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[Marc Glisse <>]

On Fri, 8 Jul 2016, Grzegorz JABLONSKI wrote:

> I am trying to compile Alpha_shape_2 using Periodic_Delaunay_Triangulation_2. 
> Here is code I use:
>
> // CGAL headers
> #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
> #include <CGAL/Periodic_2_triangulation_filtered_traits_2.h>
> #include <CGAL/Periodic_2_Delaunay_triangulation_2.h>
> #include <CGAL/Triangulation_vertex_base_with_info_2.h>
> #include <CGAL/Alpha_shape_2.h>
>
> //Typedefs
> typedef CGAL::Exact_predicates_exact_constructions_kernel K;
> typedef CGAL::Periodic_2_triangulation_traits_2<K> GT;
> typedef CGAL::Periodic_2_triangulation_vertex_base_2<GT>    Vb;
> typedef CGAL::Triangulation_vertex_base_with_info_2<unsigned, GT, Vb> Vb_info;
> typedef CGAL::Periodic_2_triangulation_face_base_2<GT>      Fb;
> typedef CGAL::Triangulation_data_structure_2<Vb_info, Fb>    Tds;
> typedef CGAL::Periodic_2_Delaunay_triangulation_2<GT, Tds>  PDT;
> typedef PDT::Point   Point;
> typedef PDT::Point                                  Point_2;
>
> typedef CGAL::Alpha_shape_2<PDT> Alpha_shape_2;
>
> When I try to initialize Alpha_shape_2 object I get errors listed below. Any 
> idea if what I'm trying to do is possible?

One thing that is suspicious is that you are not using 
Alpha_shape_vertex_base_2.

--
Marc Glisse