145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM is free software: 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.
|
|
|
|
OpenFOAM 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 General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
Class
|
|
Foam::buildCGALPolyhedron
|
|
|
|
Description
|
|
Convert a triSurface into a CGAL Polyhedron
|
|
|
|
SourceFiles
|
|
buildCGALPolyhedron.C
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#ifndef buildCGALPolyhedron_H
|
|
#define buildCGALPolyhedron_H
|
|
|
|
#include "triSurface.H"
|
|
#include <CGAL/Simple_cartesian.h>
|
|
#include <CGAL/Polyhedron_incremental_builder_3.h>
|
|
#include <CGAL/Polyhedron_3.h>
|
|
|
|
typedef CGAL::Simple_cartesian<double> Kernel;
|
|
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
|
|
typedef Polyhedron::HalfedgeDS HalfedgeDS;
|
|
typedef Polyhedron::Vertex Vertex;
|
|
typedef Polyhedron::Vertex_iterator Vertex_iterator;
|
|
typedef Kernel::Point_3 Point_3;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
|
|
/*---------------------------------------------------------------------------*\
|
|
Class buildCGALPolyhedron Declaration
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
class buildCGALPolyhedron
|
|
:
|
|
public CGAL::Modifier_base<HalfedgeDS>
|
|
{
|
|
// Private data
|
|
|
|
//- Reference to triSurface to convert
|
|
const Foam::triSurface& surf_;
|
|
|
|
|
|
// Private Member Functions
|
|
|
|
//- Disallow default bitwise copy construct
|
|
buildCGALPolyhedron(const buildCGALPolyhedron&);
|
|
|
|
//- Disallow default bitwise assignment
|
|
void operator=(const buildCGALPolyhedron&);
|
|
|
|
|
|
public:
|
|
|
|
// Constructors
|
|
|
|
//- Construct with reference to triSurface
|
|
explicit buildCGALPolyhedron(const triSurface& surf)
|
|
:
|
|
CGAL::Modifier_base<HalfedgeDS>(),
|
|
surf_(surf)
|
|
{}
|
|
|
|
|
|
//- Destructor
|
|
~buildCGALPolyhedron(){}
|
|
|
|
|
|
// Member Operators
|
|
|
|
//- operator() of this `modifier' called by delegate function of
|
|
// Polyhedron
|
|
void operator()(HalfedgeDS& hds)
|
|
{
|
|
typedef HalfedgeDS::Traits Traits;
|
|
typedef Traits::Point_3 Point;
|
|
|
|
// Postcondition: `hds' is a valid polyhedral surface.
|
|
CGAL::Polyhedron_incremental_builder_3<HalfedgeDS> B(hds, false);
|
|
|
|
B.begin_surface
|
|
(
|
|
surf_.points().size(), // n points
|
|
surf_.size(), // n facets
|
|
2*surf_.edges().size() // n halfedges
|
|
);
|
|
|
|
forAll(surf_.points(), pI)
|
|
{
|
|
const Foam::point& p = surf_.points()[pI];
|
|
|
|
B.add_vertex(Point(p.x(), p.y(), p.z()));
|
|
}
|
|
|
|
forAll(surf_, fI)
|
|
{
|
|
B.begin_facet();
|
|
|
|
B.add_vertex_to_facet(surf_[fI][0]);
|
|
B.add_vertex_to_facet(surf_[fI][1]);
|
|
B.add_vertex_to_facet(surf_[fI][2]);
|
|
|
|
B.end_facet();
|
|
}
|
|
|
|
B.end_surface();
|
|
}
|
|
};
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
} // End namespace Foam
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
#endif
|
|
|
|
// ************************************************************************* //
|