An Object Finite Element Library

Line2.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 'Line2' for shape functions of 2-Node Line Element

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


#ifndef __LINE2_H
#define __LINE2_H

#include "FEShape.h"

namespace OFELI {

#ifndef DOXYGEN_SHOULD_SKIP_THIS
struct ErrorInLine2 {
   void Message(const char *file, size_t line, int code, int p1) const;
};
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

class Line2 : public FEShape
{

public :

    Line2();

    Line2(const Element *el);

    Line2(const Side *side);

    ~Line2()
    {
#ifdef _OFELI_DEBUG
       std::clog << "An instance of class Line2 is destructed.\n";
       std::clog << "File : " << __FILE__ << ", Line : " << __LINE__ << endl;
#endif
    }

    double check() const;

    double getLength() const { return _length; }

    Point<double> getNormal() const;

    Point<double> getTangent() const;

    double Sh(size_t i, double s) const;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
    double Sh(size_t i, Point<double> s) const { return Sh(i,s.x); }
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

    double DSh(size_t i) const;

    Point<double> getRefCoord(const Point<double> &x);

    bool isIn(const Point<double> &x);

    double getInterpolate(const Point<double> &x, const LocalVect<double,2> &v);

 private :
   double        _length;
   const Element *_el;
   const Side    *_sd;
   ErrorInLine2  _e;
};

} /* namespace OFELI */

#endif

Copyright © 1998-2007 Rachid Touzani