MED fichier

usecases/c/UsesCase_MEDinterp_3.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/>.
*/
/*
* Interp use case 1 : read an interpolation family with a generic access by an iterator.
* In this example, the interpolation family can be used with
* the TEMPERATURE field of UsesCase_MEDfield_10 use case
*/
#include <med.h>
#define MESGERR 1
#include <med_utils.h>
#include <string.h>
int main (int argc, char **argv) {
med_idt fid;
char interpname[MED_NAME_SIZE+1]="";
med_int ninterp =0;
int it =0;
med_geometry_type geotype =MED_NONE;
med_bool cellnodes =MED_FALSE;
med_int nbasisfunc =0;
med_int nvariable =0;
med_int maxdegree =0;
med_int nmaxcoefficient =0;
int basisfuncit =0;
int powerit =0;
med_int ncoefficient =0;
med_int* power =NULL;
med_float* coefficient =NULL;
int coefficientit =0;
int ret=-1;
/* file creation */
fid = MEDfileOpen("UsesCase_MEDinterp_1.med",MED_ACC_RDONLY);
if (fid < 0) {
MESSAGE("ERROR : file creation ...");
goto ERROR;
}
/* how many interpolation family in the file ? */
if ((ninterp = MEDnInterp(fid)) < 0) {
MESSAGE("ERROR : read number of interpolation ...");
goto ERROR;
}
/* read each interpolation family */
/* with an access by an iterator */
for (it=1; it<= ninterp; it++) {
if (MEDinterpInfo(fid,it,interpname,&geotype,&cellnodes,&nbasisfunc,
&nvariable,&maxdegree,&nmaxcoefficient) < 0) {
MESSAGE("ERROR : interpolation function information ...");
goto ERROR;
}
/* read each basis function */
for ( basisfuncit=1; basisfuncit<= nbasisfunc; ++basisfuncit) {
if ((ncoefficient = MEDinterpBaseFunctionCoefSize(fid,interpname,basisfuncit) ) <0 ) {
MESSAGE("ERROR : read number of coefficient in the base function ...");
goto ERROR;
}
coefficient = (med_float*) calloc(sizeof(med_float),ncoefficient);
power = (med_int*) calloc(sizeof(med_int),nvariable*ncoefficient);
if (MEDinterpBaseFunctionRd(fid,interpname,basisfuncit,&ncoefficient,power,coefficient) < 0) {
MESSAGE("ERROR : read base function ...");
free(coefficient); free(power);
goto ERROR;
}
free(coefficient);
free(power);
}
}
ret=0;
ERROR:
/* close file */
if (MEDfileClose(fid) < 0) {
MESSAGE("ERROR : close file ...");
ret=-1;
}
return ret;
}
MEDnInterp
MEDC_EXPORT med_int MEDnInterp(const med_idt fid)
Cette routine renvoie le nombre d'interpolations disponibles dans le fichier.
Definition: MEDnInterp.c:34
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_geometry_type
int med_geometry_type
Definition: med.h:194
med_idt
hid_t med_idt
Definition: med.h:331
MED_ACC_RDONLY
Definition: med.h:120
MED_FALSE
Definition: med.h:260
MESSAGE
#define MESSAGE(chaine)
Definition: med_utils.h:324
med_int
int med_int
Definition: med.h:342
med.h
med_bool
med_bool
Definition: med.h:260
med_float
double med_float
Definition: med.h:336
MEDinterpBaseFunctionCoefSize
MEDC_EXPORT med_int MEDinterpBaseFunctionCoefSize(const med_idt fid, const char *const interpname, const med_int basisfuncit)
Cette routine retourne ne nombre de coefficients/monômes de la fonction de base/forme n° basisfunctit...
Definition: MEDinterpBaseFunctionCoeffSize.c:37
MED_NONE
#define MED_NONE
Definition: med.h:231
MEDinterpInfo
MEDC_EXPORT med_err MEDinterpInfo(const med_idt fid, const int interpit, char *const interpname, med_geometry_type *const geotype, med_bool *const cellnode, med_int *const nbasisfunc, med_int *const nvariable, med_int *const maxdegree, med_int *const nmaxcoef)
Cette fonction informe des caractéristiques de la fonction d'interpolation n° interpit.
Definition: MEDinterpInfo.c:43
MEDinterpBaseFunctionRd
MEDC_EXPORT med_err MEDinterpBaseFunctionRd(const med_idt fid, const char *const interpname, const int basisfuncit, med_int *const ncoef, med_int *const power, med_float *const coefficient)
Cette routine permet la lecture d'une fonction de base/forme de l'interpolation interpname.
Definition: MEDinterpBaseFunctionRd.c:41
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
main
int main(int argc, char **argv)
Definition: 3.0.8/test10.c:50
med_utils.h