CGAL users discussion list

[Kwok Jasper <>]

Thank you for your reply.

However, in the case that

vertice a,b,c form a triangle and vertice b,c,d for another triangle (i.e. when there are vertices shared by 2 triangles)
Then when the vertice b,c are removed, is it both of the triangles must be removed at the same time?

Or do we have any method to preserve one of the triangle (e.g only remove triangle abc but preserve triangle b,c,d)

Thank you very much
 




> Date: Wed, 31 Dec 2008 18:01:40 +0100
> From:
> To:
> Subject: Re: [cgal-discuss]
>
> Kwok Jasper wrote:
> > Excuse me, may I ask something about triangulation?
> >
> > may I ask if it is that when we want to remove a triangle form a 3D
> > triangulatrion, then we can just use facet iterator to remove a
> > particular facet?
>
> Hi,
>
> You cannot remove a triangle.
> You can remove a vertex (which will remove its incident cells/facets).
>
> > And may I also ask if CGAL provide a function for people to find the
> > circumradius of a triangle in a 3D triangulation?
>
> this is provided in the Kernel
> http://www.cgal.org/Manual/3.3/doc_html/cgal_manual/Kernel_23_ref/Function_squared_radius.html
>
> best
> Monique Teillaud
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