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[Grzegorz JABLONSKI <>]

The same error occurs, when I use Alpha_shape_vertex_base_2:

//**********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_p;
//typedef CGAL::Triangulation_vertex_base_with_info_2<unsigned, GT, Vb_p> 
Vb_info;
typedef CGAL::Triangulation_vertex_base_with_info_2<unsigned, K> Vb_info;
//typedef CGAL::Periodic_2_triangulation_face_base_2<GT>      Fb;


typedef CGAL::Alpha_shape_vertex_base_2<K, Vb_info>     Vb;
typedef CGAL::Alpha_shape_face_base_2<K>                                      
          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;

Grzegorz
________________________________________
From: 

 
[]
 on behalf of Marc Glisse 
[]
Sent: Friday, July 08, 2016 8:24 PM
To: 

Subject: Re: [cgal-discuss] Alpha_shape_2 using 
Periodic_2_Delaunay_Triangulation_2

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

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