delaunay.h

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/*
 *
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 *
 *
 *             OOFEM : Object Oriented Finite Element Code
 *
 *               Copyright (C) 1993 - 2025   Borek Patzak
 *
 *
 *
 *       Czech Technical University, Faculty of Civil Engineering,
 *   Department of Structural Mechanics, 166 29 Prague, Czech Republic
 *
 *  This library 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 2.1 of the License, or (at your option) any later version.
 *
 *  This program 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 this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
#ifndef delaunay_h
#define delaunay_h
 
#include "oofemenv.h"
 
#include <vector>
 
namespace oofem {
class FloatArray;
class Triangle;

class OOFEM_EXPORT Delaunay
{
public:
    Delaunay() : mTol(1.0e-12) { }
 
    bool colinear(const FloatArray &iP1, const FloatArray &iP2, const FloatArray &iP3) const;
    void printTriangles(std :: vector< Triangle > &triangles);
    bool isInsideCC(const FloatArray &iP, const FloatArray &iP1, const FloatArray &iP2, const FloatArray &iP3) const;
    void triangulate(const std :: vector< FloatArray > &iVertices, std :: vector< Triangle > &oTriangles) const;
 
private:
    const double mTol; 
};
} // end namespace oofem
#endif  // delaunay_h