VerifierCoin.cpp

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#include <LecFicDiffuse.h>
#include <VerifierCoin.h>
#include <Scatter.h>
#include <Domaine.h>
#include <Param.h>
#include <time.h>
 
Implemente_instanciable(VerifierCoin,"VerifierCoin",Interprete_geometrique_base);
 
/*! @brief Simple call to: Interprete::printOn(Sortie&) */
Sortie& VerifierCoin::printOn(Sortie& os) const { return Interprete::printOn(os); }
 
/*! @brief Simple call to: Interprete::readOn(Entree&) */
Entree& VerifierCoin::readOn(Entree& is) { return Interprete::readOn(is); }
 
// Split element `elem` into (dimension+1) sub-elements by inserting a centroid node.
// The centroid coordinates are taken from xp(elem,:).
// New elements are appended to les_elems; the sub-domains index is updated accordingly.
void VerifierCoin::cut_elem(int elem, const DoubleTab& xp)
{
  Domaine& dom=domaine();
  DoubleTab& sommets = dom.les_sommets();
  int nouveau_sommet = sommets.dimension(0);
  IntTab& les_elems=dom.les_elems();
  sommets.resize(nouveau_sommet+1, dimension);
  for (int j = 0; j < dimension; j++)
    sommets(nouveau_sommet,j) = xp(elem,j);
 
  int oldsz = les_elems.dimension(0);
  les_elems.resize(oldsz+dimension, dimension+1);
  Cerr << "-> The element number " << elem << " is cut in " << dimension+1 << " elements." << finl;
 
  int i0 = les_elems(elem,0);
  int i1 = les_elems(elem,1);
  int i2 = les_elems(elem,2);
 
  les_elems(elem,0) = i0;
  les_elems(elem,1) = i1;
  les_elems(elem,2) = nouveau_sommet;
 
  les_elems(oldsz,0) = i1;
  les_elems(oldsz,1) = i2;
  les_elems(oldsz,2) = nouveau_sommet;
 
  les_elems(oldsz+1,0) = i0;
  les_elems(oldsz+1,1) = i2;
  les_elems(oldsz+1,2) = nouveau_sommet;
 
  if (dimension == 3)
    {
      int i3 = les_elems(elem,3);
 
      les_elems(elem,3)   = i3;
      les_elems(oldsz,3)  = i3;
      les_elems(oldsz+1,3)= i3;
 
      les_elems(oldsz+2,0) = i0;
      les_elems(oldsz+2,1) = i1;
      les_elems(oldsz+2,2) = i2;
      les_elems(oldsz+2,3) = nouveau_sommet;
    }
 
  mettre_a_jour_sous_domaine(dom, elem, oldsz, dimension);
}
 
/*! @brief Main function of the interpreter: solve a problem.
 *
 *     Dynamically finds the type of problem to solve,
 *     solves it, and performs post-processing.
 *
 * @param is Input stream.
 * @return Modified input stream.
 * @throws unknown problem type
 */
Entree& VerifierCoin::interpreter_(Entree& is)
{
// XD verifiercoin interprete verifiercoin INHERITS_BRACE This keyword subdivides inconsistent 2D/3D cells used with
// XD_CONT VEFPreP1B discretization. Must be used before the mesh is discretized. NL1 The Read_file option can be used
// XD_CONT only if the file.decoupage_som was previously created by TRUST. This option, only in 2D, reverses the common
// XD_CONT face at two cells (at least one is inconsistent), through the nodes opposed. In 3D, the option has no effect.
// XD attr domain_name ref_domaine dom REQ Name of the domaine
// XD attr bloc verifiercoin_bloc bloc REQ not_set
// XD verifiercoin_bloc objet_lecture nul BRACE not_set
// XD attr Read_file|Lire_fichier chaine filename OPT name of the *.decoupage_som file
 
 
  associer_domaine(is);
  Domaine& dom=domaine();
  if (dom.type_elem()->que_suis_je() != "Triangle" && dom.type_elem()->que_suis_je() != "Tetraedre")
    {
      Cerr << "Error for "<<que_suis_je() <<" interpreter : it can be applied only for triangular or tetraedral meshing." << finl;
      exit();
    }
 
  Nom decoup_som("");
  Param param(que_suis_je());
  param.ajouter("Lire_fichier|Read_file",&decoup_som);
  bool expert_only_obsolete = false;
  param.ajouter_flag("expert_only",&expert_only_obsolete);
  param.lire_avec_accolades_depuis(is);
  if (expert_only_obsolete) Process::exit("Error: expert_only is not supported anymore for VerifierCoin");
  int lecture_decoupage_som=(decoup_som!=""?1:0);
 
  if (Process::is_parallel())
    {
      Cerr << que_suis_je() << " interpreter can be used only for sequential calculation." << finl;
      Cerr << "For parallel calculation, please use "<< que_suis_je() <<" interpreter" << finl;
      Cerr << "during the domain partitioning step." << finl;
      exit();
    }
  Scatter::uninit_sequential_domain(dom);
  DoubleTab xp;
  dom.calculer_centres_gravite(xp);
  DoubleTab& sommets = dom.les_sommets();
  int nbsom=sommets.dimension(0);
 
  IntTab& les_elems=dom.les_elems();
  int nbelem=dom.nb_elem();
 
  // Count the elements attached to each vertex:
  ArrOfInt nb_elem_per_som(nbsom);
  nb_elem_per_som = 0;
  for (int ne = 0; ne < nbelem; ne++)
    for (int ns = 0; ns < dimension+1; ns++)
      nb_elem_per_som(les_elems(ne,ns))++;
 
  //Split elements for the problematic vertex
  // PQ : 25/05/07
  // - either automatically (every vertex attached to only one element)
  // - or from a list of vertices (list generated during a pre-computation taking into account the BC type)
  //   with the following split option in that case (read from the "decoupage_som" file):
  //
  // 0 : traditional split (center of gravity)
  // 1 : split passing through the opposite vertex of the neighboring element
 
  int option_decoupage=-1;
 
  LecFicDiffuse fic;
  if (lecture_decoupage_som)
    {
      Cerr<<"The file" << decoup_som <<" is checked before reading."<<finl;
      fic.ouvrir(decoup_som);
      if(fic.good())
        {
          int dim_cas, nbsom_cas;
          fic >> option_decoupage;
          fic >> dim_cas;
          fic >> nbsom_cas;
          if(dim_cas!=dimension)
            {
              Cerr << "Error for " <<que_suis_je()<<"::interpreter_" << finl;
              Cerr << "The file " << decoup_som << " is planned for a case of dimension " << dim_cas << "D" << finl;
              Cerr << "while the considered domain " << dom.le_nom() << " has a dimension " << dimension << "D." << finl;
              Process::exit();
            }
          if(nbsom!=nbsom_cas)
            {
              Cerr << "Error for " <<que_suis_je()<<"::interpreter_" << finl;
              Cerr << "The nodes number (" <<nbsom_cas<< ") readen in the file " << decoup_som << finl;
              Cerr << "dot not correspond to those of the meshing (" << nbsom << ")" << finl;
              Cerr << "Please check that the file you have specified " << decoup_som << finl;
              Cerr << "is the one to consider for this meshing." << finl;
              Process::exit();
            }
        }
      else
        {
          Cerr << "Error for " <<que_suis_je()<<"::interpreter_" << finl;
          Cerr << "Problem while trying to open the file " << decoup_som << finl;
          Process::exit();
        }
      Cerr << "option_decoupage " << option_decoupage << finl;
 
      for (int somm=0; somm<nbsom; somm++)
        {
          if (nb_elem_per_som(somm) != 1) continue;
          //Split elements for the problematic vertex
          int somm_lu = -1, elem_opp, somm_opp, somm1, somm2, elem;
          fic >> somm_lu >> somm_opp >> somm1 >> somm2;
          if (dimension==3)
            {
              int somm3;
              fic >> somm3;
            }
          fic >> elem >> elem_opp;
          if(somm_lu!=-1) somm = somm_lu; // -1 end-of-file marker
          if(nbsom<=somm)
            {
              Cerr << "Error in VerifierCoin::interpreter" << finl;
              Cerr << "The node " << somm << " is not found." << finl;
              Cerr << "Check the .Zones files are up to date with your mesh file." << finl;
              Process::exit();
            }
          Cerr<<"-> VerifierCoin is applied on the node "<<somm<< " of coordinates: ";
          for(int dir=0; dir<dimension; dir++) Cerr<<sommets(somm,dir)<<" ";
          Cerr<<"..."<<finl;
 
          if (option_decoupage==1 && dimension==2 && somm_lu!=-1)  // inversion of vertices
            {
              les_elems(elem,0) = somm ;
              les_elems(elem,1) = somm_opp ;
              les_elems(elem,2) = somm1 ;
 
              les_elems(elem_opp,0) = somm ;
              les_elems(elem_opp,1) = somm_opp ;
              les_elems(elem_opp,2) = somm2 ;
            }
          else // create a new vertex at the center of gravity of the element
            cut_elem(elem, xp);
        }
    }
  else
    {
      std::map<int,int> som_elem; // To sort vertices as before
      for (int elem = 0; elem < nbelem; elem++)
        for (int ns = 0; ns < dimension+1; ns++)
          {
            int somm = les_elems(elem, ns);
            if (nb_elem_per_som(somm) == 1) som_elem.insert({somm, elem});
          }
      for (auto pair : som_elem)
        {
          int somm = pair.first;
          int elem = pair.second;
          nb_elem_per_som(somm) = 0;  // mark: vertex processed, avoid double split
          Cerr << "-> VerifierCoin is applied on the node " << somm << " of coordinates: ";
          for (int dir = 0; dir < dimension; dir++) Cerr << sommets(somm, dir) << " ";
          Cerr << "..." << finl;
          cut_elem(elem, xp);
        }
    }
 
  Scatter::init_sequential_domain(dom);
 
  return is;
}