Discr_inst.cpp

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#include <Discr_inst.h>
 
 
#include <Motcle.h>
#include <Domaine_dis_base.h>
#include <Domaine.h>
 
Implemente_instanciable(Discr_inst, "VF_inst", Discretisation_base);
 
Entree& Discr_inst::readOn(Entree& s)
{
  return s;
}
 
Sortie& Discr_inst::printOn(Sortie& s) const
{
  return s;
}
 
void Discr_inst::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& nom, const Noms& unite, int nb_comp, int nb_pas_dt, double temps,
                                   OWN_PTR(Champ_Inc_base) &champ,
                                   const Nom& sous_type) const
{
  assert(0);
  throw;
}
/*! @brief Same as Discr_inst::discretiser_champ(.
 *
 * .. , Champ_Inc) but for a Champ_Fonc.
 *
 */
void Discr_inst::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, double temps,
                                   OWN_PTR(Champ_Fonc_base)& champ) const
{
  discretiser_champ_fonc_don(directive, z, nature, noms, unites, nb_comp, temps, champ);
}
 
/*! @brief Same as Discr_inst::discretiser_champ(.
 *
 * .. , Champ_Inc) but for a Champ_Don.
 *
 */
void Discr_inst::discretiser_champ(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, double temps, OWN_PTR(Champ_Don_base)& champ) const
{
  discretiser_champ_fonc_don(directive, z, nature, noms, unites, nb_comp, temps, champ);
}
 
/*! @brief Same as VEF_discretisation::discretiser_champ(.
 *
 * .. , Champ_Inc). Common processing for champ_fonc and champ_don.
 *  This method is private (passing an Objet_U is not clean
 *  from the outside).
 *
 */
void Discr_inst::discretiser_champ_fonc_don(const Motcle& directive, const Domaine_dis_base& z, Nature_du_champ nature, const Noms& noms, const Noms& unites, int nb_comp, double temps,
                                            Objet_U& champ) const
{
  // Two pointers to easily access the champ_don or the champ_fonc depending on the type of the champ object.
  OWN_PTR(Champ_Fonc_base) *champ_fonc = dynamic_cast<OWN_PTR(Champ_Fonc_base)*>(&champ);
  OWN_PTR(Champ_Don_base) *champ_don = dynamic_cast<OWN_PTR(Champ_Don_base)*>(&champ);
 
  Motcles motcles(2);
  motcles[0] = "champ_elem";  // Create a field at elements (P0 type)
  motcles[1] = "champ_sommets";   // Create a field at vertices
 
  Nom type;
  int rang = motcles.search(directive);
  //int default_nb_comp = 1;
  const Domaine& domaine = z.domaine();
  int nb_som_elem = domaine.nb_som_elem();
  int nb_ddl = -1;
  switch(rang)
    {
    case 0:
      type = "Champ_Fonc_P0_MED";
      nb_ddl = domaine.nb_elem();
      break;
    case 1:
      type = "Champ_Fonc_P1_MED";
      nb_ddl = domaine.nb_som();
      if (((dimension == 2) && (nb_som_elem == 4)) || ((dimension == 3) && (nb_som_elem == 8)))
        {
          type = "Champ_Fonc_Q1_MED";
        }
      break;
 
    default:
      assert(rang < 0);
 
      break;
    }
 
  if (directive == DEMANDE_DESCRIPTION)
    Cerr << "Discr_inst : " << motcles;
 
  // If the directive was not understood (or if it is a demande_description),
  // call the ancestor:
  if (rang < 0)
    {
      if (champ_fonc)
        Discretisation_base::discretiser_champ(directive, z, nature, noms, unites, nb_comp, temps, *champ_fonc);
      else
        Discretisation_base::discretiser_champ(directive, z, nature, noms, unites, nb_comp, temps, *champ_don);
 
      return;
    }
 
  if (champ_fonc)
    {
      OWN_PTR(Champ_Fonc_base) &ch = *champ_fonc;
      ch.typer(type);
      ch->associer_domaine_dis_base(z);
      ch->fixer_nb_comp(nb_comp);
      ch->fixer_nature_du_champ(nature);
      ch->fixer_nb_valeurs_nodales(nb_ddl);
    }
  else
    {
      assert(0);
      throw;
    }
 
}