MED fichier
usecases/c/UsesCase_MEDinterp_2.c
/* This file is part of MED.
*
* COPYRIGHT (C) 1999 - 2016 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 2 : read an interpolation family with a direct access by name
* 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;
const char interpname[MED_NAME_SIZE+1] = "MED_TRIA3 interpolation family";
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;
}
/* with direct access by the family name */
if (MEDinterpInfoByName(fid,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;
}