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88 lines
1.6 KiB
Python
88 lines
1.6 KiB
Python
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# CEA/LGLS 2004-2005, Francis KLOSS (OCC)
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# =======================================
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from geompy import *
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import smesh
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# Geometry
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# ========
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# 5 box with a hexahedral mesh and with 2 box in tetrahedral mesh
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# Values
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# ------
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arete = 100
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arete0 = 0
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arete1 = arete
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arete2 = arete*2
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arete3 = arete*3
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# Solids
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# ------
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box_tetra1 = MakeBox(arete0, arete0, 0, arete1, arete1, arete)
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box_ijk1 = MakeBox(arete1, arete0, 0, arete2, arete1, arete)
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box_hexa = MakeBox(arete1, arete1, 0, arete2, arete2, arete)
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box_ijk2 = MakeBox(arete2, arete1, 0, arete3, arete2, arete)
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box_tetra2 = MakeBox(arete2, arete2, 0, arete3 ,arete3, arete)
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# Piece
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# -----
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piece_cpd = MakeCompound([box_tetra1, box_ijk1, box_hexa, box_ijk2, box_tetra2])
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piece = MakeGlueFaces(piece_cpd, 1e-4)
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piece_id = addToStudy(piece, "ex04_cube5tetraHexa")
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# Meshing
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# =======
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# Create a hexahedral mesh
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# ------------------------
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mixed = smesh.Mesh(piece, "ex04_cube5tetraHexa:mixed")
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algo = mixed.Segment()
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algo.StartEndLength(3, 25)
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mixed.Quadrangle()
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mixed.Hexahedron()
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# Tetrahedral local mesh
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# ----------------------
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def localMesh(b, hyp):
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box = GetInPlace(piece, b)
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faces = SubShapeAll(box, ShapeType["FACE"])
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i = 0
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n = len(faces)
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while i<n:
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algo = mixed.Triangle(faces[i])
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if hyp:
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algo.MaxElementArea(80)
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else:
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algo.LengthFromEdges()
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i = i + 1
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algo = mixed.Tetrahedron(smesh.NETGEN, box)
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algo.MaxElementVolume(400)
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localMesh(box_tetra1, 1)
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localMesh(box_tetra2, 0)
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# Mesh calculus
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# -------------
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mixed.Compute()
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