Champ_front_calc_interne.cpp

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#include <Champ_front_calc_interne.h>
#include <Interprete.h>
#include <Equation_base.h>
#include <Probleme_base.h>
#include <Domaine.h>
#include <Domaine_VF.h>
#ifdef MEDCOUPLING_
#include <MEDCouplingMemArray.hxx>
#endif
 
Implemente_instanciable_sans_constructeur(Champ_front_calc_interne,"Champ_front_calc_interne",Champ_front_calc);
 
 
Champ_front_calc_interne::Champ_front_calc_interne()
{
  set_distant(0);
}
 
/*! @brief DOES NOTHING
 *
 * @param (Sortie& os) an output stream
 * @return (Sortie&) the modified output stream
 */
Sortie& Champ_front_calc_interne::printOn(Sortie& os) const
{
  return os;
}
 
/*! @brief Read the name of an unknown field from an input stream.
 *
 * Then creates the corresponding boundary field that will relate the two
 *     sides of the internal boundary.
 *     Format:
 *       Champ_front_calc_interne pb_name boundary_name field_name
 *
 * @param (Entree& is) an input stream
 * @return (Entree&) the modified input stream
 */
Entree& Champ_front_calc_interne::readOn(Entree& is)
{
#ifndef MEDCOUPLING_
  Cerr << "Champ_front_calc_interne needs MEDCoupling" << finl;
#endif
 
  Champ_front_calc::readOn(is);
  return is;
}
 
void Champ_front_calc_interne::completer()
{
#ifdef MEDCOUPLING_
  using namespace MEDCoupling;
 
  Champ_front_calc::completer();
 
  // Get barycenters of the concerned faces:
  const Front_VF& fvf = ref_cast(Front_VF, front_dis());
  const Domaine_VF& zvf = ref_cast(Domaine_VF, fvf.domaine_dis());
  const DoubleTab& xv = zvf.xv();
  int nbfaces = fvf.nb_faces();
 
  if (nbfaces % 2)
    {
      Cerr << "ERROR : Champ_front_calc_interne::completer() - number of faces of the internal boundary is not even!"<< finl;
      Process::exit(1);
    }
  face_map_.resize(nbfaces,RESIZE_OPTIONS::NOCOPY_NOINIT);
 
  if (nbfaces>0)
    {
      const int ndim = xv.dimension(1);
      MCAuto<DataArrayDouble> coo(DataArrayDouble::New());
      coo->alloc(nbfaces, ndim);
 
      for (int i = 0; i < nbfaces; i++)
        {
          int num_f = fvf.num_face(i);
 
          for (int d = 0; d < ndim; d++)
            coo->setIJSilent(i, d, xv(num_f, d));
        }
 
      DataArrayIdType *cP, *cIP;
      coo->findCommonTuples(Objet_U::precision_geom, 0, cP, cIP);
      int nb_faces_dup = (int)cP->getNumberOfTuples();
      if (nb_faces_dup == nbfaces)
        {
          // Duplicated faces -> singularity at the gap level
          MCAuto<DataArrayIdType> dsi(cIP->deltaShiftIndex());
 
          if (!dsi->isUniform(2))
            {
              Cerr << "ERROR : Problem on internal boundary. Some face(s) not duplicated." << finl;
              Process::exit(1);
            }
 
          const mcIdType *p(cP->begin());
          for (int i = 0; i < nbfaces / 2; i++, p += 2)
            {
              int pi1 = (int)(*p), pi2 = (int)(*(p+1));
              face_map_(pi1) = pi2;
              face_map_(pi2) = pi1;
            }
        }
      else
        {
          // Non-zero dimension gap -> we search for the closest
          // opposite face point
          const DoubleVect& face_surfaces = zvf.face_surfaces();
          MCAuto<DataArrayDouble> fnorm(DataArrayDouble::New());
          fnorm->alloc(nbfaces, 1);
          fnorm->fillWithZero();
 
          double* pfnorm = fnorm->getPointer();
 
          for (int i = 0; i < nbfaces; i++)
            {
              int num_f = fvf.num_face(i);
 
              for (int d = 0; d < ndim; d++)
                {
                  pfnorm[i]+=zvf.face_normales(num_f,d);
                  coo->setIJSilent(i, d, xv(num_f, d));
                }
              pfnorm[i]/=face_surfaces(num_f);
            }
 
          double eps = 1e-10;
 
          MCAuto<DataArrayIdType> Idpos = fnorm->findIdsInRange(1-eps,1+eps);
          MCAuto<DataArrayIdType> Idneg = fnorm->findIdsInRange(-1-eps,-1+eps);
 
          mcIdType n1 = Idpos->getNumberOfTuples();
          mcIdType n2 = Idneg->getNumberOfTuples();
 
          if ((n1!=n2) || (n1+n2)!=nbfaces)
            {
              Cerr << "ERROR : Problem on internal boundary. Cannot associate pairs of faces." << finl;
              Process::exit(1);
            }
          MCAuto<DataArrayDouble> coo_pos = coo->selectByTupleId(*Idpos);
          MCAuto<DataArrayDouble> coo_neg = coo->selectByTupleId(*Idneg);
 
          const mcIdType* pIdpos = Idpos->getConstPointer();
          const mcIdType* pIdneg = Idneg->getConstPointer();
 
          MCAuto<DataArrayIdType> idx = coo_pos->findClosestTupleId(coo_neg);
 
          const mcIdType* pidx = idx->getConstPointer();
 
          for (int i=0; i<nbfaces/2; i++)
            {
              int j2 = (int)pIdneg[i];
              int k = (int)pidx[i];
              int j1 = (int)pIdpos[k];
 
              face_map_(j1) = j2;
              face_map_(j2) = j1;
            }
        }
      cIP->decrRef();
      cP->decrRef();
    }
#endif
}
 
void Champ_front_calc_interne::mettre_a_jour(double temps)
{
  Champ_front_calc::mettre_a_jour(temps);
  // Swap values (implies a copy)
  DoubleTab& tab=valeurs_au_temps(temps);
  assert(tab.nb_dim() == 2 && tab.dimension(1) == 1);
  DoubleTab tmp(tab);
  for (int i = 0; i < tab.dimension(0); i++)
    tab(i,0) = tmp(face_map_(i),0);
}