UsesCase_MEDfield_1.c

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00001 /*  This file is part of MED.
00002  *
00003  *  COPYRIGHT (C) 1999 - 2015  EDF R&D, CEA/DEN
00004  *  MED is free software: you can redistribute it and/or modify
00005  *  it under the terms of the GNU Lesser General Public License as published by
00006  *  the Free Software Foundation, either version 3 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  MED is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU Lesser General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU Lesser General Public License
00015  *  along with MED.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 
00018 /* 
00019  * Field use case 1 : write a field on mesh vertices and elements
00020  */
00021 
00022 #include <med.h>
00023 #define MESGERR 1
00024 #include <med_utils.h>
00025 
00026 #include <string.h>
00027 
00028 
00029 int main (int argc, char **argv) {
00030   med_idt fid;
00031   const char meshname[MED_NAME_SIZE+1] = "2D unstructured mesh";
00032   const char fieldname[MED_NAME_SIZE+1] = "TEMPERATURE_FIELD";
00033   const med_int ncomponent = 1;
00034   const char componentname[MED_SNAME_SIZE+1] = "TEMPERATURE";
00035   const char componentunit[MED_SNAME_SIZE+1] = "C";
00036   const med_float verticesvalues[15] = {  0.,   100., 200.,  300.,  400., 
00037                                           500.,   600., 700.,  800.,  900,
00038                                           1000., 1100, 1200., 1300., 1500. };
00039   const med_int nnodes = 15;
00040   const med_float tria3values[8] = {1000., 2000., 3000., 4000., 
00041                                     5000., 6000., 7000., 8000.};
00042   const med_int ntria3 = 8;
00043   const med_float quad4values[4] = {10000., 20000., 30000., 4000.};
00044   const med_int nquad4 = 4;
00045   int ret=-1;
00046 
00047   /* file creation */
00048   fid = MEDfileOpen("UsesCase_MEDfield_1.med",MED_ACC_CREAT);
00049   if (fid < 0) {
00050     MESSAGE("ERROR : file creation ...");
00051     goto ERROR;
00052   }
00053   
00054   /* field creation : temperature field  : 1 component in celsius degree
00055    *                  the mesh is the 2D unstructured mesh of UsecaseMEDmesh_1.c
00056    */ 
00057 
00058   /* create mesh link */
00059   if (MEDlinkWr(fid,meshname,"./UsesCase_MEDmesh_1.med") < 0) {
00060     MESSAGE("ERROR : create mesh link ...");
00061     goto ERROR;
00062   }
00063   
00064   if (MEDfieldCr(fid, fieldname, MED_FLOAT64, 
00065                  ncomponent, componentname, componentunit,"", 
00066                  meshname) < 0) {
00067     MESSAGE("ERROR : create field");
00068     goto ERROR;
00069   }
00070   
00071   /* write field values at vertices */
00072   if (MEDfieldValueWr(fid, fieldname, MED_NO_DT, MED_NO_IT, 0.0, MED_NODE,
00073                       MED_NONE, MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
00074                       nnodes,(unsigned char*) verticesvalues) < 0) {
00075     MESSAGE("ERROR : write field values on vertices");
00076     goto ERROR;
00077   }
00078   
00079   /* write values at cell centers : 8 MED_TRIA3 and 4 MED_QUAD4 */
00080   /* MED_TRIA3 */
00081   if (MEDfieldValueWr(fid, fieldname, MED_NO_DT, MED_NO_IT, 0.0, MED_CELL,
00082                       MED_TRIA3, MED_FULL_INTERLACE, MED_ALL_CONSTITUENT, 
00083                       ntria3, (unsigned char*) tria3values) < 0) {
00084     MESSAGE("ERROR : write field values on MED_TRIA3");
00085     goto ERROR;
00086   }
00087   /* MED_QUAD4 */
00088   if (MEDfieldValueWr(fid, fieldname, MED_NO_DT, MED_NO_IT, 0.0, MED_CELL,
00089                       MED_QUAD4, MED_FULL_INTERLACE, MED_ALL_CONSTITUENT, 
00090                       nquad4, (unsigned char*) quad4values) < 0) {
00091     MESSAGE("ERROR : write field values on MED_QUAD4 ");
00092     goto ERROR;
00093   }
00094 
00095   ret=0;
00096  ERROR :
00097   
00098   /* close file */
00099   if (MEDfileClose(fid) < 0) {
00100     MESSAGE("ERROR : close file ...");             
00101     ret = -1; 
00102   } 
00103   
00104   return ret;
00105 }
00106 

Généré le Thu Oct 8 14:26:17 2015 pour MED fichier par  doxygen 1.6.1