catmullromcurve3.h

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/*
    Sheep - A Rigid Body Dynamics Engine
    Copyright (C) 2001-2004 Francois Beaune
    Contact: http://toxicengine.sourceforge.net/

    This file is part of Sheep.

    Sheep 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 2 of the License, or
    (at your option) any later version.

    Sheep 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 Sheep; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef SHEEP_MATH_CATMULLROMCURVE3_H
#define SHEEP_MATH_CATMULLROMCURVE3_H

#include "icurve3.h"
#include "point3.h"
#include "real.h"
#include "vector3.h"

#include <cassert>

namespace sheep {

    class CatmullRomCurve3 : public ICurve3 {
    public:
        CatmullRomCurve3(const Vector3 p[4]);

        //! t is in interval [0..1].
        virtual Point3 GetPointAt(Real t) const;
        virtual Vector3 GetTangentAt(Real t) const;

    private:
        Vector3 m_c[4];
        Vector3 m_c2[2];
    };

#include "catmullromcurve3.inl"

}

#endif  // !SHEEP_MATH_CATMULLROMCURVE3_H

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