Champ_front_Parametrique.cpp

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#include <Champ_front_Parametrique.h>
#include <Param.h>
#include <Probleme_base.h>
#include <EFichier.h>
#include <EChaine.h>
 
 
Implemente_instanciable(Champ_front_Parametrique,"Champ_front_Parametrique",Champ_front_base);
// XD Champ_front_Parametrique front_field_base Champ_front_Parametrique BRACE Parametric boundary field
 
Sortie& Champ_front_Parametrique::printOn(Sortie& os) const
{
  return Champ_front_base::printOn(os);
}
 
Entree& Champ_front_Parametrique::readOn(Entree& is)
{
  Nom fichier;
  Param param(que_suis_je());
  param.ajouter("fichier", &fichier, Param::REQUIRED); // XD_ADD_P chaine
  // XD_CONT Filename where boundary fields are read
  param.lire_avec_accolades_depuis(is);
  // Reading of all lines of the parametric file:
  EFichier fic(fichier);
  Motcle motlu;
  fic >> motlu;
  if (motlu!="{") Process::exit("Waiting { !");
  while (motlu!="}")
    {
      OWN_PTR(Champ_front_base) ch;
      fic >> ch;
      champs_.add(ch);
      //Cerr << "[Parameter] Reading: " << ch->que_suis_je() << finl; //" " << ch.valeur() << finl;
      fic >> motlu;
    }
  // We set the first parameter:
  Sortie_Fichier_base::set_root(newCompute());
  return is;
}
 
std::string Champ_front_Parametrique::newCompute() const
{
  if (champs_.size()==index_)
    return "";
  else
    {
      Nom previous_field("");
      if (index_)
        {
          previous_field = " from ";
          previous_field += champ().que_suis_je();
        }
      index_++;
      Nom next_field = champ().que_suis_je();
      Cerr << "[Parameter] Updating boundary field" << previous_field << " to " << next_field << finl;
      return Champ_Parametrique::dirnameCompute(index_);
    }
}
 
void Champ_front_Parametrique::calculer_derivee_en_temps(double t1, double t2)
{
  if (t1<last_t2_ && index_>1)
    {
      // To ensure continuity with the previous field:
      if (std::abs(t2-t1) < DMINFLOAT)
        {
          Gpoint_ = 0;
        }
      else
        {
          const DoubleTab& v1 = champs_[index_-2]->valeurs_au_temps(last_t2_);
          const DoubleTab& v2 = valeurs_au_temps(t2);
          if (v1.dimension(0) == 1)
            {
              // Unsteady uniform field
              int dim = v1.dimension(1);
              if (Gpoint_.size() != dim) Gpoint_.resize(dim);
              for (int i = 0; i < dim; i++)
                Gpoint_(i) = (v2(0, i) - v1(0, i)) / (t2 - t1);
            }
          else
            {
              // Unsteady variable fields
              Gpoint_ = v1;
              Gpoint_ *= -1;
              Gpoint_ += v2;
              Gpoint_ /= (t2 - t1);
            }
        }
    }
  else
    {
      champ().calculer_derivee_en_temps(t1, t2);
      Gpoint_ = champ().derivee_en_temps();
    }
  last_t2_ = t2;
}
 
const DoubleTab& Champ_front_Parametrique::derivee_en_temps() const
{
  return Gpoint_;
}