90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2011 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "buildCGALPolyhedron.H"
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::buildCGALPolyhedron::buildCGALPolyhedron
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(
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const Foam::triSurface& surf
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)
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:
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CGAL::Modifier_base<HalfedgeDS>(),
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surf_(surf)
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{}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::buildCGALPolyhedron::~buildCGALPolyhedron()
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{}
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// * * * * * * * * * * * * * * Member Operators * * * * * * * * * * * * * * //
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void Foam::buildCGALPolyhedron::operator()
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(
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HalfedgeDS& hds
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)
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{
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typedef typename HalfedgeDS::Traits Traits;
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typedef typename Traits::Point_3 Point;
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// Postcondition: `hds' is a valid polyhedral surface.
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CGAL::Polyhedron_incremental_builder_3<HalfedgeDS> B(hds, false);
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B.begin_surface
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(
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surf_.points().size(), // n points
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surf_.size(), // n facets
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2*surf_.edges().size() // n halfedges
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);
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forAll(surf_.points(), pI)
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{
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const Foam::point& p = surf_.points()[pI];
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B.add_vertex(Point(p.x(), p.y(), p.z()));
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}
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forAll(surf_, fI)
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{
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B.begin_facet();
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B.add_vertex_to_facet(surf_[fI][0]);
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B.add_vertex_to_facet(surf_[fI][1]);
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B.add_vertex_to_facet(surf_[fI][2]);
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B.end_facet();
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}
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B.end_surface();
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}
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// ************************************************************************* //
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