CGAL users discussion list

["Laurent Rineau (CGAL/GeometryFactory)" <>]

Le Thursday, August 24, 2017 11:41:17 AM CEST Michael Bieri a écrit :
> Thanks Laurent for your answer.
> 
> Writing the file seems to work, but first of all, the file is even larger
> than the ASCII medit format. Second, I have no idea about the file format.
> As far as I see it just writes the internal binary representation into a
> file? I guess that's not easy to process with a program outside of the CGAL
> world?

Indeed, those functions are supposed to work in pair: the function to save 
and the function to load. The format ensures that (almost) all the 
information is saved and restored (but the information on edges of 1D-
curves).

I am not sure to know why the resulting file are larger than the export in 
ASCII. Probably because the export in ASCII looses a lot of information 
(especially if you have not set the precision of ASCII representation of 
doubles to 17), where the binary I/O functions save and load almost 
everything.

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/