ansatz_functions.h

/* Copyright (C) 2004-2009 MBSim Development Team
 * This library is free software; you can redistribute it and/or 
 * modify it under the terms of the GNU Lesser General Public 
 * License as published by the Free Software Foundation; either 
 * version 2.1 of the License, or (at your option) any later version. 
 *  
 * This library 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 
 * Lesser General Public License for more details. 
 *  
 * You should have received a copy of the GNU Lesser General Public 
 * License along with this library; if not, write to the Free Software 
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
 *
 * Contact: martin.o.foerg@googlemail.com
 */
 
#ifndef  _ANSATZ_FUNCTIONS_H_
#define  _ANSATZ_FUNCTIONS_H_
 
#include "fmatvec/fmatvec.h"
 
class ansatz_function {
  public:
    fmatvec::SymMat MatIntWWT();
 
    fmatvec::SymMat MatIntWSWST();
 
    fmatvec::Vec VecW0();
 
    fmatvec::Vec VecWL();
 
    fmatvec::Vec VecIntW();
 
    fmatvec::Vec VecW(double xi);
 
    fmatvec::Vec VecWS(double xi);
 
    int order();
 
    int dim();
 
    ansatz_function(int n, double l);
 
    virtual ~ansatz_function();
 
  protected:
    virtual double Intwiwj(int i, int j)=0;
 
    virtual double Intwsiwsj(int i, int j)=0;
 
    virtual double wi0(int i)=0;
 
    virtual double wiL(int i)=0;
 
    virtual double Intwi(int i)=0;
 
    virtual double wi(int i, double xi)=0;
 
    virtual double wis(int i, double xi)=0;
 
    int Ord;
 
    int Dim;
 
    double L;
};
 
 
class ansatz_function_harmonic : public ansatz_function {
  public:
    ansatz_function_harmonic(int n, double l);
 
  protected:
    double Intwiwj(int i, int j) override;
 
    double Intwsiwsj(int i, int j) override;
 
    double wi0(int i) override;
 
    double wiL(int i) override;
 
    double Intwi(int i) override;
 
    double wi(int i, double xi) override;
 
    double wis(int i, double xi) override;
};
 
 
class ansatz_function_polynom : public ansatz_function {
  public:
    ansatz_function_polynom(int n, double l);
 
  protected:
    double Intwiwj(int i, int j) override;
 
    double Intwsiwsj(int i, int j) override;
 
    double wi0(int i) override;
 
    double wiL(int i) override;
 
    double Intwi(int i) override;
 
    double wi(int i, double xi) override;
 
    double wis(int i, double xi) override;
};
 
 
 
class ansatz_function_BSplineOrd3 : public ansatz_function {
  public:
    ansatz_function_BSplineOrd3(int n, double l);
 
  protected:
    double Intwiwj(int i, int j) override;
 
    double Intwsiwsj(int i, int j) override;
 
    double wi0(int i) override;
 
    double wiL(int i) override;
 
    double Intwi(int i) override;
 
    double wi(int i, double xi) override;
 
    double wis(int i, double xi) override;
};
 
 
class ansatz_function_BSplineOrd4 : public ansatz_function {
  public:
    ansatz_function_BSplineOrd4(int n, double l);
 
  protected:
    double Intwiwj(int i, int j) override;
 
    double Intwsiwsj(int i, int j) override;
 
    double wi0(int i) override;
 
    double wiL(int i) override;
 
    double Intwi(int i) override;
 
    double wi(int i, double xi) override;
 
    double wis(int i, double xi) override;
};
 
#endif   /* ----- #ifndef _ANSATZ_FUNCTIONS_H_  ----- */