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[Michael Bieri <>]

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?

Best regards,

Michael

On Wed, Aug 23, 2017 at 4:49 PM, Laurent Rineau (CGAL/GeometryFactory) <> wrote:

Le Wednesday, August 23, 2017 4:12:48 PM CEST Michael Bieri a écrit :
> Hi all,
>
> I'm generating meshes with up to several million nodes and save them
> with output_to_medit(medit_file) of
> CGAL::Mesh_complex_3_in_triangulation_3<Tr>.
>
> Since data transfer and reading the files is becoming a bit annoying, I
> wonder how I could save the mesh in a data format more suitable for large
> data, probably a binary format. I briefly browsed through the code and
> documentation, but I didn't find anything to write to binary or to write it
> quickly by myself.
>
> Is there an option, or do I need to write that from scratch?

There are undocumented functions in <CGAL/IO/File_binary_mesh_3.h>. I use
them a lot, and should be reliable. Know issue: once you have loaded a c3t3
from a file, all query to `c3t3.is_in_complex(Edge)` will return `false`,
because that piece of information is not saved in the file.

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


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