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00024 #include <med.h>
00025 #define MESGERR 1
00026 #include <med_utils.h>
00027 
00028 #include <string.h>
00029 
00030 int main (int argc, char **argv) {
00031   med_idt fid;
00032   const char meshname[MED_NAME_SIZE+1]="2D structured mesh";
00033   med_int spacedim;
00034   med_int meshdim;
00035   char meshdescription[MED_COMMENT_SIZE+1];
00036   char axisname[2*MED_SNAME_SIZE+1];
00037   char unitname[2*MED_SNAME_SIZE+1];
00038   char dtunit[MED_SNAME_SIZE+1];
00039   med_mesh_type meshtype;
00040   med_axis_type axistype;
00041   med_grid_type gridtype;
00042   med_int axis, size ;
00043   med_float *cooXaxis = NULL;
00044   med_float *cooYaxis = NULL;
00045   med_bool coordinatechangement;
00046   med_bool geotransformation;
00047   med_int nstep;
00048   med_sorting_type sortingtype;
00049   int j;
00050   int ret=-1;
00051   int ncell=0;
00052   char *cellsname=NULL;
00053 
00054   
00055   fid = MEDfileOpen("UsesCase_MEDmesh_4.med",MED_ACC_RDONLY);
00056   if (fid < 0) {
00057     MESSAGE("ERROR : open file ...");
00058     goto ERROR;
00059   }
00060 
00061   
00062   if (MEDmeshInfoByName(fid, meshname, &spacedim, &meshdim, &meshtype, meshdescription, 
00063                         dtunit, &sortingtype, &nstep, &axistype, axisname, unitname) < 0) {
00064     MESSAGE("ERROR : mesh info ...");
00065     goto ERROR;
00066   }
00067   
00068   
00069   if (MEDmeshGridTypeRd(fid, meshname, &gridtype) < 0) {
00070     MESSAGE("ERROR : read grid type ...");
00071   }
00072 
00073   
00074 
00075 
00076 
00077 
00078   
00079   
00080   axis = 1;
00081   if ((size = MEDmeshnEntity(fid, meshname, MED_NO_DT, MED_NO_IT, 
00082                              MED_NODE, MED_NONE, MED_COORDINATE_AXIS1, MED_NO_CMODE,
00083                              &coordinatechangement, &geotransformation)) < 0) {
00084     MESSAGE("ERROR : number of coordinates on X axis ...");
00085     goto ERROR;
00086   }
00087   ncell = size-1;
00088 
00089   if ((cooXaxis = (med_float *) malloc(sizeof(med_float)*size)) == NULL) {
00090     MESSAGE("ERROR : memory allocation ...");
00091     goto ERROR;
00092   }
00093   if (MEDmeshGridIndexCoordinateRd(fid, meshname, MED_NO_DT, MED_NO_IT, 
00094                                    axis, cooXaxis) < 0) {
00095     MESSAGE("ERROR : read axis X coordinates ...");
00096     free(cooXaxis);
00097     goto ERROR;
00098   }  
00099   
00100   free(cooXaxis);
00101 
00102   
00103   axis = 2; 
00104   if ((size = MEDmeshnEntity(fid, meshname, MED_NO_DT, MED_NO_IT, 
00105                              MED_NODE, MED_NONE, MED_COORDINATE_AXIS2, MED_NO_CMODE,
00106                              &coordinatechangement, &geotransformation)) < 0) {
00107     MESSAGE("ERROR : number of coordinates on Y axis ...");
00108     goto ERROR;
00109   }
00110   ncell = ncell * (size-1);
00111 
00112   if ((cooYaxis = (med_float *) malloc(sizeof(med_float)*size)) == NULL) {
00113     MESSAGE("ERROR : memory allocation ...");
00114     goto ERROR;
00115   }
00116   if (MEDmeshGridIndexCoordinateRd(fid, meshname, MED_NO_DT, MED_NO_IT, 
00117                                    axis, cooYaxis) < 0) {
00118     MESSAGE("ERROR : read axis Y coordinates ...");
00119     free(cooYaxis); 
00120     goto ERROR;
00121   }
00122 
00123   free(cooYaxis);   
00124 
00125   cellsname = (char *) malloc((sizeof(char))*ncell*MED_SNAME_SIZE+1);
00126   if (MEDmeshEntityNameRd(fid, meshname, MED_NO_DT, MED_NO_IT, 
00127                           MED_CELL, MED_QUAD4, cellsname) < 0)  {
00128     MESSAGE("ERROR : read cells name ...");
00129     free(cellsname); 
00130     goto ERROR;
00131   } 
00132   free(cellsname);
00133 
00134   ret=0;
00135  ERROR:
00136  
00137   
00138   if (MEDfileClose(fid) < 0) {
00139     MESSAGE("ERROR : close file ...");             
00140     ret = -1; 
00141   }
00142 
00143   return ret;
00144 }