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property map to get the target point of a halfedge

This commit is contained in:
Sébastien Loriot 2012-05-09 17:10:21 +00:00
parent daca1eabbf
commit aa97a337c7
1 changed files with 26 additions and 4 deletions
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30
Polyhedron/include/CGAL/Polyhedron_3_property_map.h
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@ -30,8 +30,7 @@ namespace CGAL{
//property map
template <class Polyhedron>
struct Triangle_from_facet_property_map{
Triangle_from_facet_property_map(){}
Triangle_from_facet_property_map(Polyhedron&){}
Triangle_from_facet_property_map(Polyhedron* = NULL){}
//classical typedefs
typedef typename boost::mpl::if_<
typename boost::is_const<Polyhedron>::type,
@ -59,6 +58,7 @@ get(const Triangle_from_facet_property_map<Polyhedron>&,
template <class Polyhedron>
struct Segment_from_halfedge_property_map{
Segment_from_halfedge_property_map(Polyhedron* = NULL){}
//classical typedefs
typedef typename boost::mpl::if_<
typename boost::is_const<Polyhedron>::type,
@ -85,8 +85,7 @@ get(const Segment_from_halfedge_property_map<Polyhedron>&,
//property map to access a point from a Facet
template <class Polyhedron>
struct One_point_from_facet_property_map{
One_point_from_facet_property_map(){}
One_point_from_facet_property_map(Polyhedron&){}
One_point_from_facet_property_map(Polyhedron* = NULL){}
//classical typedefs
typedef typename boost::mpl::if_<
typename boost::is_const<Polyhedron>::type,
@ -106,6 +105,29 @@ get(const One_point_from_facet_property_map<Polyhedron>&,
return f.halfedge()->vertex()->point();
}
//property map to access a point from a Halfedge
template <class Polyhedron>
struct One_point_from_halfedge_property_map{
One_point_from_halfedge_property_map(Polyhedron* = NULL){}
//classical typedefs
typedef typename boost::mpl::if_<
typename boost::is_const<Polyhedron>::type,
const typename Polyhedron::Halfedge,
typename Polyhedron::Halfedge >::type key_type;
typedef typename Polyhedron::Traits::Kernel::Point_3 value_type;
typedef const value_type& reference;
typedef boost::lvalue_property_map_tag category;
};
//get function for property map
template <class Polyhedron>
inline
typename One_point_from_halfedge_property_map<Polyhedron>::reference
get(const One_point_from_halfedge_property_map<Polyhedron>&,
typename One_point_from_halfedge_property_map<Polyhedron>::key_type& h)
{
return h.vertex()->point();
}
} //namespace CGAL
#endif //CGAL_POLYHEDRON_SIMPLEX_PROPERTY_MAP_H