I have released a new version of stl2dat-cp, a tool that generates .dat files for LDraw from .stl files.

The new version 1.40 includes:

• A fix for a bug in stl_edge::dump, which was causing erroneous output for some improperly generated STL files. This bug led to unauthorized memory access (SIGSEGV).

• I have added the -swapyz option, as LDraw has swapped Y and Z coordinates compared to STL.

When combined with the switch -m 0 0 0 2.5 0 0 0 -2.5 0 0 0 2.5, where 2.5 is the conversion factor from mm to LDraw units, and a negative transformation along the Z axis (which corresponds to Y), it is possible to generate LDraw models with the correct sizes and orientations.

I released version 1.41,

which fixes a bug with an unset boolean value. This bug caused text STL to be incorrectly detected in some cases, and it likely led to other undefined situations as well.