CGAL users discussion list

[Kwok Jasper <>]

Thank you very much.

The points that I input is from a bunny model

The input points are from here
http://www.cse.ust.hk/~jamesjjx/bunny_final.pts

May I ask what may I do with the stack overflow ?
Thank you very much for your help.


> Date: Tue, 20 Jan 2009 11:30:21 +0100
> From:
> To:
> Subject: Re: [cgal-discuss]
>
> Kwok Jasper wrote:
> > Thanks
> >
> > I have used
> > typedef CGAL::Exact_predicates_inexact_constructions_kernel K1
> >
> > before.
> >
> > However, it takes nearly 1 hour to insert about 300000 points.
> > Therefore, I have switched from
> >
> > Exact_predicates_inexact_constructions_kernel to Cartesian.
> >
> > And except by using exact predicate,
> > may I ask if it still exist some other ways to prevent the stack
> > overflow in version 3.3.1 of CGAL?
>
> I don't think so.
>
> What is special about your data set that it triggers this stack overflow?
> Is it a lot of points on a sphere, or something like that?
> I would be glad to get access to it to see what going wrong and if we can
> do something about it.
>
>
> > Thank you
> > > Date: Tue, 20 Jan 2009 11:16:04 +0100
> > > From:
> > > To:
> > > Subject: Re: [cgal-discuss]
> > >
> > > Kwok Jasper wrote:
> > > > Excuse me, may I ask something about 3D Delaunay triangulation in CGAL?
> > > >
> > > > I have tried to use the following types.
> > > >
> > > > typedef CGAL::Cartesian<double> K1;
> > > > typedef CGAL::Delaunay_triangulation_3<K1> Triangulation;
> > > > typedef Triangulation: :Point Point_tr;
> > > >
> > > >
> > > > when I insert about 300000 points into the triangulation,
> > > > I got a stack overflow problem.
> > > >
> > > > May I ask what may be the possible reason for the stack overflow to
> > occur?
> > > >
> > > >
> > > >
> > ------------------------------------------------------------------------
> > >
> > > With Cartesian<double> anything can go on. In order to avoid
> > > floiting point arithmetic related problems you should use the
> > >
> > > typedef CGAL::Exact_predicates_inexact_constructions_kernel K1;
> > >
> > > andreas
> > >
> > >
> > >
> > >
> > >
> > > --
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> >
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> --
> Sylvain Pion
> INRIA Sophia-Antipolis
> Geometrica Project-Team
> CGAL, http://cgal.org/
>

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