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[calvin_cw <>]

I extended the polyhedron_3 class to include other parameters in each of the
point, edge, face class. 

When i tried to use the edge_collapse class, it send an error regarding the
vertex_index_map in the boost template. 

I managed to solve the problem in version 4.12.1 by including the following
line to extend the boost graph_traits and property map. 

******************
namespace boost {
        template <>
        struct boost::graph_traits<feSurfaceMesh> :
                public boost::graph_traits<Poly_3>
        {};
} // namespace boost

namespace boost {
        template <class Tag>
        struct property_map<feSurfaceMesh, Tag> :
                public property_map<Poly_3, Tag>
        {};
} //namespace boost
***********************

however, in the version 5.0, this error cropped up again, sending an error 

Severity        Code    Description     Project File    Line    Suppression 
State
Error   C2039   'value_type': is not a member of 
'boost::property_traits<bool>'
AutoBlocking2DFreeGLUT
D:\installedLibraries\CGAL-5.0.2\include\CGAL\Surface_mesh_simplification\Detail\Edge_collapse.h
71      


Question : Do I need to extend the boost::property_traits? If so, how do I
do it? 
thanks! 




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