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45 lines
1.7 KiB
Python
45 lines
1.7 KiB
Python
# Create a Group on Filter
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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(10,10,10)
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# make a mesh with quadrangles of different area in range [1,16]
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mesh = smesh_builder.Mesh(box,"Quad mesh")
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hyp1D = mesh.Segment().StartEndLength( 1, 4 )
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mesh.Quadrangle()
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if not mesh.Compute(): raise Exception("Error when computing Mesh")
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# create a group on filter selecting faces of medium size
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critaria = [ \
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smesh_builder.GetCriterion(SMESH.FACE, SMESH.FT_Area, ">", 1.1, BinaryOp=SMESH.FT_LogicalAND ),
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smesh_builder.GetCriterion(SMESH.FACE, SMESH.FT_Area, "<", 15.0 )
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]
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filt = smesh_builder.GetFilterFromCriteria( critaria )
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filtGroup = mesh.GroupOnFilter( SMESH.FACE, "group on filter", filt )
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print("Group on filter contains %s elements" % filtGroup.Size())
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# group on filter is updated if the mesh is modified
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hyp1D.SetStartLength( 2.5 )
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hyp1D.SetEndLength( 2.5 )
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if not mesh.Compute(): raise Exception("Error when computing Mesh")
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print("After mesh change, group on filter contains %s elements" % filtGroup.Size())
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# set a new filter defining the group
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filt2 = smesh_builder.GetFilter( SMESH.FACE, SMESH.FT_RangeOfIds, "1-50" )
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filtGroup.SetFilter( filt2 )
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print("With a new filter, group on filter contains %s elements" % filtGroup.Size())
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# group is updated at modification of the filter
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filt2.SetCriteria( [ smesh_builder.GetCriterion( SMESH.FACE, SMESH.FT_RangeOfIds, "1-70" )])
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filtIDs3 = filtGroup.GetIDs()
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print("After filter modification, group on filter contains %s elements" % filtGroup.Size())
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