mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-11-14 01:28:34 +05:00
201 lines
5.9 KiB
Python
201 lines
5.9 KiB
Python
#
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# Tetrahedrization of the geometry generated by the Python script GEOM_Partition1.py
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# Hypothesis and algorithms for the mesh generation are global
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#
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#%Make geometry (like CEA script (A1)) using Partition algorithm% from OCC
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# -- Rayon de la bariere
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import salome
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import geompy
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from math import sqrt
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import StdMeshers
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import NETGENPlugin
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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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#---------------------------------------------------------------
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barier_height = 7.0
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barier_radius = 5.6 / 2 # Rayon de la bariere
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colis_radius = 1.0 / 2 # Rayon du colis
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colis_step = 2.0 # Distance s‰parant deux colis
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cc_width = 0.11 # Epaisseur du complement de colisage
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# --
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cc_radius = colis_radius + cc_width
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colis_center = sqrt(2.0)*colis_step/2
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# --
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boolean_common = 1
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boolean_cut = 2
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boolean_fuse = 3
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boolean_section = 4
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# --
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p0 = geompy.MakeVertex(0.,0.,0.)
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vz = geompy.MakeVectorDXDYDZ(0.,0.,1.)
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# --
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barier = geompy.MakeCylinder(p0, vz, barier_radius, barier_height)
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# --
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colis = geompy.MakeCylinder(p0, vz, colis_radius, barier_height)
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cc = geompy.MakeCylinder(p0, vz, cc_radius, barier_height)
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colis_cc = geompy.MakeCompound([colis, cc])
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colis_cc = geompy.MakeTranslation(colis_cc, colis_center, 0.0, 0.0)
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colis_cc_multi = geompy.MultiRotate1D(colis_cc, vz, 4)
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# --
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alveole = geompy.MakePartition([colis_cc_multi, barier])
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print "Analysis of the geometry to mesh (right after the Partition) :"
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subShellList = geompy.SubShapeAll(alveole, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(alveole, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(alveole, geompy.ShapeType["EDGE"])
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print "number of Shells in alveole : ", len(subShellList)
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print "number of Faces in alveole : ", len(subFaceList)
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print "number of Edges in alveole : ", len(subEdgeList)
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subshapes = geompy.SubShapeAll(alveole, geompy.ShapeType["SHAPE"])
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## there are 9 subshapes
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comp1 = geompy.MakeCompound( [ subshapes[0], subshapes[1] ] )
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comp2 = geompy.MakeCompound( [ subshapes[2], subshapes[3] ] )
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comp3 = geompy.MakeCompound( [ subshapes[4], subshapes[5] ] )
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comp4 = geompy.MakeCompound( [ subshapes[6], subshapes[7] ] )
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compGOs = []
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compGOs.append( comp1 )
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compGOs.append( comp2 )
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compGOs.append( comp3 )
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compGOs.append( comp4 )
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comp = geompy.MakeCompound( compGOs )
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alveole = geompy.MakeCompound( [ comp, subshapes[8] ])
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idalveole = geompy.addToStudy(alveole, "alveole")
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print "Analysis of the geometry to mesh (right after the MakeCompound) :"
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subShellList = geompy.SubShapeAll(alveole, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(alveole, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(alveole, geompy.ShapeType["EDGE"])
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print "number of Shells in alveole : ", len(subShellList)
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print "number of Faces in alveole : ", len(subFaceList)
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print "number of Edges in alveole : ", len(subEdgeList)
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status = geompy.CheckShape(alveole)
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print " check status ", status
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# ---- launch SMESH
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print "-------------------------- create Hypothesis (In this case global hypothesis are used)"
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print "-------------------------- NumberOfSegments"
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numberOfSegments = 10
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hypNbSeg = smesh.CreateHypothesis("NumberOfSegments", "libStdMeshersEngine.so")
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hypNbSeg.SetNumberOfSegments(numberOfSegments)
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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 = 0.1
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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_0.1")
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print "-------------------------- MaxElementVolume"
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maxElementVolume = 0.5
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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_0.5")
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print "-------------------------- create Algorithms"
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print "-------------------------- Regular_1D"
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regular1D = smesh.CreateHypothesis("Regular_1D", "libStdMeshersEngine.so")
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smeshgui.SetName(salome.ObjectToID(regular1D), "Wire Discretisation")
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print "-------------------------- MEFISTO_2D"
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mefisto2D = smesh.CreateHypothesis("MEFISTO_2D", "libStdMeshersEngine.so")
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smeshgui.SetName(salome.ObjectToID(mefisto2D), "MEFISTO_2D")
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print "-------------------------- NETGEN_3D"
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netgen3D = smesh.CreateHypothesis("NETGEN_3D", "libNETGENEngine.so")
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smeshgui.SetName(salome.ObjectToID(netgen3D), "NETGEN_3D")
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# ---- init a Mesh with the alveole
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shape_mesh = salome.IDToObject( idalveole )
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mesh = smesh.CreateMesh(shape_mesh)
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smeshgui.SetName(salome.ObjectToID(mesh), "MeshAlveole")
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# ---- add hypothesis to alveole
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print "-------------------------- add hypothesis to alveole"
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mesh.AddHypothesis(shape_mesh,regular1D)
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mesh.AddHypothesis(shape_mesh,hypNbSeg)
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mesh.AddHypothesis(shape_mesh,mefisto2D)
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mesh.AddHypothesis(shape_mesh,hypArea)
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mesh.AddHypothesis(shape_mesh,netgen3D)
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mesh.AddHypothesis(shape_mesh,hypVolume)
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print "-------------------------- compute the mesh of alveole "
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ret = smesh.Compute(mesh,shape_mesh)
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if ret != 0:
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log=mesh.GetLog(0) # no erase trace
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for linelog in log:
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print linelog
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print "Information about the Mesh_mechanic:"
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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 volumes : ", mesh.NbVolumes()
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print "Number of tetrahedrons: ", mesh.NbTetras()
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else:
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print "problem when computing the mesh"
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salome.sg.updateObjBrowser(1)
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