Lire_Ideas.cpp

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#include <Lire_Ideas.h>
#include <Domaine.h>
#include <EFichier.h>
#include <Scatter.h>
 
Implemente_instanciable(Lire_Ideas,"Lire_Ideas",Interprete_geometrique_base);
// XD lire_ideas interprete lire_ideas INHERITS_BRACE Read a geom in a unv file. 3D tetra mesh elements only may be read
// XD_CONT by TRUST.
// XD attr nom_dom ref_domaine nom_dom REQ Name of domain.
// XD attr file chaine file REQ Name of file.
 
Sortie& Lire_Ideas::printOn(Sortie& s ) const
{
  return s << que_suis_je() << finl;
}
 
Entree& Lire_Ideas::readOn(Entree& is )
{
  return is;
}
 
Entree& Lire_Ideas::interpreter_(Entree& is)
{
  Nom nom_fic;
  associer_domaine(is);
  is >> nom_fic;
  Domaine& dom=domaine();
  //
  int NDIM=dimension;
  int NNOEUDS=0;
  int NELEM=0;
  int NTETRA=0;
  int NFACB=0;
  int NSEG=0;
  int NGROUPE=0;
  int CAS=0;
  //
  Cerr << "First pass to determine the sizes of arrays" << finl;
  //
  char  nom_fic2[81];
  for (int ii=0; ii<80; ii++)
    nom_fic2[ii]='\0';
  strcpy(nom_fic2,nom_fic);
  F77NAME(LIREPREM) (nom_fic2,
                     &NDIM,
                     &NNOEUDS,
                     &NELEM,
                     &NTETRA,
                     &NFACB,
                     &NSEG,
                     &NGROUPE,
                     &CAS);
  //
  Cerr << "Number of nodes             : " << NNOEUDS << finl;
  Cerr << "Number of elements          : " << NELEM << finl;
  Cerr << "Number of tetrahedra        : " << NTETRA << finl;
  Cerr << "Number of boundary faces    : " << NFACB << finl;
  Cerr << "Number of boundary segments : " << NSEG << finl;
  Cerr << "Number of groups            : " << NGROUPE << finl;
  //
  ArrOfInt NGELEM(NGROUPE);
  ArrOfInt WORK(std::max(NTETRA,NFACB*4));
  //
  //Switching F77 to C++: indices between the two languages are reversed
  // (different storage convention)
  //
  IntTab TETRA(4,NTETRA);
  IntTab FACB(3,NFACB);
  IntTab GROUP(NFACB,NGROUPE);
  //
  ArrOfDouble X(NNOEUDS);
  ArrOfDouble Y(NNOEUDS);
  ArrOfDouble Z(NNOEUDS);
  Cerr << "call of LIREIDEAS " << finl;
  //
  F77NAME(LIREIDEAS)(nom_fic2,
                     &NDIM,
                     X.addr(),
                     Y.addr(),
                     Z.addr(),
                     TETRA.addr(),
                     FACB.addr(),
                     GROUP.addr(),
                     &NNOEUDS,
                     &NELEM,
                     &NTETRA,
                     &NFACB,
                     &NGROUPE,
                     NGELEM.addr(),
                     WORK.addr(),
                     &CAS);
  //
  Cerr << " Reading completed " << finl;
  //
  DoubleTab& coord=dom.les_sommets();
  dom.type_elem().typer("Tetraedre");
  dom.type_elem()->associer_domaine(dom);
 
  //
  // First, transfer the coordinates
  //
  coord.resize(NNOEUDS, dimension);
  {
    for(int i=0; i<NNOEUDS; i++)
      {
        coord(i,0) = (X[i]);
        coord(i,1) = (Y[i]);
        coord(i,2) = (Z[i]);
      }
  }
  //
  Cerr << " Completing the assignment of coordinates of nodes" << finl;
  //
  // Then, process the elements (element -> node connectivity)
  //
  IntTab& les_elems=dom.les_elems();
  les_elems.resize(NTETRA, dimension+1);
  for(int i=0; i<NTETRA; i++)
    {
      for(int j=0; j<dimension+1; j++)
        {
          //
          // NOTE: Index inversion between Fortran and C++ arrays
          //
          les_elems(i,j)= TETRA(j,i)-1 ;
        }
    }
  //
  Cerr << " Completing the assignment of elements" << finl;
  //
  //
  // Now process the boundary faces (array FACB, of dimension (NFACB,3))
  // located in the different boundary face groups. Each
  // group corresponds to a well-defined boundary of the domain (wall, inlet, outlet,
  // symmetry, ...) and each group bears the name of that boundary type (GRNAME)
  //
  // Summary:
  //    GRNAME (NGROUPE)         : Names of the different boundaries
  //    GROUP  (NNOEUDS,NGROUPE) : Group of boundary faces (face number)
  //    NGELEM (NGROUPE)         : Number of boundary faces for group NGROUPE
  //    FACB   (NFACB,3)         : Connectivity of boundary faces (the 3 nodes of the triangle)
  //
  //
  //
  // Open the file containing the group names
  //
  Nom nom1="nom.groupe";
  EFichier fic(nom1);
  fic.set_check_types(1); // Replaces UFichier
  Cerr << "Reading of the file : " << nom1 << finl;
  // Define the boundaries as boundary faces of the domain
  // Domaine --> les_bords
  //
  Bords& les_bords=dom.faces_bord();
  //
  // Associate the boundaries with the domain (reference to dom)
  // les_bords --> Domaine
  //
  les_bords.associer_domaine(dom);
  //
  Nom nom_bord="Bord";
  //
  // Assign the boundaries:
  //
  for(int k=0; k<NGROUPE; k++)
    {
      fic >> nom_bord;
      Bord& nouveau=les_bords.add(Bord());
      //
      nouveau.nommer(nom_bord);
      nouveau.faces().typer(Type_Face::triangle_3D);
      //
      nouveau.faces().dimensionner(NGELEM[k]);
      //
      int num;
      for (int j=0; j<NGELEM[k]; j++)
        {
          //
          // NOTE: Index inversion between Fortran and C++ arrays
          //
          //        GF renumbering in lire_ideas.f now...
          //
          //num=GROUP(j,k)-1-NTETRA;
          num=GROUP(j,k)-1;
          nouveau.faces().sommet(j,0)= FACB(0,num)-1;
          nouveau.faces().sommet(j,1)= FACB(1,num)-1;
          nouveau.faces().sommet(j,2)= FACB(2,num)-1;
        }
      nouveau.associer_domaine(dom);
    }
  //
  Cerr << " Completing the assignment of the boundary faces" << finl;
  //
  Cerr << " Exit of Lire_Ideas " << finl;
  //
  dom.fixer_premieres_faces_frontiere();
 
  Scatter::init_sequential_domain(dom);
  return is;
}