An Object Finite Element Library

Hexa8.h

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/*==============================================================================

                                    O  F  E  L  I

                           Object  Finite  Element  Library

  ==============================================================================

   Copyright (C) 1998 - 2008 Rachid Touzani

   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

  ==============================================================================

      Definition of class Hexa8 for shape functions of 8-Node hexahedral
                            element in three dimensions

  ==============================================================================*/


#ifndef __HEXA8_H
#define __HEXA8_H

#include "FEShape.h"

namespace OFELI {

#ifndef DOXYGEN_SHOULD_SKIP_THIS
struct ErrorInHexa8 { void Message(const char *file, size_t line, int code, int p1) const; };
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

class Hexa8 : public FEShape
{

 public :

    Hexa8();

    Hexa8(const Element *el);

    ~Hexa8()
    {
#ifdef _OFELI_DEBUG
       std::clog << "An instance of class Hexa8 is destructed.\n";
       std::clog << "File : " << __FILE__ << ", Line : " << __LINE__ << endl;
#endif
    }

    void setLocal(const Point<double> &s);

    Point<double> DSh(size_t i) { return _dsh[i-1]; }

    void atGauss1(LocalVect<Point<double>,8> &dsh, double &w);

    void atGauss2(LocalMatrix<Point<double>,8,8> &dsh, LocalVect<double,8> &w);

    double check() const;

    double getMaxEdgeLength() const;

    double getMinEdgeLength() const;

 private :

   const Element *_el;
   ErrorInHexa8  _e;
};

} /* namespace OFELI */

#endif

Copyright © 1998-2007 Rachid Touzani