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UsesCase_MEDfield_7.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 7 : write a field with computing steps and profiles
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_float tria3values_step1_profile1[3] = {1000., 4000., 8000.};
37  const med_float tria3values_step2_profile1[8] = {1500., 0., 0., 4500., 0., 0., 0., 8500.};
38  const med_float tria3values_step2_profile2[8] = { 0., 2500., 3500., 0., 5500., 6500., 7500., 0.};
39  const med_float quad4values_step1[4] = {10000., 20000., 30000., 40000.};
40  const med_float quad4values_step2[4] = {15000., 25000., 35000., 45000.};
41  const char profile1name[MED_NAME_SIZE+1] = "MED_TRIA3_PROFILE1";
42  const med_int profile1[3] = {1, 4, 8};
43  const med_int profile1size = 3;
44  const char profile2name[MED_NAME_SIZE+1] = "MED_TRIA3_PROFILE2";
45  const med_int profile2[5] = {2, 3, 5, 6, 7};
46  const med_int profile2size = 5;
47  const med_int ntria3 = 8;
48  const med_int nquad4 = 4;
49  int ret=-1;
50 
51  /* file creation */
52  fid = MEDfileOpen("UsesCase_MEDfield_7.med",MED_ACC_CREAT);
53  if (fid < 0) {
54  MESSAGE("ERROR : file creation ...");
55  goto ERROR;
56  }
57 
58  /* create mesh link */
59  if (MEDlinkWr(fid,meshname,"./UsesCase_MEDmesh_1.med") < 0) {
60  MESSAGE("ERROR : create mesh link ...");
61  goto ERROR;
62  }
63 
64  /* create the profiles in the file */
65  if (MEDprofileWr(fid, profile1name, profile1size, profile1 ) < 0) {
66  MESSAGE("ERROR : create profile ...");
67  goto ERROR;
68  }
69 
70  if (MEDprofileWr(fid, profile2name, profile2size, profile2 ) < 0) {
71  MESSAGE("ERROR : create profile ...");
72  goto ERROR;
73  }
74 
75  /* field creation : temperature field : 1 component in celsius degree
76  * the mesh is the 2D unstructured mesh of UsecaseMEDmesh_1.c
77  * use case.
78  * Computation step unit in 'ms'
79  */
80  if (MEDfieldCr(fid, fieldname, MED_FLOAT64, ncomponent,
81  componentname, componentunit,"ms", meshname) < 0) {
82  MESSAGE("ERROR : create field");
83  goto ERROR;
84  }
85 
86  /* two computation steps */
87  /* write values at cell centers : 8 MED_TRIA3 and 4 MED_QUAD4 */
88 
89  /* STEP 1 : dt1 = 5.5, it = 1*/
90  /* MED_TRIA3 : with a profile of 3 values in compact memory storage mode */
91  if (MEDfieldValueWithProfileWr(fid, fieldname, 1, 1, 5.5, MED_CELL,MED_TRIA3,
94  (unsigned char*) tria3values_step1_profile1) < 0) {
95  MESSAGE("ERROR : write field values on MED_TRIA3");
96  goto ERROR;
97  }
98  /* MED_QUAD4 : with no profile */
99  if (MEDfieldValueWithProfileWr(fid, fieldname, 1, 1, 5.5, MED_CELL, MED_QUAD4,
102  (unsigned char*) quad4values_step1) < 0) {
103  MESSAGE("ERROR : write field values on MED_QUAD4 ");
104  goto ERROR;
105  }
106 
107  /* STEP 2 : dt2 = 8.9, it = 1*/
108  /* MED_TRIA3 : with a profile of 3 values then a profile of 5 values in global memory storage mode */
109  if (MEDfieldValueWithProfileWr(fid, fieldname, 2 , 1 , 8.9 , MED_CELL, MED_TRIA3,
110  MED_GLOBAL_STMODE, profile1name, MED_NO_LOCALIZATION,
112  (unsigned char*) tria3values_step2_profile1) < 0) {
113  MESSAGE("ERROR : write field values on MED_TRIA3 ...");
114  goto ERROR;
115  }
116  if (MEDfieldValueWithProfileWr(fid, fieldname, 2 , 1 , 8.9 , MED_CELL, MED_TRIA3,
117  MED_GLOBAL_STMODE, profile2name, MED_NO_LOCALIZATION,
119  (unsigned char*) tria3values_step2_profile2) < 0) {
120  MESSAGE("ERROR : write field values on MED_TRIA3 ...");
121  goto ERROR;
122  }
123 
124  /* MED_QUAD4 : with no profile */
125  if (MEDfieldValueWithProfileWr(fid, fieldname, 2, 1, 8.9, MED_CELL, MED_QUAD4,
128  (unsigned char*) quad4values_step2) < 0) {
129  MESSAGE("ERROR : write field values on MED_QUAD4 ... ");
130  goto ERROR;
131  }
132 
133  ret=0;
134  ERROR:
135 
136  /* close file */
137  if (MEDfileClose(fid) < 0) {
138  MESSAGE("ERROR : close file ...");
139  ret=-1;
140  }
141 
142  return ret;
143 }
144 
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.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
main
int main(int argc, char **argv)
Definition: UsesCase_MEDfield_7.c:29
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