Champ_Fonc_Tabule_P0_VDF.cpp

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#include <Champ_Fonc_Tabule_P0_VDF.h>
#include <Domaine_VF.h>
#include <Table.h>
 
Implemente_instanciable(Champ_Fonc_Tabule_P0_VDF, "Champ_Fonc_Tabule_P0_VDF", Champ_Fonc_P0_VDF);
 
Sortie& Champ_Fonc_Tabule_P0_VDF::printOn(Sortie& s) const { return s << que_suis_je() << " " << le_nom(); }
 
Entree& Champ_Fonc_Tabule_P0_VDF::readOn(Entree& s) { return s; }
 
void Champ_Fonc_Tabule_P0_VDF::associer_param(const VECT(OBS_PTR(Champ_base)) &les_champs, const Table& une_table)
{
  les_ch_param = les_champs;
  la_table = une_table;
}
 
void Champ_Fonc_Tabule_P0_VDF::mettre_a_jour(double t)
{
  const Domaine_VF& domaine_VF = le_dom_VF.valeur();
  const Table& table = la_table.valeur();
  DoubleTab& mes_valeurs = valeurs();
  const int nb_elem = domaine_VF.nb_elem(), nb_elem_tot = domaine_VF.nb_elem_tot(), nb_param = les_ch_param.size();
  DoubleTabs val_params_aux_elems;
  for (int i = 0; i < nb_param; i++)
    {
      assert(les_ch_param[i]->valeurs().dimension(1) == 1 || les_ch_param[i]->valeurs().dimension(1) == mes_valeurs.dimension(1));
      DoubleTab vp(nb_elem_tot, les_ch_param[i]->valeurs().dimension(1));
      val_params_aux_elems.add(vp);
    }
  const DoubleTab& centres_de_gravites = domaine_VF.xp();
  IntVect les_polys(nb_elem_tot);
  for (int elem = 0; elem < nb_elem_tot; elem++)
    les_polys(elem) = elem;
 
  // Estimate the field parameter on cells:
  for (int i = 0; i < nb_param; i++)
    les_ch_param[i]->valeur_aux_elems(centres_de_gravites, les_polys, val_params_aux_elems[i]);
  // Compute the field according to the parameter field
  if (table.isfonction() != 2)
    {
      const int nbcomp = mes_valeurs.dimension(1);
      std::vector<double> vals;
      vals.reserve(nb_param); // Pre-allocate space once
      for (int num_elem = 0; num_elem < nb_elem; num_elem++)
        for (int ncomp = 0; ncomp < nbcomp; ncomp++)
          {
            vals.clear();
            for (int n = 0; n < nb_param; n++)
              vals.push_back(val_params_aux_elems[n](num_elem, les_ch_param[n]->valeurs().dimension(1) == 1 ? 0 : ncomp));
            mes_valeurs(num_elem, ncomp) = table.val(vals, ncomp);
          }
    }
  else
    {
      table.valeurs(val_params_aux_elems[0], centres_de_gravites, t, mes_valeurs);
    }
 
  Champ_Fonc_base::mettre_a_jour(t);
}
 
int Champ_Fonc_Tabule_P0_VDF::initialiser(const double un_temps)
{
  Champ_Fonc_Tabule_P0_VDF::mettre_a_jour(un_temps);
  return 1;
}