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39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
# Cutting Triangles
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import salome
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salome.salome_init_without_session()
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from salome.smesh import smeshBuilder
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smesh_builder = smeshBuilder.New()
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# create 3 triangles and 1 segment all sharing edge 1-2
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mesh = smesh_builder.Mesh()
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n1 = mesh.AddNode( 0, 0, 0)
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n2 = mesh.AddNode( 0, 0, -10)
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n3 = mesh.AddNode( 10, 0, 0)
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n4 = mesh.AddNode( 0, 10, 0)
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n5 = mesh.AddNode( 0, -10, 0)
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mesh.AddFace([ n1, n2, n3])
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mesh.AddFace([ n1, n2, n4])
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mesh.AddFace([ n1, n2, n5])
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mesh.AddEdge([ n1, n2] )
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# ===========================================================================
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# cut all the triangles and the segment by setting a new node on the segment
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# ===========================================================================
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mesh.AddNodeOnSegment( n1, n2, 0.6 )
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assert mesh.NbNodes() == 6 # one new node created
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assert mesh.NbTriangles() == 6 # each of the 3 triangles is split into two
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assert mesh.NbEdges() == 2 # a segment is split into two
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# ===============================================================
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# cut a triangle into three by adding a new node on the triangle
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# ===============================================================
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triangleID = 1
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mesh.AddNodeOnFace( triangleID, 2, 0, -6 )
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assert mesh.NbNodes() == 7 # one new node created
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assert mesh.NbTriangles() == 8 # the triangles is split into three
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