[libredwg] More on the SAT/SAB novel

[Rodrigo Rodrigues da Silva]

Although I had been lead to think that the SAT/SAB file format used 
inside 3D_SOLID, BODY and REGION was "open", based on news from years 
ago, now what I suspected turned out to be confirmed:

The SAB/SAT formats are not publicly documented.

Check this: 
http://forums.spatial.com/t5/3D-Modeling/SAT-file-format-description/m-p/1092

Parsing the SAT (text) could be feasible with some scarce documentation 
that I've found and just looking at files, but reverse-engineering the 
SAB seems beyond the scope of this project. Of course, we could still 
try to find the sentinel which marks the end of the SAB stream to 
prevend decode_3d_solid from segfaulting.

Directly from LibrePlanet2010,
Rodrigo

--
Rodrigo Rodrigues da Silva
GNU LibreDWG maintainer
FSF Associate Member #7788
PoliGNU - Grupo de Estudos de Software Livre da Poli/USP