1 # Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
3 # Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 # This library is free software; you can redistribute it and/or
7 # modify it under the terms of the GNU Lesser General Public
8 # License as published by the Free Software Foundation; either
9 # version 2.1 of the License.
11 # This library is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # Lesser General Public License for more details.
16 # You should have received a copy of the GNU Lesser General Public
17 # License along with this library; if not, write to the Free Software
18 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 # Tetrahedrization of the geometry union of 2 boxes having a face in common
23 # Hypothesis and algorithms for the mesh generation are global
30 # ---- define 2 boxes box1 and box2
32 box1 = geompy.MakeBox(0., 0., 0., 100., 200., 300.)
34 idbox1 = geompy.addToStudy(box1, "box1")
36 print "Analysis of the geometry box1 :"
37 subShellList = geompy.SubShapeAll(box1, geompy.ShapeType["SHELL"])
38 subFaceList = geompy.SubShapeAll(box1, geompy.ShapeType["FACE"])
39 subEdgeList = geompy.SubShapeAll(box1, geompy.ShapeType["EDGE"])
41 print "number of Shells in box1 : ", len(subShellList)
42 print "number of Faces in box1 : ", len(subFaceList)
43 print "number of Edges in box1 : ", len(subEdgeList)
45 box2 = geompy.MakeBox(100., 0., 0., 200., 200., 300.)
47 idbox2 = geompy.addToStudy(box2, "box2")
49 print "Analysis of the geometry box2 :"
50 subShellList = geompy.SubShapeAll(box2, geompy.ShapeType["SHELL"])
51 subFaceList = geompy.SubShapeAll(box2, geompy.ShapeType["FACE"])
52 subEdgeList = geompy.SubShapeAll(box2, geompy.ShapeType["EDGE"])
54 print "number of Shells in box2 : ", len(subShellList)
55 print "number of Faces in box2 : ", len(subFaceList)
56 print "number of Edges in box2 : ", len(subEdgeList)
58 # append the tow boxes to make ine shel, referrencing only once
59 # the internal interface
61 shell = geompy.MakePartition([box1, box2])
62 idshell = geompy.addToStudy(shell, "shell")
64 print "Analysis of the geometry shell (union of box1 and box2) :"
65 subShellList = geompy.SubShapeAll(shell, geompy.ShapeType["SHELL"])
66 subFaceList = geompy.SubShapeAll(shell, geompy.ShapeType["FACE"])
67 subEdgeList = geompy.SubShapeAll(shell, geompy.ShapeType["EDGE"])
69 print "number of Shells in shell : ", len(subShellList)
70 print "number of Faces in shell : ", len(subFaceList)
71 print "number of Edges in shell : ", len(subEdgeList)
74 ### ---------------------------- SMESH --------------------------------------
76 # ---- init a Mesh with the shell
78 mesh = smesh.Mesh(shell, "MeshBox2")
81 # ---- set Hypothesis and Algorithm
83 print "-------------------------- NumberOfSegments"
87 regular1D = mesh.Segment()
88 hypNbSeg = regular1D.NumberOfSegments(numberOfSegments)
89 print hypNbSeg.GetName()
90 print hypNbSeg.GetId()
91 print hypNbSeg.GetNumberOfSegments()
92 smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegments))
94 print "-------------------------- MaxElementArea"
98 mefisto2D = mesh.Triangle()
99 hypArea = mefisto2D.MaxElementArea(maxElementArea)
100 print hypArea.GetName()
101 print hypArea.GetId()
102 print hypArea.GetMaxElementArea()
103 smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
105 print "-------------------------- MaxElementVolume"
107 maxElementVolume = 500
109 netgen3D = mesh.Tetrahedron(smesh.NETGEN)
110 hypVolume = netgen3D.MaxElementVolume(maxElementVolume)
111 print hypVolume.GetName()
112 print hypVolume.GetId()
113 print hypVolume.GetMaxElementVolume()
114 smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume))
117 salome.sg.updateObjBrowser(1)
119 print "-------------------------- compute shell"
123 log = mesh.GetLog(0) # no erase trace
126 print "Information about the MeshBox2:"
127 print "Number of nodes : ", mesh.NbNodes()
128 print "Number of edges : ", mesh.NbEdges()
129 print "Number of faces : ", mesh.NbFaces()
130 print "Number of triangles : ", mesh.NbTriangles()
131 print "Number of volumes : ", mesh.NbVolumes()
132 print "Number of tetrahedrons: ", mesh.NbTetras()
134 print "probleme when computing the mesh"