# -*- coding: iso-8859-1 -*- # Copyright (C) 2007-2023 CEA, EDF, 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 # ##################################################################### #Created :17/02/2005 #Author :MASLOV Eugeny, KOVALTCHUK Alexey ##################################################################### # 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() import os import math #Sketcher_1 creation print("Sketcher creation...") Sketcher_1 = geompy.MakeSketcher("Sketcher:F 100 -57.7:TT 100 57.7:TT 0 115.47:TT -100 57.7:TT -100 -57.7:TT 0 -115.47:WW") geompy.addToStudy(Sketcher_1, "Sketcher_1") Face_1 = geompy.MakeFace(Sketcher_1, 1) geompy.addToStudy(Face_1, "Face_1") #Line creation print("Line creation...") Line_1 = geompy.MakeLineTwoPnt(geompy.MakeVertex(0,0,0), geompy.MakeVertex(0,0,100)) geompy.addToStudy(Line_1, "Line_1") #Prism creation print("Prism creation...") Prism_1 = geompy.MakePrismVecH(Face_1, Line_1, 100) geompy.addToStudy(Prism_1, "Prism_1") #Sketcher_2 creation print("Sketcher creation...") Sketcher_2 = geompy.MakeSketcher("Sketcher:F 50 0:TT 80 0:TT 112 13:TT 112 48:TT 80 63:TT 80 90:TT 50 90:WW", [0,0,0, 1,0,0, 0,1,0]) geompy.addToStudy(Sketcher_2, "Sketcher_2") Face_2 = geompy.MakeFace(Sketcher_2, 1) geompy.addToStudy(Face_2, "Face_2") #Revolution creation print("Revolution creation...") Revolution_1 = geompy.MakeRevolution(Face_2, Line_1, 2*math.pi) geompy.addToStudy(Revolution_1, "Revolution_1") #Common applying print("Common of Revolution and Prism...") Common_1 = geompy.MakeBoolean(Revolution_1, Prism_1, 1) geompy.addToStudy(Common_1, "Common_1") #Explode Common_1 on edges CommonExplodedListEdges = geompy.SubShapeAll(Common_1, geompy.ShapeType["EDGE"]) for i in range(0, len(CommonExplodedListEdges)): name = "Edge_"+str(i+1) geompy.addToStudyInFather(Common_1, CommonExplodedListEdges[i], name) #Fillet applying print("Fillet creation...") Fillet_1 = geompy.MakeFillet(Common_1, 10, geompy.ShapeType["EDGE"], [5]) geompy.addToStudy(Fillet_1, "Fillet_1") #Chamfer applying print("Chamfer creation...") cyl_face = geompy.GetFaceNearPoint( Fillet_1, geompy.MakeVertex( 50, 0, 45 ), theName='cyl_face') cyl_face_id = geompy.GetSubShapeID( Fillet_1, cyl_face ) top_face = geompy.GetFaceNearPoint( Fillet_1, geompy.MakeVertex( 60, 0, 90 ), theName='top_face') top_face_id = geompy.GetSubShapeID( Fillet_1, top_face ) Chamfer_1 = geompy.MakeChamferEdge(Fillet_1, 10, 10, cyl_face_id, top_face_id, theName='Chamfer_1' ) cyl_face = geompy.GetFaceNearPoint( Chamfer_1, geompy.MakeVertex( 80, 0, 85 ), theName='cyl_face') cyl_face_id = geompy.GetSubShapeID( Chamfer_1, cyl_face ) top_face = geompy.GetFaceNearPoint( Chamfer_1, geompy.MakeVertex( 65, 0, 90 ), theName='top_face') top_face_id = geompy.GetSubShapeID( Chamfer_1, top_face ) Chamfer_2 = geompy.MakeChamferEdge(Chamfer_1, 10, 10, cyl_face_id, top_face_id, theName='Chamfer_2' ) #Import of the shape from "slots.brep" print("Import multi-rotation from the DATA_DIR/Shapes/Brep/slots.brep") thePath = os.getenv("DATA_DIR") theFileName = os.path.join( thePath,"Shapes","Brep","slots.brep") theShapeForCut = geompy.ImportBREP(theFileName) geompy.addToStudy(theShapeForCut, "slot.brep_1") #Cut applying print("Cut...") Cut_1 = geompy.MakeBoolean(Chamfer_2, theShapeForCut, 2) Cut_1_ID = geompy.addToStudy(Cut_1, "Cut_1") #Mesh creation # -- Init -- shape_mesh = salome.IDToObject( Cut_1_ID ) mesh = smesh.Mesh(shape_mesh, "Nut") #HYPOTHESIS CREATION print("-------------------------- Average length") theAverageLength = 5 algoReg1D = mesh.Segment() hAvLength = algoReg1D.LocalLength(theAverageLength) print(hAvLength.GetName()) print(hAvLength.GetId()) print(hAvLength.GetLength()) smesh.SetName(hAvLength, "AverageLength_"+str(theAverageLength)) print("-------------------------- MaxElementArea") theMaxElementArea = 20 algoTri = mesh.Triangle() hArea = algoTri.MaxElementArea( theMaxElementArea ) print(hArea.GetName()) print(hArea.GetId()) print(hArea.GetMaxElementArea()) smesh.SetName(hArea, "MaxElementArea_"+str(theMaxElementArea)) print("-------------------------- MaxElementVolume") theMaxElementVolume = 150 algoNg = mesh.Tetrahedron(smeshBuilder.NETGEN) hVolume = algoNg.MaxElementVolume( theMaxElementVolume ) print(hVolume.GetName()) print(hVolume.GetId()) print(hVolume.GetMaxElementVolume()) smesh.SetName(hVolume, "MaxElementVolume_"+str(theMaxElementVolume)) print("-------------------------- compute the mesh of the mechanic piece") isDone = mesh.Compute() if not isDone: raise Exception("Error when computing Mesh") print("Information about the Nut:") 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 quadrangles : ", mesh.NbQuadrangles()) print("Number of volumes : ", mesh.NbVolumes()) print("Number of tetrahedrons: ", mesh.NbTetras()) salome.sg.updateObjBrowser()