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rAKA/src/geometry/tree_type_helper.hh
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tree_type_helper.hh
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/**
* @file tree_type_helper.hh
*
* @author Lucas Frerot <lucas.frerot@epfl.ch>
*
* @date creation: Fri Jan 04 2013
* @date last modification: Thu Jan 14 2016
*
* @brief Converts element types of a mesh to CGAL primitive types
*
* @section LICENSE
*
* Copyright (©) 2014, 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_TREE_TYPE_HELPER_HH__
#define __AKANTU_TREE_TYPE_HELPER_HH__
#include "aka_common.hh"
#include "line_arc.hh"
#include "triangle.hh"
#include "tetrahedron.hh"
#include "aabb_primitive.hh"
#include "mesh_geom_common.hh"
#include <CGAL/AABB_traits.h>
#include <CGAL/AABB_tree.h>
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
/// Replacement class for algorithm that can't use the AABB tree types
template<typename iterator>
struct VoidTree {
VoidTree(const iterator & begin, const iterator & end) {}
};
/// Helper class used to ease the use of CGAL AABB tree algorithm
template<class Primitive, class Kernel>
struct TreeTypeHelper {
static const bool is_valid = false;
typedef Primitive primitive_type;
typedef typename std::list<primitive_type> container_type;
typedef typename container_type::iterator iterator;
typedef typename container_type::const_iterator const_iterator;
typedef typename CGAL::Point_3<Kernel> point_type;
typedef VoidTree<iterator> tree;
};
/// Helper class used to ease the use of intersections
template<class TTHelper, class Query>
struct IntersectionTypeHelper;
/**
* Macro used to specialize TreeTypeHelper
* @param my_primitive associated primitive type
* @param my_query query_type
* @param my_kernel kernel type
*/
#define TREE_TYPE_HELPER_MACRO(my_primitive, my_query, my_kernel) \
template<> \
struct TreeTypeHelper<my_primitive<my_kernel>, my_kernel> { \
static const bool is_valid = true; \
typedef my_primitive<my_kernel> primitive_type; \
typedef my_primitive##_primitive aabb_primitive_type; \
typedef CGAL::Point_3<my_kernel> point_type; \
\
typedef std::list<primitive_type> container_type; \
typedef container_type::iterator iterator; \
typedef CGAL::AABB_traits<my_kernel, aabb_primitive_type> aabb_traits_type; \
typedef CGAL::AABB_tree<aabb_traits_type> tree; \
typedef tree::Primitive_id id_type; \
}; \
\
template<> \
struct IntersectionTypeHelper<TreeTypeHelper<my_primitive<my_kernel>, my_kernel>, my_query> { \
typedef boost::optional< \
TreeTypeHelper<my_primitive<my_kernel>, my_kernel>::tree::Intersection_and_primitive_id<my_query>::Type \
> intersection_type; \
}
TREE_TYPE_HELPER_MACRO(Triangle, Cartesian::Segment_3, Cartesian);
//TREE_TYPE_HELPER_MACRO(Line_arc, Spherical::Sphere_3, Spherical);
#undef TREE_TYPE_HELPER_MACRO
__END_AKANTU__
#endif // __AKANTU_TREE_TYPE_HELPER_HH__
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