Champ_Uniforme_Morceaux.cpp

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#include <Champ_Uniforme_Morceaux.h>
 
Implemente_instanciable(Champ_Uniforme_Morceaux,"Champ_Uniforme_Morceaux",Champ_Don_base);
// XD champ_uniforme_morceaux champ_don_base champ_uniforme_morceaux NO_BRACE Field which is partly constant in space
// XD_CONT and stationary.
// XD attr nom_dom ref_domaine nom_dom REQ Name of the domain to which the sub-areas belong.
// XD attr nb_comp entier nb_comp REQ Number of field components.
// XD attr data bloc_lecture data REQ { Defaut val_def sous_zone_1 val_1 ... sous_zone_i val_i } By default, the value
// XD_CONT val_def is assigned to the field. It takes the sous_zone_i identifier Sous_Zone (sub_area) type object value,
// XD_CONT val_i. Sous_Zone (sub_area) type objects must have been previously defined if the operator wishes to use a
// XD_CONT Champ_Uniforme_Morceaux(partly_uniform_field) type object.
 
 
Sortie& Champ_Uniforme_Morceaux::printOn(Sortie& os) const { return os << valeurs(); }
 
/*! @brief Reads the values of the piecewise uniform field from an input stream.
 *
 * Reads the domain name (nom_domaine), the number of field components (nb_comp), the default value
 *     of the field and the values on the subdomains.
 *     Format:
 *      Champ_Uniforme_Morceaux nom_domaine nb_comp
 *      { Defaut val_def sous_domaine_1 val_1 ... sous_domaine_i val_i }
 *
 */
Entree& Champ_Uniforme_Morceaux::readOn(Entree& is)
{
  int dim;
  Motcle motlu;
  Nom nom;
  int k, poly;
  is >> nom;
  interprete_get_domaine(nom);
  Domaine& le_domaine=mon_domaine.valeur();
  const IntTab& les_elems=le_domaine.les_elems();
  const int nb_som_elem = le_domaine.nb_som_elem();
  double x=0,y=0,z=0;
 
  dim=lire_dimension(is,que_suis_je());
  fixer_nb_comp(dim);
  valeurs_.resize(0, dim);
  le_domaine.creer_tableau_elements(valeurs_);
  is >> nom;
  motlu=nom;
  if(motlu != Motcle("{") )
    {
      Cerr << "Error while reading a " << que_suis_je() << finl;
      Cerr << "We expected a { instead of " << nom << finl;
      exit();
    }
  is >> nom;
  motlu=nom;
  if(motlu != Motcle("defaut") )
    {
      Cerr << "Error while reading a " << que_suis_je() << finl;
      Cerr << "We expected defaut instead of " << nom << finl;
      exit();
    }
 
  VECT(Parser_U) fxyz(dim);
  for( k=0; k< dim; k++)
    {
      Nom tmp;
      is >> tmp;
      fxyz[k].setNbVar(3);
      fxyz[k].setString(tmp);
      fxyz[k].addVar("x");
      fxyz[k].addVar("y");
      fxyz[k].addVar("z");
      fxyz[k].parseString();
    }
 
  for( poly=0; poly<le_domaine.nb_elem(); poly++)
    {
      x = y = z = 0;
      int nsom = 0, e=-1;
      for (int isom = 0; isom<nb_som_elem; isom++)
        if ((e = les_elems(poly,isom)) >= 0)
          {
            x += le_domaine.coord(e,0);
            y += le_domaine.coord(e,1);
            if (dimension == 3) z += le_domaine.coord(e,2);
            nsom++;
          }
      x = x/nsom;
      y = y/nsom;
      z = z/nsom;
      for( k=0; k< dim; k++)
        {
          fxyz[k].setVar("x",x);
          fxyz[k].setVar("y",y);
          fxyz[k].setVar("z",z);
          valeurs_(poly,k)=fxyz[k].eval();
        }
    }
 
  is >> nom;
  motlu=nom;
  while (motlu != Motcle("}") )
    {
      OBS_PTR(Sous_Domaine) refssz=les_sous_domaines.add(le_domaine.ss_domaine(nom));
      Sous_Domaine& ssz = refssz.valeur();
      for( k=0; k< dim; k++)
        {
          Nom tmp;
          is >> tmp;
          fxyz[k].setString(tmp);
          fxyz[k].parseString();
        }
      for( poly=0; poly<ssz.nb_elem_tot(); poly++)
        {
          x = y = z = 0;
          int nsom = 0, e=-1;
          for (int isom = 0; isom<nb_som_elem; isom++)
            if ((e = les_elems(ssz(poly),isom)) >= 0)
              {
                x += le_domaine.coord(e,0);
                y += le_domaine.coord(e,1);
                if (dimension == 3) z += le_domaine.coord(e,2);
                nsom++;
              }
          x = x/nsom;
          y = y/nsom;
          z = z/nsom;
          for( k=0; k< dim; k++)
            {
              fxyz[k].setVar("x",x);
              fxyz[k].setVar("y",y);
              fxyz[k].setVar("z",z);
              valeurs_(ssz(poly),k)=fxyz[k].eval();
            }
        }
      is >> nom;
      motlu=nom;
    }
  valeurs().echange_espace_virtuel();
  return is;
}
 
Champ_base& Champ_Uniforme_Morceaux::affecter_(const Champ_base& ch)
{
  if (sub_type(Champ_Uniforme_Morceaux, ch))
    {
      const Champ_Uniforme_Morceaux& chum = ref_cast(Champ_Uniforme_Morceaux, ch);
      les_sous_domaines = chum.sous_domaines();
      mon_domaine = chum.domaine();
      valeurs_ = chum.valeurs();
    }
  else if (sub_type(Champ_Uniforme, ch))
    {
      const Champ_Uniforme& chu = ref_cast(Champ_Uniforme, ch);
      const int nb_poly = valeurs_.dimension(0), dim = valeurs_.dimension(1);
      const DoubleTab& ch_val = chu.valeurs();
      for (int k = 0; k < dim; k++)
        for (int poly = 0; poly < nb_poly; poly++) valeurs_(poly, k) = ch_val(0, k);
    }
  else
    {
      Cerr << "It is not known to affect a " << ch.que_suis_je() << " at a " << que_suis_je() << finl;
      Process::exit();
    }
  return *this;
}