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UsesCase_MEDfield_15b.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 15 : write a field in a MED file with
20 * values defined on struct elements
21 */
22
23 #include <med.h>
24
25 #include "med_hdfi.h"
26 #define MESGERR 1
27 #include <med_utils.h>
28
29 #include <string.h>
30
31
32 int main (int argc, char **argv) {
33 med_idt fid2=0,oid=0;
34 med_idt fid=0,mfid=0;
35 const char meshname[MED_NAME_SIZE+1] = "COMPUT_MESH";
36 const char fieldname[MED_NAME_SIZE+1] = "SPEED";
37 const med_int ncomponent = 3;
38 /* 123456789012345612345678901234561234567890123456 */
39 const char componentname[3*MED_SNAME_SIZE+1] = "Vx Vy Vz";
40 const char componentunit[3*MED_SNAME_SIZE+1] = "m/s m/s m/s";
41 med_geometry_type geotype=MED_NONE;
42 const med_int npart = 3;
43 char structelementname[MED_NAME_SIZE+1]="";
44 const med_float part_speed1[3*3] = { 1.1, 2.2, 3.3,
45 4.4, 5.5, 6.6,
46 7.7, 8.8, 9.9 };
47 int ret=-1;
48
49
50 /* File creation to write the field */
51 fid = MEDfileOpen("UsesCase_MEDfield_15b.med",MED_ACC_CREAT);
52 if (fid < 0) {
53 MESSAGE("ERROR : file creation ...");
54 goto ERROR;
55 }
56
57 /* Create mesh link */
58 if (MEDlinkWr(fid,meshname,"./UsesCase_MEDstructElement_1.med") < 0) {
59 MESSAGE("ERROR : create mesh link ...");
60 goto ERROR;
61 }
62
63 /*
64 * Read struct element geometric type
65 *
66 * UsesCase_MEDstructElement_1_byid.med
67 */
68 fid2 = MEDfileOpen(argv[1],MED_ACC_RDONLY);
69 if (fid2 < 0) {
70 MESSAGE("Erreur � l'ouverture du fichier UsesCase_MEDstructElement_1_byid.med");
71 goto ERROR;
72 }
73
74
75 if (( mfid=MEDfileObjectsMountById(fid,fid2,"/byid",MED_ELSTRUCT)) < 0 ) {
76 MESSAGE("ERROR : file mounting ...");
77 goto ERROR;
78 }
79
80 strcpy(structelementname,MED_PARTICLE_NAME);
81 geotype = MEDstructElementGeotype(fid,structelementname);
82
83
84 /*
85 * Speed field creation for particles :
86 * - 3 component
87 * - component unit : m/s
88 * - mesh is the 3D computation mesh of UsesCase_MEDstructElement_1 use case.
89 * - computation step unit in 'ms'
90 */
91 if (MEDfieldCr(fid, fieldname, MED_FLOAT64,
92 ncomponent, componentname, componentunit,
93 "ms", meshname) < 0) {
94 MESSAGE("ERROR : create field");
95 goto ERROR;
96 }
97
98 if (MEDfieldValueWithProfileWr(fid, fieldname, MED_NO_DT, MED_NO_IT, MED_UNDEF_DT, MED_STRUCT_ELEMENT, geotype,
99 MED_COMPACT_STMODE, MED_NO_PROFILE, MED_NO_LOCALIZATION,
100 MED_FULL_INTERLACE, MED_ALL_CONSTITUENT,
101 npart, (unsigned char*) part_speed1) < 0) {
102 MESSAGE("ERROR : write field values on MED_PARTICLE ");
103 goto ERROR;
104 }
105
106 if ( MEDfileObjectsUnmount(fid, mfid, MED_ELSTRUCT) < 0 ) {
107 MESSAGE("ERROR : file unmounting ...");
108 goto ERROR;
109 }
110
111 ret=0;
112 ERROR:
113
114 if (MEDfileClose(fid) < 0) {
115 MESSAGE("ERROR : close file ...");
116 ret=-1;
117 }
118
119
120 return ret;
121 }
122
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
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_SNAME_SIZE
#define MED_SNAME_SIZE
Definition: med.h:82
MED_PARTICLE_NAME
#define MED_PARTICLE_NAME
Definition: med.h:454
med_idt
hid_t med_idt
Definition: med.h:331
MEDfileObjectsMountById
MEDC_EXPORT med_idt MEDfileObjectsMountById(const med_idt fid, const med_idt chfid, const char *const chpath, const med_class medclass)
Cette routine permet le montage d'une collection d'objets de type medclass dans le fichier associé à ...
Definition: MEDfileObjectsMountById.c:43
MED_ACC_RDONLY
Definition: med.h:120
main
int main(int argc, char **argv)
Definition: UsesCase_MEDfield_15b.c:32
MED_STRUCT_ELEMENT
Definition: med.h:144
MEDfileObjectsUnmount
MEDC_EXPORT med_err MEDfileObjectsUnmount(const med_idt fid, const med_idt mid, const med_class medclass)
Une fois le démontage effectué, les données précédemment montées ne sont plus accessibles.
Definition: MEDfileObjectsUnmount.c:33
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_hdfi.h
med.h
med_float
double med_float
Definition: med.h:336
MED_NO_DT
#define MED_NO_DT
Definition: med.h:320
MED_NONE
#define MED_NONE
Definition: med.h:231
MED_ACC_CREAT
Definition: med.h:123
MEDstructElementGeotype
MEDC_EXPORT med_geometry_type MEDstructElementGeotype(const med_idt fid, const char *const modelname)
Cette routine renvoie le type géométrique mgeotype associé au modèle d'éléments de structure de nom m...
Definition: MEDstructElementGeotype.c:38
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_UNDEF_DT
#define MED_UNDEF_DT
Definition: med.h:322
MED_FLOAT64
Definition: med.h:166
MED_NO_IT
#define MED_NO_IT
Definition: med.h:321
MED_ELSTRUCT
Definition: med.h:189
med_utils.h