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UsesCase_MEDstructElement_1.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  * StructElement use case 1 : write struct elements model in a file
20  * STEP 1 : suppport mesh creation
21  * STEP 2 : struct element model creation
22  * STEP 3 : computation mesh creation
23  */
24 
25 #include <med.h>
26 #define MESGERR 1
27 #include <med_utils.h>
28 
29 #include <string.h>
30 
31 int main (int argc, char **argv) {
32  med_idt fid;
33  char elementname[MED_NAME_SIZE+1]="";
34  const char ballsupportname[MED_NAME_SIZE+1]="BALL_SUPPORT_MESH";
35  const char beamsupportname[MED_NAME_SIZE+1]="BEAM_SUPPORT_MESH";
36  const char computmeshname[MED_NAME_SIZE+1]="COMPUT_MESH";
37  const char beamsectionname[MED_NAME_SIZE+1]="BEAM_SECTION_MESH";
38  const med_int elementdim = 3;
39  med_int nnode;
41  med_int ncomp;
42  const med_float ballmeshnodescoo[3] = {0.0, 0.0, 0.0 };
43  const med_float beammeshnodescoo[3*7] = {0.0,0.0,0.0,
44  0.0,0.0,2.0,
45  0.0,0.0,4.0,
46  0.0,0.0,5.0,
47  0.0,0.0,7.0,
48  0.0,0.0,10.0,
49  0.0,0.0,11.0 };
50  const med_float beamsectioncoo[9*3] = {-0.2,-0.2,0.0,
51  0.0,-0.2,0.0,
52  0.2,-0.2,0.0,
53  -0.2, 0.0,0.0,
54  0.0, 0.0,0.0,
55  0.2, 0.0,0.0,
56  -0.2, 0.2,0.0,
57  0.0, 0.2,0.0,
58  0.2, 0.2,0.0 };
59  const med_int seg2connectivity[2*6] = {1,2, 2,3, 3,4, 4,5, 5,6, 6,7};
60  med_int spacedim, meshdim,nseg2;
61  /* 123456789012345612345678901234561234567890123456 */
62  const char axisname[3*MED_SNAME_SIZE+1] = "x y z ";
63  const char unitname[3*MED_SNAME_SIZE+1] = "cm cm cm ";
64  const med_float attvalue[6] = {0.2,0.3,0.4,0.4,0.3,0.2};
65  /* 1234567890123456789012345678901234567890123456789012345678901234 */
66  const char attprovalue[2*MED_NAME_SIZE+1] = {"EXTREMITY_1_____________________________________________________" \
67  "EXTREMITY_2_____________________________________________________" };
68  const char profilename[MED_NAME_SIZE+1] = "EXTREMITY_PROFILE_NAME";
69  const med_int profilesize = 2;
70  const med_int profile[2] = {1,6};
71  const med_float meshcoo[3*12] = { 0.0, 0.0, 0.0,
72  1.1, 1.1, 1.1,
73  2.2, 2.2, 2.2,
74  10., 10., 10.,
75  12., 12., 12.,
76  60., 20., 20.,
77  70., 20., 20.,
78  80., 20., 20.,
79  90., 20., 20.,
80  100., 20., 20.,
81  110., 20., 20.,
82  120., 20., 20.
83  };
84  const med_int beamconnectivity[12] = { 6,7,
85  7,8,
86  8,9,
87  9,10,
88  10,11,
89  11,12 };
90  med_int nentity;
91  const med_int labels[3] = { 1, 2, 3 }; /* nodes numbers */
92  const med_int ballconnectivity[2] = { 4, 5 }; /* nodes numbers */
93  const med_float balldiameter[2] = { 2.0, 5.8 };
94  const med_int nquad4=4;
95  const med_int beamsectionconnectivity[4*4] = { 4,5,2,1,
96  5,6,3,2,
97  7,8,5,4,
98  8,9,6,5};
99  int ret=-1;
100 
101  /* file creation */
102  fid = MEDfileOpen("UsesCase_MEDstructElement_1.med",MED_ACC_CREAT);
103  if (fid < 0) {
104  MESSAGE("ERROR : file creation");
105  goto ERROR;
106  }
107 
108  /* STEP 1 : support meshes creation */
109  spacedim = 3;
110  meshdim = 3;
111 
112  /* Mesh 1 : support mesh for ball model */
113  if (MEDsupportMeshCr(fid, ballsupportname, spacedim, meshdim, "Support mesh for a ball model",
114  MED_CARTESIAN, axisname, unitname) < 0) {
115  MESSAGE("ERROR : creating a support mesh ...");
116  goto ERROR;
117  }
118  /* 1 node and no cell in the mesh */
119  nnode = 1;
120  if (MEDmeshNodeCoordinateWr(fid, ballsupportname, MED_NO_DT, MED_NO_IT, 0.0,
121  MED_FULL_INTERLACE, nnode, ballmeshnodescoo) < 0) {
122  MESSAGE("ERROR : write nodes coordinates ...");
123  goto ERROR;
124  }
125 
126  /* Mesh 2 :support mesh for beam model */
127  if (MEDsupportMeshCr(fid, beamsupportname, spacedim, meshdim, "Support mesh for a beam model",
128  MED_CARTESIAN, axisname, unitname) < 0) {
129  MESSAGE("ERROR : creating a support mesh ...");
130  goto ERROR;
131  }
132  /* 7 nodes and 6 MED_SEG2 */
133  nnode = 7;
134  if (MEDmeshNodeCoordinateWr(fid, beamsupportname, MED_NO_DT, MED_NO_IT, 0.0,
135  MED_FULL_INTERLACE, nnode, beammeshnodescoo) < 0) {
136  MESSAGE("ERROR : write nodes coordinates ...");
137  goto ERROR;
138  }
139  nseg2 = 6;
140  if (MEDmeshElementConnectivityWr(fid, beamsupportname, MED_NO_DT, MED_NO_IT, 0.0, MED_CELL, MED_SEG2,
141  MED_NODAL, MED_FULL_INTERLACE, nseg2, seg2connectivity) < 0) {
142  MESSAGE("ERROR : write cells connectivity ...");
143  goto ERROR;
144  }
145 
146  /* Mesh 3 : support mesh to define a section for integration points of
147  a struct element */
148  if (MEDsupportMeshCr(fid, beamsectionname, spacedim, meshdim, "Support mesh for a section of the beam model",
149  MED_CARTESIAN, axisname, unitname) < 0) {
150  MESSAGE("ERROR : creating a support mesh ...");
151  goto ERROR;
152  }
153 
154  nnode = 9;
155  if (MEDmeshNodeCoordinateWr(fid, beamsectionname, MED_NO_DT, MED_NO_IT, 0.0,
156  MED_FULL_INTERLACE, nnode, beamsectioncoo) < 0) {
157  MESSAGE("ERROR : write nodes coordinates ...");
158  goto ERROR;
159  }
160 
161  if (MEDmeshElementConnectivityWr(fid, beamsectionname, MED_NO_DT, MED_NO_IT, 0.0, MED_CELL, MED_QUAD4,
162  MED_NODAL, MED_FULL_INTERLACE, nquad4, beamsectionconnectivity) < 0) {
163  MESSAGE("ERROR : write cells connectivity ...");
164  goto ERROR;
165  }
166 
167  /* STEP 2 */
168  /* particle model creation : no support mesh */
169  strcpy(elementname,MED_PARTICLE_NAME);
170  if ((geotype = MEDstructElementCr(fid, elementname, elementdim, MED_NO_MESHNAME,
171  MED_NONE,MED_NONE)) < 0) {
172  MESSAGE("ERROR : creating struct element");
173  goto ERROR;
174  }
175  ncomp=1;
176  if (MEDstructElementVarAttCr(fid, elementname,
177  MED_PARTICLE_LABEL, MED_ATT_INT, ncomp) < 0) {
178  MESSAGE("ERROR : creating struct element");
179  goto ERROR;
180  }
181 
182  /* ball model creation */
183  strcpy(elementname,MED_BALL_NAME);
184  if ((geotype = MEDstructElementCr(fid, elementname, elementdim, ballsupportname,
185  MED_NODE,MED_NONE)) < 0) {
186  MESSAGE("ERROR : creating struct element");
187  goto ERROR;
188  }
189  ncomp=1;
190  if (MEDstructElementVarAttCr(fid, elementname,
191  MED_BALL_DIAMETER, MED_ATT_FLOAT64, ncomp) < 0) {
192  MESSAGE("ERROR : creating struct element");
193  goto ERROR;
194  }
195 
196 
197  /* A beam */
198  strcpy(elementname,MED_BEAM_NAME);
199  if ((geotype = MEDstructElementCr(fid, elementname, elementdim, beamsupportname,
200  MED_CELL,MED_SEG2)) < 0) {
201  MESSAGE("ERROR : creating struct element");
202  goto ERROR;
203  }
204  ncomp=1;
205  /* a first constant attribute */
206  if (MEDstructElementConstAttWr(fid, elementname,
208  MED_CELL,(void*) attvalue) < 0) {
209  MESSAGE("ERROR : creating struct element");
210  goto ERROR;
211  }
212  /* a second constant attribute defined with a profile for the first and the
213  last segment */
214  /* create the profile */
215  if (MEDprofileWr(fid, profilename, profilesize, profile ) < 0) {
216  MESSAGE("ERROR : create profile ...");
217  goto ERROR;
218  }
219  /* write the constant attribute */
221  elementname,
222  "BEAM_EXTREMITIES_LABELS",
223  MED_ATT_NAME,
224  ncomp,
225  MED_CELL,
226  profilename,
227  (void*) attprovalue) < 0) {
228  MESSAGE("ERROR : creating struct element");
229  goto ERROR;
230  }
231 
232  /* STEP 3 : Computation mesh creation */
233 
234  /* mesh creation */
235  if (MEDmeshCr(fid, computmeshname, spacedim, meshdim, MED_UNSTRUCTURED_MESH,
236  "Computation mesh", "s", MED_SORT_DTIT,
237  MED_CARTESIAN, axisname, unitname) < 0) {
238  MESSAGE("ERROR : creating computation mesh ...");
239  goto ERROR;
240  }
241 
242  /* mesh node creation */
243  nnode = 12;
244  if (MEDmeshNodeCoordinateWr(fid, computmeshname, MED_NO_DT, MED_NO_IT, MED_UNDEF_DT,
245  MED_FULL_INTERLACE, nnode, meshcoo) < 0) {
246  MESSAGE("ERROR : writing nodes coordinates ...");
247  goto ERROR;
248  }
249 
250  /* 1 beam */
251  nentity = 1;
252  SSCRUTE(elementname);
253  geotype = MEDstructElementGeotype(fid,elementname);
254  ISCRUTE_int(geotype);
255 
257  MED_STRUCT_ELEMENT, geotype, MED_NODAL,
258  MED_FULL_INTERLACE, nentity, beamconnectivity) < 0 ) {
259  MESSAGE("ERROR : beam connectivity ...");
260  goto ERROR;
261  }
262 
263  /* Get the dynamic geometry type of each struct element model.
264  Then for each type, write the connectivity and variable(s) attribute(s) */
265 
266  /* 3 particles in the mesh */
267  strcpy(elementname,MED_PARTICLE_NAME);
268  geotype = MEDstructElementGeotype(fid,elementname);
269  nentity = 3;
270  ISCRUTE_int(geotype);
271  if (MEDmeshElementConnectivityWr(fid, computmeshname, MED_NO_DT, MED_NO_IT, 0.0,
273  nentity, 0) < 0) {
274  MESSAGE("ERROR : writing particles connectivity ...");
275  goto ERROR;
276  }
277 
278  /* no support mesh => no connectivity, the particles are localized with an association between
279  the mesh nodes and the label attribute defined in the struct model */
280  if (MEDmeshStructElementVarAttWr(fid, computmeshname, MED_NO_DT, MED_NO_IT,
281  geotype, MED_PARTICLE_LABEL,
282  nentity, labels) < 0 ) {
283  MESSAGE("ERROR : writing variable attributes ...");
284  goto ERROR;
285  }
286 
287 
288  /* 2 balls */
289  strcpy(elementname,MED_BALL_NAME);
290  nentity = 2;
291  geotype = MEDstructElementGeotype(fid,elementname);
293  MED_STRUCT_ELEMENT, geotype, MED_NODAL,
294  MED_FULL_INTERLACE, nentity, ballconnectivity) < 0 ) {
295  MESSAGE("ERROR : writing balls connectivity");
296  goto ERROR;
297  }
298 
299  /* variable attribute : write ball diameter */
300  if (MEDmeshStructElementVarAttWr(fid, computmeshname, MED_NO_DT, MED_NO_IT,
301  geotype, MED_BALL_DIAMETER,
302  nentity, balldiameter) < 0 ) {
303  MESSAGE("ERROR : writing variable attributes ...");
304  goto ERROR;
305  }
306 
307 
308  ret=0;
309  ERROR:
310 
311  /* close file */
312  if (MEDfileClose(fid) < 0) {
313  MESSAGE("ERROR : file closing");
314  ret=-1;
315  }
316 
317  return ret;
318 }
319 
MED_CARTESIAN
Definition: med.h:258
MED_FULL_INTERLACE
Definition: med.h:96
MED_BALL_DIAMETER
#define MED_BALL_DIAMETER
Definition: med.h:460
MEDstructElementConstAttWr
MEDC_EXPORT med_err MEDstructElementConstAttWr(const med_idt fid, const char *const modelname, const char *const constattname, const med_attribute_type constatttype, const med_int ncomponent, const med_entity_type sentitytype, const void *const value)
Cette routine définit un attribut caractéristique constant d'un modèle d'éléments de structure.
Definition: MEDstructElementConstAttWr.c:43
MED_SORT_DTIT
Definition: med.h:309
MED_PARTICLE_LABEL
#define MED_PARTICLE_LABEL
Definition: med.h:459
MEDmeshCr
MEDC_EXPORT med_err MEDmeshCr(const med_idt fid, const char *const meshname, const med_int spacedim, const med_int meshdim, const med_mesh_type meshtype, const char *const description, const char *const dtunit, const med_sorting_type sortingtype, const med_axis_type axistype, const char *const axisname, const char *const axisunit)
Cette routine permet de créer un maillage dans un fichier.
Definition: MEDmeshCr.c:45
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
MEDstructElementConstAttWithProfileWr
MEDC_EXPORT med_err MEDstructElementConstAttWithProfileWr(const med_idt fid, const char *const modelname, const char *const constattname, const med_attribute_type constatttype, const med_int ncomponent, const med_entity_type sentitytype, const char *const profilename, const void *const value)
Cette routine définit un attribut caractéristique constant d'un modèle d'éléments de structure.
Definition: MEDstructElementConstAttWithProfileWr.c:44
MED_NODAL
Definition: med.h:255
MED_PARTICLE_NAME
#define MED_PARTICLE_NAME
Definition: med.h:454
ISCRUTE_int
#define ISCRUTE_int(entier)
Definition: med_utils.h:314
med_idt
hid_t med_idt
Definition: med.h:331
main
int main(int argc, char **argv)
Definition: UsesCase_MEDstructElement_1.c:31
MED_SEG2
#define MED_SEG2
Definition: med.h:200
MED_STRUCT_ELEMENT
Definition: med.h:144
MEDmeshStructElementVarAttWr
MEDC_EXPORT med_err MEDmeshStructElementVarAttWr(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_geometry_type mgeotype, const char *const varattname, const med_int nentity, const void *const value)
Cette routine écrit les valeurs d'un attribut caractéristique variable sur les éléments de structure ...
Definition: MEDmeshStructElementVarAttWr.c:42
MED_CELL
Definition: med.h:143
MED_BALL_NAME
#define MED_BALL_NAME
Definition: med.h:455
MESSAGE
#define MESSAGE(chaine)
Definition: med_utils.h:324
MED_ATT_FLOAT64
Definition: med.h:173
med_int
int med_int
Definition: med.h:342
MED_NO_MESHNAME
#define MED_NO_MESHNAME
Definition: med.h:270
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_BEAM_NAME
#define MED_BEAM_NAME
Definition: med.h:456
MED_NODE
Definition: med.h:143
MED_ATT_NAME
Definition: med.h:175
SSCRUTE
#define SSCRUTE(chaine)
Definition: med_utils.h:323
MEDmeshNodeCoordinateWr
MEDC_EXPORT med_err MEDmeshNodeCoordinateWr(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_float dt, const med_switch_mode switchmode, const med_int nentity, const med_float *const coordinates)
Cette routine permet d'écrire dans un maillage le tableau des coordonnées des noeuds,...
Definition: MEDmeshNodeCoordinateWr.c:45
MED_ACC_CREAT
Definition: med.h:123
MED_ATT_INT
Definition: med.h:174
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_BEAM_THICKNESS
#define MED_BEAM_THICKNESS
Definition: med.h:461
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
MED_UNSTRUCTURED_MESH
Definition: med.h:131
MEDfileClose
MEDC_EXPORT med_err MEDfileClose(med_idt fid)
Fermeture d'un fichier MED.
Definition: MEDfileClose.c:30
MED_UNDEF_DT
#define MED_UNDEF_DT
Definition: med.h:322
MEDmeshElementConnectivityWr
MEDC_EXPORT med_err MEDmeshElementConnectivityWr(const med_idt fid, const char *const meshname, const med_int numdt, const med_int numit, const med_float dt, const med_entity_type entitype, const med_geometry_type geotype, const med_connectivity_mode cmode, const med_switch_mode switchmode, const med_int nentity, const med_int *const connectivity)
Cette routine permet d'écrire dans un maillage le tableau des connectivités pour un type géométrique ...
Definition: MEDmeshElementConnectivityWr.c:42
MED_NO_IT
#define MED_NO_IT
Definition: med.h:321
MEDstructElementVarAttCr
MEDC_EXPORT med_err MEDstructElementVarAttCr(const med_idt fid, const char *const modelname, const char *const varattname, const med_attribute_type varatttype, const med_int ncomponent)
Cette routine déclare la présence d'un attribut caractéristique variable attaché aux éléments de type...
Definition: MEDstructElementVarAttCr.c:42
MEDsupportMeshCr
MEDC_EXPORT med_err MEDsupportMeshCr(const med_idt fid, const char *const supportmeshname, const med_int spacedim, const med_int meshdim, const char *const description, const med_axis_type axistype, const char *const axisname, const char *const axisunit)
Cette routine permet de créer un maillage support.
Definition: MEDsupportMeshCr.c:46
med_utils.h
MEDstructElementCr
MEDC_EXPORT med_geometry_type MEDstructElementCr(const med_idt fid, const char *const modelname, const med_int modeldim, const char *const supportmeshname, const med_entity_type sentitytype, const med_geometry_type sgeotype)
Cette routine permet de créer un nouveau modèle d'éléments de structure dans un fichier MED.
Definition: MEDstructElementCr.c:50
MED_QUAD4
#define MED_QUAD4
Definition: med.h:204