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https://git.salome-platform.org/gitpub/modules/smesh.git
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40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
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# Offset 2D mesh, sub-mesh, group or elements from 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(100, 100, 100)
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## -----------
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##
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## Offset mesh
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##
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## -----------
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init_mesh = smesh_builder.Mesh(box, "box")
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init_mesh.AutomaticTetrahedralization()
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init_mesh.Compute()
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#Offset triangular elements in mesh (expand the entire mesh)
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offset = 20
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mesh, mesh_group = init_mesh.Offset( init_mesh, offset, MakeGroups=False, CopyElements=False )
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assert isinstance( mesh, smeshBuilder.Mesh )
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assert len( mesh_group ) == 0
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offsetMeshArea = smesh_builder.GetArea(mesh)
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#Offset triangular elements in mesh (shrink the entire mesh)
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offset = -20
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mesh, mesh_group = init_mesh.Offset( init_mesh, offset, MakeGroups=False, CopyElements=False, NewMeshName="MeshShrink" )
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assert isinstance( mesh, smeshBuilder.Mesh )
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assert len( mesh_group ) == 0
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assert mesh.GetName() == "MeshShrink"
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shrinkMeshArea = smesh_builder.GetArea(mesh)
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assert offsetMeshArea > shrinkMeshArea
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