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https://git.salome-platform.org/gitpub/modules/smesh.git
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175 lines
4.3 KiB
Python
175 lines
4.3 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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#
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# =======================================
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#
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import salome
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salome.salome_init()
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import GEOM
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from salome.geom import geomBuilder
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geompy = geomBuilder.New()
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import SMESH, SALOMEDS
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from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
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# Geometry
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# ========
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# A not centered holed cube build by boolean geometric operations
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# Values
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# ------
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ox = 0
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oy = 0
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oz = 0
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longueur1 = 30
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longueur2 = 70
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largeur1 = 30
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largeur2 = 50
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hauteur = 50
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rayon = 10
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# Triangular face
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# ---------------
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def triangle(p1, p2, p3):
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l = []
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l.append(geompy.MakeEdge(p1, p2))
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l.append(geompy.MakeEdge(p2, p3))
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l.append(geompy.MakeEdge(p3, p1))
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w = geompy.MakeWire(l)
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return geompy.MakeFace(w, 1)
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# Points
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# ------
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basePoint111 = geompy.MakeVertex(ox-longueur1, oy, oz-largeur1)
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basePoint211 = geompy.MakeVertex(ox+longueur2, oy, oz-largeur1)
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basePoint112 = geompy.MakeVertex(ox-longueur1, oy, oz+largeur2)
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basePoint212 = geompy.MakeVertex(ox+longueur2, oy, oz+largeur2)
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holePoint = geompy.MakeVertex(ox, oy, oz)
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# Faces
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# -----
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baseFace1 = triangle(basePoint111, basePoint211, holePoint)
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baseFace2 = triangle(basePoint211, basePoint212, holePoint)
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baseFace3 = triangle(basePoint212, basePoint112, holePoint)
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baseFace4 = triangle(basePoint112, basePoint111, holePoint)
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# Solids
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# ------
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baseVector = geompy.MakeVectorDXDYDZ(0, 1, 0)
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baseSolid1 = geompy.MakePrismVecH(baseFace1, baseVector, hauteur)
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baseSolid2 = geompy.MakePrismVecH(baseFace2, baseVector, hauteur)
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baseSolid3 = geompy.MakePrismVecH(baseFace3, baseVector, hauteur)
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baseSolid4 = geompy.MakePrismVecH(baseFace4, baseVector, hauteur)
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holeSolid = geompy.MakeCylinder(holePoint, baseVector, rayon, hauteur)
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# Boolean operations
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# ------------------
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baseHexa1 = geompy.MakeCut(baseSolid1, holeSolid)
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baseHexa2 = geompy.MakeCut(baseSolid2, holeSolid)
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baseHexa3 = geompy.MakeCut(baseSolid3, holeSolid)
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baseHexa4 = geompy.MakeCut(baseSolid4, holeSolid)
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# Compound, glue and repair
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# -------------------------
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c_l = []
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c_l.append(baseHexa1)
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c_l.append(baseHexa2)
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c_l.append(baseHexa3)
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c_l.append(baseHexa4)
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c_cpd = geompy.MakeCompound(c_l)
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c_glu = geompy.MakeGlueFaces(c_cpd, 1.e-5)
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piece = geompy.RemoveExtraEdges(c_glu, doUnionFaces=True)
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# Add in study
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# ------------
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piece_id = geompy.addToStudy(piece, "ex06_hole1boolean")
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# Meshing
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# =======
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# Create a hexahedral mesh
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# ------------------------
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hexa = smesh.Mesh(piece, "ex06_hole1boolean:hexa")
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algo = hexa.Segment()
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algo.NumberOfSegments(11)
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hexa.Quadrangle()
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hexa.Hexahedron()
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# Create local hypothesis
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# -----------------------
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edge1 = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(ox, oy, oz-largeur1))
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algo1 = hexa.Segment(edge1)
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algo1.NumberOfSegments(3)
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algo1.Propagation()
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edge2 = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(ox-longueur1, oy, oz))
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algo2 = hexa.Segment(edge2)
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algo2.NumberOfSegments(5)
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algo2.Propagation()
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edge3 = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(ox, oy, oz+largeur2))
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algo3 = hexa.Segment(edge3)
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algo3.NumberOfSegments(7)
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algo3.Propagation()
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edge4 = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(ox+longueur2, oy, oz))
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algo4 = hexa.Segment(edge4)
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algo4.NumberOfSegments(9)
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algo4.Propagation()
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# Mesh calculus
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# -------------
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isDone = hexa.Compute()
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if not isDone:
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raise Exception("Error when computing Mesh")
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# Update object browser
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# ---------------------
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salome.sg.updateObjBrowser()
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