mirror of https://github.com/CGAL/cgal
204 lines
8.2 KiB
C++
204 lines
8.2 KiB
C++
// Copyright (c) 2012 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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// You can redistribute it and/or modify it under the terms of the GNU
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// General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0-or-later
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//
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//
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// Author(s) : Sebastien Loriot
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//
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#ifndef CGAL_AABB_FACE_GRAPH_TRIANGLE_PRIMITIVE_H
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#define CGAL_AABB_FACE_GRAPH_TRIANGLE_PRIMITIVE_H
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#include <CGAL/license/AABB_tree.h>
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#include <CGAL/disable_warnings.h>
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#include <CGAL/AABB_primitive.h>
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#include <CGAL/boost/graph/property_maps.h>
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#include <CGAL/Default.h>
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#include <boost/mpl/if.hpp>
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namespace CGAL {
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/*!
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* \ingroup PkgAABBTreeRef
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* Primitive type for a facet of a polyhedral surface.
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* It wraps a handle to a facet of a polyhedron to a 3D triangle.
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* The polyhedron from which the primitive is built should not be deleted
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* while the AABB tree holding the primitive is in use.
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* The triangle type of the primitive (`Datum`) is `CGAL::Kernel_traits< boost::property_traits< VertexPointPMap >::%value_type >::%Kernel::Triangle_3`.
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*
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* \cgalModels `AABBPrimitiveWithSharedData`
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*
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*\tparam FaceGraph is a model of the face graph concept.
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*\tparam VertexPointPMap is a property map with `boost::graph_traits<FaceGraph>::%vertex_descriptor`
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* as key type and a \cgal Kernel `Point_3` as value type.
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* The default is `typename boost::property_map< FaceGraph,vertex_point_t>::%type`.
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*\tparam OneFaceGraphPerTree is either `CGAL::Tag_true` or `CGAL::Tag_false`.
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* In the former case, we guarantee that all the primitives will be from a
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* common `FaceGraph` and some data will be factorized so that the size of
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* the primitive is reduced. In the latter case, the primitives can be from
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* different graphs and extra storage is required in the primitives. The default is `CGAL::Tag_true`.
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*\tparam CacheDatum is either `CGAL::Tag_true` or `CGAL::Tag_false`. In the former case, the datum is stored
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* in the primitive, while in the latter it is constructed on the fly to reduce the memory footprint.
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* The default is `CGAL::Tag_false` (datum is not stored).
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*\sa `AABBPrimitive`
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*\sa `AABB_primitive<Id,ObjectPropertyMap,PointPropertyMapPolyhedron,ExternalPropertyMaps,CacheDatum>`
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*\sa `AABB_halfedge_graph_segment_primitive<HalfedgeGraph,OneHalfedgeGraphPerTree,CacheDatum>`
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*/
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template < class FaceGraph,
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class VertexPointPMap = Default,
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class OneFaceGraphPerTree = Tag_true,
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class CacheDatum=Tag_false >
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class AABB_face_graph_triangle_primitive
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#ifndef DOXYGEN_RUNNING
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: public AABB_primitive<typename boost::mpl::if_<OneFaceGraphPerTree,
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typename boost::graph_traits<FaceGraph>::face_descriptor,
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std::pair<typename boost::graph_traits<FaceGraph>::face_descriptor, const FaceGraph*> >::type,
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Triangle_from_face_descriptor_map<
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FaceGraph,
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typename Default::Get<VertexPointPMap,
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typename boost::property_map< FaceGraph,
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vertex_point_t>::const_type >::type>,
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One_point_from_face_descriptor_map<
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FaceGraph,
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typename Default::Get<VertexPointPMap,
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typename boost::property_map< FaceGraph,
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vertex_point_t>::const_type >::type>,
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OneFaceGraphPerTree,
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CacheDatum >
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#endif
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{
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typedef typename Default::Get<VertexPointPMap, typename boost::property_map< FaceGraph, vertex_point_t>::const_type >::type VertexPointPMap_;
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typedef typename boost::graph_traits<FaceGraph>::face_descriptor FD;
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typedef typename boost::mpl::if_<OneFaceGraphPerTree, FD, std::pair<FD, const FaceGraph*> >::type Id_;
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typedef Triangle_from_face_descriptor_map<FaceGraph,VertexPointPMap_> Triangle_property_map;
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typedef One_point_from_face_descriptor_map<FaceGraph,VertexPointPMap_> Point_property_map;
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typedef AABB_primitive< Id_,
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Triangle_property_map,
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Point_property_map,
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OneFaceGraphPerTree,
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CacheDatum > Base;
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FD make_id(FD fd, const FaceGraph&, Tag_true)
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{
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return fd;
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}
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std::pair<FD, const FaceGraph*> make_id(FD fd, const FaceGraph& fg, Tag_false)
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{
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return std::make_pair(fd, &fg);
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}
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public:
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#ifdef DOXYGEN_RUNNING
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/// \name Types
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/// @{
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/*!
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The point type.
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*/
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typedef boost::property_traits<VertexPointPMap>::value_type Point;
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/*!
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Geometric data type.
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*/
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typedef Kernel_traits<Point>::Kernel::Triangle_3 Datum;
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/*!
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Id type:
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- `boost::graph_traits<FaceGraph>::%face_descriptor` if `OneFaceGraphPerTree` is `CGAL::Tag_true`
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- `std::pair<boost::graph_traits<FaceGraph>::%face_descriptor, FaceGraph>` if `OneFaceGraphPerTree` is `CGAL::Tag_false`
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*/
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unspecified_type Id;
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/// @}
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/*!
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If `OneFaceGraphPerTree` is CGAL::Tag_true, constructs a `Shared_data` object from a reference to the polyhedon `graph`.
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*/
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static unspecified_type construct_shared_data( FaceGraph& graph );
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#else
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typedef typename Base::Id Id;
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#endif
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typedef typename boost::graph_traits<FaceGraph>::face_descriptor face_descriptor;
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// constructors
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/*!
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\tparam Iterator an input iterator with `Id` as value type.
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Constructs a primitive.
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If `VertexPointPMap` is the default of the class, an additional constructor
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is available with `vppm` set to `get(vertex_point, graph)`.
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*/
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template <class Iterator>
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AABB_face_graph_triangle_primitive(Iterator it, const FaceGraph& graph, VertexPointPMap_ vppm)
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: Base( Id_(make_id(*it, graph, OneFaceGraphPerTree())),
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Triangle_property_map(const_cast<FaceGraph*>(&graph),vppm),
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Point_property_map(const_cast<FaceGraph*>(&graph),vppm) )
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{}
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/*!
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Constructs a primitive.
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If `VertexPointPMap` is the default of the class, an additional constructor
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is available with `vppm` set to `get(vertex_point, graph)`.
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*/
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AABB_face_graph_triangle_primitive(face_descriptor fd, const FaceGraph& graph, VertexPointPMap_ vppm)
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: Base( Id_(make_id(fd, graph, OneFaceGraphPerTree())),
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Triangle_property_map(const_cast<FaceGraph*>(&graph),vppm),
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Point_property_map(const_cast<FaceGraph*>(&graph),vppm) )
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{}
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#ifndef DOXYGEN_RUNNING
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template <class Iterator>
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AABB_face_graph_triangle_primitive(Iterator it, const FaceGraph& graph)
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: Base( Id_(make_id(*it, graph, OneFaceGraphPerTree())),
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Triangle_property_map(const_cast<FaceGraph*>(&graph)),
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Point_property_map(const_cast<FaceGraph*>(&graph)) )
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{}
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AABB_face_graph_triangle_primitive(face_descriptor fd, const FaceGraph& graph)
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: Base( Id_(make_id(fd, graph, OneFaceGraphPerTree())),
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Triangle_property_map(const_cast<FaceGraph*>(&graph)),
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Point_property_map(const_cast<FaceGraph*>(&graph)) )
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{}
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#endif
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/// \internal
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typedef internal::Cstr_shared_data<FaceGraph, Base, Triangle_property_map, Point_property_map, OneFaceGraphPerTree> Cstr_shared_data;
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/// \internal
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static
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typename Cstr_shared_data::Shared_data
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construct_shared_data(const FaceGraph& graph)
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{
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return Cstr_shared_data::construct_shared_data(const_cast<FaceGraph&>(graph));
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}
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static
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typename Cstr_shared_data::Shared_data
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construct_shared_data(const FaceGraph& graph, const VertexPointPMap_& vpm)
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{
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return Cstr_shared_data::construct_shared_data(const_cast<FaceGraph&>(graph), vpm);
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}
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};
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} // end namespace CGAL
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#include <CGAL/enable_warnings.h>
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#endif // CGAL_AABB_FACE_GRAPH_TRIANGLE_PRIMITIVE_H
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