CGAL users discussion list

[Andreas Fabri <>]

Hi Yifei,

The idea of the id is that it allows you to iterate
over the vertices once in order to associate indices
from 0 to |V|-1 to them.  This allows then to associate
information to vertices in arrays.

best regards,

andreas



On 29/08/2011 20:09, Yifei Li wrote:
> Hi all,
>
> Given a polyhedron, how do you access a point by its id? I did not find
> any API in the documentation.
>
>   My polyhedron is declared as follows:
>
> template <class Refs, class P>
> struct MyVertex : public CGAL::HalfedgeDS_vertex_max_base_with_id<Refs,
> P, unsigned int> {
> ...
> };
>
> struct MyItems : public CGAL::Polyhedron_items_with_id_3 {
> ...
> };
>
> typedef CGAL::Polyhedron_3<Kernel, MyItems> Polyhedron
>
> Thanks
>
> Yifei


--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri