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https://git.salome-platform.org/gitpub/modules/smesh.git
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123 lines
2.9 KiB
Python
123 lines
2.9 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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#
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# =======================================
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#
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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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# 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 = geompy.MakeBox(arete0, arete0, 0, arete1, arete1, arete)
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box_ijk1 = geompy.MakeBox(arete1, arete0, 0, arete2, arete1, arete)
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box_hexa = geompy.MakeBox(arete1, arete1, 0, arete2, arete2, arete)
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box_ijk2 = geompy.MakeBox(arete2, arete1, 0, arete3, arete2, arete)
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box_tetra2 = geompy.MakeBox(arete2, arete2, 0, arete3 ,arete3, arete)
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# Piece
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# -----
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piece_cpd = geompy.MakeCompound([box_tetra1, box_ijk1, box_hexa, box_ijk2, box_tetra2])
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piece = geompy.MakeGlueFaces(piece_cpd, 1e-4)
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piece_id = geompy.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 = geompy.GetInPlace(piece, b)
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faces = geompy.SubShapeAll(box, geompy.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(smeshBuilder.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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isDone = mixed.Compute()
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if not isDone:
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raise Exception("Error when computing Mesh")
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# Update object browser
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# ---------------------
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salome.sg.updateObjBrowser()
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