1 # -*- coding: utf-8 -*-
7 from salome.geom import geomBuilder
14 def demidisk(study, r1, a1, roty=0, solid_thickness=0):
15 if solid_thickness < 1e-7:
20 #geompy = geomBuilder.New(study)
22 O = geompy.MakeVertex(0, 0, 0)
23 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
24 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
25 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
29 v0 = geompy.MakeVertex(0, 0, 0)
30 v[0] = geompy.MakeVertex(0, r1/2.0, 0)
31 v[1] = geompy.MakeVertex(0, r1, 0)
32 l[1] = geompy.MakeLineTwoPnt(v[0], v[1])
33 l[2] = geompy.MakeRotation(l[1], OX, a1*math.pi/180.0)
34 v[4] = geompy.MakeRotation(v[0], OX, a1*math.pi/180.0)
35 v[6] = geompy.MakeRotation(v[1], OX, a1*math.pi/180.0)
37 v[2] = geompy.MakeVertex(0, -r1/2.0, 0)
38 v[3] = geompy.MakeVertex(0, -r1, 0)
39 l[3] = geompy.MakeLineTwoPnt(v[2], v[3])
40 l[4] = geompy.MakeRotation(l[3], OX, -a1*math.pi/180.0)
41 v[5] = geompy.MakeRotation(v[2], OX, -a1*math.pi/180.0)
42 v[7] = geompy.MakeRotation(v[3], OX, -a1*math.pi/180.0)
44 l[5] = geompy.MakeLineTwoPnt(v[4], v[5])
45 l[6] = geompy.MakeLineTwoPnt(v[0], v[4])
46 l[7] = geompy.MakeLineTwoPnt(v[2], v[5])
48 v7 = geompy.MakeVertex(0, 0, r1)
49 arc1 = geompy.MakeArc(v[1], v7, v[3])
50 l[0] = geompy.MakeLineTwoPnt(v[1], v[3])
51 face1 = geompy.MakeFaceWires([arc1, l[0]], 1)
52 part1 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
55 # Add some faces corresponding to the solid layer outside
59 v0 = geompy.MakeVertex(0, r1 + solid_thickness, 0)
60 v1 = geompy.MakeRotation(v0, OX, a1*math.pi/180.0)
61 v2 = geompy.MakeRotation(v0, OX, math.pi - (a1*math.pi/180.0))
62 v3 = geompy.MakeRotation(v0, OX, math.pi)
63 v.extend([v0,v1,v3,v2]) # The order is important for use in pointsProjetes
65 l0 = geompy.MakeLineTwoPnt(v[1], v0)
66 l2 = geompy.MakeRotation(l0, OX, a1*math.pi/180.0)
67 l3 = geompy.MakeRotation(l0, OX, math.pi - (a1*math.pi/180.0))
69 face2 = geompy.MakeRevolution(l0, OX, a1*math.pi/180.0)
70 face3 = geompy.MakeRevolution(l2, OX, math.pi - 2*a1*math.pi/180.0)
71 face4 = geompy.MakeRevolution(l3, OX, a1*math.pi/180.0)
72 # --- Compound of the "fluid part" of the divided disk and the additional faces
73 compound1 = geompy.MakeCompound([part1, face2, face3, face4])
75 part1 = geompy.MakeGlueEdges(compound1,1e-7)
78 vrot = [ geompy.MakeRotation(vert, OY, roty*math.pi/180.0) for vert in v ]
79 lrot = [ geompy.MakeRotation(lin, OY, roty*math.pi/180.0) for lin in l ]
80 arc = geompy.MakeRotation(arc1, OY, roty*math.pi/180.0)
81 part = geompy.MakeRotation(part1, OY, roty*math.pi/180.0)
82 return vrot, lrot, arc, part
84 return v, l, arc1, part1
86 def pointsProjetes(study, vref, face):
87 #geompy = geomBuilder.New(study)
88 vface = geompy.ExtractShapes(face, geompy.ShapeType["VERTEX"], True)
89 vord = range(len(vref))
90 plan = geompy.MakePlaneThreePnt(vref[0], vref[1], vref[-1], 10000)
91 vproj = [ geompy.MakeProjection(vert, plan) for vert in vface ]
92 for i,v in enumerate(vproj):
93 dist = [ (geompy.MinDistance(v, vr), j) for j,vr in enumerate(vref) ]
95 if dist[0][0] < 1.e-3:
96 vord[dist[0][1]] = vface[i]
99 def arcsProjetes(study, vf, face):
100 #geompy = geomBuilder.New(study)
101 lface = geompy.ExtractShapes(face, geompy.ShapeType["EDGE"], True)
103 ends = [vf[1], vf[6], vf[7], vf[3]]
106 pts = geompy.ExtractShapes(lf, geompy.ShapeType["VERTEX"], True)
107 if (((geompy.MinDistance(pts[0], ends[i]) < 0.001) and (geompy.MinDistance(pts[1], ends[i+1]) < 0.001)) or
108 ((geompy.MinDistance(pts[1], ends[i]) < 0.001) and (geompy.MinDistance(pts[0], ends[i+1]) < 0.001))):
115 def build_shape(study, r1, r2, h1, h2, solid_thickness=0, progressBar=None ):
116 """ Builds the final shape """
118 if progressBar is not None:
120 print time.time() -time0
122 if solid_thickness < 1e-7:
128 geompy = geomBuilder.New(study)
130 O = geompy.MakeVertex(0, 0, 0)
131 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
132 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
133 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
137 ratio = float(r2)/float(r1)
138 if ratio > (1.0 -seuilmax):
139 a1 = 45.0*(1.0 -ratio)/seuilmax
141 # --- Creation of the jonction faces
142 [faci, sect45, arc1, l1, lord90, lord45, edges, arcextru] = jonction(study, r1, r2,\
144 if progressBar is not None:
145 progressBar.addSteps(2)
146 print time.time() -time0
149 # The same code is executed again with different external radiuses in order
150 # to get the needed faces and edges to build the solid layer of the pipe
151 [faci_ext, sect45_ext, arc1_ext, l1_ext, \
152 lord90_ext, lord45_ext, edges_ext, arcextru_ext] = jonction(study, r1 + solid_thickness, r2 + solid_thickness,\
154 faces_jonction_ext = []
155 for i,l in enumerate(lord90):
156 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord90[i],lord90_ext[i]))
157 for i in [1, 3, 6, 7]:
158 faces_jonction_ext.append(geompy.MakeQuad2Edges(edges[i],edges_ext[i]))
159 for i,l in enumerate(lord45):
160 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord45[i],lord45_ext[i]))
162 if progressBar is not None:
163 progressBar.addSteps(4)
164 print time.time() -time0
166 # --- extrusion droite des faces de jonction, pour reconstituer les demi cylindres
168 sect45 = geompy.MakeCompound([sect45]+faces_jonction_ext[-3:])
169 sect45 = geompy.MakeGlueEdges(sect45, 1e-7)
171 if progressBar is not None:
172 progressBar.addSteps(1)
173 print time.time() -time0
175 extru1 = geompy.MakePrismVecH(sect45, OX, h1+10)
177 faces_coupe = faci[5:]
179 faces_coupe = faci[5:]+faces_jonction_ext[:3]
180 base2 = geompy.MakePartition(faces_coupe, [], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
181 extru2 = geompy.MakePrismVecH(base2, OZ, h2)
183 if progressBar is not None:
184 progressBar.addSteps(1)
185 print time.time() -time0
187 # --- partition et coupe
190 demiDisque = geompy.MakeFaceWires([arc1_ext, l1_ext[0]], 1)
192 demiDisque = geompy.MakeFaceWires([arc1, l1[0]], 1)
193 demiCylindre = geompy.MakePrismVecH(demiDisque, OX, h1)
195 if progressBar is not None:
196 progressBar.addSteps(1)
197 print time.time() -time0
199 box = geompy.MakeBox(0, -2*(r1+h1), -2*(r1+h1), 2*(r1+h1), 2*(r1+h1), 2*(r1+h1))
200 rot = geompy.MakeRotation(box, OY, 45*math.pi/180.0)
202 # NOTE: The following Cut takes almost half of the total execution time
203 garder = geompy.MakeCutList(demiCylindre, [extru2, rot], True)
205 if progressBar is not None:
206 progressBar.addSteps(9)
207 print time.time() -time0
209 faces_coupe = faci[:5]
211 faces_coupe.extend(faces_jonction_ext[-7:])
212 raccord = geompy.MakePartition([garder], faces_coupe + [arcextru], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
213 assemblage = geompy.MakeCompound([raccord, extru1, extru2])
214 assemblage = geompy.MakeGlueFaces(assemblage, 1e-7)
216 if progressBar is not None:
217 progressBar.addSteps(3)
218 print time.time() -time0
220 box = geompy.MakeBox(-1, -(r1+r2+2*solid_thickness), -1, h1, r1+r2+2*solid_thickness, h2)
222 # NOTE: This operation takes about 1/4 of the total execution time
223 final = geompy.MakeCommonList([box, assemblage], True)
225 if progressBar is not None:
226 progressBar.addSteps(5)
227 print time.time() -time0
229 # --- Partie inférieure
231 v3, l3, arc3, part3 = demidisk(study, r1, a1, 180.0, solid_thickness)
232 extru3 = geompy.MakePrismVecH(part3, OX, h1)
236 compound = geompy.MakeCompound([final, extru3])
237 plane = geompy.MakePlane(O,OX,2000)
238 compound_mirrored = geompy.MakeMirrorByPlane(compound, plane)
239 compound_total = geompy.MakeCompound([compound, compound_mirrored])
240 final = geompy.MakeGlueFaces(compound_total, 1e-07)
242 if progressBar is not None:
243 progressBar.addSteps(1)
244 print time.time() -time0
249 def jonction(study, r1, r2, h1, h2, a1):
250 """ Builds the jonction faces and
251 returns what is needed to build the whole pipe
253 #geompy = geomBuilder.New(study)
255 O = geompy.MakeVertex(0, 0, 0)
256 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
257 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
258 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
260 # --- sections droites des deux demi cylindres avec le partionnement
261 v1, l1, arc1, part1 = demidisk(study, r1, a1, 0.)
262 v2, l2, arc2, part2 = demidisk(study, r2, a1, 90.0)
264 # --- extrusion des sections --> demi cylindres de travail, pour en extraire les sections utilisées au niveau du Té
265 # et enveloppe cylindrique du cylindre principal
267 demicyl1 = geompy.MakePrismVecH(part1, OX, h1)
268 demicyl2 = geompy.MakePrismVecH(part2, OZ, h2)
269 arcextru = geompy.MakePrismVecH(arc1, OX, h1)
271 # --- plan de coupe à 45° sur le cylindre principal,
272 # section à 45° du cylndre principal,
273 # section du cylindre secondaire par l'enveloppe cylindrique du cylindre principal
275 plan1 = geompy.MakePlane(O, OX, 4*r1)
276 planr = geompy.MakeRotation(plan1, OY, 45*math.pi/180.0)
278 sect45 = geompy.MakeCommonList([demicyl1, planr], True)
279 sect90 = geompy.MakeCommonList([demicyl2, arcextru], True)
280 #geompy.addToStudy(sect90, "sect90")
282 # --- liste ordonnée des points projetés sur les deux sections
284 vord45 = pointsProjetes(study, v1, sect45)
285 vord90 = pointsProjetes(study, v2, sect90)
287 # --- identification des projections des trois arcs de cercle, sur les deux sections.
289 lord45 = arcsProjetes(study, vord45, sect45)
290 lord90 = arcsProjetes(study, vord90, sect90)
292 # --- abaissement des quatre points centraux de la section du cylindre secondaire
295 for i in (0, 2, 4, 5):
296 vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz, True)
297 #geompy.addToStudyInFather(sect90, vord90[i], 'vm%d'%i)
299 # --- création des deux arêtes curvilignes sur l'enveloppe cylindrique du cylindre principal, à la jonction
301 curv = [None for i in range(4)] # liaisons entre les points 1, 3, 6 et 7 des 2 sections
303 curv[0] = geompy.MakeArcCenter(O, vord90[1] , vord45[1], False)
304 curv[1] = geompy.MakeArcCenter(O, vord90[3] , vord45[3], False)
306 lipts = ((6, 6, 4), (7, 7, 5))
307 for i, ipts in enumerate(lipts):
312 plan = geompy.MakePlaneThreePnt(p0, p1, p2, 10000)
313 #geompy.addToStudy(plan, "plan%d"%i)
314 section = geompy.MakeSection(plan, arcextru, True)
315 secpart = geompy.MakePartition([section], [sect45, sect90], [], [], geompy.ShapeType["EDGE"], 0, [], 0, True)
316 #geompy.addToStudy(secpart, "secpart%d"%i)
317 lsec = geompy.ExtractShapes(secpart, geompy.ShapeType["EDGE"], True)
320 pts = geompy.ExtractShapes(l, geompy.ShapeType["VERTEX"], True)
321 if (((geompy.MinDistance(pts[0], p0) < 0.001) and (geompy.MinDistance(pts[1], p1) < 0.001)) or
322 ((geompy.MinDistance(pts[1], p0) < 0.001) and (geompy.MinDistance(pts[0], p1) < 0.001))):
324 #print "curv_%d OK"%i
327 # --- creation des arêtes droites manquantes, des faces et volumes pour les quatre volumes de la jonction
329 edges = [None for i in range(8)]
330 edges[0] = geompy.MakeLineTwoPnt(vord45[0], vord90[0])
332 edges[2] = geompy.MakeLineTwoPnt(vord45[2], vord90[2])
334 edges[4] = geompy.MakeLineTwoPnt(vord45[4], vord90[4])
335 edges[5] = geompy.MakeLineTwoPnt(vord45[5], vord90[5])
339 ed45 = [None for i in range(8)]
340 ed45[0] = geompy.MakeLineTwoPnt(vord45[0], vord45[2])
341 ed45[1] = geompy.MakeLineTwoPnt(vord45[0], vord45[1])
342 ed45[2] = geompy.MakeLineTwoPnt(vord45[4], vord45[6])
343 ed45[3] = geompy.MakeLineTwoPnt(vord45[2], vord45[3])
344 ed45[4] = geompy.MakeLineTwoPnt(vord45[5], vord45[7])
345 ed45[5] = geompy.MakeLineTwoPnt(vord45[4], vord45[5])
346 ed45[6] = geompy.MakeLineTwoPnt(vord45[0], vord45[4])
347 ed45[7] = geompy.MakeLineTwoPnt(vord45[2], vord45[5])
349 ed90 = [None for i in range(8)]
350 ed90[0] = geompy.MakeLineTwoPnt(vord90[0], vord90[2])
351 ed90[1] = geompy.MakeLineTwoPnt(vord90[0], vord90[1])
352 ed90[2] = geompy.MakeLineTwoPnt(vord90[4], vord90[6])
353 ed90[3] = geompy.MakeLineTwoPnt(vord90[2], vord90[3])
354 ed90[4] = geompy.MakeLineTwoPnt(vord90[5], vord90[7])
355 ed90[5] = geompy.MakeLineTwoPnt(vord90[4], vord90[5])
356 ed90[6] = geompy.MakeLineTwoPnt(vord90[0], vord90[4])
357 ed90[7] = geompy.MakeLineTwoPnt(vord90[2], vord90[5])
360 faci.append(geompy.MakeFaceWires([ed45[6], edges[0], ed90[6], edges[4]], 0))
361 faci.append(geompy.MakeFaceWires([ed45[7], edges[2], ed90[7], edges[5]], 0))
362 faci.append(geompy.MakeFaceWires([ed45[2], edges[4], ed90[2], edges[6]], 0))
363 faci.append(geompy.MakeFaceWires([ed45[5], edges[4], ed90[5], edges[5]], 0))
364 faci.append(geompy.MakeFaceWires([ed45[4], edges[5], ed90[4], edges[7]], 0))
365 faci.append(geompy.MakeFaceWires([ed90[0], ed90[6], ed90[5], ed90[7]], 0))
366 faci.append(geompy.MakeFaceWires([ed90[1], ed90[6], ed90[2], lord90[0]], 0))
367 faci.append(geompy.MakeFaceWires([ed90[2], ed90[5], ed90[4], lord90[1]], 0))
368 faci.append(geompy.MakeFaceWires([ed90[3], ed90[7], ed90[4], lord90[2]], 0))
370 return faci, sect45, arc1, l1, lord90, lord45, edges, arcextru
372 def test_t_shape_builder():
373 """For testing purpose"""
375 theStudy = salome.myStudy
376 geompy = geomBuilder.New(theStudy)
377 for r1 in [1., 100.]:
378 for r2 in [0.9*r1, 0.5*r1, 0.1*r1, 0.05*r1]:
379 for thickness in [r1/100., r1/10., r1/2.]:
380 print r1, r2, thickness
384 res = build_shape(theStudy, r1, r2, h1, h2, thickness)
385 geompy.addToStudy(res, "res_%f_%f_%f"%(r1,r2, thickness))
387 print "problem with res_%f_%f_%f"%(r1,r2, thickness)
389 if __name__=="__main__":
390 """For testing purpose"""
391 test_t_shape_builder()