#include <med.h>
#define MESGERR 1
#include <med_utils.h>
#include <string.h>
int main (int argc, char **argv) {
  med_idt fid;
  const char meshname[MED_NAME_SIZE+1] = "2D unstructured mesh";
  const med_int spacedim = 2;
  const med_int meshdim = 2;
  const char axisname[2*MED_SNAME_SIZE+1] = "x               y               ";
  const char unitname[2*MED_SNAME_SIZE+1] = "cm              cm              ";
  const med_float initial_coordinates[30] = { 2.,1.,  7.,1.,  12.,1.,  17.,1.,  22.,1.,
                                              2.,6.,  7.,6.,  12.,6.,  17.,6.,  22.,6.,
                                              2.,11., 7.,11., 12.,11., 17.,11., 22.,11.};
  const med_int nnodes = 15;
  const med_int triaconnectivity[24] = { 1,7,6,   2,7,1,  3,7,2,   8,7,3,   
                                         13,7,8, 12,7,13, 11,7,12, 6,7,11 };
  const med_int ntria3 = 8;
  const med_int quadconnectivity[16] = {3,4,9,8,    4,5,10,9, 
                                        15,14,9,10, 13,8,9,14};
  const med_int nquad4 = 4;
  
  const med_float new_coordinates_step1 [6] = { 12.,15., 17.,15., 22.,15.};
  const char profile1name[MED_NAME_SIZE+1] = "UPPER_QUAD4_PROFILE";
  const med_int profile1[3] = {13, 14, 15}; 
  const med_int profile1size = 3;
  
  const med_float new_coordinates_step2 [6] = { 12.,10., 17.,10., 22.,10.};
  const char profile2name[MED_NAME_SIZE+1] = "MIDDLE_QUAD4_PROFILE";
  const med_int profile2[3] = {8, 9, 10}; 
  const med_int profile2size = 3;
  int ret=-1;
  
  
  
  fid = MEDfileOpen("UsesCase_MEDmesh_6.med",MED_ACC_CREAT);
  if (fid < 0) {
    MESSAGE("ERROR : file creation ...");
    goto ERROR;
  }
  
  if (MEDfileCommentWr(fid,"A 2D unstructured mesh : 15 nodes, 12 cells") < 0) {
    MESSAGE("ERROR : write file description ...");
    goto ERROR;
  }
  
  if (MEDprofileWr(fid, profile1name, profile1size, profile1 ) < 0) {
    MESSAGE("ERROR : create profile ...");
    goto ERROR; 
  }
  if (MEDprofileWr(fid, profile2name, profile2size, profile2 ) < 0) {
    MESSAGE("ERROR : create profile ...");
    goto ERROR; 
  }
  
  
  if (MEDmeshCr(fid, meshname, spacedim, meshdim, MED_UNSTRUCTURED_MESH, 
                "A 2D structured mesh","",MED_SORT_DTIT,MED_CARTESIAN, axisname, unitname) < 0) {
    MESSAGE("ERROR : mesh creation ...");
    goto ERROR;
  }
  
  if (MEDmeshNodeCoordinateWithProfileWr(fid, meshname, MED_NO_DT, MED_NO_IT, 0.0,
                                         MED_COMPACT_PFLMODE, MED_NO_PROFILE,
                                         MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
                                         nnodes, initial_coordinates) < 0) {
    MESSAGE("ERROR : nodes coordinates ...");
    goto ERROR;
  }
  
  if (MEDmeshElementConnectivityWithProfileWr(fid, meshname, MED_NO_DT, MED_NO_IT, 0.0,
                                              MED_CELL, MED_TRIA3, MED_NODAL, 
                                              MED_COMPACT_PFLMODE, MED_NO_PROFILE,
                                              MED_FULL_INTERLACE, MED_ALL_CONSTITUENT, 
                                              ntria3, triaconnectivity) < 0) {
    MESSAGE("ERROR : triangular cells connectivity ...");
    goto ERROR;
  }
  if (MEDmeshElementConnectivityWithProfileWr(fid, meshname, MED_NO_DT, MED_NO_IT, 0.0,
                                              MED_CELL, MED_QUAD4, MED_NODAL, 
                                              MED_COMPACT_PFLMODE, MED_NO_PROFILE,
                                              MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,  
                                              nquad4, quadconnectivity) < 0) {
    MESSAGE("ERROR : quadrangular cells connectivity ..."); 
    goto ERROR;
  }
  
 
  
  if (MEDmeshNodeCoordinateWithProfileWr(fid, meshname, 1, 1, 5.5,
                                         MED_COMPACT_PFLMODE, profile1name,
                                         MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
                                         nnodes, new_coordinates_step1 ) < 0) {
    MESSAGE("ERROR : nodes coordinates ...");
    goto ERROR;
  }
  
  if (MEDmeshNodeCoordinateWithProfileWr(fid, meshname, 2, 1, 8.9,
                                         MED_COMPACT_PFLMODE, profile2name,
                                         MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
                                         nnodes, new_coordinates_step2 ) < 0) {
    MESSAGE("ERROR : nodes coordinates ...");
    goto ERROR;
  }
  
  if (MEDfamilyCr(fid, meshname,MED_NO_NAME, 0, 0, MED_NO_GROUP) < 0) {
    MESSAGE("ERROR : quadrangular cells connectivity ...");
    goto ERROR;
  }
  
  ret=0;
 ERROR:
  
  
  if (MEDfileClose(fid)  < 0) {
    MESSAGE("ERROR : close file ...");
    ret=-1;
  }
  return ret;
}