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https://git.salome-platform.org/gitpub/modules/smesh.git
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151 lines
3.8 KiB
Python
151 lines
3.8 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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import math
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# Geometrie
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# =========
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# Creer un cylindre ayant a chaque bout un morceau de sphere et le tout troue par un petit cylindrique excentre.
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# Decouper en hexahedre et mailler.
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# Donnees
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# -------
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# unite: millimetre
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g_ox = 0
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g_oy = 0
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g_oz = 0
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g_cyl_rayon = 1000
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g_cyl_demiHauteur = 3000
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g_trou_rayon = 5
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g_trou_centre = 300
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g_sphere_rayon = 3500
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g_trim = 15000
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# Cylindre
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# --------
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c_point = geompy.MakeVertex(g_ox, g_oy, g_oz-g_cyl_demiHauteur)
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c_dir = geompy.MakeVectorDXDYDZ(0, 0, 1)
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c_hauteur = 2*g_cyl_demiHauteur
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c_cylindre = geompy.MakeCylinder(c_point, c_dir, g_cyl_rayon, c_hauteur)
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# Sphere
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# ------
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s_hauteur = math.sqrt(g_sphere_rayon*g_sphere_rayon - g_cyl_rayon*g_cyl_rayon) - g_cyl_demiHauteur
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s_sphere = geompy.MakeSphere(g_ox, g_oy, g_oz-s_hauteur, g_sphere_rayon)
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# Calottes
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# --------
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c_outils = []
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c_outils.append(geompy.MakePlane(geompy.MakeVertex(g_ox, g_oy, g_oz+g_cyl_demiHauteur), geompy.MakeVectorDXDYDZ(0, 0, 1), g_trim))
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c_cpd = geompy.MakePartition([s_sphere], c_outils, [], [], geompy.ShapeType["SOLID"])
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c_calotte_haut, c_reste = geompy.SubShapeAllSorted(c_cpd, geompy.ShapeType["SOLID"])
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c_plan = geompy.MakePlane(geompy.MakeVertex(g_ox, g_oy, g_oz), geompy.MakeVectorDXDYDZ(0, 0, 1), g_trim)
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c_calotte_bas = geompy.MakeMirrorByPlane(c_calotte_haut, c_plan)
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# Fusionner
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# ---------
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f_piece1 = geompy.MakeFuse(c_cylindre, c_calotte_haut)
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f_piece = geompy.MakeFuse(f_piece1, c_calotte_bas)
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# Trouer
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# ------
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t_hauteur = g_sphere_rayon
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t_point = geompy.MakeVertex(g_ox-g_trou_centre, g_oy, g_oz-t_hauteur)
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t_trou = geompy.MakeCylinder(t_point, c_dir, g_trou_rayon, 2*t_hauteur)
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t_piece = geompy.MakeCut(f_piece, t_trou)
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# Decouper
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# --------
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h_outils = []
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h_outils.append(geompy.MakePlane(t_point, geompy.MakeVectorDXDYDZ(1, 0, 0), g_trim))
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h_outils.append(geompy.MakePlane(t_point, geompy.MakeVectorDXDYDZ(0, 1, 0), g_trim))
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h_piece = geompy.MakePartition([t_piece], h_outils, [], [], geompy.ShapeType["SOLID"])
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# Reparer
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# -------
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piece = geompy.RemoveExtraEdges(h_piece)
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# Ajouter la piece dans l'etude
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# -----------------------------
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piece_id = geompy.addToStudy(piece, "ex18_dome2")
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# Maillage
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# ========
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# Maillage hexahedrique
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# ---------------------
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hexa = smesh.Mesh(piece, "ex18_dome2:hexa")
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algo = hexa.Segment()
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algo.NumberOfSegments(2)
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hexa.Quadrangle()
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hexa.Hexahedron()
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# Calcul du maillage
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# ------------------
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isDone = hexa.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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