1 # -*- coding: iso-8859-1 -*-
2 # Copyright (C) 2007-2016 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 # Tetrahedrization of the geometry union of 2 boxes having a face in common
25 # Hypothesis and algorithms for 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()
38 # ---- define 2 boxes box1 and box2
40 box1 = geompy.MakeBox(0., 0., 0., 100., 200., 300.)
42 idbox1 = geompy.addToStudy(box1, "box1")
44 print "Analysis of the geometry box1 :"
45 subShellList = geompy.SubShapeAll(box1, geompy.ShapeType["SHELL"])
46 subFaceList = geompy.SubShapeAll(box1, geompy.ShapeType["FACE"])
47 subEdgeList = geompy.SubShapeAll(box1, geompy.ShapeType["EDGE"])
49 print "number of Shells in box1 : ", len(subShellList)
50 print "number of Faces in box1 : ", len(subFaceList)
51 print "number of Edges in box1 : ", len(subEdgeList)
53 box2 = geompy.MakeBox(100., 0., 0., 200., 200., 300.)
55 idbox2 = geompy.addToStudy(box2, "box2")
57 print "Analysis of the geometry box2 :"
58 subShellList = geompy.SubShapeAll(box2, geompy.ShapeType["SHELL"])
59 subFaceList = geompy.SubShapeAll(box2, geompy.ShapeType["FACE"])
60 subEdgeList = geompy.SubShapeAll(box2, geompy.ShapeType["EDGE"])
62 print "number of Shells in box2 : ", len(subShellList)
63 print "number of Faces in box2 : ", len(subFaceList)
64 print "number of Edges in box2 : ", len(subEdgeList)
66 # append the tow boxes to make ine shel, referrencing only once
67 # the internal interface
69 shell = geompy.MakePartition([box1, box2])
70 idshell = geompy.addToStudy(shell, "shell")
72 print "Analysis of the geometry shell (union of box1 and box2) :"
73 subShellList = geompy.SubShapeAll(shell, geompy.ShapeType["SHELL"])
74 subFaceList = geompy.SubShapeAll(shell, geompy.ShapeType["FACE"])
75 subEdgeList = geompy.SubShapeAll(shell, geompy.ShapeType["EDGE"])
77 print "number of Shells in shell : ", len(subShellList)
78 print "number of Faces in shell : ", len(subFaceList)
79 print "number of Edges in shell : ", len(subEdgeList)
82 ### ---------------------------- SMESH --------------------------------------
84 # ---- init a Mesh with the shell
86 mesh = smesh.Mesh(shell, "MeshBox2")
89 # ---- set Hypothesis and Algorithm
91 print "-------------------------- NumberOfSegments"
95 regular1D = mesh.Segment()
96 hypNbSeg = regular1D.NumberOfSegments(numberOfSegments)
97 print hypNbSeg.GetName()
98 print hypNbSeg.GetId()
99 print hypNbSeg.GetNumberOfSegments()
100 smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegments))
102 print "-------------------------- MaxElementArea"
106 mefisto2D = mesh.Triangle()
107 hypArea = mefisto2D.MaxElementArea(maxElementArea)
108 print hypArea.GetName()
109 print hypArea.GetId()
110 print hypArea.GetMaxElementArea()
111 smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
113 print "-------------------------- MaxElementVolume"
115 maxElementVolume = 500
117 netgen3D = mesh.Tetrahedron(smeshBuilder.NETGEN)
118 hypVolume = netgen3D.MaxElementVolume(maxElementVolume)
119 print hypVolume.GetName()
120 print hypVolume.GetId()
121 print hypVolume.GetMaxElementVolume()
122 smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume))
124 print "-------------------------- compute shell"
128 log = mesh.GetLog(0) # no erase trace
131 print "Information about the MeshBox2:"
132 print "Number of nodes : ", mesh.NbNodes()
133 print "Number of edges : ", mesh.NbEdges()
134 print "Number of faces : ", mesh.NbFaces()
135 print "Number of triangles : ", mesh.NbTriangles()
136 print "Number of volumes : ", mesh.NbVolumes()
137 print "Number of tetrahedrons: ", mesh.NbTetras()
139 print "probleme when computing the mesh"
141 salome.sg.updateObjBrowser()