shape_impl.h

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/* $Header: /var/cvs/mbdyn/mbdyn/mbdyn-1.0/mbdyn/base/shape_impl.h,v 1.8 2017/01/12 14:46:10 masarati Exp $ */
/*
 * MBDyn (C) is a multibody analysis code.
 * http://www.mbdyn.org
 *
 * Copyright (C) 1996-2017
 *
 * Pierangelo Masarati  <masarati@aero.polimi.it>
 * Paolo Mantegazza     <mantegazza@aero.polimi.it>
 *
 * Dipartimento di Ingegneria Aerospaziale - Politecnico di Milano
 * via La Masa, 34 - 20156 Milano, Italy
 * http://www.aero.polimi.it
 *
 * Changing this copyright notice is forbidden.
 *
 * This program 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 (version 2 of the License).
 *
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* Classe di forme pluridimensionali */

#ifndef SHAPE_IMPL_H
#define SHAPE_IMPL_H

#include "shape.h"

/* Esempi sono:
 * - la forma costante
 * - la forma lineare
 * - la forma parabolica
 */

class PiecewiseConstShape1D : public Shape1D {
protected:
        int nPoints;
        doublereal *pdX;
        doublereal *pdV;

public:
        PiecewiseConstShape1D(int n, doublereal *x, doublereal *v);

        ~PiecewiseConstShape1D(void);

        doublereal dGet(doublereal d, doublereal = 0.) const;

        std::ostream& Restart(std::ostream& out) const;
};

class LinearShape1D : public Shape1D {
protected:
        doublereal dShift;
        doublereal dSlope;

public:
        LinearShape1D(doublereal d0, doublereal d1);

        ~LinearShape1D(void);

        doublereal dGet(doublereal d, doublereal = 0.) const;

        std::ostream& Restart(std::ostream& out) const;
};

class PiecewiseLinearShape1D : public Shape1D {
protected:
        int nPoints;
        doublereal *pdX;
        doublereal *pdV;

public:
        PiecewiseLinearShape1D(int n, doublereal *x, doublereal *v);

        ~PiecewiseLinearShape1D(void);

        doublereal dGet(doublereal d, doublereal = 0.) const;

        std::ostream& Restart(std::ostream& out) const;
};

class ParabolicShape1D : public Shape1D {
protected:
        doublereal da0;
        doublereal da1;
        doublereal da2;

public:
        ParabolicShape1D(doublereal d0, doublereal d1, doublereal d2);

        ~ParabolicShape1D(void);

        doublereal dGet(doublereal d, doublereal = 0.) const;

        std::ostream& Restart(std::ostream& out) const;
};

/* Esempi sono:
 * - la forma costante
 * - la forma bilineare
 */

class ConstShape2D : public Shape2D {
protected:
        doublereal dConst;

public:
        ConstShape2D(doublereal d);

        ~ConstShape2D(void);

        doublereal dGet(doublereal /* d */ , doublereal = 0.) const;

        std::ostream& Restart(std::ostream& out) const;
};

class BilinearShape2D : public Shape2D {
protected:
        doublereal da0;
        doublereal da1x;
        doublereal da1y;
        doublereal da1xy;

public:
        BilinearShape2D(doublereal d0, doublereal d1x,
                doublereal d1y, doublereal d1xy);

        ~BilinearShape2D(void);

        doublereal dGet(doublereal dx, doublereal dy) const;

        std::ostream& Restart(std::ostream& out) const;
};

#endif // SHAPE_IMPL_H