CGAL users discussion list

["Farhad Bazyari" <>]

Hello,

Sorry this might be a very newbie question.
I'm looking for a simple example that constructs an alpha_shape and assigns 
user info (a pointer in this case) to each vertix.
Something similar to example 38.5.2

This arrangement doesn't compile:

typedef CGAL::Exact_predicates_inexact_constructions_kernel Gt;

typedef CGAL::Triangulation_vertex_base_with_info_3<CGAL::Color, Gt>          
Vb;
typedef CGAL::Alpha_shape_cell_base_3<Gt>            Fb;
typedef CGAL::Triangulation_data_structure_3<Vb,Fb>  Tds;
typedef CGAL::Delaunay_triangulation_3<Gt,Tds>       Triangulation_3;
typedef CGAL::Alpha_shape_3<Triangulation_3>         Alpha_shape_3;

typedef Gt::Point_3                                  Point;
typedef Alpha_shape_3::Alpha_iterator               Alpha_iterator;

Many thanks,
Farhad

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