usecases/c/UsesCase_MEDfield_10.c
/* This file is part of MED.
*
* COPYRIGHT (C) 1999 - 2021 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/>.
*/
/*
* Field use case 10 : write a field in a MED file with computing steps,
* profiles, integration points and interpolation families
*/
#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 char fieldname[MED_NAME_SIZE+1] = "TEMPERATURE_FIELD";
const med_int ncomponent = 1;
const char componentname[MED_SNAME_SIZE+1] = "TEMPERATURE";
const char componentunit[MED_SNAME_SIZE+1] = "C";
const med_float tria3values_step1_profile1[9] = {1000.,1010.,1020.,
4000.,4010.,4020.,
8000.,8010.,8020. };
const med_float tria3values_step2_profile1[24] = {1500.,1510.,1520.,
0., 0., 0.,
0., 0., 0.,
4500.,4510,4520.,
0., 0., 0.,
0., 0., 0.,
0., 0., 0.,
8500., 8510, 8520 };
const med_float tria3values_step2_profile2[32] = { 0., 0., 0., 0.,
2500.,2510.,2520,2530.,
3500.,3510.,3520.,3530.,
0., 0., 0., 0.,
5500.,5510.,5520.,5530.,
6500.,6510.,6520.,6530.,
7500.,7510.,7520.,7530.,
0., 0., 0., 0. };
const med_int ntria3 = 8;
const med_int nquad4 = 4;
const med_float quad4values_step1[4] = {10000., 20000., 30000., 40000.};
const med_float quad4values_step2[4] = {15000., 25000., 35000., 45000.};
const char profile1name[MED_NAME_SIZE+1] = "MED_TRIA3_PROFILE1";
const med_int profile1[3] = {1, 4, 8};
const med_int profile1size = 3;
const char profile2name[MED_NAME_SIZE+1] = "MED_TRIA3_PROFILE2";
const med_int profile2[5] = {2, 3, 5, 6, 7};
const med_int profile2size = 5;
const char localization1name[MED_NAME_SIZE+1] = "TRIA3_INTEGRATION_POINTS_3";
const med_float weight1[3] = {1.0/6, 1.0/6, 1.0/6};
const med_float elementcoordinate[6] = {0.0, 0.0, 1.0, 0.0, 0.0,1.0};
const med_float ipoint1coordinate[6] = {1.0/6, 1.0/6, 2.0/3, 1.0/6, 1.0/6, 2.0/6};
const char localization2name[MED_NAME_SIZE+1] = "TRIA3_INTEGRATION_POINTS_4";
const med_float weight2[6] = {25.0/(24*4), 25.0/(24*4), 25.0/(24*4), -27.0/(24*4)};
const med_float ipoint2coordinate[8] = {1.0/5, 1.0/5, 3.0/5, 1.0/5, 1.0/5, 3.0/5, 1.0/3, 1.0/3};
med_int nipoint, spacedim;
const char interpname[MED_NAME_SIZE+1] = "MED_TRIA3 interpolation family";
int ret=-1;
/* file creation */
fid = MEDfileOpen("UsesCase_MEDfield_10.med",MED_ACC_CREAT);
if (fid < 0) {
MESSAGE("ERROR : file creation ...");
goto ERROR;
}
/* create mesh link */
if (MEDlinkWr(fid,meshname,"./UsesCase_MEDmesh_1.med") < 0) {
MESSAGE("ERROR : create mesh link ...");
goto ERROR;
}
/* create the profiles in the file */
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;
}
/* create the localization elements for integration points */
spacedim = 2;
nipoint = 3;
if (MEDlocalizationWr(fid, localization1name, MED_TRIA3, spacedim,
elementcoordinate, MED_FULL_INTERLACE,
nipoint, ipoint1coordinate, weight1,
MED_NO_INTERPOLATION, MED_NO_MESH_SUPPORT) < 0) {
MESSAGE("ERROR : create famlily of integration points ...");
goto ERROR;
}
spacedim = 2;
nipoint = 4;
if (MEDlocalizationWr(fid, localization2name, MED_TRIA3, spacedim,
elementcoordinate, MED_FULL_INTERLACE,
nipoint, ipoint2coordinate, weight2,
MED_NO_INTERPOLATION, MED_NO_MESH_SUPPORT) < 0) {
MESSAGE("ERROR : create famlily of integration points ...");
goto ERROR;
}
/*
* Temperature field creation :
* - 1 component
* - component unit : celsius degree
* - mesh is the 2D unstructured mesh of UsecaseMEDmesh_1.c use case.
* - computation step unit in 'ms'
*/
if (MEDfieldCr(fid, fieldname, MED_FLOAT64,
ncomponent, componentname, componentunit,
"ms", meshname) < 0) {
MESSAGE("ERROR : create field");
goto ERROR;
}
/* write interpolation family name for MED_TRIA3 cell type */
/* The interpolation family "interpname" is created in the UsesCase_MEDinterp_1
use case */
if (MEDfieldInterpWr(fid,fieldname,interpname) <0) {
MESSAGE("ERROR : write field interpolation family name ...");
goto ERROR;
}
/* two computation steps */
/* write values at cell centers : 8 MED_TRIA3 and 4 MED_QUAD4 */
/* STEP 1 : dt1 = 5.5, it = 1*/
/* MED_TRIA3 : with a profile of 3 values in compact memory storage mode
and a family of 3 integration points */
if (MEDfieldValueWithProfileWr(fid, fieldname, 1, 1, 5.5, MED_CELL,MED_TRIA3,
MED_COMPACT_STMODE, profile1name, localization1name,
MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
ntria3, (unsigned char*) tria3values_step1_profile1) < 0) {
MESSAGE("ERROR : write field values on MED_TRIA3");
goto ERROR;
}
/* MED_QUAD4 : with no profile */
if (MEDfieldValueWithProfileWr(fid, fieldname, 1, 1, 5.5, MED_CELL, MED_QUAD4,
MED_COMPACT_STMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
nquad4, (unsigned char*) quad4values_step1) < 0) {
MESSAGE("ERROR : write field values on MED_QUAD4 ");
goto ERROR;
}
/* STEP 2 : dt2 = 8.9, it = 1*/
/* MED_TRIA3 : with a profile of 3 values then a profile of 5 values in global memory storage mode
* For each profile, a family of 3 and then 4 integration points */
if (MEDfieldValueWithProfileWr(fid, fieldname, 2 , 1 , 8.9 , MED_CELL, MED_TRIA3,
MED_GLOBAL_STMODE, profile1name, localization1name,
MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
ntria3, (unsigned char*) tria3values_step2_profile1) < 0) {
MESSAGE("ERROR : write field values on MED_TRIA3 ...");
goto ERROR;
}
if (MEDfieldValueWithProfileWr(fid, fieldname, 2 , 1 , 8.9 , MED_CELL, MED_TRIA3,
MED_GLOBAL_STMODE, profile2name, localization2name,
MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
ntria3, (unsigned char*) tria3values_step2_profile2) < 0) {
MESSAGE("ERROR : write field values on MED_TRIA3 ...");
goto ERROR;
}
/* MED_QUAD4 : with no profile */
if (MEDfieldValueWithProfileWr(fid, fieldname, 2, 1, 8.9, MED_CELL, MED_QUAD4,
MED_COMPACT_STMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
nquad4, (unsigned char*) quad4values_step2) < 0) {
MESSAGE("ERROR : write field values on MED_QUAD4 ... ");
goto ERROR;
}
ret=0;
ERROR:
/* close file */
if (MEDfileClose(fid) < 0) {
MESSAGE("ERROR : close file ...");
ret=-1;
}
return ret;
}
MEDfieldCr
MEDC_EXPORT med_err MEDfieldCr(const med_idt fid, const char *const fieldname, const med_field_type fieldtype, const med_int ncomponent, const char *const componentname, const char *const componentunit, const char *const dtunit, const char *const meshname)
Cette fonction crée un champ dans un fichier.
Definition: MEDfieldCr.c:44
MED_TRIA3
#define MED_TRIA3
Definition: med.h:203
MED_FULL_INTERLACE
Definition: med.h:96
MEDfileOpen
MEDC_EXPORT med_idt MEDfileOpen(const char *const filename, const med_access_mode accessmode)
Ouverture d'un fichier MED.
Definition: MEDfileOpen.c:42
MED_SNAME_SIZE
#define MED_SNAME_SIZE
Definition: med.h:82
med_idt
hid_t med_idt
Definition: med.h:331
MED_NO_LOCALIZATION
#define MED_NO_LOCALIZATION
Definition: med.h:275
MED_CELL
Definition: med.h:143
MESSAGE
#define MESSAGE(chaine)
Definition: med_utils.h:324
MEDlinkWr
MEDC_EXPORT med_err MEDlinkWr(const med_idt fid, const char *const meshname, const char *const link)
Cette routine permet d'écrire un lien dans un fichier MED.
Definition: MEDlinkWr.c:36
med_int
int med_int
Definition: med.h:342
MED_NO_MESH_SUPPORT
#define MED_NO_MESH_SUPPORT
Definition: med.h:273
MEDfieldInterpWr
MEDC_EXPORT med_err MEDfieldInterpWr(const med_idt fid, const char *const fieldname, const char *const interpname)
Cette routine associe une fonction d'interpolation interpname au champ résultat fieldname.
Definition: MEDfieldInterpWr.c:36
med.h
med_float
double med_float
Definition: med.h:336
MED_ACC_CREAT
Definition: med.h:123
MED_GLOBAL_STMODE
Definition: med.h:109
MEDprofileWr
MEDC_EXPORT med_err MEDprofileWr(const med_idt fid, const char *const profilename, const med_int profilesize, const med_int *const profilearray)
Cette routine permet d'écrire un profil dans un fichier MED.
Definition: MEDprofileWr.c:40
MED_NAME_SIZE
#define MED_NAME_SIZE
Definition: med.h:81
MEDfileClose
MEDC_EXPORT med_err MEDfileClose(med_idt fid)
Fermeture d'un fichier MED.
Definition: MEDfileClose.c:30
MED_ALL_CONSTITUENT
#define MED_ALL_CONSTITUENT
Definition: med.h:299
MEDfieldValueWithProfileWr
MEDC_EXPORT med_err MEDfieldValueWithProfileWr(const med_idt fid, const char *const fieldname, const med_int numdt, const med_int numit, const med_float dt, const med_entity_type entitype, const med_geometry_type geotype, const med_storage_mode storagemode, const char *const profilename, const char *const localizationname, const med_switch_mode switchmode, const med_int componentselect, const med_int nentity, const unsigned char *const value)
Cette fonction permet d'écrire les valeurs d'un champ définies sur des entités d'un maillage pour une...
Definition: MEDfieldValueWithProfileWr.c:48
MED_COMPACT_STMODE
Definition: med.h:110
MED_NO_PROFILE
#define MED_NO_PROFILE
Definition: med.h:281
MED_FLOAT64
Definition: med.h:166
MED_NO_INTERPOLATION
#define MED_NO_INTERPOLATION
Definition: med.h:277
MEDlocalizationWr
MEDC_EXPORT med_err MEDlocalizationWr(const med_idt fid, const char *const localizationname, const med_geometry_type geotype, const med_int spacedimension, const med_float *const elementcoordinate, const med_switch_mode switchmode, const med_int nipoint, const med_float *const ipointcoordinate, const med_float *const weight, const char *const geointerpname, const char *const ipointstructmeshname)
Cette routine permet l'écriture d'une localisation localizationname de points d'intégration dans/auto...
Definition: MEDlocalizationWr.c:49
main
int main(int argc, char **argv)
Definition: 3.0.8/test10.c:50
med_utils.h
MED_QUAD4
#define MED_QUAD4
Definition: med.h:204