mirror of https://github.com/CGAL/cgal
89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// Copyright (c) 2015 GeometryFactory (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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//
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//
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// Author(s) : Jane Tournois
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#ifndef CGAL_POLYGON_MESH_PROCESSING_BOUNDING_BOX_H
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#define CGAL_POLYGON_MESH_PROCESSING_BOUNDING_BOX_H
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#include <CGAL/Bbox_3.h>
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#include <boost/graph/graph_traits.hpp>
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#include <CGAL/Polygon_mesh_processing/internal/named_function_params.h>
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#include <CGAL/Polygon_mesh_processing/internal/named_params_helper.h>
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#include <boost/foreach.hpp>
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namespace CGAL {
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namespace Polygon_mesh_processing {
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/*!
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* \ingroup PkgPolygonMeshProcessing
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* computes a bounding box of a polygon mesh.
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*
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* @tparam PolygonMesh a model of `HalfedgeListGraph`
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* that has an internal property map for `CGAL::vertex_point_t`
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* @tparam NamedParameters a sequence of \ref namedparameters
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*
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* @param pmesh a polygon mesh
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* @param np optional sequence of \ref namedparameters among the ones listed below
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*
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* \cgalNamedParamsBegin
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* \cgalParamBegin{vertex_point_map} the property map with the points associated to the vertices of `pmesh` \cgalParamEnd
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* \cgalNamedParamsEnd
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*
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* @return a bounding box of `pmesh`
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*/
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template<typename PolygonMesh, typename NamedParameters>
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CGAL::Bbox_3 bbox_3(const PolygonMesh& pmesh,
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const NamedParameters& np)
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{
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using boost::choose_const_pmap;
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using boost::get_param;
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typename GetVertexPointMap<PolygonMesh, NamedParameters>::const_type
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vpm = choose_const_pmap(get_param(np, CGAL::vertex_point),
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pmesh,
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CGAL::vertex_point);
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typedef typename boost::graph_traits<PolygonMesh>::halfedge_descriptor halfedge_descriptor;
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halfedge_descriptor h0 = *(halfedges(pmesh).first);
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CGAL::Bbox_3 bb = get(vpm, target(h0, pmesh)).bbox();
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BOOST_FOREACH(halfedge_descriptor h, halfedges(pmesh))
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{
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bb += get(vpm, target(h, pmesh)).bbox();
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}
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return bb;
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}
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template<typename PolygonMesh>
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CGAL::Bbox_3 bbox_3(const PolygonMesh& pmesh)
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{
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return bbox_3(pmesh,
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CGAL::Polygon_mesh_processing::parameters::all_default());
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}
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}
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}
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#endif //CGAL_POLYGON_MESH_PROCESSING_BOUNDING_BOX_H
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