1 # -*- coding: iso-8859-1 -*-
2 # Copyright (C) 2007-2008 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.
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
23 # Tetrahedrization of the geometry generated by the Python script GEOM_Partition1.py
24 # Hypothesis and algorithms for the mesh generation are global
25 # -- Rayon de la bariere
33 #---------------------------------------------------------------
36 barier_radius = 5.6 / 2 # Rayon de la bariere
37 colis_radius = 1.0 / 2 # Rayon du colis
38 colis_step = 2.0 # Distance s
\89parant deux colis
39 cc_width = 0.11 # Epaisseur du complement de colisage
43 cc_radius = colis_radius + cc_width
44 colis_center = sqrt(2.0)*colis_step/2
55 p0 = geompy.MakeVertex(0.,0.,0.)
56 vz = geompy.MakeVectorDXDYDZ(0.,0.,1.)
60 barier = geompy.MakeCylinder(p0, vz, barier_radius, barier_height)
64 colis = geompy.MakeCylinder(p0, vz, colis_radius, barier_height)
65 cc = geompy.MakeCylinder(p0, vz, cc_radius, barier_height)
67 colis_cc = geompy.MakeCompound([colis, cc])
68 colis_cc = geompy.MakeTranslation(colis_cc, colis_center, 0.0, 0.0)
70 colis_cc_multi = geompy.MultiRotate1D(colis_cc, vz, 4)
74 Compound1 = geompy.MakeCompound([colis_cc_multi, barier])
75 SubShape_theShape = geompy.SubShapeAll(Compound1,geompy.ShapeType["SOLID"])
76 alveole = geompy.MakePartition(SubShape_theShape)
78 print "Analysis of the geometry to mesh (right after the Partition) :"
80 subShellList = geompy.SubShapeAll(alveole, geompy.ShapeType["SHELL"])
81 subFaceList = geompy.SubShapeAll(alveole, geompy.ShapeType["FACE"])
82 subEdgeList = geompy.SubShapeAll(alveole, geompy.ShapeType["EDGE"])
84 print "number of Shells in alveole : ", len(subShellList)
85 print "number of Faces in alveole : ", len(subFaceList)
86 print "number of Edges in alveole : ", len(subEdgeList)
88 subshapes = geompy.SubShapeAll(alveole, geompy.ShapeType["SHAPE"])
90 ## there are 9 subshapes
92 comp1 = geompy.MakeCompound( [ subshapes[0], subshapes[1] ] )
93 comp2 = geompy.MakeCompound( [ subshapes[2], subshapes[3] ] )
94 comp3 = geompy.MakeCompound( [ subshapes[4], subshapes[5] ] )
95 comp4 = geompy.MakeCompound( [ subshapes[6], subshapes[7] ] )
98 compGOs.append( comp1 )
99 compGOs.append( comp2 )
100 compGOs.append( comp3 )
101 compGOs.append( comp4 )
102 comp = geompy.MakeCompound( compGOs )
104 alveole = geompy.MakeCompound( [ comp, subshapes[8] ])
106 idalveole = geompy.addToStudy(alveole, "alveole")
108 print "Analysis of the geometry to mesh (right after the MakeCompound) :"
110 subShellList = geompy.SubShapeAll(alveole, geompy.ShapeType["SHELL"])
111 subFaceList = geompy.SubShapeAll(alveole, geompy.ShapeType["FACE"])
112 subEdgeList = geompy.SubShapeAll(alveole, geompy.ShapeType["EDGE"])
114 print "number of Shells in alveole : ", len(subShellList)
115 print "number of Faces in alveole : ", len(subFaceList)
116 print "number of Edges in alveole : ", len(subEdgeList)
118 status = geompy.CheckShape(alveole)
119 print " check status ", status
122 smesh.SetCurrentStudy(salome.myStudy)
124 # ---- init a Mesh with the alveole
125 shape_mesh = salome.IDToObject( idalveole )
127 mesh = smesh.Mesh(shape_mesh, "MeshAlveole")
129 print "-------------------------- create Hypothesis (In this case global hypothesis are used)"
131 print "-------------------------- NumberOfSegments"
133 numberOfSegments = 10
135 regular1D = mesh.Segment()
136 hypNbSeg = regular1D.NumberOfSegments(numberOfSegments)
137 print hypNbSeg.GetName()
138 print hypNbSeg.GetId()
139 print hypNbSeg.GetNumberOfSegments()
140 smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegments))
142 print "-------------------------- MaxElementArea"
146 mefisto2D = mesh.Triangle()
147 hypArea = mefisto2D.MaxElementArea(maxElementArea)
148 print hypArea.GetName()
149 print hypArea.GetId()
150 print hypArea.GetMaxElementArea()
151 smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
153 print "-------------------------- MaxElementVolume"
155 maxElementVolume = 0.5
157 netgen3D = mesh.Tetrahedron(smesh.NETGEN)
158 hypVolume = netgen3D.MaxElementVolume(maxElementVolume)
159 print hypVolume.GetName()
160 print hypVolume.GetId()
161 print hypVolume.GetMaxElementVolume()
162 smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume))
164 print "-------------------------- compute the mesh of alveole "
168 log=mesh.GetLog(0) # no erase trace
171 print "Information about the Mesh_mechanic:"
172 print "Number of nodes : ", mesh.NbNodes()
173 print "Number of edges : ", mesh.NbEdges()
174 print "Number of faces : ", mesh.NbFaces()
175 print "Number of triangles : ", mesh.NbTriangles()
176 print "Number of volumes : ", mesh.NbVolumes()
177 print "Number of tetrahedrons: ", mesh.NbTetras()
179 print "problem when computing the mesh"
181 salome.sg.updateObjBrowser(1)