MED fichier: Fichier source de UsesCase_MEDmesh_12.c

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UsesCase_MEDmesh_12.c
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1 /* This file is part of MED.
2 *
3 * COPYRIGHT (C) 1999 - 2023 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 * Use case 12 : read a 2D unstructured mesh with moving grid (generic approach)
20 */
21
22 #include <med.h>
23 #define MESGERR 1
24 #include <med_utils.h>
25
26 #include <string.h>
27
28 int main (int argc, char **argv) {
29 med_idt fid;
30 med_int nmesh;
31 char meshname[MED_NAME_SIZE+1]="";
32 char meshdescription[MED_COMMENT_SIZE+1]="";
33 med_int meshdim;
34 med_int spacedim;
35 med_sorting_type sortingtype;
36 med_int nstep;
37 med_mesh_type meshtype;
38 med_axis_type axistype;
39 char *axisname;
40 char *unitname;
41 char dtunit[MED_SNAME_SIZE+1]="";
42 med_float *coordinates = NULL;
43 med_int ngeo = 0;
44 med_int nnodes = 0;
45 med_int *connectivity = NULL;
46 med_bool coordinatechangement;
47 med_bool geotransformation;
48 med_bool matrixtransformation;
49 med_int matrixsize;
50 med_float matrix[7]={ 0, 0, 0, 0, 0, 0, 0};
51 int i, it, j;
52 med_int profilesize;
53 char profilename[MED_NAME_SIZE+1]="";
54 med_int numdt, numit;
55 med_float dt;
56 med_geometry_type geotype;
57 med_geometry_type *geotypes = MED_GET_CELL_GEOMETRY_TYPE;
58 int ret=-1;
59
60 /* open MED file with READ ONLY access mode */
61 fid = MEDfileOpen("UsesCase_MEDmesh_9.med",MED_ACC_RDONLY);
62 if (fid < 0) {
63 MESSAGE("ERROR : open file in READ ONLY ACCESS mode ...");
64 goto ERROR;
65 }
66
67
68 /* read how many mesh in the file */
69 if ((nmesh = MEDnMesh(fid)) < 0) {
70 MESSAGE("ERROR : read how many mesh ...");
71 goto ERROR;
72 }
73
74 for (i=0;i<nmesh;i++) {
75
76 /* read computation space dimension */
77 if ((spacedim = MEDmeshnAxis(fid, i+1)) < 0) {
78 MESSAGE("ERROR : read computation space dimension ...");
79 goto ERROR;
80 }
81
82 /* memory allocation */
83 if ((axisname = (char*) malloc(MED_SNAME_SIZE*spacedim+1)) == NULL) {
84 MESSAGE("ERROR : memory allocation ...");
85 goto ERROR;
86 }
87 if ((unitname = (char*) malloc(MED_SNAME_SIZE*spacedim+1)) == NULL) {
88 MESSAGE("ERROR : memory allocation ...");
89 goto ERROR;
90 }
91
92 /* read mesh informations : meshname, mesh dimension, mesh type ... */
93 if (MEDmeshInfo(fid, i+1, meshname, &spacedim, &meshdim, &meshtype, meshdescription,
94 dtunit, &sortingtype, &nstep,
95 &axistype, axisname, unitname) < 0) {
96 MESSAGE("ERROR : mesh info ...");
97 free(axisname);
98 free(unitname);
99 goto ERROR;
100 }
101 free(axisname);
102 free(unitname);
103
104
105 /* read how many nodes in the mesh */
106 if ((nnodes = MEDmeshnEntity(fid, meshname, MED_NO_DT, MED_NO_IT, MED_NODE, MED_NONE,
107 MED_COORDINATE, MED_NO_CMODE,&coordinatechangement,
108 &geotransformation)) < 0) {
109 MESSAGE("ERROR : number of nodes ...");
110 goto ERROR;
111 }
112
113 /* read mesh nodes coordinates */
114 if ((coordinates = (med_float*) malloc(sizeof(med_float)*nnodes*spacedim)) == NULL) {
115 MESSAGE("ERROR : memory allocation ...");
116 goto ERROR;
117 }
118
119 if (MEDmeshNodeCoordinateRd(fid, meshname, MED_NO_DT, MED_NO_IT, MED_FULL_INTERLACE,
120 coordinates) < 0) {
121 MESSAGE("ERROR : nodes coordinates ...");
122 free(coordinates);
123 goto ERROR;
124 }
125
126 /* read all MED geometry cell types */
127 for (it=1; it<= MED_N_CELL_FIXED_GEO; it++) {
128
129 geotype = geotypes[it];
130
131 if ((ngeo = MEDmeshnEntity(fid, meshname, MED_NO_DT, MED_NO_IT, MED_CELL,geotype,
132 MED_CONNECTIVITY, MED_NODAL, &coordinatechangement,
133 &geotransformation)) < 0) {
134 MESSAGE("ERROR : number of cell ...");
135 ISCRUTE_int(geotype);
136 goto ERROR;
137 }
138
139 if (ngeo) {
140 /* read cells connectivity in the mesh */
141 if ((connectivity = (med_int *) malloc(sizeof(med_int)*ngeo*(geotype%100))) == NULL) {
142 MESSAGE("ERROR : memory allocation ...");
143 goto ERROR;
144 }
145
146 if (MEDmeshElementConnectivityRd(fid, meshname, MED_NO_DT, MED_NO_IT, MED_CELL,
147 geotype, MED_NODAL, MED_FULL_INTERLACE, connectivity) < 0) {
148 MESSAGE("ERROR : cell connectivity ...");
149 ISCRUTE_int(geotype);
150 free(connectivity);
151 goto ERROR;
152 }
153
154 /* memory deallocation */
155 free(connectivity);
156 connectivity = NULL;
157 }
158 }
159
160
161 /* read nodes coordinates changements step by step */
162 for (it=1;it<nstep;it++) {
163
164 if (MEDmeshComputationStepInfo(fid, meshname, it+1,
165 &numdt, &numit, &dt) < 0) {
166 MESSAGE("ERROR : Computing step info ...");
167 SSCRUTE(meshname);
168 goto ERROR;
169 }
170
171 /* test changement : for nodes coordinates */
172 if ((nnodes = MEDmeshnEntityWithProfile(fid, meshname, numdt, numit,
173 MED_NODE, MED_NONE,
174 MED_COORDINATE, MED_NO_CMODE,
175 MED_GLOBAL_STMODE, profilename, &profilesize,
176 &coordinatechangement, &geotransformation)) < 0) {
177 MESSAGE("ERROR : number of nodes ...");
178 goto ERROR;
179 }
180
181 /* if only coordinates have changed, then read the new coordinates */
182 if (coordinatechangement && geotransformation) {
183 if (MEDmeshNodeCoordinateWithProfileRd(fid, meshname, numdt, numit,
184 MED_GLOBAL_STMODE,profilename,
185 MED_FULL_INTERLACE,MED_ALL_CONSTITUENT,
186 coordinates) < 0) {
187 MESSAGE("ERROR : nodes coordinates ...");
188 free(coordinates);
189 goto ERROR;
190 }
191 }
192
193 if (coordinatechangement && ! geotransformation) {
194
195 matrixsize = MEDmeshnEntity(fid,meshname,numdt,numit,
196 MED_NODE,MED_NONE,MED_COORDINATE_TRSF,MED_NODAL,&coordinatechangement,
197 &matrixtransformation);
198
199 if (matrixsize < 0) {
200 MESSAGE("ERROR : matrix transformation ...");
201 goto ERROR;
202 }
203
204 if (matrixtransformation) {
205 if ( MEDmeshNodeCoordinateTrsfRd(fid, meshname, numdt, numit, matrix) < 0 ) {
206 MESSAGE("ERROR : read transformation matrix ...");
207 goto ERROR;
208 }
209 }
210 }
211 }
212 }
213 free(coordinates);
214
215 ret=0;
216 ERROR:
217
218 /* close MED file */
219 if (MEDfileClose(fid) < 0) {
220 MESSAGE("ERROR : close file");
221 ret=-1;
222 }
223
224
225 return ret;
226 }
227
MED_ACC_RDONLY
Definition: med.h:122
MED_COMMENT_SIZE
#define MED_COMMENT_SIZE
Definition: med.h:81
med_geometry_type
int med_geometry_type
Definition: med.h:196
MED_SNAME_SIZE
#define MED_SNAME_SIZE
Definition: med.h:84
ISCRUTE_int
#define ISCRUTE_int(entier)
Definition: med_utils.h:314
MEDnMesh
MEDC_EXPORT med_int MEDnMesh(const med_idt fid)
Cette routine permet de lire le nombre de maillages dans un fichier.
Definition: MEDnMesh.c:34
med_idt
hid_t med_idt
Definition: med.h:333
MED_GLOBAL_STMODE
Definition: med.h:111
med_sorting_type
med_sorting_type
Definition: med.h:311
MEDmeshInfo
MEDC_EXPORT med_err MEDmeshInfo(const med_idt fid, const int meshit, char *const meshname, med_int *const spacedim, med_int *const meshdim, med_mesh_type *const meshtype, char *const description, char *const dtunit, med_sorting_type *const sortingtype, med_int *const nstep, med_axis_type *const axistype, char *const axisname, char *const axisunit)
Cette routine permet de lire les informations relatives à un maillage dans un fichier.
Definition: MEDmeshInfo.c:43
MESSAGE
#define MESSAGE(chaine)
Definition: med_utils.h:324
MED_FULL_INTERLACE
Definition: med.h:98
med_int
int med_int
Definition: med.h:344
MED_GET_CELL_GEOMETRY_TYPE
med_geometry_type MED_GET_CELL_GEOMETRY_TYPE[MED_N_CELL_FIXED_GEO+2]
Definition: MEDiterators.c:55
MED_COORDINATE_TRSF
Definition: med.h:154
med_bool
med_bool
Definition: med.h:262
MEDmeshnEntity
MEDC_EXPORT med_int MEDmeshnEntity(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_entity_type entitype, const med_geometry_type geotype, const med_data_type datatype, const med_connectivity_mode cmode, med_bool *const changement, med_bool *const transformation)
Cette routine permet de lire le nombre d'entités dans un maillage pour une étape de calcul donnée.
Definition: MEDmeshnEntity.c:44
MEDmeshComputationStepInfo
MEDC_EXPORT med_err MEDmeshComputationStepInfo(const med_idt fid, const char *const meshname, const int csit, med_int *const numdt, med_int *const numit, med_float *const dt)
Cette routine permet de lire les informations relatives à une étape de calcul d'un maillage.
Definition: MEDmeshComputationStepInfo.c:38
med_float
double med_float
Definition: med.h:338
MEDmeshNodeCoordinateWithProfileRd
MEDC_EXPORT med_err MEDmeshNodeCoordinateWithProfileRd(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_storage_mode storagemode, const char *const profilename, const med_switch_mode switchmode, const med_int dimselect, med_float *const coordinates)
Cette routine permet de lire dans un maillage le tableau des coordonnées des noeuds,...
Definition: MEDmeshNodeCoordinateWithProfileRd.c:40
MED_COORDINATE
Definition: med.h:151
MED_NO_CMODE
Definition: med.h:257
MEDmeshnEntityWithProfile
MEDC_EXPORT med_int MEDmeshnEntityWithProfile(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_entity_type entitype, const med_geometry_type geotype, const med_data_type datatype, const med_connectivity_mode cmode, const med_storage_mode storagemode, char *const profilename, med_int *const profilesize, med_bool *const changement, med_bool *const transformation)
Cette routine permet de lire le nombre d'entités dans un maillage pour une étape de calcul et un prof...
Definition: MEDmeshnEntityWithProfile.c:47
MED_NO_DT
#define MED_NO_DT
Definition: med.h:322
MED_NONE
#define MED_NONE
Definition: med.h:233
MEDfileClose
MEDC_EXPORT med_err MEDfileClose(med_idt fid)
Fermeture d'un fichier MED.
Definition: MEDfileClose.c:30
MED_N_CELL_FIXED_GEO
#define MED_N_CELL_FIXED_GEO
Definition: med.h:241
SSCRUTE
#define SSCRUTE(chaine)
Definition: med_utils.h:323
med_mesh_type
med_mesh_type
Definition: med.h:133
MED_CELL
Definition: med.h:145
MED_NAME_SIZE
#define MED_NAME_SIZE
Definition: med.h:83
MED_ALL_CONSTITUENT
#define MED_ALL_CONSTITUENT
Definition: med.h:301
med_utils.h
MED_NODE
Definition: med.h:145
med_axis_type
med_axis_type
Definition: med.h:260
med.h
MEDmeshNodeCoordinateTrsfRd
MEDC_EXPORT med_err MEDmeshNodeCoordinateTrsfRd(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_float *const coordinatetrsf)
Cette routine lit les paramètres de translation rotation à appliquer aux noeuds de l'étape de calcul ...
Definition: MEDmeshNodeCoordinateTrsfRd.c:40
MED_CONNECTIVITY
Definition: med.h:151
MED_NO_IT
#define MED_NO_IT
Definition: med.h:323
MEDmeshnAxis
MEDC_EXPORT med_int MEDmeshnAxis(const med_idt fid, const int meshit)
Cette routine permet de lire dans un maillage le nombre d'axes du repère des coordonnées des noeuds.
Definition: MEDmeshnAxis.c:35
main
int main(int argc, char **argv)
Definition: UsesCase_MEDmesh_12.c:28
MEDfileOpen
MEDC_EXPORT med_idt MEDfileOpen(const char *const filename, const med_access_mode accessmode)
Ouverture d'un fichier MED.
Definition: MEDfileOpen.c:42
MEDmeshNodeCoordinateRd
MEDC_EXPORT med_err MEDmeshNodeCoordinateRd(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_switch_mode switchmode, med_float *const coordinates)
Cette routine permet de lire dans un maillage le tableau des coordonnées des noeuds,...
Definition: MEDmeshNodeCoordinateRd.c:37
MED_NODAL
Definition: med.h:257
MEDmeshElementConnectivityRd
MEDC_EXPORT med_err MEDmeshElementConnectivityRd(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_entity_type entitype, const med_geometry_type geotype, const med_connectivity_mode cmode, const med_switch_mode switchmode, med_int *const connectivity)
Cette routine permet de lire dans un maillage le tableau des connectivités pour un type géométrique d...
Definition: MEDmeshElementConnectivityRd.c:40