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https://git.salome-platform.org/gitpub/modules/smesh.git
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134 lines
3.3 KiB
Python
134 lines
3.3 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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# =======================================
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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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# grid compound of 3 x 3 elements
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# an element is compound of 3 cylinders concentriques
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# an element is centered in a square of the grid
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# the smaller cylinder is a hole
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# prism the grid, and mesh it in hexahedral way
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# Values
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# ------
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g_x = 0
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g_y = 0
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g_z = 0
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g_arete = 50
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g_hauteur = 30
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g_rayon1 = 20
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g_rayon2 = 30
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g_rayon3 = 40
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g_grid = 3
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g_trim = 1000
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# Element
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# -------
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e_boite = geompy.MakeBox(g_x-g_arete, g_y-g_hauteur, g_z-g_arete, g_x+g_arete, g_y+g_hauteur, g_z+g_arete)
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e_hauteur = 2*g_hauteur
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e_centre = geompy.MakeVertex(g_x, g_y-g_hauteur, g_z)
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e_dir = geompy.MakeVectorDXDYDZ(0, 1, 0)
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e_cyl1 = geompy.MakeCylinder(e_centre, e_dir, g_rayon3, e_hauteur)
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e_blo1 = geompy.MakeCut(e_boite, e_cyl1)
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e_cyl2 = geompy.MakeCylinder(e_centre, e_dir, g_rayon2, e_hauteur)
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e_blo2 = geompy.MakeCut(e_cyl1, e_cyl2)
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e_cyl3 = geompy.MakeCylinder(e_centre, e_dir, g_rayon1, e_hauteur)
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e_blo3 = geompy.MakeCut(e_cyl2, e_cyl3)
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# Partition and repair
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# --------------------
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p_tools = []
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p_tools.append(geompy.MakePlane(e_centre, geompy.MakeVectorDXDYDZ( 1, 0, 1), g_trim))
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p_tools.append(geompy.MakePlane(e_centre, geompy.MakeVectorDXDYDZ(-1, 0, 1), g_trim))
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p_part = geompy.MakePartition([e_blo1, e_blo2, e_blo3], p_tools, [], [], geompy.ShapeType["SOLID"])
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p_element = geompy.RemoveExtraEdges(p_part, doUnionFaces=True)
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# Grid and glue
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# -------------
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grid = geompy.MakeMultiTranslation2D(p_element, geompy.MakeVectorDXDYDZ(1, 0, 0), 2*g_arete, g_grid, geompy.MakeVectorDXDYDZ(0, 0, 1), 2*g_arete, g_grid)
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piece = geompy.MakeGlueFaces(grid, 1e-5)
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# Add in study
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# ------------
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piece_id = geompy.addToStudy(piece, "ex11_grid3partition")
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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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hexa = smesh.Mesh(piece, "ex11_grid3partition:hexa")
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algo = hexa.Segment()
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algo.NumberOfSegments(3)
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hexa.Quadrangle()
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hexa.Hexahedron()
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# Mesh calculus
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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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