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[Mael <>]

Hello,

Your way to access geometric points is correct.

By default there is no index associated to vertices (internally, 
everything is done with pointers). However, you can use vertices with 
info (see e.g. this documentation example 
https://doc.cgal.org/latest/Triangulation_3/Triangulation_3_2regular_with_info_3_8cpp-example.html) 
and associate a unique ID to each of your vertex. Then you can simply 
get the ID with fvi->info().

Best,
Mael

On 18/06/2019 04:32, BRYang wrote:
> Hi, I am trying to compute the power diagram of some spheres, and access the
> indices of the vertices.
> For now, I access the vertices, edges and facets with the
> Finite_vertices_iterator fvi, Finite_edges_iterator fei and
> Finite_facets_iterator ffi, and access the vertices as follows:
> //vertex:
>     fvi->point()
> //two vertices of edge:
>     fei->first->vertex(fei->second)->point()
>     fei->first->vertex(fei->third)->point()
> //three vertices of facet:
>     ffi->first->vertex(0)->point()
>     ffi->first->vertex(1)->point()
>     ffi->first->vertex(2)->point()
>
> Am I doing it right?
>
> The other problem is that is there a way to access the indices of vertices
> of the edges and faces? Thank you!
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/