cgal/AABB_tree/include/CGAL/AABB_triangle_primitive.h

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// Copyright (c) 2009, 2011 INRIA Sophia-Antipolis (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// You can redistribute it and/or modify it under the terms of the GNU
// General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Pierre Alliez, Stephane Tayeb, Sebastien Loriot
//
//******************************************************************************
// File Description :
//
//******************************************************************************
#ifndef CGAL_AABB_TRIANGLE_PRIMITIVE_H_
#define CGAL_AABB_TRIANGLE_PRIMITIVE_H_
#include <CGAL/internal/AABB_tree/Primitive_caching.h>
#include <CGAL/property_map.h>
#include <CGAL/Default.h>
#include <boost/type_traits/is_const.hpp>
#include <boost/type_traits/add_const.hpp>
#include <boost/type_traits/is_reference.hpp>
#include <boost/type_traits/add_reference.hpp>
#include <boost/mpl/if.hpp>
namespace CGAL {
namespace internal{
//use the property_map to access the point
template < class GeomTraits,
class Iterator,
class TrianglePropertyMap,
class PointPropertyMap,
bool cache_primitive >
class Triangle_point_accessor{
Triangle_point_accessor(PointPropertyMap pmap):m_Point_pmap(pmap){}
typedef typename PointPropertyMap::reference result_type;
template <class PrimitiveCaching>
result_type get_point(Iterator m_it,const PrimitiveCaching&) const
{
return get(m_Point_pmap,m_it);
}
private:
PointPropertyMap m_Point_pmap;
};
//use Datum to access the point
template < class GeomTraits,
class Iterator,
class TrianglePropertyMap,
bool cache_primitive >
struct Triangle_point_accessor<GeomTraits,Iterator,TrianglePropertyMap,::CGAL::Default,cache_primitive>{
Triangle_point_accessor( ::CGAL::Default ){}
typedef Primitive_caching<Iterator,TrianglePropertyMap,cache_primitive> Prim_caching;
typedef typename boost::mpl::if_<
boost::is_const<typename Prim_caching::result_type>,
typename boost::add_const<typename GeomTraits::Point_3>::type,
typename GeomTraits::Point_3
>::type const_type;
typedef typename boost::mpl::if_<
boost::is_reference<typename Prim_caching::result_type>,
typename boost::add_reference<const_type>::type,
const_type
>::type result_type;
result_type get_point(Iterator m_it,
const Prim_caching& pcaching) const
{
return pcaching.get_primitive(m_it).vertex(0);
}
};
}
template <class GeomTraits,
class Iterator,
class TrianglePropertyMap=boost::typed_identity_property_map<typename GeomTraits::Triangle_3>,
class PointPropertyMap=CGAL::Default,
bool cache_primitive=false>
class AABB_triangle_primitive :
public internal::Primitive_caching<Iterator,TrianglePropertyMap,cache_primitive>,
public internal::Triangle_point_accessor<GeomTraits,Iterator,TrianglePropertyMap,PointPropertyMap,cache_primitive>
{
// types
typedef internal::Primitive_caching<Iterator,TrianglePropertyMap,cache_primitive> Primitive_base;
typedef internal::Triangle_point_accessor<GeomTraits,Iterator,TrianglePropertyMap,PointPropertyMap,cache_primitive> Point_accessor_base;
public:
typedef typename GeomTraits::Point_3 Point; // point type
typedef typename GeomTraits::Triangle_3 Datum; // datum type
typedef Iterator Id; // Id type
// member data
private:
Id m_it;
public:
// constructors
AABB_triangle_primitive() {}
AABB_triangle_primitive(Id it,TrianglePropertyMap t_pmap=TrianglePropertyMap(), PointPropertyMap p_pmap=PointPropertyMap())
: Point_accessor_base(p_pmap), m_it(it)
{
this->set_primitive(it,t_pmap);
}
public:
Id& id() { return m_it; }
const Id& id() const { return m_it; }
typename Primitive_base::result_type datum() const {
return this->get_primitive(m_it);
}
/// Returns a point on the primitive
typename Point_accessor_base::result_type reference_point() const {
return this->get_point(m_it,*this);
}
};
} // end namespace CGAL
#endif // CGAL_AABB_TRIANGLE_PRIMITIVE_H_