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UsesCase_MEDfield_13.c
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1 /* This file is part of MED.
2 *
3 * COPYRIGHT (C) 1999 - 2021 EDF R&D, CEA/DEN
4 * MED is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
8 *
9 * MED is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with MED. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 /*
19 * Field use case 13 : write a field on nodes elements in a MED file
20 */
21
22 #include <med.h>
23 #define MESGERR 1
24 #include <med_utils.h>
25
26 #include <string.h>
27
28
29 int main (int argc, char **argv) {
30 med_idt fid;
31 const char meshname[MED_NAME_SIZE+1] = "2D unstructured mesh";
32 const char fieldname[MED_NAME_SIZE+1] = "TEMPERATURE_FIELD";
33 const med_int ncomponent = 1;
34 const char componentname[MED_SNAME_SIZE+1] = "TEMPERATURE";
35 const char componentunit[MED_SNAME_SIZE+1] = "C";
36 const med_int nquad4 = 4;
37 const med_float quad4values_step1[4*4] = { 10000., 20000., 30000., 40000.,
38 50000., 60000., 70000., 80000.,
39 90000., 100000., 110000., 120000.,
40 130000., 140000., 150000., 160000. };
41 const med_float quad4values_step2[4*4] = { 100., 200., 300., 400.,
42 500., 600., 700., 800.,
43 900., 1000., 1100., 1200.,
44 1300., 1400., 1500., 1600. };
45 int ret=-1;
46
47 /* file creation */
48 fid = MEDfileOpen("UsesCase_MEDfield_13.med",MED_ACC_CREAT);
49 if (fid < 0) {
50 MESSAGE("ERROR : file creation ...");
51 goto ERROR;
52 }
53
54 /* create mesh link */
55 if (MEDlinkWr(fid,meshname,"./UsesCase_MEDmesh_1.med") < 0) {
56 MESSAGE("ERROR : create mesh link ...");
57 goto ERROR;
58 }
59
60 /*
61 * Temperature field creation :
62 * - 1 component
63 * - component unit : celsius degree
64 * - mesh is the 2D unstructured mesh of UsecaseMEDmesh_1.c use case.
65 * - computation step unit in 'ms'
66 */
67 if (MEDfieldCr(fid, fieldname, MED_FLOAT64,
68 ncomponent, componentname, componentunit,
69 "ms", meshname) < 0) {
70 MESSAGE("ERROR : create field");
71 goto ERROR;
72 }
73
74 /* two computation steps */
75 /* write values at nodes elements : 4 MED_QUAD4 */
76
77 /* STEP 1 : dt1 = 5.5, it = 1*/
78 /* MED_QUAD4 : with no profile */
79 if (MEDfieldValueWithProfileWr(fid, fieldname, 1, 1, 5.5, MED_NODE_ELEMENT, MED_QUAD4,
80 MED_COMPACT_STMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
81 MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
82 nquad4, (unsigned char*) quad4values_step1) < 0) {
83 MESSAGE("ERROR : write field values on MED_QUAD4 ");
84 goto ERROR;
85 }
86
87 /* STEP 2 : dt2 = 8.9, it = 1*/
88 /* MED_QUAD4 : with no profile */
89 if (MEDfieldValueWithProfileWr(fid, fieldname, 2, 1, 8.9, MED_NODE_ELEMENT, MED_QUAD4,
90 MED_COMPACT_STMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
91 MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
92 nquad4, (unsigned char*) quad4values_step2) < 0) {
93 MESSAGE("ERROR : write field values on MED_QUAD4 ... ");
94 goto ERROR;
95 }
96
97 ret=0;
98 ERROR:
99
100 /* close file */
101 if (MEDfileClose(fid) < 0) {
102 MESSAGE("ERROR : close file ...");
103 ret=-1;
104 }
105
106 return ret;
107 }
108
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_FULL_INTERLACE
Definition: med.h:96
main
int main(int argc, char **argv)
Definition: UsesCase_MEDfield_13.c:29
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
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.h
med_float
double med_float
Definition: med.h:336
MED_ACC_CREAT
Definition: med.h:123
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_utils.h
MED_QUAD4
#define MED_QUAD4
Definition: med.h:204
MED_NODE_ELEMENT
Definition: med.h:144