Champ_Elem_PolyMAC_CDO.h

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#ifndef Champ_Elem_PolyMAC_CDO_included
#define Champ_Elem_PolyMAC_CDO_included
 
#include <Op_Diff_PolyMAC_CDO_base.h>
#include <Champ_Inc_P0_base.h>
#include <Operateur.h>
 
// Field corresponding to a scalar unknown (e.g. temperature or pressure)
// Degrees of freedom: value at elements + flux at faces
class Champ_Elem_PolyMAC_CDO: public Champ_Inc_P0_base
{
  Declare_instanciable(Champ_Elem_PolyMAC_CDO);
public:
  Champ_base& affecter_(const Champ_base& ch) override;
  int imprime(Sortie&, int) const override;
 
  int fixer_nb_valeurs_nodales(int n) override;
 
  /* functions reconstructing the field at faces more precisely */
  DoubleTab& valeur_aux_faces(DoubleTab& vals) const override;
  inline DoubleTab& trace(const Frontiere_dis_base& fr, DoubleTab& x, double t, int distant) const override;
 
};
 
inline DoubleTab& Champ_Elem_PolyMAC_CDO::trace(const Frontiere_dis_base& fr, DoubleTab& x, double t, int distant) const
{
  /* resize the destination array x if necessary */
  const DoubleTab& src = valeurs();
  const Front_VF& fvf = ref_cast(Front_VF, fr);
  const Domaine_VF& domaine = ref_cast(Domaine_VF, domaine_dis_base());
  const IntTab& f_e = domaine.face_voisins();
 
  DoubleTrav dst; //reconstruction of the field at faces (filled only on the relevant boundary)
  int i, n, e, f, N = src.nb_dim() > 1 ? src.dimension(1) : 1;
  int has_faces = polymac_flica5 ? false : src.dimension_tot(0) > domaine.nb_elem_tot();
  if (!x.dimension(0) && !x.get_md_vector()) x.resize(fvf.nb_faces(), N);
  dst.resize(domaine.nb_faces(), N);
  for (i = 0; i < fvf.nb_faces(); i++)
    for (n = 0, f = fvf.num_face(i); n < N; n++)
      {
        e = (f_e(f, 0) > -1) ? f_e(f, 0) : f_e(f, 1);
        dst(f, n) = src(has_faces ? domaine.nb_elem_tot() + f : e, n);
      }
 
  if (distant) fr.frontiere().trace_face_distant(dst, x);
  else fr.frontiere().trace_face_local(dst, x);
 
  return x;
}
 
#endif /* Champ_Elem_PolyMAC_CDO_included */