LDT <-> IES python3 ies2ldt.py Convert original.ies to result.ldt python3 ldt2ies.py Convert original.ldt to result.ies python3 ldt_interpolate.py <new mc> <new ng> Generate result.ldt from original.ldt by interpolating python3 ies_interpolate.py <new # vertical angles> <new # horizonal angles> Generate result.ies from original.ies by interpolating