Triangle.h

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/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation.
 * See the COPYING file for more information.
 *
 **********************************************************************/

#ifndef GEOS_GEOM_TRIANGLE_H
#define GEOS_GEOM_TRIANGLE_H

#include <geos/export.h>
#include <geos/geom/Coordinate.h>

#include <geos/inline.h>

namespace geos {
namespace geom { // geos::geom

class GEOS_DLL Triangle {
public:
    Coordinate p0, p1, p2;

    Triangle(const Coordinate& nP0, const Coordinate& nP1, const Coordinate& nP2)
        :
        p0(nP0),
        p1(nP1),
        p2(nP2)
    {}

    void inCentre(Coordinate& resultPoint);

    void circumcentre(Coordinate& resultPoint);
    void circumcentreDD(Coordinate& resultPoint);

    bool isIsoceles();

    static const Coordinate circumcentre(const Coordinate& p0, const Coordinate& p1, const Coordinate& p2);

private:

    double det(double m00, double m01, double m10, double m11) const;

};


} // namespace geos::geom
} // namespace geos

//#ifdef GEOS_INLINE
//# include "geos/geom/Triangle.inl"
//#endif

#endif // ndef GEOS_GEOM_TRIANGLE_H