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Re: [cgal-discuss] Eroormessage of CSG cut


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  • From: Maxime Gimeno <>
  • To:
  • Subject: Re: [cgal-discuss] Eroormessage of CSG cut
  • Date: Thu, 12 Mar 2020 16:27:18 +0100
  • Authentication-results: mail3-smtp-sop.national.inria.fr; spf=None ; spf=Pass ; spf=None
  • Ironport-phdr: 9a23:2mcCsBGg9h/vU5ILS0nEfZ1GYnF86YWxBRYc798ds5kLTJ75psuwAkXT6L1XgUPTWs2DsrQf1LqQ7viocFdDyKjCmUhKSIZLWR4BhJdetC0bK+nBN3fGKuX3ZTcxBsVIWQwt1Xi6NU9IBJS2PAWK8TXhpQMUAQj1YAppOvzuSMmVlNWyz+n0+pvJYgwOiiD6eqJ3NBzxrAPfsY4djoJmb6ow0RDUuWAbR+MDzmxhIRefng33+9yr1J9l6SVZ/fw7pOBaVqCvWq0oTLlVRBsnNm0z44W/sBDTTA6CoHQdV2gQlTJHBgHE6FfxWZKn4XiyjfZ0xCTPZZ6+drszQzn3t/46Gi+tsz8OMnsCyE+Sj8VxiKxBpxf4/k5wxofVZMeeM/8sJ/qAL+NffnJIW4NqbwIEAo64aNFRXe8IPOIdqIik4lVX8kX4Cg6rC+fijDRPgy2uhPFo46EaCQjDmTcYMZcWqn2N9Yf6Ma4TVaa+y6yalTg=

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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