usecases/c/UsesCase_MEDfield_15.c
#include <med.h>
#define MESGERR 1
#include <med_utils.h>
#include <string.h>
int main (int argc, char **argv) {
  med_idt fid=0,mfid=0;
  const char meshname[MED_NAME_SIZE+1] = "COMPUT_MESH";
  const char fieldname[MED_NAME_SIZE+1] = "SPEED";
  const med_int ncomponent = 3;
     
  const char componentname[3*MED_SNAME_SIZE+1] = "Vx              Vy              Vz";
  const char componentunit[3*MED_SNAME_SIZE+1] = "m/s             m/s             m/s";
  med_geometry_type geotype=MED_NONE;
  const med_int npart = 3;
  char structelementname[MED_NAME_SIZE+1]="";
  const med_float part_speed1[3*3] = { 1.1, 2.2, 3.3,
                                 4.4, 5.5, 6.6,
                                 7.7, 8.8, 9.9 };
  int ret=-1;
  
  fid = MEDfileOpen("UsesCase_MEDfield_15.med",MED_ACC_CREAT);
  if (fid < 0) {
    MESSAGE("ERROR : file creation ...");
    goto ERROR;
  }
  
  if (MEDlinkWr(fid,meshname,"./UsesCase_MEDstructElement_1.med") < 0) {
    MESSAGE("ERROR : create mesh link ...");
    goto ERROR;
  }
  
  if (( mfid=MEDfileObjectsMount(fid,  "UsesCase_MEDstructElement_1.med",MED_ELSTRUCT)) < 0 ) {
    MESSAGE("ERROR : file mounting ...");
    goto ERROR;
  }
  strcpy(structelementname,MED_PARTICLE_NAME);
  geotype = MEDstructElementGeotype(fid,structelementname);
  
  if (MEDfieldCr(fid, fieldname, MED_FLOAT64,
                 ncomponent, componentname, componentunit,
                 "ms", meshname) < 0) {
    MESSAGE("ERROR : create field");
    goto ERROR;
  }
  if (MEDfieldValueWithProfileWr(fid, fieldname, MED_NO_DT, MED_NO_IT, MED_UNDEF_DT, MED_STRUCT_ELEMENT, geotype, 
                                 MED_COMPACT_PFLMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
                                 MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
                                 npart, (unsigned char*) part_speed1) < 0) {
    MESSAGE("ERROR : write field values on MED_PARTICLE ");
    goto ERROR;
  }
  if ( MEDfileObjectsUnmount(fid, mfid, MED_ELSTRUCT) < 0 ) {
    MESSAGE("ERROR : file unmounting ...");
    goto ERROR;
  }
  ret=0;
 ERROR:
  
  if (MEDfileClose(fid) < 0) {
    MESSAGE("ERROR : close file ...");
    ret=-1;
  }
  
  return ret;
}