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45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
# Free Borders
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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 open shell: a box without one plane
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box = geom_builder.MakeBox(0., 0., 0., 20., 20., 15.)
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FaceList = geom_builder.SubShapeAll(box, geom_builder.ShapeType["FACE"])
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FaceList.remove(FaceList[5])
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box = geom_builder.MakeShell(FaceList)
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idbox = geom_builder.addToStudy(box, "box")
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# create a mesh
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mesh = smesh_builder.Mesh(box, "Mesh_free_borders")
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algo = mesh.Segment()
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algo.NumberOfSegments(5)
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algo = mesh.Triangle()
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algo.MaxElementArea(20.)
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if not mesh.Compute(): raise Exception("Error when computing Mesh")
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# criterion : free borders
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aFilter = smesh_builder.GetFilter(SMESH.EDGE, SMESH.FT_FreeBorders)
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anIds = mesh.GetIdsFromFilter(aFilter)
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# print the result
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print("Criterion: Free borders Nb = ", len(anIds))
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j = 1
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for i in range(len(anIds)):
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if j > 20: j = 1; print("")
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print(anIds[i], end=' ')
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j = j + 1
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pass
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print("")
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# create a group
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aGroup = mesh.GetMesh().CreateGroup(SMESH.EDGE, "Free borders")
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aGroup.Add(anIds)
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