Firszt <przemo@firszt.eu>