1 # -*- coding: iso-8859-1 -*-
7 from salome.geom import geomBuilder
12 def demidisk(study, r1, a1, roty=0, solid_thickness=0):
13 if solid_thickness < 1e-7:
18 geompy = geomBuilder.New(study)
20 O = geompy.MakeVertex(0, 0, 0)
21 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
22 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
23 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
27 v0 = geompy.MakeVertex(0, 0, 0)
28 v[0] = geompy.MakeVertex(0, r1/2.0, 0)
29 v[1] = geompy.MakeVertex(0, r1, 0)
30 l[1] = geompy.MakeLineTwoPnt(v[0], v[1])
31 l[2] = geompy.MakeRotation(l[1], OX, a1*math.pi/180.0)
32 v[4] = geompy.MakeRotation(v[0], OX, a1*math.pi/180.0)
33 v[6] = geompy.MakeRotation(v[1], OX, a1*math.pi/180.0)
35 v[2] = geompy.MakeVertex(0, -r1/2.0, 0)
36 v[3] = geompy.MakeVertex(0, -r1, 0)
37 l[3] = geompy.MakeLineTwoPnt(v[2], v[3])
38 l[4] = geompy.MakeRotation(l[3], OX, -a1*math.pi/180.0)
39 v[5] = geompy.MakeRotation(v[2], OX, -a1*math.pi/180.0)
40 v[7] = geompy.MakeRotation(v[3], OX, -a1*math.pi/180.0)
42 l[5] = geompy.MakeLineTwoPnt(v[4], v[5])
43 l[6] = geompy.MakeLineTwoPnt(v[0], v[4])
44 l[7] = geompy.MakeLineTwoPnt(v[2], v[5])
46 v7 = geompy.MakeVertex(0, 0, r1)
47 arc1 = geompy.MakeArc(v[1], v7, v[3])
48 l[0] = geompy.MakeLineTwoPnt(v[1], v[3])
49 face1 = geompy.MakeFaceWires([arc1, l[0]], 1)
53 v0 = geompy.MakeVertex(0, r1 + solid_thickness, 0)
54 v1 = geompy.MakeRotation(v0, OX, a1*math.pi/180.0)
55 v2 = geompy.MakeRotation(v0, OX, math.pi - (a1*math.pi/180.0))
56 v3 = geompy.MakeRotation(v0, OX, math.pi)
57 v.extend([v0,v1,v3,v2]) # The order is important for use in pointsProjetes
58 l0 = geompy.MakeLineTwoPnt(v[1], v0)
59 l2 = geompy.MakeRotation(l0, OX, a1*math.pi/180.0)
60 l3 = geompy.MakeRotation(l0, OX, math.pi - (a1*math.pi/180.0))
61 face2 = geompy.MakeRevolution(l0, OX, a1*math.pi/180.0)
62 face3 = geompy.MakeRevolution(l2, OX, math.pi - 2*a1*math.pi/180.0)
63 face4 = geompy.MakeRevolution(l3, OX, a1*math.pi/180.0)
64 part0 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
65 compound1 = geompy.MakeCompound([part0, face2, face3, face4])
66 part1 = geompy.MakeGlueEdges(compound1,1e-7)
68 part1 = geompy.MakePartition([face1], [l[2], l[4], l[5], l[6], l[7]], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
71 vrot = [ geompy.MakeRotation(vert, OY, roty*math.pi/180.0) for vert in v ]
72 lrot = [ geompy.MakeRotation(lin, OY, roty*math.pi/180.0) for lin in l ]
73 arc = geompy.MakeRotation(arc1, OY, roty*math.pi/180.0)
74 part = geompy.MakeRotation(part1, OY, roty*math.pi/180.0)
75 return vrot, lrot, arc, part
77 return v, l, arc1, part1
79 def pointsProjetes(study, vref, face):
80 geompy = geomBuilder.New(study)
81 vface = geompy.ExtractShapes(face, geompy.ShapeType["VERTEX"], True)
82 vord = range(len(vref))
83 plan = geompy.MakePlaneThreePnt(vref[0], vref[1], vref[-1], 10000)
84 vproj = [ geompy.MakeProjection(vert, plan) for vert in vface ]
85 for i,v in enumerate(vproj):
86 dist = [ (geompy.MinDistance(v, vr), j) for j,vr in enumerate(vref) ]
89 if dist[0][0] < 1.e-3:
90 vord[dist[0][1]] = vface[i]
93 def arcsProjetes(study, vf, face):
94 geompy = geomBuilder.New(study)
95 lface = geompy.ExtractShapes(face, geompy.ShapeType["EDGE"], True)
97 ends = [vf[1], vf[6], vf[7], vf[3]]
100 pts = geompy.ExtractShapes(lf, geompy.ShapeType["VERTEX"], True)
101 if (((geompy.MinDistance(pts[0], ends[i]) < 0.001) and (geompy.MinDistance(pts[1], ends[i+1]) < 0.001)) or
102 ((geompy.MinDistance(pts[1], ends[i]) < 0.001) and (geompy.MinDistance(pts[0], ends[i+1]) < 0.001))):
109 def build_shape(study, r1, r2, h1, h2, solid_thickness=0):
110 if solid_thickness < 1e-7:
115 geompy = geomBuilder.New(study)
117 O = geompy.MakeVertex(0, 0, 0)
118 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
119 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
120 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
124 ratio = float(r2)/float(r1)
125 if ratio > (1.0 -seuilmax):
126 a1 = 45.0*(1.0 -ratio)/seuilmax
129 res = geompy.MakeCompound([demicyl1,demicyl2])
133 # --- creation des faces de la jonction
134 [faci, sect45, arc1, l1, lord90, lord45, edges, arcextru] = jonction(study, r1, r2,\
137 [faci_ext, sect45_ext, arc1_ext, l1_ext, \
138 lord90_ext, lord45_ext, edges_ext, arcextru_ext] = jonction(study, r1 + solid_thickness, r2 + solid_thickness,\
140 faces_jonction_ext = []
141 for i,l in enumerate(lord90):
142 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord90[i],lord90_ext[i]))
143 for i in [1, 3, 6, 7]:
144 faces_jonction_ext.append(geompy.MakeQuad2Edges(edges[i],edges_ext[i]))
145 for i,l in enumerate(lord45):
146 faces_jonction_ext.append(geompy.MakeQuad2Edges(lord45[i],lord45_ext[i]))
148 for i,face in enumerate(faces_jonction_ext):
149 geompy.addToStudy(faces_jonction_ext[i], "faci_ext_%d"%i)
151 # --- extrusion droite des faces de jonction, pour reconstituer les demi cylindres
152 # TODO : ajouter les faces nécessaires à sect45 dans le cas avec solide
154 sect45 = geompy.MakeCompound([sect45]+faces_jonction_ext[-3:])
155 sect45 = geompy.MakeGlueEdges(sect45, 1e-7)
157 #return sect45, faces_jonction_ext[-3:]
158 extru1 = geompy.MakePrismVecH(sect45, OX, h1+10)
160 #base2 = geompy.MakeCompound(faci[5:])
161 #base2 = geompy.MakeGlueEdges(base2, 1e-7)
163 faces_coupe = faci[5:]
165 faces_coupe = faci[5:]+faces_jonction_ext[:3]
166 base2 = geompy.MakePartition(faces_coupe, [], [], [], geompy.ShapeType["FACE"], 0, [], 0, True)
167 extru2 = geompy.MakePrismVecH(base2, OZ, h2)
169 # --- partition et coupe
172 demiDisque = geompy.MakeFaceWires([arc1_ext, l1_ext[0]], 1)
174 demiDisque = geompy.MakeFaceWires([arc1, l1[0]], 1)
175 demiCylindre = geompy.MakePrismVecH(demiDisque, OX, h1)
177 box = geompy.MakeBox(0, -2*(r1+h1), -2*(r1+h1), 2*(r1+h1), 2*(r1+h1), 2*(r1+h1))
178 rot = geompy.MakeRotation(box, OY, 45*math.pi/180.0)
180 garder = geompy.MakeCutList(demiCylindre, [extru2, rot], True)
181 geompy.addToStudy(garder,"garder")
183 faces_coupe = faci[:5]
185 faces_coupe.extend(faces_jonction_ext[-7:])
186 raccord = geompy.MakePartition([garder], faces_coupe + [arcextru], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
187 assemblage = geompy.MakeCompound([raccord, extru1, extru2])
188 assemblage = geompy.MakeGlueFaces(assemblage, 1e-7)
190 #assemblage = geompy.MakePartition([raccord, extru1, extru2], [], [], [], geompy.ShapeType["SOLID"], 0, [], 0, True)
192 #return extru2, garder, raccord
194 box = geompy.MakeBox(-1, -(r1+r2+2*solid_thickness), -1, h1, r1+r2+2*solid_thickness, h2)
195 geompy.addToStudy(box, "box")
196 final = geompy.MakeCommonList([box, assemblage], True)
198 # --- Partie inférieure
199 v3, l3, arc3, part3 = demidisk(study, r1, a1, 180.0, solid_thickness)
200 geompy.addToStudy(part3,"part3")
201 extru3 = geompy.MakePrismVecH(part3, OX, h1)
202 geompy.addToStudy(extru3,"extru3")
206 compound = geompy.MakeCompound([final, extru3])
207 plane = geompy.MakePlane(O,OX,2000)
208 compound_mirrored = geompy.MakeMirrorByPlane(compound, plane)
209 final = geompy.MakeCompound([compound, compound_mirrored])
214 def jonction(study, r1, r2, h1, h2, a1):
216 O = geompy.MakeVertex(0, 0, 0)
217 OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
218 OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
219 OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
221 # --- sections droites des deux demi cylindres avec le partionnement
222 v1, l1, arc1, part1 = demidisk(study, r1, a1, 0.)
223 v2, l2, arc2, part2 = demidisk(study, r2, a1, 90.0)
224 #elems_disk1 = [v1, l1, arc1, part1]
225 #elems_disk2 = [v2, l2, arc2, part2]
227 # --- extrusion des sections --> demi cylindres de travail, pour en extraire les sections utilisées au niveau du Té
228 # et enveloppe cylindrique du cylindre principal
230 demicyl1 = geompy.MakePrismVecH(part1, OX, h1)
231 demicyl2 = geompy.MakePrismVecH(part2, OZ, h2)
232 arcextru = geompy.MakePrismVecH(arc1, OX, h1)
234 # --- plan de coupe à 45° sur le cylindre principal,
235 # section à 45° du cylndre principal,
236 # section du cylindre secondaire par l'enveloppe cylindrique du cylindre principal
238 plan1 = geompy.MakePlane(O, OX, 4*r1)
239 planr = geompy.MakeRotation(plan1, OY, 45*math.pi/180.0)
240 geompy.addToStudy(planr, 'planr')
242 sect45 = geompy.MakeCommonList([demicyl1, planr], True)
243 geompy.addToStudy(sect45, 'sect45')
245 sect90 = geompy.MakeCommonList([demicyl2, arcextru], True)
246 geompy.addToStudy(sect90, 'sect90')
248 # --- liste ordonnée des points projetés sur les deux sections
250 vord45 = pointsProjetes(study, v1, sect45)
251 vord90 = pointsProjetes(study, v2, sect90)
252 for i,v in enumerate(vord45):
253 geompy.addToStudyInFather(sect45, v, 'v%d'%i)
254 for i,v in enumerate(vord90):
255 geompy.addToStudyInFather(sect90, v, 'v%d'%i)
257 # --- identification des projections des trois arcs de cercle, sur les deux sections.
259 lord45 = arcsProjetes(study, vord45, sect45)
260 lord90 = arcsProjetes(study, vord90, sect90)
261 for i,l in enumerate(lord45):
262 geompy.addToStudyInFather(sect45, l, 'l%d'%i)
263 for i,l in enumerate(lord90):
264 geompy.addToStudyInFather(sect90, l, 'l%d'%i)
266 # --- abaissement des quatre points centraux de la section du cylindre secondaire
269 #dz = -(r2 + solid_thickness)/2.0
273 for i in (0, 2, 4, 5):
274 vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz, True)
275 geompy.addToStudyInFather(sect90, vord90[i], 'vm%d'%i)
277 #for i in (1, 3, 6, 7):
278 #vord90[i] = geompy.TranslateDXDYDZ(vord90[i], 0, 0, dz*solid_thickness/(r2+solid_thickness), True)
285 # --- création des deux arêtes curvilignes sur l'enveloppe cylindrique du cylindre principal, à la jonction
287 curv = [None for i in range(4)] # liaisons entre les points 1, 3, 6 et 7 des 2 sections
289 curv[0] = geompy.MakeArcCenter(O, vord90[1] , vord45[1], False)
290 curv[1] = geompy.MakeArcCenter(O, vord90[3] , vord45[3], False)
292 lipts = ((6, 6, 4), (7, 7, 5))
293 for i, ipts in enumerate(lipts):
298 plan = geompy.MakePlaneThreePnt(p0, p1, p2, 10000)
299 #geompy.addToStudy(plan, "plan%d"%i)
300 section = geompy.MakeSection(plan, arcextru, True)
301 secpart = geompy.MakePartition([section], [sect45, sect90], [], [], geompy.ShapeType["EDGE"], 0, [], 0, True)
302 geompy.addToStudy(secpart, "secpart%d"%i)
303 lsec = geompy.ExtractShapes(secpart, geompy.ShapeType["EDGE"], True)
304 #print "len(lsec)", len(lsec)
306 # TODO : revoir ça dans le cas avec solide
308 pts = geompy.ExtractShapes(l, geompy.ShapeType["VERTEX"], True)
309 if (((geompy.MinDistance(pts[0], p0) < 0.001) and (geompy.MinDistance(pts[1], p1) < 0.001)) or
310 ((geompy.MinDistance(pts[1], p0) < 0.001) and (geompy.MinDistance(pts[0], p1) < 0.001))):
314 # RNC : commente temporairement
315 #for i,l in enumerate(curv):
316 # geompy.addToStudyInFather(arcextru, l, "curv%d"%i)
318 # --- creation des arêtes droites manquantes, des faces et volumes pour les quatre volumes de la jonction
320 edges = [None for i in range(8)]
321 edges[0] = geompy.MakeLineTwoPnt(vord45[0], vord90[0])
323 edges[2] = geompy.MakeLineTwoPnt(vord45[2], vord90[2])
325 edges[4] = geompy.MakeLineTwoPnt(vord45[4], vord90[4])
326 edges[5] = geompy.MakeLineTwoPnt(vord45[5], vord90[5])
329 for i,l in enumerate(edges):
331 geompy.addToStudy( l, "edge%d"%i)
333 ed45 = [None for i in range(8)]
334 ed45[0] = geompy.MakeLineTwoPnt(vord45[0], vord45[2])
335 ed45[1] = geompy.MakeLineTwoPnt(vord45[0], vord45[1])
336 ed45[2] = geompy.MakeLineTwoPnt(vord45[4], vord45[6])
337 ed45[3] = geompy.MakeLineTwoPnt(vord45[2], vord45[3])
338 ed45[4] = geompy.MakeLineTwoPnt(vord45[5], vord45[7])
339 ed45[5] = geompy.MakeLineTwoPnt(vord45[4], vord45[5])
340 ed45[6] = geompy.MakeLineTwoPnt(vord45[0], vord45[4])
341 ed45[7] = geompy.MakeLineTwoPnt(vord45[2], vord45[5])
342 for i,l in enumerate(ed45):
343 geompy.addToStudyInFather(sect45, l, "ed45_%d"%i)
345 ed90 = [None for i in range(8)]
346 ed90[0] = geompy.MakeLineTwoPnt(vord90[0], vord90[2])
347 ed90[1] = geompy.MakeLineTwoPnt(vord90[0], vord90[1])
348 ed90[2] = geompy.MakeLineTwoPnt(vord90[4], vord90[6])
349 ed90[3] = geompy.MakeLineTwoPnt(vord90[2], vord90[3])
350 ed90[4] = geompy.MakeLineTwoPnt(vord90[5], vord90[7])
351 ed90[5] = geompy.MakeLineTwoPnt(vord90[4], vord90[5])
352 ed90[6] = geompy.MakeLineTwoPnt(vord90[0], vord90[4])
353 ed90[7] = geompy.MakeLineTwoPnt(vord90[2], vord90[5])
354 for i,l in enumerate(ed90):
355 geompy.addToStudyInFather(sect90, l, "ed90_%d"%i)
358 faci.append(geompy.MakeFaceWires([ed45[6], edges[0], ed90[6], edges[4]], 0))
359 faci.append(geompy.MakeFaceWires([ed45[7], edges[2], ed90[7], edges[5]], 0))
360 faci.append(geompy.MakeFaceWires([ed45[2], edges[4], ed90[2], edges[6]], 0))
361 faci.append(geompy.MakeFaceWires([ed45[5], edges[4], ed90[5], edges[5]], 0))
362 faci.append(geompy.MakeFaceWires([ed45[4], edges[5], ed90[4], edges[7]], 0))
363 faci.append(geompy.MakeFaceWires([ed90[0], ed90[6], ed90[5], ed90[7]], 0))
364 faci.append(geompy.MakeFaceWires([ed90[1], ed90[6], ed90[2], lord90[0]], 0))
365 faci.append(geompy.MakeFaceWires([ed90[2], ed90[5], ed90[4], lord90[1]], 0))
366 faci.append(geompy.MakeFaceWires([ed90[3], ed90[7], ed90[4], lord90[2]], 0))
367 for i,f in enumerate(faci):
368 geompy.addToStudy(f, "faci_%d"%i)
370 return faci, sect45, arc1, l1, lord90, lord45, edges, arcextru
372 if __name__=="__main__":
373 """For testing purpose"""
375 theStudy = salome.myStudy
376 geompy = geomBuilder.New(theStudy)
377 res = build_shape(theStudy, 80., 20., 100., 100., 10.)
379 for i,v in enumerate(res):
380 geompy.addToStudy(v,"v%d"%i)
383 #res = demidisk(theStudy, 80, 45, 0, 10)
384 #geompy.addToStudy(res[3], "res")
385 #for i,v in enumerate(res[0]):
386 # geompy.addToStudy(v,"v%d"%i)
387 geompy.addToStudy(res, "res")