CGAL users discussion list

["Lehtonen, Matti/HIIT" <>]

Hi!

I am using the code from chapter "47.3.2   Mesh Generation From a Polyhedral
Domain", the elephant case to generate different meshes from [classified] 
point
cloud.

The problem that I am currently facing is some type mismatch for tetrahedron
struct K: public CGAL::Exact_predicates_inexact_constructions_kernel {};
typedef CGAL::Mesh_3::Robust_intersection_traits_3<K> Geom_traits;
typedef CGAL::Polyhedron_3<Geom_traits> Polyhedron;
typedef Polyhedron::Point_3 Point;
typedef Polyhedron::HalfedgeDS HalfedgeDS;
typedef CGAL::Polyhedral_mesh_domain_3<Polyhedron, Geom_traits> Mesh_domain;
typedef CGAL::Mesh_triangulation_3<Mesh_domain>::type Tr;
typedef CGAL::Mesh_complex_3_in_triangulation_3<Tr> C3t3;

{
        std::ofstream                   vrml_file( "mesh-1-out.wrl" );
        CGAL::VRML_2_ostream    vrml_stream( vrml_file );

        for( C3t3::Facet_iterator f = c3t3.facets_begin();
                 f != c3t3.facets_end(); ++f )
        {
                C3t3::Triangulation::Triangle   t = 
c3t3.triangulation().triangle( *f );

                vrml_stream << t;
        }

        for( C3t3::Cell_iterator c = c3t3.cells_begin();
                         c != c3t3.cells_end(); ++c )
        {
// This line won't compile...
                C3t3::Triangulation::Tetrahedron                t =
c3t3.triangulation().tetrahedron( *c );
// This compiles & links
                ///C3t3::Triangulation::Tetrahedron     t;

                vrml_stream << t;
        }

        vrml_stream.close();
}

Everything seems to be okay, but for some reason I got following error (see 
end
of mail), which looks like that tetrahedron other than
C3t3::Triangulation::Tetrahedron is returned. The triangle part works fine, so
what I am doing wrong?

CGAL version is 3.5.1-1 (Ubuntu 10.04) and GCC is 4.4.3-4ubuntu5.

Lehtonen, Matti

Researcher, head programmer - Helsinki Institute for Information Technology 
HIIT
http://www.hiit.fi/

The error message by GCC:
triangulator.cpp:218: error: no matching function for call to
‘CGAL::Regular_triangulation_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_data_structure_3<CGAL::Mesh_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Triangulation_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_vertex_base_3<void> > >,
CGAL::Mesh_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Regular_triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_cell_base_3<void> >,
std::list<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double>,
std::allocator<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double> > > > > >
>::tetrahedron(CGAL::Mesh_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Regular_triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_ds_cell_base_3<CGAL::Triangulation_data_structure_3<CGAL::Mesh_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Triangulation_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_vertex_base_3<void> > >,
CGAL::Mesh_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Regular_triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_cell_base_3<void> >,
std::list<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double>,
std::allocator<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double> > > > > > > >,
std::list<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double>,
std::allocator<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double> > > > >&)’
/usr/include/CGAL/Triangulation_3.h:387: note: candidates are: typename
GT::Tetrahedron_3 CGAL::Triangulation_3<GT, Tds>::tetrahedron(typename
Tds::Cell_handle) const [with GT =
CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, Tds =
CGAL::Triangulation_data_structure_3<CGAL::Mesh_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Triangulation_vertex_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_vertex_base_3<void> > >,
CGAL::Mesh_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Polyhedral_mesh_domain_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Triangle_accessor_3<CGAL::Polyhedron_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>,
CGAL::Polyhedron_items_3, CGAL::HalfedgeDS_default, std::allocator<int> >,
CGAL::Mesh_3::Robust_intersection_traits_3<K> > >,
CGAL::Regular_triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >,
CGAL::Triangulation_cell_base_3<CGAL::Robust_weighted_circumcenter_filtered_traits_3<CGAL::Regular_triangulation_filtered_traits_3<CGAL::Mesh_3::Robust_intersection_traits_3<K>
> >, CGAL::Triangulation_ds_cell_base_3<void> >,
std::list<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double>,
std::allocator<CGAL::Weighted_point<CGAL::Point_3<CGAL::Filtered_kernel<CGAL::Simple_cartesian<double>
> >, double> > > > > >]

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