# c/test23.c

    /*  This file is part of MED.
     *
     *  COPYRIGHT (C) 1999 - 2012  EDF R&D, CEA/DEN
     *  MED is free software: you can redistribute it and/or modify
     *  it under the terms of the GNU Lesser General Public License as published by
     *  the Free Software Foundation, either version 3 of the License, or
     *  (at your option) any later version.
     *
     *  MED is distributed in the hope that it will be useful,
     *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     *  GNU Lesser General Public License for more details.
     *
     *  You should have received a copy of the GNU Lesser General Public License
     *  along with MED.  If not, see <http://www.gnu.org/licenses/>.
     */

    /******************************************************************************
     * - Nom du fichier : test23.c
     *
     * - Description : ecriture de mailles/faces de type MED_POLYGONE
     *                 dans un maillage MED
     *
     *****************************************************************************/

    #include <med.h>
    #define MESGERR 1
    #include <med_utils.h>

    #ifdef DEF_LECT_ECR
    #define MODE_ACCES MED_ACC_RDWR
    #elif DEF_LECT_AJOUT
    #define MODE_ACCES MED_ACC_RDEXT
    #else
    #define MODE_ACCES MED_ACC_CREAT
    #endif

    int main (int argc, char **argv)

    {
      med_idt fid;
      char maa[MED_NAME_SIZE+1] = "maa1";
      med_int mdim = 3;
      med_int index[4] = {1,6,12,17};
      med_int con[16] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16};
      med_int n=3,ni = 4;
      /*                            123456789012345612345678901234561234567890123456 */
      char nom[MED_SNAME_SIZE*3+1]="poly1           poly2           poly3           ";
      med_int num[3] = {1,2,3};
      med_int fam[3] = {0,-1,-2};
      char nomcoo[3*MED_SNAME_SIZE+1] = "x               y               z               ";
      char unicoo[3*MED_SNAME_SIZE+1] = "cm              cm              cm              ";

      /* Creation du fichier test23.med */
      fid = MEDfileOpen("test23.med",MODE_ACCES);
      if (fid == -1) {
        MESSAGE("Erreur a la creation du fichier test23.med");
        return -1;
      }
      printf("Creation du fichier test23.med \n");

      /* Creation du maillage */
      if (MEDmeshCr( fid, maa, mdim, mdim, MED_UNSTRUCTURED_MESH,
                     "un maillage pour test23","s", MED_SORT_DTIT,
                     MED_CARTESIAN, nomcoo, unicoo) < 0) {
        MESSAGE("Erreur a la creation du maillage");
        return -1;
      }
      printf("Creation du maillage \n");

      /* Ecriture de la connectivite des mailles polygones en mode nodal */
      if (MEDmeshPolygonWr(fid,maa,MED_NO_DT,MED_NO_IT,MED_UNDEF_DT,MED_CELL,MED_NODAL,
                           ni,index,con) < 0) {
        MESSAGE("Erreur a l'ecriture de la connectivite des mailles MED_POLYGONE");
        return -1;
      }
      printf("Ecriture des connectivites de mailles de type MED_POLYGONE en mode nodal \n");

      /* Ecriture des noms des polygones */
      /* ecriture (optionnelle) des noms des polygones */
      if (MEDmeshEntityNameWr(fid,maa,MED_NO_DT,MED_NO_IT,
                              MED_CELL,MED_POLYGON,n,nom) < 0) {
        MESSAGE("Erreur a l'ecriture des noms des polygones");
        return -1;
      }
      printf("Ecriture des noms des polygones \n");

      /* ecriture (optionnelle) des numeros des polygones */
      if (MEDmeshEntityNumberWr(fid,maa,MED_NO_DT,MED_NO_IT,
                                MED_CELL,MED_POLYGON,n,num) < 0) {
        MESSAGE("Erreur a l'ecriture des numeros des polygones");
        return -1;
      }
      printf("Ecriture des numeros des polygones \n");

      /* ecriture des numeros des familles des polygones */
      if (MEDmeshEntityFamilyNumberWr(fid,maa,MED_NO_DT,MED_NO_IT,
                                      MED_CELL,MED_POLYGON,n,fam) < 0) {
        MESSAGE("Erreur a l'ecriture des numeros de familles des polygones");
        return -1;
      }
      printf("Ecriture des numeros des familles des polygones \n");

      /* Fermeture du fichier */
      if (MEDfileClose(fid) < 0) {
        MESSAGE("Erreur a la fermeture du fichier");
        return -1;
      }
      printf("Fermeture du fichier test23.med \n");

      return 0;
    }