1 # -*- coding: iso-8859-1 -*-
7 from salome.geom import geomBuilder
12 def demidisk(study, r1, a1, roty=0):
13 geompy = geomBuilder.New(study)
15 O = geompy.MakeVertex(0, 0, 0)
16 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
17 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
18 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
22 v0 = geompy.MakeVertex(0, 0, 0)
23 v[0] = geompy.MakeVertex(0, r1/2.0, 0)
24 v[1] = geompy.MakeVertex(0, r1, 0)
25 l[1] = geompy.MakeLineTwoPnt(v[0], v[1])
26 l[2] = geompy.MakeRotation(l[1], OX, a1*math.pi/180.0)
27 v[4] = geompy.MakeRotation(v[0], OX, a1*math.pi/180.0)
28 v[6] = geompy.MakeRotation(v[1], OX, a1*math.pi/180.0)
30 v[2] = geompy.MakeVertex(0, -r1/2.0, 0)
31 v[3] = geompy.MakeVertex(0, -r1, 0)
32 l[3] = geompy.MakeLineTwoPnt(v[2], v[3])
33 l[4] = geompy.MakeRotation(l[3], OX, -a1*math.pi/180.0)
34 v[5] = geompy.MakeRotation(v[2], OX, -a1*math.pi/180.0)
35 v[7] = geompy.MakeRotation(v[3], OX, -a1*math.pi/180.0)
37 l[5] = geompy.MakeLineTwoPnt(v[4], v[5])
38 l[6] = geompy.MakeLineTwoPnt(v[0], v[4])
39 l[7] = geompy.MakeLineTwoPnt(v[2], v[5])
41 v7 = geompy.MakeVertex(0, 0, r1)
42 arc1 = geompy.MakeArc(v[1], v7, v[3])
43 l[0] = geompy.MakeLineTwoPnt(v[1], v[3])
44 face1 = geompy.MakeFaceWires([arc1, l[0]], 1)
45 part1 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
48 vrot = [ geompy.MakeRotation(vert, OY, roty*math.pi/180.0) for vert in v ]
49 lrot = [ geompy.MakeRotation(lin, OY, roty*math.pi/180.0) for lin in l ]
50 arc = geompy.MakeRotation(arc1, OY, roty*math.pi/180.0)
51 part = geompy.MakeRotation(part1, OY, roty*math.pi/180.0)
52 return vrot, lrot, arc, part
54 return v, l, arc1, part1
56 def pointsProjetes(study, vref, face):
57 geompy = geomBuilder.New(study)
58 vface = geompy.ExtractShapes(face, geompy.ShapeType["VERTEX"], True)
59 vord = range(len(vref))
60 plan = geompy.MakePlaneThreePnt(vref[0], vref[1], vref[-1], 10000)
61 vproj = [ geompy.MakeProjection(vert, plan) for vert in vface ]
62 for i,v in enumerate(vproj):
63 dist = [ (geompy.MinDistance(v, vr), j) for j,vr in enumerate(vref) ]
66 if dist[0][0] < 1.e-3:
67 vord[dist[0][1]] = vface[i]
70 def arcsProjetes(study, vf, face):
71 geompy = geomBuilder.New(study)
72 lface = geompy.ExtractShapes(face, geompy.ShapeType["EDGE"], True)
74 ends = [vf[1], vf[6], vf[7], vf[3]]
77 pts = geompy.ExtractShapes(lf, geompy.ShapeType["VERTEX"], True)
78 if (((geompy.MinDistance(pts[0], ends[i]) < 0.001) and (geompy.MinDistance(pts[1], ends[i+1]) < 0.001)) or
79 ((geompy.MinDistance(pts[1], ends[i]) < 0.001) and (geompy.MinDistance(pts[0], ends[i+1]) < 0.001))):
86 def build_shape(study, r1, r2, h1, h2):
87 geompy = geomBuilder.New(study)
89 O = geompy.MakeVertex(0, 0, 0)
90 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
91 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
92 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
96 ratio = float(r2)/float(r1)
97 if ratio > (1.0 -seuilmax):
98 a1 = 45.0*(1.0 -ratio)/seuilmax
101 # --- sections droites des deux demi cylindres avec le partionnement
103 v1, l1, arc1, part1 = demidisk(study, r1, a1)
104 v2, l2, arc2, part2 = demidisk(study, r2, a1, 90.0)
106 # --- extrusion des sections --> demi cylindres de travail, pour en extraire les sections utilisées au niveau du Té
107 # et enveloppe cylindrique du cylindre principal
109 demicyl1 = geompy.MakePrismVecH(part1, OX, h1)
110 demicyl2 = geompy.MakePrismVecH(part2, OZ, h2)
111 arcextru = geompy.MakePrismVecH(arc1, OX, h1)
113 # --- plan de coupe à 45° sur le cylindre principal,
114 # section à 45° du cylndre principal,
115 # section du cylindre secondaire par l'enveloppe cylindique du cylindre principal
117 plan1 = geompy.MakePlane(O, OX, 4*r1)
118 planr = geompy.MakeRotation(plan1, OY, 45*math.pi/180.0)
119 geompy.addToStudy(planr, 'planr')
121 sect45 = geompy.MakeCommonList([demicyl1, planr], True)
122 geompy.addToStudy(sect45, 'sect45')
124 sect90 = geompy.MakeCommonList([demicyl2, arcextru], True)
125 geompy.addToStudy(sect90, 'sect90')
127 # --- liste ordonnée des points projetés sur les deux sections
129 vord45 = pointsProjetes(study, v1, sect45)
130 vord90 = pointsProjetes(study, v2, sect90)
131 for i,v in enumerate(vord45):
132 geompy.addToStudyInFather(sect45, v, 'v%d'%i)
133 for i,v in enumerate(vord90):
134 geompy.addToStudyInFather(sect90, v, 'v%d'%i)
136 # --- identification des projections des trois arcs de cercle, sur les deux sections.
138 lord45 = arcsProjetes(study, vord45, sect45)
139 lord90 = arcsProjetes(study, vord90, sect90)
140 for i,l in enumerate(lord45):
141 geompy.addToStudyInFather(sect45, l, 'l%d'%i)
142 for i,l in enumerate(lord90):
143 geompy.addToStudyInFather(sect90, l, 'l%d'%i)
145 # --- abaissement des quatre points centraux de la section du cylindre secondaire
148 for i in (0, 2, 4, 5):
149 vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz, True)
150 geompy.addToStudyInFather(sect90, vord90[i], 'vm%d'%i)
152 # --- création des deux arêtes curvilignes sur l'enveloppe cylindrique du cylindre principal, à la jonction
154 curv = [None for i in range(4)] # liaisons entre les points 1, 3, 6 et 7 des 2 sections
156 curv[0] = geompy.MakeArcCenter(O, vord90[1] , vord45[1], False)
157 curv[1] = geompy.MakeArcCenter(O, vord90[3] , vord45[3], False)
159 lipts = ((6, 6, 4), (7, 7, 5))
160 for i, ipts in enumerate(lipts):
165 plan = geompy.MakePlaneThreePnt(p0, p1, p2, 10000)
166 #geompy.addToStudy(plan, "plan%d"%i)
167 section = geompy.MakeSection(plan, arcextru, True)
168 secpart = geompy.MakePartition([section], [sect45, sect90], [], [], geompy.ShapeType["EDGE"], 0, [], 0, True)
169 #geompy.addToStudy(secpart, "secpart%d"%i)
170 lsec = geompy.ExtractShapes(secpart, geompy.ShapeType["EDGE"], True)
171 #print "len(lsec)", len(lsec)
173 pts = geompy.ExtractShapes(l, geompy.ShapeType["VERTEX"], True)
174 if (((geompy.MinDistance(pts[0], p0) < 0.001) and (geompy.MinDistance(pts[1], p1) < 0.001)) or
175 ((geompy.MinDistance(pts[1], p0) < 0.001) and (geompy.MinDistance(pts[0], p1) < 0.001))):
177 #print "curv_%d OK"%i
179 for i,l in enumerate(curv):
180 geompy.addToStudyInFather(arcextru, l, "curv%d"%i)
182 # --- creation des arêtes droites manquantes, des faces et volumes pour les quatre volumes de la jonction
184 edges = [None for i in range(8)]
185 edges[0] = geompy.MakeLineTwoPnt(vord45[0], vord90[0])
187 edges[2] = geompy.MakeLineTwoPnt(vord45[2], vord90[2])
189 edges[4] = geompy.MakeLineTwoPnt(vord45[4], vord90[4])
190 edges[5] = geompy.MakeLineTwoPnt(vord45[5], vord90[5])
193 for i,l in enumerate(edges):
194 geompy.addToStudy( l, "edge%d"%i)
196 ed45 = [None for i in range(8)]
197 ed45[0] = geompy.MakeLineTwoPnt(vord45[0], vord45[2])
198 ed45[1] = geompy.MakeLineTwoPnt(vord45[0], vord45[1])
199 ed45[2] = geompy.MakeLineTwoPnt(vord45[4], vord45[6])
200 ed45[3] = geompy.MakeLineTwoPnt(vord45[2], vord45[3])
201 ed45[4] = geompy.MakeLineTwoPnt(vord45[5], vord45[7])
202 ed45[5] = geompy.MakeLineTwoPnt(vord45[4], vord45[5])
203 ed45[6] = geompy.MakeLineTwoPnt(vord45[0], vord45[4])
204 ed45[7] = geompy.MakeLineTwoPnt(vord45[2], vord45[5])
205 for i,l in enumerate(ed45):
206 geompy.addToStudyInFather(sect45, l, "ed45_%d"%i)
208 ed90 = [None for i in range(8)]
209 ed90[0] = geompy.MakeLineTwoPnt(vord90[0], vord90[2])
210 ed90[1] = geompy.MakeLineTwoPnt(vord90[0], vord90[1])
211 ed90[2] = geompy.MakeLineTwoPnt(vord90[4], vord90[6])
212 ed90[3] = geompy.MakeLineTwoPnt(vord90[2], vord90[3])
213 ed90[4] = geompy.MakeLineTwoPnt(vord90[5], vord90[7])
214 ed90[5] = geompy.MakeLineTwoPnt(vord90[4], vord90[5])
215 ed90[6] = geompy.MakeLineTwoPnt(vord90[0], vord90[4])
216 ed90[7] = geompy.MakeLineTwoPnt(vord90[2], vord90[5])
217 for i,l in enumerate(ed90):
218 geompy.addToStudyInFather(sect90, l, "ed90_%d"%i)
221 faci.append(geompy.MakeFaceWires([ed45[6], edges[0], ed90[6], edges[4]], 0))
222 faci.append(geompy.MakeFaceWires([ed45[7], edges[2], ed90[7], edges[5]], 0))
223 faci.append(geompy.MakeFaceWires([ed45[2], edges[4], ed90[2], edges[6]], 0))
224 faci.append(geompy.MakeFaceWires([ed45[5], edges[4], ed90[5], edges[5]], 0))
225 faci.append(geompy.MakeFaceWires([ed45[4], edges[5], ed90[4], edges[7]], 0))
226 faci.append(geompy.MakeFaceWires([ed90[0], ed90[6], ed90[5], ed90[7]], 0))
227 faci.append(geompy.MakeFaceWires([ed90[1], ed90[6], ed90[2], lord90[0]], 0))
228 faci.append(geompy.MakeFaceWires([ed90[2], ed90[5], ed90[4], lord90[1]], 0))
229 faci.append(geompy.MakeFaceWires([ed90[3], ed90[7], ed90[4], lord90[2]], 0))
230 for i,f in enumerate(faci):
231 geompy.addToStudy(f, "faci_%d"%i)
233 # --- extrusion droite des faces de jonction, pour reconstituer les demi cylindres
235 extru1 = geompy.MakePrismVecH(sect45, OX, h1+10)
237 base2 = geompy.MakePartition(faci[5:], [], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
238 extru2 = geompy.MakePrismVecH(base2, OZ, h2)
240 # --- partition et coupe
242 demiDisque = geompy.MakeFaceWires([arc1, l1[0]], 1)
243 demiCylindre = geompy.MakePrismVecH(demiDisque, OX, h1)
245 box = geompy.MakeBox(0, -2*(r1+h1), -2*(r1+h1), 2*(r1+h1), 2*(r1+h1), 2*(r1+h1))
246 rot = geompy.MakeRotation(box, OY, 45*math.pi/180.0)
248 garder = geompy.MakeCutList(demiCylindre, [extru2, rot], True)
249 raccord = geompy.MakePartition([garder], faci, [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
250 assemblage = geompy.MakePartition([raccord, extru1, extru2], [], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
252 box = geompy.MakeBox(-1, -(r1+r2), -1, h1, r1+r2, h2)
253 geompy.addToStudy(box, "box")
254 final = geompy.MakeCommonList([box, assemblage], True)
256 # --- Partie infiérieure
257 v3, l3, arc3, part3 = demidisk(study, r1, a1, 180.0)
258 geompy.addToStudy(part3,"part3")
259 extru3 = geompy.MakePrismVecH(part3, OX, h1)
260 geompy.addToStudy(extru3,"extru3")
264 compound = geompy.MakeCompound([final, extru3])
265 plane = geompy.MakePlane(O,OX,2000)
266 compound_mirrored = geompy.MakeMirrorByPlane(compound, plane)
267 final = geompy.MakeCompound([compound, compound_mirrored])