CGAL users discussion list

[Angelina Novacheva <>]

Many thanks! The v.set_point ( Point p) was what I was
looking for.
What problems should I expect with arithmetics? The
rest of the TDS stays the same, right - all the
neighbourhood information etc.?



--- 

 wrote:

> 
>  wrote:
> > 
> >  wrote:
> > 
> >> Hello,
> >>
> >> What is the easiest way to change only the
> geometric information 
> >> associated with the vertices of a Delaunay
> triangulation? (e.g. in 
> >> order to translate or rotate the hole point
> cloud)
> > 
> > As mentioned in the user manual of 3D
> Triangulation, using 
> > Triangulation_vertex_base_with_info_3 is the
> simplest way.
> 
> More precisely, it is a way to _add_ information.
> 
> You can add the rotation information in all vertices
> (but it will be 
> stored in each vertex even if it is common...).
> 
> If you want to change the point in a vertex, there
> is a
> v.set_point ( Point p) method in the
> TriangulationVertexBase_3 concept. 
> But you can hardly use this for changing the point
> after a rotation, due 
> to problems that would arise with arithmetics.
> -- 
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