smesh/src/SMESH_SWIG/ex04_cube5tetraHexa.py

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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2015 CEA/DEN, EDF R&D, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#
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# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# 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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# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
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# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#
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# =======================================
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#
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
# Geometry
# ========
# 5 box with a hexahedral mesh and with 2 box in tetrahedral mesh
# Values
# ------
arete = 100
arete0 = 0
arete1 = arete
arete2 = arete*2
arete3 = arete*3
# Solids
# ------
box_tetra1 = geompy.MakeBox(arete0, arete0, 0, arete1, arete1, arete)
box_ijk1 = geompy.MakeBox(arete1, arete0, 0, arete2, arete1, arete)
box_hexa = geompy.MakeBox(arete1, arete1, 0, arete2, arete2, arete)
box_ijk2 = geompy.MakeBox(arete2, arete1, 0, arete3, arete2, arete)
box_tetra2 = geompy.MakeBox(arete2, arete2, 0, arete3 ,arete3, arete)
# Piece
# -----
piece_cpd = geompy.MakeCompound([box_tetra1, box_ijk1, box_hexa, box_ijk2, box_tetra2])
piece = geompy.MakeGlueFaces(piece_cpd, 1e-4)
piece_id = geompy.addToStudy(piece, "ex04_cube5tetraHexa")
# Meshing
# =======
# Create a hexahedral mesh
# ------------------------
mixed = smesh.Mesh(piece, "ex04_cube5tetraHexa:mixed")
algo = mixed.Segment()
algo.StartEndLength(3, 25)
mixed.Quadrangle()
mixed.Hexahedron()
# Tetrahedral local mesh
# ----------------------
def localMesh(b, hyp):
box = geompy.GetInPlace(piece, b)
faces = geompy.SubShapeAll(box, geompy.ShapeType["FACE"])
i = 0
n = len(faces)
while i<n:
algo = mixed.Triangle(faces[i])
if hyp:
algo.MaxElementArea(80)
else:
algo.LengthFromEdges()
i = i + 1
algo = mixed.Tetrahedron(smeshBuilder.NETGEN, box)
algo.MaxElementVolume(400)
localMesh(box_tetra1, 1)
localMesh(box_tetra2, 0)
# Mesh calculus
# -------------
mixed.Compute()
# Update object browser
# ---------------------
salome.sg.updateObjBrowser(1)