Champ_front_softanalytique.cpp

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#include <Champ_front_softanalytique.h>
#include <Domaine.h>
#include <Domaine_VF.h>
 
Implemente_instanciable(Champ_front_softanalytique,"Champ_front_fonc_xyz",Ch_front_var_stationnaire);
// XD champ_front_fonc_xyz front_field_base champ_front_fonc_xyz NO_BRACE Boundary field which is not constant in space.
// XD attr val listchaine val REQ Values of field components (mathematical expressions).
 
/*! @brief Prints the field to the output stream.
 *
 * Prints the size of the field and the (constant) value on
 *     the boundary.
 *
 * @param (Sortie& os) an output stream
 * @return (Sortie&) the modified output stream
 */
Sortie& Champ_front_softanalytique::printOn(Sortie& os) const
{
 
  /*  int dim =   nb_comp();
      for (int i = 0;i<dim;i++)
      {
      os << fxyz[i]->getString();
      }
      return os;*/
  //  Cout << " Dans printOn !!!!!!!!!!!!!!!!!!!!!!" << finl;
  const DoubleTab& tab=valeurs();
  os << tab.size() << " ";
  for(int i=0; i<tab.size(); i++)
    os << tab(0,i);
  return os;
}
 
 
/*! @brief Reads the field from an input stream.
 *
 * Format:
 *       Champ_front_softanalytique nb_compo vrel_1 ... [vrel_i]
 *
 * @param (Entree& is) an input stream
 * @return (Entree& is) the modified input stream
 */
Entree& Champ_front_softanalytique::readOn(Entree& is)
{
  //Cout << "Dans  Champ_front_softanalytique.readOn !!!!!!!!!" << finl;
  int dim;
  dim=lire_dimension(is,que_suis_je());
  fixer_nb_comp(dim);
 
  fxyz.dimensionner(dim);
 
 
  //        Cout << "dim = " << dim << finl;
  for (int i = 0; i<dim; i++)
    {
      Nom tmp;
      //Cout << "i = " << i << finl;
      is >> tmp;
      //Cout << "fonc = " << tmp << finl;
      Cerr << "Reading and interpretation of the function " << tmp << finl;
 
      fxyz[i].setNbVar(3);
      fxyz[i].setString(tmp);
      fxyz[i].addVar("x");
      fxyz[i].addVar("y");
      fxyz[i].addVar("z");
      fxyz[i].parseString();
      Cerr << "Interpretation of the function " << tmp << " Ok" << finl;
      //        Cout << "end = " << tmp << finl;
    }
 
  return is;
}
 
int Champ_front_softanalytique::initialiser(double temps, const Champ_Inc_base& inco)
{
 
  if (!Ch_front_var_stationnaire::initialiser(temps,inco))
    return 0;
 
  int dim=nb_comp();
  double x,y,z;
  //      int nbsf=faces.nb_som_faces();
  int k;
  DoubleTab& tab=valeurs();
 
  const Domaine_VF& domaine_vf=ref_cast(Domaine_VF,frontiere_dis().domaine_dis());
  const DoubleTab& xv=domaine_vf.xv();
 
  const Front_VF& le_bord = ref_cast(Front_VF,frontiere_dis());
  int nb_faces_bord_tot=le_bord.nb_faces_tot();
  for (int ind_face=0; ind_face<nb_faces_bord_tot; ind_face++)
    {
      int face = le_bord.num_face(ind_face);
      x=y=z=0;
      x=xv(face,0);
      if(dimension>1)
        y=xv(face,1);
      if(dimension>2)
        z=xv(face,2);
 
      for( k=0; k<dim; k++)
        {
          fxyz[k].setVar("x",x);
          fxyz[k].setVar("y",y);
          fxyz[k].setVar("z",z);
          tab(ind_face,k)=fxyz[k].eval();
          //Cout << " x y z " << x << " " << y << " " << z << " " << tab(i,k) << finl;
        }
    }
 
  tab.echange_espace_virtuel();
  return 1;
}
 
void Champ_front_softanalytique::valeur_a(DoubleVect& position, DoubleVect& valeur)
{
  assert(position.size() == Objet_U::dimension);
  double x = position[0];
  double y = position[1];
  double z = 0.;
  if (Objet_U::dimension == 3) z = position[2];
 
  int dim = nb_comp();
  valeur.resize(dim);
 
  for (int k=0; k<dim; k++)
    {
      fxyz[k].setVar("x",x);
      fxyz[k].setVar("y",y);
      fxyz[k].setVar("z",z);
      valeur[k] = fxyz[k].eval();
    }
  return;
}