CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

Could you please provide a minimal example showing the pb?

An potential pb I see in the line you  pasted:

... CGAL::vertex_external_index, m_oPolyhedron3 ) ).edge_index_map ...
                                                   ^
                                      this '.' is suspicious.


Sebastien.

On 06/30/2013 03:16 PM, pwr00 wrote:
> Hi!
> I am trying to do a polygon reduction with LindstromTurk cost but am unable
> to compile the code. It looks like this:
>
>     CGAL::Surface_mesh_simplification::LindstromTurk_cost<  Polyhedron3>
> oStop;
>
>     wlib::Int nNumRemovedEdges =
> CGAL::Surface_mesh_simplification::edge_collapse(
>           m_oPolyhedron3,
>           oStop,
>           CGAL::vertex_index_map( boost::get( CGAL::vertex_external_index,
> m_oPolyhedron3 ) ).edge_index_map( boost::get( CGAL::edge_external_index,
> m_oPolyhedron3 ) ) );
>
>
> where m_oPolyhedron3 is
> typedef CGAL::Simple_cartesian<  float>  Kernel;
> typedef CGAL::Polyhedron_3<  Kernel>  Polyhedron3;
>
>
> The compilation error that I get is:
>
> Impl/CGALWrapperImpl.cpp:72:33: note: in instantiation of function template
> specialization
> 'CGAL::Surface_mesh_simplification::edge_collapse<CGAL::Polyhedron_3&lt;CGAL::Simple_cartesian&lt;float>,
> CGAL::Polyhedron_items_3, HalfedgeDS_default, std::allocator<int>>,
> CGAL::Surface_mesh_simplification::LindstromTurk_cost<CGAL::Polyhedron_3&lt;CGAL::Simple_cartesian&lt;float>,
> CGAL::Polyhedron_items_3, HalfedgeDS_default, std::allocator<int>>>,
> CGAL::Polyhedron_edge_index_map_external<CGAL::Simple_cartesian&lt;float>,
> CGAL::Polyhedron_items_3, HalfedgeDS_default, std::allocator<int>>,
> boost::edge_index_t,
> CGAL::cgal_bgl_named_params<CGAL::Polyhedron_vertex_index_map_external&lt;CGAL::Simple_cartesian&lt;float>,
> CGAL::Polyhedron_items_3, HalfedgeDS_default, std::allocator<int>>,
> boost::vertex_index_t, boost::no_property>  >' requested here
>     wlib::Int nNumRemovedEdges =
> CGAL::Surface_mesh_simplification::edge_collapse(
>                                  ^
> /usr/local/include/CGAL/Surface_mesh_simplification/Policies/Edge_collapse/LindstromTurk_cost.h:49:15:
> note: candidate function not viable: requires 2 arguments, but 4 were
> provided
>    result_type operator()( Profile const&  aProfile, optional<Point>  const&
> aPlacement ) const
>                ^
> 9 warnings and 1 error generated.
> make: ***
> [../../../../build/intermediate-debug/CGALWrapper/Impl/CGALWrapperImpl.o]
> Error 1
>
>
>
> --
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> http://cgal-discuss.949826.n4.nabble.com/unable-to-compile-simplification-with-LinstromTurk-cost-tp4657735.html
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