smesh/test/SMESH_hexaedre.py
2024-01-20 14:16:41 +00:00

102 lines
3.4 KiB
Python

# -*- coding: iso-8859-1 -*-
# Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
#
# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#
# 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
# version 2.1 of the License, or (at your option) any later version.
#
# 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.
#
# 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
#
# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New()
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New()
# -----------------------------------------------------------------------------
p0 = geompy.MakeVertex(0., 0., 0.)
px = geompy.MakeVertex(100., 0., 0.)
py = geompy.MakeVertex(0., 100., 0.)
pz = geompy.MakeVertex(0., 0., 100.)
vx = geompy.MakeVector(p0, px)
vy = geompy.MakeVector(p0, py)
vz = geompy.MakeVector(p0, pz)
sphereExt = geompy.MakeSphere( 0., 0., 0., 400.)
sphereInt = geompy.MakeSphere( 0.,-50., 0., 350.)
sphereA = geompy.MakeSphere( -400., 50., 50., 400.)
sphereB = geompy.MakeSphere( 350.,-50.,-50., 350.)
ptcyle = geompy.MakeVertex(0., -300., -450.)
cylindre = geompy.MakeCylinder(ptcyle,vz,500.,900.)
vol1=geompy.MakeCut(sphereExt,sphereA)
vol2=geompy.MakeCut(vol1,sphereB)
vol3=geompy.MakeCut(vol2,cylindre)
blob=geompy.MakeCut(vol3,sphereInt)
blob=geompy.RemoveExtraEdges(blob)
idblob = geompy.addToStudy(blob,"blob")
edgeGroups = geompy.Propagate( blob )
assert len( edgeGroups ) == 3
salome.sg.updateObjBrowser()
# -----------------------------------------------------------------------------
print("-------------------------- mesh")
smesh.UpdateStudy()
# ---- define a mesh on the geom shape 'blob'
mesh=smesh.Mesh(blob, "MeshBlob")
# ---- assign global hypothesis and algorithms to mesh
print("-------------------------- add hypothesis to mesh")
algo1 = mesh.Segment()
algo2 = mesh.Quadrangle()
algo3 = mesh.Hexahedron()
# ---- assign local hypothesis and algorithms to mesh
for edges in edgeGroups: # loop on groups of logically parallel edges
length = geompy.BasicProperties( edges )[0]
if length < 500: nbSeg = 4
elif length < 2000: nbSeg = 10
else: nbSeg = 15
algo = mesh.Segment( edges )
algo.NumberOfSegments( nbSeg )
pass
# ---- compute mesh
print("-------------------------- compute mesh")
ok = mesh.Compute()
if not ok:
raise Exception("Error when computing Mesh")
print("Information about the Mesh:")
print("Number of nodes : ", mesh.NbNodes())
print("Number of edges : ", mesh.NbEdges())
print("Number of faces : ", mesh.NbFaces())
print("Number of quadrangles : ", mesh.NbQuadrangles())
print("Number of volumes : ", mesh.NbVolumes())
print("Number of hexahedrons : ", mesh.NbHexas())
salome.sg.updateObjBrowser()