Version: 9.16.0
GEOM_Spanner.py


GEOM_Spanner.py

0def MakeSpanner (geompy, math, isBlocksTest = 0, isMeshTest = 0, smesh = None):
33
34
35
36 th = 4.0
37
38
39
40 p0 = geompy.MakeVertex(0., 0., 0.)
41 pth = geompy.MakeVertex(0., 0., th)
42
43 vx = geompy.MakeVectorDXDYDZ(1., 0., 0.)
44 vy = geompy.MakeVectorDXDYDZ(0., 1., 0.)
45 vz = geompy.MakeVectorDXDYDZ(0., 0., 1.)
46
47 vxy = geompy.MakeVectorDXDYDZ(1., 1., 0.)

48
49
50
51 p_10_0 = geompy.MakeVertex(10., 0., 0.)
52 p_10_25 = geompy.MakeVertex(10., 25., 0.)
53 p_0_35 = geompy.MakeVertex( 0., 35., 0.)
54 p_0_10 = geompy.MakeVertex( 0., 10., 0.)
55
56 Face11 = geompy.MakeQuad4Vertices(p_10_0, p_10_25, p_0_10, p_0_35);
57 id_face11 = geompy.addToStudy(Face11, "1 Face for Block 1")

58
59 Face12 = geompy.MakeTranslationTwoPoints(Face11, p0, pth)
60 id_face12 = geompy.addToStudy(Face12, "2 Face for Block 1")

61
62 Block1 = geompy.MakeHexa2Faces(Face11, Face12)
63 id_block1 = geompy.addToStudy(Block1, "Block 1")
64
65
66
67 p_15_0 = geompy.MakeVertex(15., 0., 0.)
68 p_15_20 = geompy.MakeVertex(15., 20., 0.)
69
70 Edge21 = geompy.MakeEdge(p_15_0, p_15_20)
71 id_edge21 = geompy.addToStudy(Edge21, "1 Edge for Block 2")
72
73 Edge22 = geompy.GetEdge(Block1, p_10_0, p_10_25)
74 id_edge22 = geompy.addToStudy(Edge22, "2 Edge for Block 2")
75
76 Face21 = geompy.MakeQuad2Edges(Edge21, Edge22);
77 id_face21 = geompy.addToStudy(Face21, "1 Face for Block 2")
78
79 Face22 = geompy.MakeTranslationTwoPoints(Face21, p0, pth)
80 id_face22 = geompy.addToStudy(Face22, "2 Face for Block 2")
81
82 Block2 = geompy.MakeHexa2Faces(Face21, Face22)
83 id_block2 = geompy.addToStudy(Block2, "Block 2")
84
85
86
87 p_15_10_1 = geompy.MakeVertex(15., 10., 1.)

88
89 Face31 = geompy.GetFaceNearPoint(Block2, p_15_10_1)
90 id_face31 = geompy.addToStudy(Face31, "1 Face for Block 3")
91
92 Prism1 = geompy.MakePrismVecH(Face31, vx, 5);
93 id_prism1 = geompy.addToStudy(Prism1, "Prism to be Block 3")
94
95 nbFaces = geompy.ShapesOp.NumberOfFaces(Prism1)
96 if nbFaces == 6:
97 print("Prism 1 is a hexahedral solid")
98 else:
99 print("Prism 1 is not a hexahedral solid")

100
101 Prism1_faces = geompy.SubShapeAllSortedCentres(Prism1, geompy.ShapeType["FACE"])
102 ii = 1
103 for aFace in Prism1_faces:
104 name = geompy.SubShapeName(aFace, Prism1)
105 Id_Face = geompy.addToStudyInFather(Prism1, aFace, name)
106 ii = ii + 1

107
108 Block3 = geompy.MakeHexa(Prism1_faces[0], Prism1_faces[1],
109 Prism1_faces[2], Prism1_faces[3],
110 Prism1_faces[4], Prism1_faces[5]);
111 id_block3 = geompy.addToStudy(Block3, "Block 3")

112
113
114
115 Face41 = geompy.GetOppositeFace(Block3, Face31)
116 id_face41 = geompy.addToStudy(Face41, "1 Face for Block 4")
117
118 p_25_5 = geompy.MakeVertex(25., 5., 0.)
119 p_25_20 = geompy.MakeVertex(25., 20., 0.)
120
121 Edge41 = geompy.MakeEdge(p_25_5, p_25_20)
122 id_edge41 = geompy.addToStudy(Edge41, "1 Edge for Block 4")
123
124 p_25_5_2 = geompy.MakeVertex(25., 5., th)
125 p_25_20_2 = geompy.MakeVertex(25., 20., th)
126
127 Edge42 = geompy.MakeEdge(p_25_5_2, p_25_20_2)
128 id_edge42 = geompy.addToStudy(Edge42, "2 Edge for Block 4")
129
130 Edge43 = geompy.MakeEdge(p_25_5, p_25_5_2)
131 id_edge43 = geompy.addToStudy(Edge43, "3 Edge for Block 4")
132
133 Edge44 = geompy.MakeEdge(p_25_20, p_25_20_2)
134 id_edge44 = geompy.addToStudy(Edge44, "4 Edge for Block 4")
135
136 Face42 = geompy.MakeQuad(Edge41, Edge42, Edge43, Edge44)
137 id_face42 = geompy.addToStudy(Face42, "2 Face for Block 4")
138
139 Block4 = geompy.MakeHexa2Faces(Face41, Face42)
140 id_block4 = geompy.addToStudy(Block4, "Block 4")
141
142
143
144 p_25_30 = geompy.MakeVertex(25., 30., 0.)
145 p_25_30_1 = geompy.MakeVertex(25., 30., 1)
146 axis_rot = geompy.MakeVector(p_25_30, p_25_30_1)
147
148 Face51 = Face42
149 Face52 = geompy.MakeRotation(Face51, axis_rot, math.pi/2.)
150 id_face52 = geompy.addToStudy(Face52, "2 Face for Block 5")
151
152 Block5 = geompy.MakeHexa2Faces(Face51, Face52)
153 id_block5 = geompy.addToStudy(Block5, "Block 5")
154
155
156
157 Comp1234 = geompy.MakeCompound([Block1, Block2, Block3, Block4])
158 Glue1234 = geompy.MakeGlueFaces(Comp1234, 1e-5)
159 id_glue1234 = geompy.addToStudy(Glue1234, "Glue 1234")
160
161 plane_mirror = geompy.MakePlane(p_25_30, vxy, 100.)
162 #id_plane_mirror = geompy.addToStudy(plane_mirror, "Plane for mirror")
163
164 Mirror1 = geompy.MakeMirrorByPlane(Glue1234, plane_mirror)
165 id_mirror1 = geompy.addToStudy(Mirror1, "Mirror 1")
166
167
168
169 p_18_0 = geompy.MakeVertex(18., 0., 0.)
170 p_20_0 = geompy.MakeVertex(20., 0., 0.)
171 p_40_0 = geompy.MakeVertex(40., 0., 0.)
172
173 Edge1s = geompy.MakeEdge(p_20_0, p_40_0)
174 id_edge1s = geompy.addToStudy(Edge1s, "1 Edge for Block 1s")
175
176 Edge2s = geompy.MakeRotation(Edge1s, vz, math.pi/12.)
177 id_edge2s = geompy.addToStudy(Edge2s, "2 Edge for Block 1s")
178
179 p_18_0_r = geompy.MakeRotation(p_18_0, vz, math.pi/24.)
180 p_20_0_r = geompy.MakeRotation(p_20_0, vz, math.pi/12.)
181 p_40_0_r = geompy.MakeRotation(p_40_0, vz, math.pi/12.)
182
183 Edge3s = geompy.MakeEdge(p_40_0, p_40_0_r)
184 id_edge3s = geompy.addToStudy(Edge3s, "3 Edge for Block 1s")
185
186 Edge4s = geompy.MakeArc(p_20_0, p_18_0_r, p_20_0_r)
187 id_edge4s = geompy.addToStudy(Edge4s, "4 Edge for Block 1s")
188
189 Face1s = geompy.MakeQuad(Edge1s, Edge2s, Edge3s, Edge4s)
190 id_face1s = geompy.addToStudy(Face1s, "1 Face for Block 1s")
191
192 Block1s = geompy.MakePrismVecH(Face1s, vz, th);
193 id_block1s = geompy.addToStudy(Block1s, "Block 1s")
194
195 p_30_0_1 = geompy.MakeVertex(30., 0., 1.)
196
197 Face2s = geompy.GetFaceNearPoint(Block1s, p_30_0_1)
198 id_face2s = geompy.addToStudy(Face2s, "2 Face of Block 1s")
199
200 f2s_ind = geompy.LocalOp.GetSubShapeIndex(Block1s, Face2s)
201
202 Block1s_tr1 = geompy.MakeMultiTransformation1D(Block1s, f2s_ind, 0, 24)
203 id_block1s_tr1 = geompy.addToStudy(Block1s_tr1, "Multi-transformed Block 1s")
204
205 p_60_150_0 = geompy.MakeVertex(60., -150., 0.)
206 Gear = geompy.MakeTranslationTwoPoints(Block1s_tr1, p0, p_60_150_0)
207 id_gear = geompy.addToStudy(Gear, "Gear")
208
209
210
211
212
213 p_55_0_1 = geompy.MakeVertex(55., 0., 1.)
214 p_55_110_1 = geompy.MakeVertex(55., -110., 1.)
215
216 Face11l = geompy.GetFaceNearPoint(Block5, p_55_0_1)
217 id_face11l = geompy.addToStudy(Face11l, "1 Face for Linking Block 1")
218
219 Face12l = geompy.GetFaceNearPoint(Gear, p_55_110_1)
220 id_face12l = geompy.addToStudy(Face12l, "2 Face for Linking Block 1")
221
222 Block1l = geompy.MakeHexa2Faces(Face11l, Face12l)
223 id_block1l = geompy.addToStudy(Block1l, "Linking Block 1")
224
225
226
227 p_25_0_1 = geompy.MakeVertex(25., 0., 1.)
228 p_45_110_1 = geompy.MakeVertex(45., -110., 1.)
229
230 Face21l = geompy.GetFaceNearPoint(Block4, p_25_0_1)
231 id_face21l = geompy.addToStudy(Face21l, "1 Face for Linking Block 2")
232
233 Face22l = geompy.GetFaceNearPoint(Gear, p_45_110_1)
234 id_face22l = geompy.addToStudy(Face22l, "2 Face for Linking Block 2")
235
236 Block2l = geompy.MakeHexa2Faces(Face21l, Face22l)
237 id_block2l = geompy.addToStudy(Block2l, "Linking Block 2")
238
239
240
241 p_55_30_1 = geompy.MakeVertex(55., 30., 1.)
242 p_65_110_1 = geompy.MakeVertex(65., -110., 1.)
243
244 Face31l = geompy.GetFaceNearPoint(Mirror1, p_55_30_1)
245 id_face31l = geompy.addToStudy(Face31l, "1 Face for Linking Block 3")
246
247 Face32l = geompy.GetFaceNearPoint(Gear, p_65_110_1)
248 id_face32l = geompy.addToStudy(Face32l, "2 Face for Linking Block 3")
249
250 Block3l = geompy.MakeHexa2Faces(Face31l, Face32l)
251 id_block3l = geompy.addToStudy(Block3l, "Linking Block 3")
252
253
254
255 CompLB = geompy.MakeCompound([Block1l, Block2l, Block3l])
256 Handle = geompy.MakeGlueFaces(CompLB, 1e-5)
257 id_handle = geompy.addToStudy(Handle, "Handle")
258
259 Block1h = geompy.GetBlockNearPoint(Handle, p_45_110_1)
260 id_block1h = geompy.addToStudyInFather(Handle, Block1h, "Block 1 of Handle")
261
262 Block2h = geompy.GetBlockNearPoint(Handle, p_65_110_1)
263 id_block2h = geompy.addToStudyInFather(Handle, Block2h, "Block 2 of Handle")
264
265 Face11h = geompy.GetFaceByNormale(Block1h, vx)
266 id_face11h = geompy.addToStudyInFather(Block1h, Face11h, "Face 1")
267
268 Face12h = geompy.GetOppositeFace(Block1h, Face11h)
269 id_face12h = geompy.addToStudyInFather(Block1h, Face12h, "Face 2")
270
271 Face21h = geompy.GetFaceByNormale(Block2h, vx)
272 id_face21h = geompy.addToStudyInFather(Block2h, Face21h, "Face 1")
273
274 Face22h = geompy.GetOppositeFace(Block2h, Face21h)
275 id_face22h = geompy.addToStudyInFather(Block2h, Face22h, "Face 2")
276
277 try:
278 Block3h = geompy.GetBlockByParts(Handle, [Face11h, Face21h])
279 except RuntimeError:
280 try:
281 Block3h = geompy.GetBlockByParts(Handle, [Face11h, Face22h])
282 except RuntimeError:
283 try:
284 Block3h = geompy.GetBlockByParts(Handle, [Face12h, Face21h])
285 except RuntimeError:
286 try:
287 Block3h = geompy.GetBlockByParts(Handle, [Face12h, Face22h])
288 except RuntimeError:
289 print("ERROR: BlocksOp.GetBlockByParts() failed : ", geompy.BlocksOp.GetErrorCode())
290 else:
291 id_block3h = geompy.addToStudyInFather(Handle, Block3h, "Block 3 of Handle")
292
293
294
295 CompALL = geompy.MakeCompound([Glue1234, Block5, Mirror1, Handle, Gear])
296 Spanner = geompy.MakeGlueFaces(CompALL, 1e-5)
297 id_glueALL = geompy.addToStudy(Spanner, "The Spanner")

298
299
300
301 isCompOfBlocks6 = geompy.CheckCompoundOfBlocks(Spanner)
302 if isCompOfBlocks6 == 0:
303 print("Spanner is not a compound of hexahedral solids")
304 (NonBlocks, NonQuads) = geompy.GetNonBlocks(Spanner)
305 if NonBlocks is not None:
306 geompy.addToStudyInFather(Spanner, NonBlocks, "Group of non-hexahedral solids")
307 if NonQuads is not None:
308 geompy.addToStudyInFather(Spanner, NonQuads, "Group of non-quadrangular faces")
309 else:
310 print("Spanner is a compound of hexahedral solids")

311
312 if isBlocksTest == 1:
313
314 print("##################### Test More #####################")
315
316
317
318 Face42_sp = geompy.GetFaceByEdges(Spanner, Edge41, Edge42)
319 id_face42_sp = geompy.addToStudyInFather(Spanner, Face42_sp, "Face 4_2")
320
321 Blocks_f4_sp = geompy.GetBlocksByParts(Spanner, [Face42_sp])
322
323 isMRot2D = 0
324
325 for aBlock in Blocks_f4_sp:
326 name = geompy.SubShapeName(aBlock, Spanner)
327 Id_block = geompy.addToStudyInFather(Spanner, aBlock, name)
328
329 f42_sp_ind = geompy.LocalOp.GetSubShapeIndex(aBlock, Face42_sp)
330
331 Face_5_horiz = geompy.GetFaceByNormale(aBlock, vz)
332 f_5_horiz_ind = geompy.LocalOp.GetSubShapeIndex(aBlock, Face_5_horiz)
333
334 MRot = None
335 is2Dok = True
336 try:
337 MRot = geompy.MakeMultiTransformation2D(aBlock, f42_sp_ind, 0, 3, f_5_horiz_ind, 0, 5)
338 except:
339 is2Dok = False
340 if is2Dok and MRot is not None:
341 isMRot2D = 1
342 p_z100 = geompy.MakeVertex(0., 0., 100.)
343 MRot_tr = geompy.MakeTranslationTwoPoints(MRot, p0, p_z100)
344 id_MRot_tr = geompy.addToStudy(MRot_tr, "Multi-rotated block 5")
345
346 if isMRot2D == 0:
347 print("2D Multi Transformation failed")
348
349
350
351 p_20_0_tr = geompy.MakeTranslationTwoPoints(p_20_0 , p0, p_60_150_0)
352 p_20_0_r_tr = geompy.MakeTranslationTwoPoints(p_20_0_r, p0, p_60_150_0)
353 p_40_0_tr = geompy.MakeTranslationTwoPoints(p_40_0 , p0, p_60_150_0)
354 p_40_0_r_tr = geompy.MakeTranslationTwoPoints(p_40_0_r, p0, p_60_150_0)
355
356 Face_g_1 = geompy.GetFaceByPoints(Gear, p_20_0_tr, p_20_0_r_tr, p_40_0_tr, p_40_0_r_tr)
357 id_face_g_1 = geompy.addToStudyInFather(Gear, Face_g_1, "Face of Gear by four points")
358
359 edgesNb = geompy.ShapesOp.NumberOfEdges(Face_g_1)
360 print("Face of Gear has ", edgesNb, " edges")
361
362 Face_g_1_tr = geompy.MakeTranslationTwoPoints(Face_g_1, p0, pth)
363 id_face_g_1_tr = geompy.addToStudyInFather(Gear, Face_g_1_tr, "Face of Gear by four points, translated")
364
365
366
367 Block_new = geompy.MakeHexa2Faces(Face_g_1, Face_g_1_tr)
368 id_block_new = geompy.addToStudy(Block_new, "Block New")
369
370 if isMeshTest == 1 and smesh is not None:
371
372 print("##################### Build Mesh #####################")
373
374
375 # ---- add a middle block of spanner handle in study
376
377 p_45_0_1 = geompy.MakeVertex(45., 0., 1.)
378 BlockMh = geompy.GetBlockNearPoint(Spanner, p_45_0_1)
379 id_blockMh = geompy.addToStudyInFather(Spanner, BlockMh, "Middle Block of Spanner Handle")
380
381 # ---- add the top face of the middle block in study
382
383 FaceTop = geompy.GetFaceByNormale(BlockMh, vz)
384 id_facetop = geompy.addToStudyInFather(BlockMh, FaceTop, "Top Face")
385
386 # ---- add long edges of the top face in study
387
388 FaceTop_edges = geompy.SubShapeAllSortedCentres(FaceTop, geompy.ShapeType["EDGE"])
389 Edge1 = FaceTop_edges[0]
390 Edge2 = FaceTop_edges[3]
391 Id_Edge1 = geompy.addToStudyInFather(FaceTop, Edge1, "Edge 1")
392 Id_Edge2 = geompy.addToStudyInFather(FaceTop, Edge2, "Edge 2")
393
394 print("-------------------------- Algorithm and Hypothesis")
395
396 print("---- Init a Mesh with the Spanner")
397
398 mesh = smesh.Mesh(Spanner, "Meshed Spanner")
399
400 print("-------------------------- add hypothesis to Spanner")
401
402 print("-------------------------- NumberOfSegments")
403 algoReg = mesh.Segment()
404 listHyp = algoReg.GetCompatibleHypothesis()
405 for hyp in listHyp:
406 print(hyp)
407 print(algoReg.GetName())
408 print(algoReg.GetId())
409 algoReg.SetName("Regular_1D")
410
411
412 hypNbSeg3 = algoReg.NumberOfSegments(3)
413 print(hypNbSeg3.GetName())
414 print(hypNbSeg3.GetId())
415 print(hypNbSeg3.GetNumberOfSegments())
416 smesh.SetName(hypNbSeg3, "NumberOfSegments_3")
417
418 print("-------------------------- Quadrangle_2D")
419
420 algoQuad = mesh.Quadrangle()
421 listHyp = algoQuad.GetCompatibleHypothesis()
422 for hyp in listHyp:
423 print(hyp)
424 print(algoQuad.GetName())
425 print(algoQuad.GetId())
426 algoQuad.SetName("Quadrangle_2D")
427
428 print("-------------------------- add hypothesis to the Middle Block")
429
430 print("-------------------------- LocalLength")
431 algoRegMb = mesh.Segment(BlockMh)
432 hypLen1 = algoRegMb.LocalLength(10)
433 print(hypLen1.GetName())
434 print(hypLen1.GetId())
435 print(hypLen1.GetLength())
436 smesh.SetName(hypLen1, "Local_Length_10")
437
438 print("-------------------------- add hypothesis to the long edges of the Top Face of the Middle Block")
439
440 algoRegE1 = mesh.Segment(Edge1)
441 hypPropE1 = algoRegE1.Propagation()
442 print(hypPropE1.GetName())
443 print(hypPropE1.GetId())
444 smesh.SetName(hypPropE1, "Propagation hypothesis")
445 smesh.SetName(algoRegE1.GetSubMesh(), "SubMesh Edge 1 of Top Face")
446
447 algoRegE2 = mesh.Segment(Edge2)
448 hypPropE2 = algoRegE2.Propagation()
449 print(hypPropE2.GetName())
450 print(hypPropE2.GetId())
451 smesh.SetName(hypPropE2, "Propagation hypothesis")
452 smesh.SetName(algoRegE2.GetSubMesh(), "SubMesh Edge 2 of Top Face")
453
454 print("-------------------------- compute the mesh")
455 mesh.Compute()
456
457 print("Information about the Mesh:")
458 print("Number of nodes : ", mesh.NbNodes())
459 print("Number of edges : ", mesh.NbEdges())
460 print("Number of faces : ", mesh.NbFaces())
461 print("Number of triangles : ", mesh.NbTriangles())
462 print("Number of quadrangles : ", mesh.NbQuadrangles())
463 print("Number of volumes : ", mesh.NbVolumes())
464 print("Number of tetrahedrons: ", mesh.NbTetras())
465
466 return Spanner