1 # -*- coding: iso-8859-1 -*-
7 from salome.geom import geomBuilder
11 def demidisk(study, r1, a1, roty=0, solid_thickness=0):
12 if solid_thickness < 1e-7:
17 geompy = geomBuilder.New(study)
19 O = geompy.MakeVertex(0, 0, 0)
20 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
21 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
22 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
26 v0 = geompy.MakeVertex(0, 0, 0)
27 v[0] = geompy.MakeVertex(0, r1/2.0, 0)
28 v[1] = geompy.MakeVertex(0, r1, 0)
29 l[1] = geompy.MakeLineTwoPnt(v[0], v[1])
30 l[2] = geompy.MakeRotation(l[1], OX, a1*math.pi/180.0)
31 v[4] = geompy.MakeRotation(v[0], OX, a1*math.pi/180.0)
32 v[6] = geompy.MakeRotation(v[1], OX, a1*math.pi/180.0)
34 v[2] = geompy.MakeVertex(0, -r1/2.0, 0)
35 v[3] = geompy.MakeVertex(0, -r1, 0)
36 l[3] = geompy.MakeLineTwoPnt(v[2], v[3])
37 l[4] = geompy.MakeRotation(l[3], OX, -a1*math.pi/180.0)
38 v[5] = geompy.MakeRotation(v[2], OX, -a1*math.pi/180.0)
39 v[7] = geompy.MakeRotation(v[3], OX, -a1*math.pi/180.0)
41 l[5] = geompy.MakeLineTwoPnt(v[4], v[5])
42 l[6] = geompy.MakeLineTwoPnt(v[0], v[4])
43 l[7] = geompy.MakeLineTwoPnt(v[2], v[5])
45 v7 = geompy.MakeVertex(0, 0, r1)
46 arc1 = geompy.MakeArc(v[1], v7, v[3])
47 l[0] = geompy.MakeLineTwoPnt(v[1], v[3])
48 face1 = geompy.MakeFaceWires([arc1, l[0]], 1)
49 part1 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
52 # Add some faces corresponding to the solid layer outside
56 v0 = geompy.MakeVertex(0, r1 + solid_thickness, 0)
57 v1 = geompy.MakeRotation(v0, OX, a1*math.pi/180.0)
58 v2 = geompy.MakeRotation(v0, OX, math.pi - (a1*math.pi/180.0))
59 v3 = geompy.MakeRotation(v0, OX, math.pi)
60 v.extend([v0,v1,v3,v2]) # The order is important for use in pointsProjetes
62 l0 = geompy.MakeLineTwoPnt(v[1], v0)
63 l2 = geompy.MakeRotation(l0, OX, a1*math.pi/180.0)
64 l3 = geompy.MakeRotation(l0, OX, math.pi - (a1*math.pi/180.0))
66 face2 = geompy.MakeRevolution(l0, OX, a1*math.pi/180.0)
67 face3 = geompy.MakeRevolution(l2, OX, math.pi - 2*a1*math.pi/180.0)
68 face4 = geompy.MakeRevolution(l3, OX, a1*math.pi/180.0)
69 # --- Compound of the "fluid part" of the divided disk and the additional faces
70 compound1 = geompy.MakeCompound([part1, face2, face3, face4])
72 part1 = geompy.MakeGlueEdges(compound1,1e-7)
75 vrot = [ geompy.MakeRotation(vert, OY, roty*math.pi/180.0) for vert in v ]
76 lrot = [ geompy.MakeRotation(lin, OY, roty*math.pi/180.0) for lin in l ]
77 arc = geompy.MakeRotation(arc1, OY, roty*math.pi/180.0)
78 part = geompy.MakeRotation(part1, OY, roty*math.pi/180.0)
79 return vrot, lrot, arc, part
81 return v, l, arc1, part1
83 def pointsProjetes(study, vref, face):
84 geompy = geomBuilder.New(study)
85 vface = geompy.ExtractShapes(face, geompy.ShapeType["VERTEX"], True)
86 vord = range(len(vref))
87 plan = geompy.MakePlaneThreePnt(vref[0], vref[1], vref[-1], 10000)
88 vproj = [ geompy.MakeProjection(vert, plan) for vert in vface ]
89 for i,v in enumerate(vproj):
90 dist = [ (geompy.MinDistance(v, vr), j) for j,vr in enumerate(vref) ]
92 if dist[0][0] < 1.e-3:
93 vord[dist[0][1]] = vface[i]
96 def arcsProjetes(study, vf, face):
97 geompy = geomBuilder.New(study)
98 lface = geompy.ExtractShapes(face, geompy.ShapeType["EDGE"], True)
100 ends = [vf[1], vf[6], vf[7], vf[3]]
103 pts = geompy.ExtractShapes(lf, geompy.ShapeType["VERTEX"], True)
104 if (((geompy.MinDistance(pts[0], ends[i]) < 0.001) and (geompy.MinDistance(pts[1], ends[i+1]) < 0.001)) or
105 ((geompy.MinDistance(pts[1], ends[i]) < 0.001) and (geompy.MinDistance(pts[0], ends[i+1]) < 0.001))):
112 def build_shape(study, r1, r2, h1, h2, solid_thickness=0):
113 """ Builds the final shape """
115 if solid_thickness < 1e-7:
120 geompy = geomBuilder.New(study)
122 O = geompy.MakeVertex(0, 0, 0)
123 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
124 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
125 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
129 ratio = float(r2)/float(r1)
130 if ratio > (1.0 -seuilmax):
131 a1 = 45.0*(1.0 -ratio)/seuilmax
133 # --- Creation of the jonction faces
134 [faci, sect45, arc1, l1, lord90, lord45, edges, arcextru] = jonction(study, r1, r2,\
137 # The same code is executed again with different external radiuses in order
138 # to get the needed faces and edges to build the solid layer of the pipe
139 [faci_ext, sect45_ext, arc1_ext, l1_ext, \
140 lord90_ext, lord45_ext, edges_ext, arcextru_ext] = jonction(study, r1 + solid_thickness, r2 + solid_thickness,\
142 faces_jonction_ext = []
143 for i,l in enumerate(lord90):
144 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord90[i],lord90_ext[i]))
145 for i in [1, 3, 6, 7]:
146 faces_jonction_ext.append(geompy.MakeQuad2Edges(edges[i],edges_ext[i]))
147 for i,l in enumerate(lord45):
148 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord45[i],lord45_ext[i]))
150 # --- extrusion droite des faces de jonction, pour reconstituer les demi cylindres
152 sect45 = geompy.MakeCompound([sect45]+faces_jonction_ext[-3:])
153 sect45 = geompy.MakeGlueEdges(sect45, 1e-7)
155 extru1 = geompy.MakePrismVecH(sect45, OX, h1+10)
157 faces_coupe = faci[5:]
159 faces_coupe = faci[5:]+faces_jonction_ext[:3]
160 base2 = geompy.MakePartition(faces_coupe, [], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
161 extru2 = geompy.MakePrismVecH(base2, OZ, h2)
163 # --- partition et coupe
166 demiDisque = geompy.MakeFaceWires([arc1_ext, l1_ext[0]], 1)
168 demiDisque = geompy.MakeFaceWires([arc1, l1[0]], 1)
169 demiCylindre = geompy.MakePrismVecH(demiDisque, OX, h1)
171 box = geompy.MakeBox(0, -2*(r1+h1), -2*(r1+h1), 2*(r1+h1), 2*(r1+h1), 2*(r1+h1))
172 rot = geompy.MakeRotation(box, OY, 45*math.pi/180.0)
174 # NOTE: The following Cut takes almost half of the total execution time
175 garder = geompy.MakeCutList(demiCylindre, [extru2, rot], True)
177 faces_coupe = faci[:5]
179 faces_coupe.extend(faces_jonction_ext[-7:])
180 raccord = geompy.MakePartition([garder], faces_coupe + [arcextru], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
181 assemblage = geompy.MakeCompound([raccord, extru1, extru2])
182 assemblage = geompy.MakeGlueFaces(assemblage, 1e-7)
184 box = geompy.MakeBox(-1, -(r1+r2+2*solid_thickness), -1, h1, r1+r2+2*solid_thickness, h2)
186 # NOTE: This operation takes about 1/4 of the total execution time
187 final = geompy.MakeCommonList([box, assemblage], True)
189 # --- Partie inférieure
191 v3, l3, arc3, part3 = demidisk(study, r1, a1, 180.0, solid_thickness)
192 extru3 = geompy.MakePrismVecH(part3, OX, h1)
196 compound = geompy.MakeCompound([final, extru3])
197 plane = geompy.MakePlane(O,OX,2000)
198 compound_mirrored = geompy.MakeMirrorByPlane(compound, plane)
199 final = geompy.MakeCompound([compound, compound_mirrored])
204 def jonction(study, r1, r2, h1, h2, a1):
205 """ Builds the jonction faces and
206 returns what is needed to build the whole pipe
208 geompy = geomBuilder.New(study)
210 O = geompy.MakeVertex(0, 0, 0)
211 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
212 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
213 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
215 # --- sections droites des deux demi cylindres avec le partionnement
216 v1, l1, arc1, part1 = demidisk(study, r1, a1, 0.)
217 v2, l2, arc2, part2 = demidisk(study, r2, a1, 90.0)
219 # --- extrusion des sections --> demi cylindres de travail, pour en extraire les sections utilisées au niveau du Té
220 # et enveloppe cylindrique du cylindre principal
222 demicyl1 = geompy.MakePrismVecH(part1, OX, h1)
223 demicyl2 = geompy.MakePrismVecH(part2, OZ, h2)
224 arcextru = geompy.MakePrismVecH(arc1, OX, h1)
226 # --- plan de coupe à 45° sur le cylindre principal,
227 # section à 45° du cylndre principal,
228 # section du cylindre secondaire par l'enveloppe cylindrique du cylindre principal
230 plan1 = geompy.MakePlane(O, OX, 4*r1)
231 planr = geompy.MakeRotation(plan1, OY, 45*math.pi/180.0)
233 sect45 = geompy.MakeCommonList([demicyl1, planr], True)
234 sect90 = geompy.MakeCommonList([demicyl2, arcextru], True)
236 # --- liste ordonnée des points projetés sur les deux sections
238 vord45 = pointsProjetes(study, v1, sect45)
239 vord90 = pointsProjetes(study, v2, sect90)
241 # --- identification des projections des trois arcs de cercle, sur les deux sections.
243 lord45 = arcsProjetes(study, vord45, sect45)
244 lord90 = arcsProjetes(study, vord90, sect90)
246 # --- abaissement des quatre points centraux de la section du cylindre secondaire
249 for i in (0, 2, 4, 5):
250 vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz, True)
251 geompy.addToStudyInFather(sect90, vord90[i], 'vm%d'%i)
253 # --- création des deux arêtes curvilignes sur l'enveloppe cylindrique du cylindre principal, à la jonction
255 curv = [None for i in range(4)] # liaisons entre les points 1, 3, 6 et 7 des 2 sections
257 curv[0] = geompy.MakeArcCenter(O, vord90[1] , vord45[1], False)
258 curv[1] = geompy.MakeArcCenter(O, vord90[3] , vord45[3], False)
260 lipts = ((6, 6, 4), (7, 7, 5))
261 for i, ipts in enumerate(lipts):
266 plan = geompy.MakePlaneThreePnt(p0, p1, p2, 10000)
267 #geompy.addToStudy(plan, "plan%d"%i)
268 section = geompy.MakeSection(plan, arcextru, True)
269 secpart = geompy.MakePartition([section], [sect45, sect90], [], [], geompy.ShapeType["EDGE"], 0, [], 0, True)
270 geompy.addToStudy(secpart, "secpart%d"%i)
271 lsec = geompy.ExtractShapes(secpart, geompy.ShapeType["EDGE"], True)
274 pts = geompy.ExtractShapes(l, geompy.ShapeType["VERTEX"], True)
275 if (((geompy.MinDistance(pts[0], p0) < 0.001) and (geompy.MinDistance(pts[1], p1) < 0.001)) or
276 ((geompy.MinDistance(pts[1], p0) < 0.001) and (geompy.MinDistance(pts[0], p1) < 0.001))):
281 # --- creation des arêtes droites manquantes, des faces et volumes pour les quatre volumes de la jonction
283 edges = [None for i in range(8)]
284 edges[0] = geompy.MakeLineTwoPnt(vord45[0], vord90[0])
286 edges[2] = geompy.MakeLineTwoPnt(vord45[2], vord90[2])
288 edges[4] = geompy.MakeLineTwoPnt(vord45[4], vord90[4])
289 edges[5] = geompy.MakeLineTwoPnt(vord45[5], vord90[5])
293 ed45 = [None for i in range(8)]
294 ed45[0] = geompy.MakeLineTwoPnt(vord45[0], vord45[2])
295 ed45[1] = geompy.MakeLineTwoPnt(vord45[0], vord45[1])
296 ed45[2] = geompy.MakeLineTwoPnt(vord45[4], vord45[6])
297 ed45[3] = geompy.MakeLineTwoPnt(vord45[2], vord45[3])
298 ed45[4] = geompy.MakeLineTwoPnt(vord45[5], vord45[7])
299 ed45[5] = geompy.MakeLineTwoPnt(vord45[4], vord45[5])
300 ed45[6] = geompy.MakeLineTwoPnt(vord45[0], vord45[4])
301 ed45[7] = geompy.MakeLineTwoPnt(vord45[2], vord45[5])
303 ed90 = [None for i in range(8)]
304 ed90[0] = geompy.MakeLineTwoPnt(vord90[0], vord90[2])
305 ed90[1] = geompy.MakeLineTwoPnt(vord90[0], vord90[1])
306 ed90[2] = geompy.MakeLineTwoPnt(vord90[4], vord90[6])
307 ed90[3] = geompy.MakeLineTwoPnt(vord90[2], vord90[3])
308 ed90[4] = geompy.MakeLineTwoPnt(vord90[5], vord90[7])
309 ed90[5] = geompy.MakeLineTwoPnt(vord90[4], vord90[5])
310 ed90[6] = geompy.MakeLineTwoPnt(vord90[0], vord90[4])
311 ed90[7] = geompy.MakeLineTwoPnt(vord90[2], vord90[5])
314 faci.append(geompy.MakeFaceWires([ed45[6], edges[0], ed90[6], edges[4]], 0))
315 faci.append(geompy.MakeFaceWires([ed45[7], edges[2], ed90[7], edges[5]], 0))
316 faci.append(geompy.MakeFaceWires([ed45[2], edges[4], ed90[2], edges[6]], 0))
317 faci.append(geompy.MakeFaceWires([ed45[5], edges[4], ed90[5], edges[5]], 0))
318 faci.append(geompy.MakeFaceWires([ed45[4], edges[5], ed90[4], edges[7]], 0))
319 faci.append(geompy.MakeFaceWires([ed90[0], ed90[6], ed90[5], ed90[7]], 0))
320 faci.append(geompy.MakeFaceWires([ed90[1], ed90[6], ed90[2], lord90[0]], 0))
321 faci.append(geompy.MakeFaceWires([ed90[2], ed90[5], ed90[4], lord90[1]], 0))
322 faci.append(geompy.MakeFaceWires([ed90[3], ed90[7], ed90[4], lord90[2]], 0))
324 return faci, sect45, arc1, l1, lord90, lord45, edges, arcextru
326 if __name__=="__main__":
327 """For testing purpose"""
329 theStudy = salome.myStudy
330 geompy = geomBuilder.New(theStudy)
331 for r1 in [1, 100, 10000]:
332 for r2 in [0.75*r1, 0.3*r1, 0.1*r1]:
333 for thickness in [(r1-r2)/10.0, (r1-r2) /2.0, 0.75*(r1-r2)]:
336 res = build_shape(theStudy, r1, r2, h1, h2, thickness)
337 geompy.addToStudy(res, "res_%f_%f_%f"%(r1,r2, thickness))