CGAL users discussion list

[Maxime Gimeno <>]

Actually reduced1.off is not a valid OFF, it represents a mesh that is not manifold and not trianglated. Refinement functions require all those things.

Le jeu. 12 mars 2020 à 16:27, Maxime Gimeno <> a écrit :

Also, this input is not a valid surface mesh, as it dreams to have orientation problems. This is probably the origin of the exception.

Le jeu. 12 mars 2020 à 16:06, Maxime Gimeno <> a écrit :

Meshlab is able to read the off because it ignores  the N blahblah lines, which your CGAL version does not. Where did you find that off ? 

Le jeu. 12 mars 2020 à 16:01, J. Scheurich <> a écrit :

On 12.03.20 10:03, Andreas Fabri wrote:
>
> Honestly, how do you expect to get a helpful reply to this kind of
> message.
>
> Please provide a self contained example on gist.git.com together with
> a small data set where you get the exception, so that we can try to
> reproduce/analyze/fix
>

The test program is at

http://wdune.ourproject.org/examples/reduced.cpp

but the mesh .off data of

http://wdune.ourproject.org/examples/reduced1.off

can not be read by cgal (another bug ?), while meshlab can read it.

To view the execption, you can use white_dune (open source, but needs a lot
of libraries), there is a binary for MSWindows 10, MacOSX, Ubuntu LINUX,
Arch Linux,
OpenSuse Linux  and Debian Linux. It is also part of fedora 33.

Run

$ dune http://wdune.ourproject.org/examples/cgal_test.x3dv

and click to Group and then use Indexed(Face)Set -> boolean operations
-> cut

so long
MUFTI
 

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