# -*- 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() # Geometrie # ========= # Mailler en hexahedre une sphere dans un cube. # Donnees # ------- sphere_rayon = 100 cube_cote = 200 plan_trim = 1000 # Sphere # ------ sphere_centre = geompy.MakeVertex(0, 0, 0) sphere_pleine = geompy.MakeSpherePntR(sphere_centre, sphere_rayon) # Cube interieur # -------------- boite_cote = sphere_rayon / 2 boite = geompy.MakeBox(-boite_cote, -boite_cote, -boite_cote, +boite_cote, +boite_cote, +boite_cote) blocs = [boite] # Decoupage sphere # ---------------- sphere_troue = geompy.MakeCut(sphere_pleine, boite) #sphere_outils = [] #sphere_outils.append(MakePlane(sphere_centre, MakeVectorDXDYDZ( 1, 0, 1), plan_trim)) #sphere_outils.append(MakePlane(sphere_centre, MakeVectorDXDYDZ( 1, 0, -1), plan_trim)) #sphere_outils.append(MakePlane(sphere_centre, MakeVectorDXDYDZ( 1, 1, 0), plan_trim)) #sphere_outils.append(MakePlane(sphere_centre, MakeVectorDXDYDZ(-1, 1, 0), plan_trim)) f1 = geompy.MakePlane(sphere_centre, geompy.MakeVectorDXDYDZ( 1, 0, 1), plan_trim) f2 = geompy.MakePlane(sphere_centre, geompy.MakeVectorDXDYDZ(-1, 1, 0), plan_trim) f3 = geompy.MakePlane(sphere_centre, geompy.MakeVectorDXDYDZ( 1, 1, 0), plan_trim) f4 = geompy.MakePlane(sphere_centre, geompy.MakeVectorDXDYDZ( 1, 0, -1), plan_trim) #sphere_decoupee = MakePartition(solids, sphere_outils, [], [], ShapeType["SOLID"]) sphere_decoupee = geompy.MakePartition([sphere_troue], [f1], [], [], geompy.ShapeType["SOLID"]) sphere_decoupee = geompy.MakePartition([sphere_decoupee], [f2], [], [], geompy.ShapeType["SOLID"]) sphere_decoupee = geompy.MakePartition([sphere_decoupee], [f3], [], [], geompy.ShapeType["SOLID"]) sphere_decoupee = geompy.MakePartition([sphere_decoupee], [f4], [], [], geompy.ShapeType["SOLID"]) sphere_partie = geompy.MakeCompound([sphere_decoupee]) sphere_partie = geompy.GetBlockNearPoint(sphere_decoupee, geompy.MakeVertex(-sphere_rayon, 0, 0)) sphere_bloc = geompy.RemoveExtraEdges(sphere_partie) blocs.append(sphere_bloc) pi2 = 3.141592653/2 sphere_dir1 = geompy.MakeVectorDXDYDZ(0, 1, 0) sphere_dir2 = geompy.MakeVectorDXDYDZ(0, 0, 1) blocs.append(geompy.MakeRotation(sphere_bloc, sphere_dir1, +pi2)) blocs.append(geompy.MakeRotation(sphere_bloc, sphere_dir1, -pi2)) blocs.append(geompy.MakeRotation(sphere_bloc, sphere_dir2, +pi2)) blocs.append(geompy.MakeRotation(sphere_bloc, sphere_dir2, -pi2)) blocs.append(geompy.MakeMirrorByPoint(sphere_bloc, sphere_centre)) # Cube exterieur # -------------- cube_plein = geompy.MakeBox(-cube_cote, -cube_cote, -cube_cote, +cube_cote, +cube_cote, +cube_cote) cube_trou = geompy.MakeCut(cube_plein, sphere_pleine) #cube_decoupe = MakePartition([cube_trou], sphere_outils, [], [], ShapeType["SOLID"]) cube_decoupe = geompy.MakePartition([cube_trou], [f1], [], [], geompy.ShapeType["SOLID"]) cube_decoupe = geompy.MakePartition([cube_decoupe], [f2], [], [], geompy.ShapeType["SOLID"]) cube_decoupe = geompy.MakePartition([cube_decoupe], [f3], [], [], geompy.ShapeType["SOLID"]) cube_decoupe = geompy.MakePartition([cube_decoupe], [f4], [], [], geompy.ShapeType["SOLID"]) cube_decoupe = geompy.MakeCompound([cube_decoupe]) cube_partie = geompy.GetBlockNearPoint(cube_decoupe, geompy.MakeVertex(-cube_cote, 0, 0)) cube_bloc = geompy.RemoveExtraEdges(cube_partie) blocs.append(cube_bloc) blocs.append(geompy.MakeRotation(cube_bloc, sphere_dir1, +pi2)) blocs.append(geompy.MakeRotation(cube_bloc, sphere_dir1, -pi2)) blocs.append(geompy.MakeRotation(cube_bloc, sphere_dir2, +pi2)) blocs.append(geompy.MakeRotation(cube_bloc, sphere_dir2, -pi2)) blocs.append(geompy.MakeMirrorByPoint(cube_bloc, sphere_centre)) # Piece # ----- piece_cpd = geompy.MakeCompound(blocs) piece = geompy.MakeGlueFaces(piece_cpd, 1.e-3) piece_id = geompy.addToStudy(piece, "ex19_sphereINcube") # Groupe geometrique # ================== # Definition du groupe # -------------------- groupe = geompy.CreateGroup(piece, geompy.ShapeType["SOLID"]) groupe_nom = "ex19_sphereINcube_interieur" geompy.addToStudy(groupe, groupe_nom) groupe.SetName(groupe_nom) # Contenu du groupe # ----------------- groupe_sphere = geompy.GetShapesOnSphere(piece, geompy.ShapeType["SOLID"], sphere_centre, sphere_rayon, GEOM.ST_ONIN) geompy.UnionList(groupe, groupe_sphere) # Meshing # ======= # Create a hexahedral mesh # ------------------------ hexa = smesh.Mesh(piece, "ex19_sphereINcube:hexa") algo = hexa.Segment() algo.NumberOfSegments(10) hexa.Quadrangle() hexa.Hexahedron() # Mesh calculus # ------------- isDone = hexa.Compute() if not isDone: raise Exception("Error when computing Mesh") # Le groupe de mailles # -------------------- hexa_groupe = hexa.Group(groupe) # Update object browser # --------------------- salome.sg.updateObjBrowser()