Operateur_Grad_base.cpp

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#include <Operateur_Grad_base.h>
#include <TRUSTTrav.h>
 
Implemente_base(Operateur_Grad_base,"Operateur_Grad_base",Operateur_base);
 
 
/*! @brief DOES NOTHING To be overridden in derived classes
 *
 * @param (Sortie& os) an output stream
 * @return (Sortie&) the output stream
 */
Sortie& Operateur_Grad_base::printOn(Sortie& os) const
{
  return os;
}
 
 
/*! @brief DOES NOTHING To be overridden in derived classes
 *
 * @param (Entree& is) an input stream
 * @return (Entree&) the input stream
 */
Entree& Operateur_Grad_base::readOn(Entree& is)
{
  return is;
}
 
void Operateur_Grad_base::dimensionner(Matrice_Morse& mat) const
{
  /* try dimensionner_blocs(), but for pressure! */
  if (has_interface_blocs()) dimensionner_blocs({{ "pression", &mat }});
  else Process::exit(que_suis_je() + " : dimensionner() not coded!");
}
 
DoubleTab& Operateur_Grad_base::ajouter(const DoubleTab& inco, DoubleTab& secmem) const
{
  if (has_interface_blocs())
    secmem *= -1, ajouter_blocs({}, secmem, {{ "pression", inco }}), secmem *= -1; /* to get the correct sign */
  else Process::exit(que_suis_je() + " : ajouter() not coded!");
  return secmem;
}
 
void Operateur_Grad_base::contribuer_a_avec(const DoubleTab& inco, Matrice_Morse& matrice) const
{
  if (has_interface_blocs())
    {
      DoubleTrav secmem(equation().inconnue().valeurs()); //will be discarded
      matrice.get_set_coeff() *= -1, ajouter_blocs({{ "pression", &matrice }}, secmem), matrice.get_set_coeff() *= -1; /* to get the correct sign */
    }
  else Process::exit(que_suis_je() + " : contribuer_a_avec() not coded!");
}
 
/*! @brief Computation without boundary conditions ?
 *
 */
DoubleVect& Operateur_Grad_base::multvect(const DoubleTab& x, DoubleTab& b) const
{
  //
  //Cerr << que_suis_je()<<"::multvect is not overridden!!" << finl;
  // copy of X with zeros in the vector
  //  (we recover a result taking into account only the boundary conditions)
#if 0
  // Attempt at more efficient coding: does not work!
  // discrepancy on SGE_3D_VEF
  DoubleTrav x0(x); // copy of the structure, initialized to zero
  calculer(x0, b);
  operator_negate(b);
  ajouter(x, b);
#endif
  DoubleTrav x0(x);
  DoubleTrav b0(b);
 
  calculer(x0, b0);
  calculer(x,b);
  b-=b0;
 
  // We have subtracted from the result the contribution of the boundary conditions.
  return b;
}