CGAL users discussion list

[Andreas Fabri <>]

On 28/10/2011 14:19, Winnie Hellmann wrote:
> Hi everybody,
>
> I need to use triangulation vertex handles in the attached info
> structure. So what I want to do is something like this:
>
> struct Vertex_info
> {
> typename Triangulation::Vertex_handle the_handle;
> };
>
>
> typedef CGAL::Triangulation_euclidean_traits_2<Kernel> Traits;
>
> typedef CGAL::Triangulation_vertex_base_with_info_2<Vertex_info, Kernel>
> Vertex_base;
>
> typedef CGAL::Constrained_triangulation_face_base_2<Kernel> Face_base;
>
> typedef CGAL::Triangulation_data_structure_2<Vertex_base,Face_base>
> Data_structure;
>
> typedef CGAL::No_intersection_tag Itag;
>
> typedef CGAL::Constrained_Delaunay_triangulation_2<Traits,
> Data_structure, Itag> Triangulation;
>
> Unfortunately Triangulation is not known when defining Vertex_info.
> Currently I am messing around with pointers (which is really ugly
> combined with template-stuff!). Is there a nice solution for this? For
> example can I somehow rebind the vertex info?
>
> Thanks,
> Winnie Hellmann

Hi Winnie,

In this case you have to write your own vertex class and use the rebind.

http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Triangulation_3/Chapter_main.html#Subsection_38.4.4

best regards,

andreas