# -*- coding: iso-8859-1 -*- # Copyright (C) 2007-2013 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. # # 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 # # Tetrahedrization of the geometry union of 2 boxes having a face in common # Hypothesis and algorithms for the mesh generation are global # import salome import geompy import smesh # ---- define 2 boxes box1 and box2 box1 = geompy.MakeBox(0., 0., 0., 100., 200., 300.) idbox1 = geompy.addToStudy(box1, "box1") print "Analysis of the geometry box1 :" subShellList = geompy.SubShapeAll(box1, geompy.ShapeType["SHELL"]) subFaceList = geompy.SubShapeAll(box1, geompy.ShapeType["FACE"]) subEdgeList = geompy.SubShapeAll(box1, geompy.ShapeType["EDGE"]) print "number of Shells in box1 : ", len(subShellList) print "number of Faces in box1 : ", len(subFaceList) print "number of Edges in box1 : ", len(subEdgeList) box2 = geompy.MakeBox(100., 0., 0., 200., 200., 300.) idbox2 = geompy.addToStudy(box2, "box2") print "Analysis of the geometry box2 :" subShellList = geompy.SubShapeAll(box2, geompy.ShapeType["SHELL"]) subFaceList = geompy.SubShapeAll(box2, geompy.ShapeType["FACE"]) subEdgeList = geompy.SubShapeAll(box2, geompy.ShapeType["EDGE"]) print "number of Shells in box2 : ", len(subShellList) print "number of Faces in box2 : ", len(subFaceList) print "number of Edges in box2 : ", len(subEdgeList) # append the tow boxes to make ine shel, referrencing only once # the internal interface shell = geompy.MakePartition([box1, box2]) idshell = geompy.addToStudy(shell, "shell") print "Analysis of the geometry shell (union of box1 and box2) :" subShellList = geompy.SubShapeAll(shell, geompy.ShapeType["SHELL"]) subFaceList = geompy.SubShapeAll(shell, geompy.ShapeType["FACE"]) subEdgeList = geompy.SubShapeAll(shell, geompy.ShapeType["EDGE"]) print "number of Shells in shell : ", len(subShellList) print "number of Faces in shell : ", len(subFaceList) print "number of Edges in shell : ", len(subEdgeList) ### ---------------------------- SMESH -------------------------------------- smesh.SetCurrentStudy(salome.myStudy) # ---- init a Mesh with the shell mesh = smesh.Mesh(shell, "MeshBox2") # ---- set Hypothesis and Algorithm print "-------------------------- NumberOfSegments" numberOfSegments = 10 regular1D = mesh.Segment() hypNbSeg = regular1D.NumberOfSegments(numberOfSegments) print hypNbSeg.GetName() print hypNbSeg.GetId() print hypNbSeg.GetNumberOfSegments() smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegments)) print "-------------------------- MaxElementArea" maxElementArea = 500 mefisto2D = mesh.Triangle() hypArea = mefisto2D.MaxElementArea(maxElementArea) print hypArea.GetName() print hypArea.GetId() print hypArea.GetMaxElementArea() smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea)) print "-------------------------- MaxElementVolume" maxElementVolume = 500 netgen3D = mesh.Tetrahedron(smesh.NETGEN) hypVolume = netgen3D.MaxElementVolume(maxElementVolume) print hypVolume.GetName() print hypVolume.GetId() print hypVolume.GetMaxElementVolume() smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume)) salome.sg.updateObjBrowser(1) print "-------------------------- compute shell" ret = mesh.Compute() print ret if ret != 0: log = mesh.GetLog(0) # no erase trace for linelog in log: print linelog print "Information about the MeshBox2:" print "Number of nodes : ", mesh.NbNodes() print "Number of edges : ", mesh.NbEdges() print "Number of faces : ", mesh.NbFaces() print "Number of triangles : ", mesh.NbTriangles() print "Number of volumes : ", mesh.NbVolumes() print "Number of tetrahedrons: ", mesh.NbTetras() else: print "probleme when computing the mesh"