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