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https://git.salome-platform.org/gitpub/modules/smesh.git
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213 lines
6.6 KiB
Python
213 lines
6.6 KiB
Python
# Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
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#
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#
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#
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# File : SMESH_withHole.py
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# Author : Lucien PIGNOLONI
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# Module : SMESH
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# $Header$
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import salome
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import geompy
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geom = geompy.geom
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smesh = salome.lcc.FindOrLoadComponent("FactoryServer", "SMESH")
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smesh.SetCurrentStudy(salome.myStudy)
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smeshgui = salome.ImportComponentGUI("SMESH")
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smeshgui.Init(salome.myStudyId)
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import StdMeshers
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import NETGENPlugin
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# ---------------------------- GEOM --------------------------------------
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# ---- define contigous arcs and segment to define a closed wire
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p1 = geompy.MakeVertex( 100.0, 0.0, 0.0 )
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p2 = geompy.MakeVertex( 50.0, 50.0, 0.0 )
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p3 = geompy.MakeVertex( 100.0, 100.0, 0.0 )
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arc1 = geompy.MakeArc( p1, p2, p3 )
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p4 = geompy.MakeVertex( 170.0, 100.0, 0.0 )
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seg1 = geompy.MakeVector( p3, p4 )
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p5 = geompy.MakeVertex( 200.0, 70.0, 0.0 )
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p6 = geompy.MakeVertex( 170.0, 40.0, 0.0 )
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arc2 = geompy.MakeArc( p4, p5, p6 )
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p7 = geompy.MakeVertex( 120.0, 30.0, 0.0 )
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arc3 = geompy.MakeArc( p6, p7, p1 )
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# ---- define a closed wire with arcs and segment
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List1 = []
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List1.append( arc1 )
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List1.append( seg1 )
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List1.append( arc2 )
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List1.append( arc3 )
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wire1 = geompy.MakeWire( List1 )
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Id_wire1 = geompy.addToStudy( wire1, "wire1" )
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# ---- define a planar face with wire
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WantPlanarFace = 1 #True
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face1 = geompy.MakeFace( wire1, WantPlanarFace )
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Id_face1 = geompy.addToStudy( face1, "face1" )
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# ---- create a shape by extrusion
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pO = geompy.MakeVertex( 0.0, 0.0, 0.0 )
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pz = geompy.MakeVertex( 0.0, 0.0, 100.0 )
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vz = geompy.MakeVector( pO, pz )
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prism1 = geompy.MakePrismVecH( face1, vz, 100.0 )
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Id_prism1 = geompy.addToStudy( prism1, "prism1")
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# ---- create two cylinders
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pc1 = geompy.MakeVertex( 90.0, 50.0, -40.0 )
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pc2 = geompy.MakeVertex( 170.0, 70.0, -40.0 )
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radius = 20.0
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height = 180.0
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cyl1 = geompy.MakeCylinder( pc1, vz, radius, height )
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cyl2 = geompy.MakeCylinder( pc2, vz, radius, height )
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Id_Cyl1 = geompy.addToStudy( cyl1, "cyl1" )
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Id_Cyl2 = geompy.addToStudy( cyl2, "cyl2" )
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# ---- cut with cyl1
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shape = geompy.MakeBoolean( prism1, cyl1, 2 )
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# ---- fuse with cyl2 to obtain the final mechanic piece :)
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mechanic = geompy.MakeBoolean( shape, cyl2, 3 )
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Id_mechanic = geompy.addToStudy( mechanic, "mechanic" )
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# ---- Analysis of the geometry
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print "Analysis of the geometry mechanic :"
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subShellList = geompy.SubShapeAll(mechanic,geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(mechanic,geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(mechanic,geompy.ShapeType["EDGE"])
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print "number of Shells in mechanic : ",len(subShellList)
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print "number of Faces in mechanic : ",len(subFaceList)
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print "number of Edges in mechanic : ",len(subEdgeList)
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### ---------------------------- SMESH --------------------------------------
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print "-------------------------- NumberOfSegments"
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numberOfSegment = 10
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hypNbSeg = smesh.CreateHypothesis( "NumberOfSegments", "libStdMeshersEngine.so" )
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hypNbSeg.SetNumberOfSegments( numberOfSegment )
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print hypNbSeg.GetName()
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print hypNbSeg.GetId()
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print hypNbSeg.GetNumberOfSegments()
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smeshgui.SetName(salome.ObjectToID(hypNbSeg), "NumberOfSegments_10")
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print "-------------------------- MaxElementArea"
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maxElementArea = 20
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hypArea = smesh.CreateHypothesis( "MaxElementArea", "libStdMeshersEngine.so" )
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hypArea.SetMaxElementArea( maxElementArea )
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print hypArea.GetName()
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print hypArea.GetId()
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print hypArea.GetMaxElementArea()
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smeshgui.SetName(salome.ObjectToID(hypArea), "MaxElementArea_20")
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print "-------------------------- MaxElementVolume"
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maxElementVolume = 20
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hypVolume = smesh.CreateHypothesis( "MaxElementVolume", "libStdMeshersEngine.so" )
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hypVolume.SetMaxElementVolume( maxElementVolume )
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print hypVolume.GetName()
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print hypVolume.GetId()
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print hypVolume.GetMaxElementVolume()
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smeshgui.SetName(salome.ObjectToID(hypVolume), "MaxElementVolume_20")
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print "-------------------------- Regular_1D"
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algoReg1D = smesh.CreateHypothesis( "Regular_1D", "libStdMeshersEngine.so" )
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listHyp =algoReg1D.GetCompatibleHypothesis()
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for hyp in listHyp:
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print hyp
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print algoReg1D.GetName()
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print algoReg1D.GetId()
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smeshgui.SetName(salome.ObjectToID(algoReg1D), "Regular_1D")
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print "-------------------------- MEFISTO_2D"
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algoMef = smesh.CreateHypothesis( "MEFISTO_2D", "libStdMeshersEngine.so" )
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listHyp = algoMef.GetCompatibleHypothesis()
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for hyp in listHyp:
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print hyp
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print algoMef.GetName()
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print algoMef.GetId()
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smeshgui.SetName(salome.ObjectToID(algoMef), "MEFISTO_2D")
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print "-------------------------- NETGEN_3D"
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algoNg = smesh.CreateHypothesis( "NETGEN_3D", "libNETGENEngine.so" )
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listHyp = algoNg.GetCompatibleHypothesis()
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for hyp in listHyp:
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print hyp
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print algoNg.GetName()
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print algoNg.GetId()
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smeshgui.SetName(salome.ObjectToID(algoNg), "NETGEN_3D")
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print "-------------------------- add hypothesis to main mechanic"
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shape_mesh = salome.IDToObject( Id_mechanic )
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mesh = smesh.CreateMesh(shape_mesh)
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idmesh = salome.ObjectToID(mesh)
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smeshgui.SetName( idmesh, "Mesh_mechanic_tetra" )
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mesh.AddHypothesis( shape_mesh, hypNbSeg ) # nb segments
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mesh.AddHypothesis( shape_mesh, hypArea ) # max area
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mesh.AddHypothesis( shape_mesh, hypVolume ) # max volume
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mesh.AddHypothesis( shape_mesh, algoReg1D ) # Regular 1D/wire discretisation
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mesh.AddHypothesis( shape_mesh, algoMef ) # MEFISTO 2D
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mesh.AddHypothesis( shape_mesh, algoNg ) # NETGEN 3D
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print "-------------------------- compute the mesh of the mechanic piece"
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smesh.Compute(mesh,shape_mesh)
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print "Information about the Mesh_mechanic_tetra:"
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print "Number of nodes : ", mesh.NbNodes()
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print "Number of edges : ", mesh.NbEdges()
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print "Number of faces : ", mesh.NbFaces()
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print "Number of triangles : ", mesh.NbTriangles()
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print "Number of quadrangles: ", mesh.NbQuadrangles()
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print "Number of volumes : ", mesh.NbVolumes()
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print "Number of tetrahedrons: ", mesh.NbTetras()
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salome.sg.updateObjBrowser(1)
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