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https://git.salome-platform.org/gitpub/modules/smesh.git
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113 lines
3.4 KiB
Python
113 lines
3.4 KiB
Python
# Create boundary elements
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import salome
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salome.salome_init_without_session()
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import SMESH
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from salome.geom import geomBuilder
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from salome.smesh import smeshBuilder
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geom_builder = geomBuilder.New()
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smesh_builder = smeshBuilder.New()
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box = geom_builder.MakeBoxDXDYDZ(100, 100, 100)
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gFaces = geom_builder.SubShapeAllSorted(box, geom_builder.ShapeType["FACE"])
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f1,f2 = gFaces[0],gFaces[1]
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geom_builder.addToStudy(box,"box")
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geom_builder.addToStudyInFather(box,f1,"face1")
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geom_builder.addToStudyInFather(box,f2,"face2")
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twoFaces = geom_builder.MakeCompound([f1,f2])
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## -----------
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##
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## 2D from 3D
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##
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## -----------
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dim = SMESH.BND_2DFROM3D
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init_mesh = smesh_builder.Mesh(box, "box")
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init_mesh.AutomaticHexahedralization() # it makes 3 x 3 x 3 hexahedrons
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# remove some faces
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faces = init_mesh.GetElementsByType( SMESH.FACE )
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nb_faces = len( faces )
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rm_face = faces[ : nb_faces // 2]
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init_mesh.RemoveElements( rm_face )
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# restore boundary in this mesh
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mesh = smesh_builder.CopyMesh( init_mesh, "2D from 3D")
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groupName = "bnd 2D"
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nb, new_mesh, new_group = mesh.MakeBoundaryElements(dim, groupName)
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# restore boundary (only) in other mesh
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meshName = "2D boundary of " + init_mesh.GetName()
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName)
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# restore boundary in mesh copy
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meshName = init_mesh.GetName() + " + boundary"
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName, toCopyAll=True)
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## -----------
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##
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## 1D from 2D
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##
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## -----------
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dim = SMESH.BND_1DFROM2D
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init_mesh = smesh_builder.Mesh(f1, "2D mesh")
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init_mesh.AutomaticHexahedralization()
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# remove some edges
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edges = init_mesh.GetElementsByType( SMESH.EDGE )
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nb_edges = len( edges )
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rm_edge = edges[ : nb_edges // 2]
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init_mesh.RemoveElements( rm_edge )
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# restore boundary edges in this mesh
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mesh = smesh_builder.CopyMesh( init_mesh, "1D from 2D")
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groupName = "bnd 1D"
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nb, new_mesh, new_group = mesh.MakeBoundaryElements(dim, groupName)
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# restore boundary edges (only) in other mesh
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meshName = "1D boundary of " + init_mesh.GetName()
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName)
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# restore boundary edges in mesh copy
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meshName = init_mesh.GetName() + " + boundary"
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName, toCopyAll=True)
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## ------------------
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##
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## 1D from 2D GROUPS
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##
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## ------------------
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dim = SMESH.BND_1DFROM3D
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init_mesh = smesh_builder.Mesh(box, "box")
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init_mesh.AutomaticHexahedralization() # it makes 3 x 3 x 3 hexahedrons
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# remove all edges
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rm_edges = init_mesh.GetElementsByType( SMESH.EDGE )
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init_mesh.RemoveElements( rm_edges )
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# make groups of faces
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fGroup1 = init_mesh.Group( f1, "f1" )
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fGroup2 = init_mesh.Group( f2, "f2" )
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# make 1D boundary around groups in this mesh
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mesh = smesh_builder.CopyMesh( init_mesh, "1D from 2D groups", toCopyGroups=True)
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groups = mesh.GetGroups()
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nb, new_mesh, new_group = mesh.MakeBoundaryElements(dim, groupName,groups=groups)
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# make 1D boundary (only) in other mesh
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meshName = "boundary from groups of " + init_mesh.GetName()
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groups = init_mesh.GetGroups()
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName,groups=groups)
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# make 1D boundary in mesh copy
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meshName = init_mesh.GetName() + " + boundary from groups"
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nb, new_mesh, new_group = init_mesh.MakeBoundaryElements(dim, groupName, meshName,
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groups=groups, toCopyAll=True)
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