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[cgal-discuss] Re: remeshing crash: a problem of the surface mesh generator


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  • From: fp2008 <>
  • To:
  • Subject: [cgal-discuss] Re: remeshing crash: a problem of the surface mesh generator
  • Date: Fri, 21 May 2010 00:27:10 -0700 (PDT)

Hi Andreas,

I attached three OFF files. The remeshing tool crashes quickly when processing box.off and glass-mug.off, though it gets stuck instead with flash.off.

best,

/Yi Li
-- 
Yi Li
LAAS - CNRS
7 avenue du Colonel Roche
31077 Toulouse, France

On 05/21/2010 09:13 AM, Andreas Fabri [via cgal-discuss] wrote:

Hello fp2008

Can you send us the data set, so that we can investigate.

andreas


On 21/05/2010 09:09, fp2008 wrote:

>
> There is a remeshing tool in the CGAL 3.6 demo app Polyhedron_3. It is not
> very stable and crashes often. It seems that this is a problem of the
> surface mesh generator.
>
> remesh with:
>    angle=25
>    sizing=10.8584
>    approx=1.08584
>    tag=1
> Build AABB tree...done (0.000999 ms)
> Insert initial point set... done (0.001 ms)
> Remesh...Legende of the following line: (#vertices,#steps,#facets,#bad
> edges,#bad vertices,)
> CGAL error: assertion violation!
> _expression_ :
> File       : ../CGAL-3.6/include/CGAL/Surface_mesher/Surface_mesher.h
> Line       : 400
> Explanation: Surface_mesher ERROR: A facet is not in conflict with its
> refinement point!
> Debugging informations:
>    Facet: (0x7f49340252c0, 2) = (-28.5 70.3082 -22.5545, -28.5 87.8543
> -30.1016, -28.5 78.0193 -5.07986)
>    Dual: (-8.49794e+17 20.3612 -162.845, -25.7086 82.8197 -17.6368)
>    Refinement point: -0 82.8197 -17.6368
>
> Refer to the bug-reporting instructions at
> http://www.cgal.org/bug_report.html
> Abort (core dumped)
>

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box.off (233 bytes) Download Attachment
flask.off (60K) Download Attachment
glass-mug.off (26K) Download Attachment


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