1 # -*- coding: iso-8859-1 -*-
2 # Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
4 # Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
5 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
7 # This library is free software; you can redistribute it and/or
8 # modify it under the terms of the GNU Lesser General Public
9 # License as published by the Free Software Foundation; either
10 # version 2.1 of the License, or (at your option) any later version.
12 # This library is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 # Lesser General Public License for more details.
17 # You should have received a copy of the GNU Lesser General Public
18 # License along with this library; if not, write to the Free Software
19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
24 #####################################################################
26 #Author :MASLOV Eugeny, KOVALTCHUK Alexey
27 #####################################################################
32 from salome.geom import geomBuilder
33 geompy = geomBuilder.New()
35 import SMESH, SALOMEDS
36 from salome.smesh import smeshBuilder
37 smesh = smeshBuilder.New()
43 print("Sketcher creation...")
44 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")
45 geompy.addToStudy(Sketcher_1, "Sketcher_1")
46 Face_1 = geompy.MakeFace(Sketcher_1, 1)
47 geompy.addToStudy(Face_1, "Face_1")
50 print("Line creation...")
51 Line_1 = geompy.MakeLineTwoPnt(geompy.MakeVertex(0,0,0), geompy.MakeVertex(0,0,100))
52 geompy.addToStudy(Line_1, "Line_1")
55 print("Prism creation...")
56 Prism_1 = geompy.MakePrismVecH(Face_1, Line_1, 100)
57 geompy.addToStudy(Prism_1, "Prism_1")
60 print("Sketcher creation...")
61 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])
62 geompy.addToStudy(Sketcher_2, "Sketcher_2")
63 Face_2 = geompy.MakeFace(Sketcher_2, 1)
64 geompy.addToStudy(Face_2, "Face_2")
67 print("Revolution creation...")
68 Revolution_1 = geompy.MakeRevolution(Face_2, Line_1, 2*math.pi)
69 geompy.addToStudy(Revolution_1, "Revolution_1")
72 print("Common of Revolution and Prism...")
73 Common_1 = geompy.MakeBoolean(Revolution_1, Prism_1, 1)
74 geompy.addToStudy(Common_1, "Common_1")
76 #Explode Common_1 on edges
77 CommonExplodedListEdges = geompy.SubShapeAll(Common_1, geompy.ShapeType["EDGE"])
78 for i in range(0, len(CommonExplodedListEdges)):
79 name = "Edge_"+str(i+1)
80 geompy.addToStudyInFather(Common_1, CommonExplodedListEdges[i], name)
83 print("Fillet creation...")
84 Fillet_1 = geompy.MakeFillet(Common_1, 10, geompy.ShapeType["EDGE"], [5])
85 geompy.addToStudy(Fillet_1, "Fillet_1")
88 print("Chamfer creation...")
89 cyl_face = geompy.GetFaceNearPoint( Fillet_1, geompy.MakeVertex( 50, 0, 45 ), theName='cyl_face')
90 cyl_face_id = geompy.GetSubShapeID( Fillet_1, cyl_face )
91 top_face = geompy.GetFaceNearPoint( Fillet_1, geompy.MakeVertex( 60, 0, 90 ), theName='top_face')
92 top_face_id = geompy.GetSubShapeID( Fillet_1, top_face )
93 Chamfer_1 = geompy.MakeChamferEdge(Fillet_1, 10, 10, cyl_face_id, top_face_id, theName='Chamfer_1' )
95 cyl_face = geompy.GetFaceNearPoint( Chamfer_1, geompy.MakeVertex( 80, 0, 85 ), theName='cyl_face')
96 cyl_face_id = geompy.GetSubShapeID( Chamfer_1, cyl_face )
97 top_face = geompy.GetFaceNearPoint( Chamfer_1, geompy.MakeVertex( 65, 0, 90 ), theName='top_face')
98 top_face_id = geompy.GetSubShapeID( Chamfer_1, top_face )
99 Chamfer_2 = geompy.MakeChamferEdge(Chamfer_1, 10, 10, cyl_face_id, top_face_id, theName='Chamfer_2' )
101 #Import of the shape from "slots.brep"
102 print("Import multi-rotation from the DATA_DIR/Shapes/Brep/slots.brep")
103 thePath = os.getenv("DATA_DIR")
104 theFileName = os.path.join( thePath,"Shapes","Brep","slots.brep")
105 theShapeForCut = geompy.ImportBREP(theFileName)
106 geompy.addToStudy(theShapeForCut, "slot.brep_1")
110 Cut_1 = geompy.MakeBoolean(Chamfer_2, theShapeForCut, 2)
111 Cut_1_ID = geompy.addToStudy(Cut_1, "Cut_1")
116 shape_mesh = salome.IDToObject( Cut_1_ID )
118 mesh = smesh.Mesh(shape_mesh, "Nut")
121 print("-------------------------- Average length")
123 algoReg1D = mesh.Segment()
124 hAvLength = algoReg1D.LocalLength(theAverageLength)
125 print(hAvLength.GetName())
126 print(hAvLength.GetId())
127 print(hAvLength.GetLength())
128 smesh.SetName(hAvLength, "AverageLength_"+str(theAverageLength))
130 print("-------------------------- MaxElementArea")
131 theMaxElementArea = 20
132 algoMef = mesh.Triangle(smeshBuilder.MEFISTO)
133 hArea = algoMef.MaxElementArea( theMaxElementArea )
134 print(hArea.GetName())
136 print(hArea.GetMaxElementArea())
137 smesh.SetName(hArea, "MaxElementArea_"+str(theMaxElementArea))
139 print("-------------------------- MaxElementVolume")
140 theMaxElementVolume = 150
141 algoNg = mesh.Tetrahedron(smeshBuilder.NETGEN)
142 hVolume = algoNg.MaxElementVolume( theMaxElementVolume )
143 print(hVolume.GetName())
144 print(hVolume.GetId())
145 print(hVolume.GetMaxElementVolume())
146 smesh.SetName(hVolume, "MaxElementVolume_"+str(theMaxElementVolume))
149 print("-------------------------- compute the mesh of the mechanic piece")
152 print("Information about the Nut:")
153 print("Number of nodes : ", mesh.NbNodes())
154 print("Number of edges : ", mesh.NbEdges())
155 print("Number of faces : ", mesh.NbFaces())
156 print("Number of triangles : ", mesh.NbTriangles())
157 print("Number of quadrangles : ", mesh.NbQuadrangles())
158 print("Number of volumes : ", mesh.NbVolumes())
159 print("Number of tetrahedrons: ", mesh.NbTetras())
161 salome.sg.updateObjBrowser()