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51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
# Construction of a Sub-mesh
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import salome
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salome.salome_init()
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import GEOM
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from salome.geom import geomBuilder
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geompy = geomBuilder.New(salome.myStudy)
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import SMESH, SALOMEDS
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from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New(salome.myStudy)
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# create a box
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box = geompy.MakeBoxDXDYDZ(10., 10., 10.)
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geompy.addToStudy(box, "Box")
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# select one edge of the box for definition of a local hypothesis
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p5 = geompy.MakeVertex(5., 0., 0.)
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EdgeX = geompy.GetEdgeNearPoint(box, p5)
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geompy.addToStudyInFather(box, EdgeX, "Edge [0,0,0 - 10,0,0]")
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# create a hexahedral mesh on the box
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mesh = smesh.Mesh(box, "Box : hexahedral 3D mesh")
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# create a Regular_1D algorithm for discretization of edges
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algo1D = mesh.Segment()
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# define "NumberOfSegments" hypothesis to cut
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# all the edges in a fixed number of segments
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algo1D.NumberOfSegments(4)
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# create a quadrangle 2D algorithm for the faces
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mesh.Quadrangle()
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# construct a sub-mesh on the edge with a local Regular_1D algorithm
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algo_local = mesh.Segment(EdgeX)
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# define "Arithmetic1D" hypothesis to cut EdgeX in several segments with length arithmetically
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# increasing from 1.0 to 4.0
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algo_local.Arithmetic1D(1, 4)
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# define "Propagation" hypothesis that propagates algo_local and "Arithmetic1D" hypothesis
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# on all parallel edges of the box
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algo_local.Propagation()
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# assign a hexahedral algorithm
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mesh.Hexahedron()
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# compute the mesh
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mesh.Compute()
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