2022-04-11 18:28:01 +05:00
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# Double nodes on groups boundaries
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# This example represents an iron cable (a thin cylinder) in a concrete block (a big cylinder).
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# The big cylinder is defined by two geometric volumes.
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import salome
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salome.salome_init_without_session()
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import GEOM
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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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# geometry
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O = geom_builder.MakeVertex(0, 0, 0)
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OX = geom_builder.MakeVectorDXDYDZ(1, 0, 0)
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OY = geom_builder.MakeVectorDXDYDZ(0, 1, 0)
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OZ = geom_builder.MakeVectorDXDYDZ(0, 0, 1)
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Vertex_1 = geom_builder.MakeVertex(50, 0, 0)
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Cylinder_1 = geom_builder.MakeCylinder(O, OX, 10, 500)
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Cylinder_2 = geom_builder.MakeCylinder(Vertex_1, OX, 100, 400)
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Vertex_2 = geom_builder.MakeVertex(-200, -200, -200)
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Vertex_3 = geom_builder.MakeVertex(250, 200, 200)
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Box_1 = geom_builder.MakeBoxTwoPnt(Vertex_2, Vertex_3)
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Fuse_1 = geom_builder.MakeFuse(Cylinder_1, Cylinder_2)
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Partition_1 = geom_builder.MakePartition([Fuse_1], [Cylinder_1, Box_1], [], [], geom_builder.ShapeType["SOLID"], 0, [], 0)
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[Solid_1,Solid_2] = geom_builder.GetShapesOnShape(Cylinder_1, Partition_1, geom_builder.ShapeType["SOLID"], GEOM.ST_IN)
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[Solid_3,Solid_4] = geom_builder.GetShapesOnShape(Cylinder_2, Partition_1, geom_builder.ShapeType["SOLID"], GEOM.ST_IN)
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Vertex_4 = geom_builder.MakeVertex(450, 0, 0)
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Vertex_5 = geom_builder.MakeVertex(500, 0, 0)
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Vertex_6 = geom_builder.MakeVertex(550, 0, 0)
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vec1 = geom_builder.MakeVector(Vertex_4, Vertex_5)
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vec2 = geom_builder.MakeVector(Vertex_5, Vertex_6)
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[Face_1] = geom_builder.GetShapesOnPlane(Partition_1, geom_builder.ShapeType["FACE"], vec1, GEOM.ST_ON)
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[Face_2] = geom_builder.GetShapesOnPlane(Partition_1, geom_builder.ShapeType["FACE"], vec2, GEOM.ST_ON)
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# meshing (we have linear tetrahedrons here, but other elements are OK)
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Mesh_1 = smesh_builder.Mesh(Partition_1)
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2022-04-15 20:49:22 +05:00
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Mesh_1.Segment().NumberOfSegments(15)
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Mesh_1.Triangle().LengthFromEdges()
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Mesh_1.Tetrahedron()
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2023-02-21 18:59:44 +05:00
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if not Mesh_1.Compute(): raise Exception("Error when computing Mesh")
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2022-04-11 18:28:01 +05:00
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# relevant groups of volumes and faces
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Solid_1_1 = Mesh_1.GroupOnGeom(Solid_1,'Solid_1',SMESH.VOLUME)
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Solid_2_1 = Mesh_1.GroupOnGeom(Solid_2,'Solid_2',SMESH.VOLUME)
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Solid_3_1 = Mesh_1.GroupOnGeom(Solid_3,'Solid_3',SMESH.VOLUME)
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Solid_4_1 = Mesh_1.GroupOnGeom(Solid_4,'Solid_4',SMESH.VOLUME)
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Face_1_1 = Mesh_1.GroupOnGeom(Face_1,'Face_1',SMESH.FACE)
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Face_2_1 = Mesh_1.GroupOnGeom(Face_2,'Face_2',SMESH.FACE)
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# Building of flat elements
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Mesh_1.DoubleNodesOnGroupBoundaries([Solid_1_1, Solid_2_1, Solid_3_1, Solid_4_1], 1)
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Mesh_1.CreateFlatElementsOnFacesGroups([Face_1_1, Face_2_1])
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