1 # -*- coding: iso-8859-1 -*-
2 # Copyright (C) 2007-2024 CEA, EDF, 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 # Tetrahedrization of a simple box. Hypothesis and algorithms for
25 # the mesh generation are global
30 from salome.geom import geomBuilder
31 geompy = geomBuilder.New()
33 import SMESH, SALOMEDS
34 from salome.smesh import smeshBuilder
35 smesh = smeshBuilder.New()
39 box = geompy.MakeBox(0., 0., 0., 100., 200., 300.)
41 idbox = geompy.addToStudy(box, "box")
43 print("Analysis of the geometry box :")
44 subShellList = geompy.SubShapeAll(box, geompy.ShapeType["SHELL"])
45 subFaceList = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
46 subEdgeList = geompy.SubShapeAll(box, geompy.ShapeType["EDGE"])
48 print("number of Shells in box : ", len(subShellList))
49 print("number of Faces in box : ", len(subFaceList))
50 print("number of Edges in box : ", len(subEdgeList))
53 ### ---------------------------- SMESH --------------------------------------
55 # ---- init a Mesh with the box
57 mesh = smesh.Mesh(box, "MeshBox")
59 # ---- set Hypothesis and Algorithm
61 print("-------------------------- NumberOfSegments")
64 regular1D = mesh.Segment()
65 hypNbSeg = regular1D.NumberOfSegments(numberOfSegments)
66 print(hypNbSeg.GetName())
67 print(hypNbSeg.GetId())
68 print(hypNbSeg.GetNumberOfSegments())
69 smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegments))
71 print("-------------------------- MaxElementArea")
75 triangle = mesh.Triangle()
76 hypArea = triangle.MaxElementArea(maxElementArea)
77 print(hypArea.GetName())
78 print(hypArea.GetId())
79 print(hypArea.GetMaxElementArea())
80 smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
82 print("-------------------------- MaxElementVolume")
84 maxElementVolume = 500
86 netgen3D = mesh.Tetrahedron(smeshBuilder.NETGEN)
87 hypVolume = netgen3D.MaxElementVolume(maxElementVolume)
88 print(hypVolume.GetName())
89 print(hypVolume.GetId())
90 print(hypVolume.GetMaxElementVolume())
91 smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume))
93 print("-------------------------- compute the mesh of the box")
97 raise Exception("Error when computing Mesh")
99 log = mesh.GetLog(0) # no erase trace
100 # for linelog in log:
102 print("Information about the MeshBox:")
103 print("Number of nodes : ", mesh.NbNodes())
104 print("Number of edges : ", mesh.NbEdges())
105 print("Number of faces : ", mesh.NbFaces())
106 print("Number of triangles : ", mesh.NbTriangles())
107 print("Number of volumes : ", mesh.NbVolumes())
108 print("Number of tetrahedrons: ", mesh.NbTetras())
110 salome.sg.updateObjBrowser()