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https://git.salome-platform.org/gitpub/modules/smesh.git
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90 lines
2.6 KiB
Python
90 lines
2.6 KiB
Python
# Duplicate nodes or/and 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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# Create a box
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box = geom_builder.MakeBox(0., 0., 0., 100., 200., 300.)
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# Define hexa mesh on a box
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mesh = smesh_builder.Mesh(box, "Mesh")
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mesh.Segment().NumberOfSegments(7)
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mesh.Quadrangle()
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mesh.Hexahedron()
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# Compute mesh
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if not mesh.Compute(): raise Exception("Error when computing Mesh")
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# Duplicate nodes only
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# Nodes to duplicate
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nodes1 = mesh.CreateEmptyGroup( SMESH.NODE, 'nodes1' )
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nodes1.Add( [ 119, 125, 131, 137 ] )
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# Group of faces to replace nodes with new ones
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faces1 = mesh.CreateEmptyGroup( SMESH.FACE, 'faces1' )
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faces1.Add( [ 144, 151, 158 ] )
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# Duplicate nodes
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print("\nMesh before the first nodes duplication:")
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print("Nodes : ", mesh.NbNodes())
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print("Edges : ", mesh.NbEdges())
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print("Quadrangles : ", mesh.NbQuadrangles())
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groupOfCreatedNodes = mesh.DoubleNodeGroup(nodes1, faces1, theMakeGroup=True)
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print("New nodes:", groupOfCreatedNodes.GetIDs())
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print("\nMesh after the first nodes duplication:")
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print("Nodes : ", mesh.NbNodes())
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print("Edges : ", mesh.NbEdges())
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print("Quadrangles : ", mesh.NbQuadrangles())
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# Duplicate nodes and border elements
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# Edges to duplicate
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edges = mesh.CreateEmptyGroup( SMESH.EDGE, 'edges' )
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edges.Add( [ 32, 33, 34 ] )
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# Nodes not to duplicate
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nodes2 = mesh.CreateEmptyGroup( SMESH.NODE, 'nodes2' )
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nodes2.Add( [ 35, 38 ] )
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# Group of faces to replace nodes with new ones
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faces2 = mesh.CreateEmptyGroup( SMESH.FACE, 'faces2' )
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faces2.Add( [ 141, 148, 155 ] )
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# Duplicate nodes
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print("\nMesh before the second nodes duplication:")
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print("Nodes : ", mesh.NbNodes())
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print("Edges : ", mesh.NbEdges())
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print("Quadrangles : ", mesh.NbQuadrangles())
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groupOfNewEdges = mesh.DoubleNodeElemGroup( edges, nodes2, faces2, theMakeGroup=True )
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print("New edges:", groupOfNewEdges.GetIDs())
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print("\nMesh after the second nodes duplication:")
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print("Nodes : ", mesh.NbNodes())
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print("Edges : ", mesh.NbEdges())
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print("Quadrangles : ", mesh.NbQuadrangles())
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# Duplicate elements only
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# Duplicate all faces and make a group of new faces.
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# If a mesh is given to DoubleElements(), all elements of the greatest dimension are duplicated
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newFacesGroup = mesh.DoubleElements( mesh, "newFacesGroup" )
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# Duplicate edges contained in the group "edges" and add new edges to this group
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mesh.DoubleElements( edges, edges.GetName() )
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# Duplicate two first edges of the mesh
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mesh.DoubleElements([ 1, 2 ])
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