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61 lines
1.4 KiB
Python
61 lines
1.4 KiB
Python
# Editing of a 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()
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import SMESH, SALOMEDS
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from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
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def PrintMeshInfo(theMesh):
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aMesh = theMesh.GetMesh()
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print("Information about mesh:")
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print("Number of nodes : ", aMesh.NbNodes())
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print("Number of edges : ", aMesh.NbEdges())
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print("Number of faces : ", aMesh.NbFaces())
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print("Number of volumes : ", aMesh.NbVolumes())
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pass
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# create a box
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box = geompy.MakeBox(0., 0., 0., 20., 20., 20.)
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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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subShapeList = geompy.SubShapeAll(box, geompy.ShapeType["EDGE"])
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edge = subShapeList[0]
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name = geompy.SubShapeName(edge, box)
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geompy.addToStudyInFather(box, edge, name)
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# create a mesh
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tria = smesh.Mesh(box, "Mesh 2D")
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algo1D = tria.Segment()
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hyp1 = algo1D.NumberOfSegments(3)
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algo2D = tria.Triangle()
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hyp2 = algo2D.MaxElementArea(10.)
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# create a sub-mesh
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algo_local = tria.Segment(edge)
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hyp3 = algo_local.Arithmetic1D(1, 6)
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hyp4 = algo_local.Propagation()
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# compute the mesh
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tria.Compute()
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PrintMeshInfo(tria)
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# remove a local hypothesis
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tria.RemoveHypothesis(hyp4, edge)
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# compute the mesh
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tria.Compute()
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PrintMeshInfo(tria)
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# change the value of the 2D hypothesis
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hyp2.SetMaxElementArea(2.)
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# compute the mesh
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tria.Compute()
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PrintMeshInfo(tria)
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