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https://git.salome-platform.org/gitpub/modules/smesh.git
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102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2022 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,
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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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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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# -----------------------------------------------------------------------------
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p0 = geompy.MakeVertex(0., 0., 0.)
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px = geompy.MakeVertex(100., 0., 0.)
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py = geompy.MakeVertex(0., 100., 0.)
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pz = geompy.MakeVertex(0., 0., 100.)
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vx = geompy.MakeVector(p0, px)
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vy = geompy.MakeVector(p0, py)
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vz = geompy.MakeVector(p0, pz)
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sphereExt = geompy.MakeSphere( 0., 0., 0., 400.)
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sphereInt = geompy.MakeSphere( 0.,-50., 0., 350.)
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sphereA = geompy.MakeSphere( -400., 50., 50., 400.)
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sphereB = geompy.MakeSphere( 350.,-50.,-50., 350.)
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ptcyle = geompy.MakeVertex(0., -300., -450.)
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cylindre = geompy.MakeCylinder(ptcyle,vz,500.,900.)
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vol1=geompy.MakeCut(sphereExt,sphereA)
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vol2=geompy.MakeCut(vol1,sphereB)
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vol3=geompy.MakeCut(vol2,cylindre)
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blob=geompy.MakeCut(vol3,sphereInt)
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blob=geompy.RemoveExtraEdges(blob)
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idblob = geompy.addToStudy(blob,"blob")
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edgeGroups = geompy.Propagate( blob )
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assert len( edgeGroups ) == 3
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salome.sg.updateObjBrowser()
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# -----------------------------------------------------------------------------
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print("-------------------------- mesh")
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smesh.UpdateStudy()
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# ---- define a mesh on the geom shape 'blob'
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mesh=smesh.Mesh(blob, "MeshBlob")
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# ---- assign global hypothesis and algorithms to mesh
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print("-------------------------- add hypothesis to mesh")
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algo1 = mesh.Segment()
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algo2 = mesh.Quadrangle()
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algo3 = mesh.Hexahedron()
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# ---- assign local hypothesis and algorithms to mesh
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for edges in edgeGroups: # loop on groups of logically parallel edges
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length = geompy.BasicProperties( edges )[0]
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if length < 500: nbSeg = 4
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elif length < 2000: nbSeg = 10
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else: nbSeg = 15
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algo = mesh.Segment( edges )
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algo.NumberOfSegments( nbSeg )
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pass
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# ---- compute mesh
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print("-------------------------- compute mesh")
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ok = mesh.Compute()
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if not ok:
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raise Exception("Error when computing Mesh")
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print("Information about the Mesh:")
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print("Number of nodes : ", mesh.NbNodes())
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print("Number of edges : ", mesh.NbEdges())
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print("Number of faces : ", mesh.NbFaces())
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print("Number of quadrangles : ", mesh.NbQuadrangles())
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print("Number of volumes : ", mesh.NbVolumes())
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print("Number of hexahedrons : ", mesh.NbHexas())
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salome.sg.updateObjBrowser()
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