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https://git.salome-platform.org/gitpub/modules/smesh.git
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153 lines
3.8 KiB
Python
153 lines
3.8 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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# Create the hexahedrical block geometry of a holed parallelepipede.
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# The hole has a T form composed by 2 cylinders with different radius, and their axis are normal.
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# This piece is meshed in hexahedrical.
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# Values
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# ------
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gx = 0
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gy = 0
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gz = 0
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g_dx = 250
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g_dy = 200
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g_dz = 150
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g_rayonGrand = 70
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g_rayonPetit = 50
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g_trim = 1000
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# The parallelepipede
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# -------------------
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p_boite = geompy.MakeBox(gx-g_dx, gy-g_dy, gz-g_dz, gx+g_dx, gy+g_dy, gz+g_dz)
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# The great cylinder
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# ------------------
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g_base = geompy.MakeVertex(gx-g_dx, gy, gz)
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g_dir = geompy.MakeVectorDXDYDZ(1, 0, 0)
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g_cyl = geompy.MakeCylinder(g_base, g_dir, g_rayonGrand, g_dx*2)
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# The first hole
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# --------------
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b_boite = geompy.MakeCut(p_boite , g_cyl)
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# Partitioning
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# ------------
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p_base = geompy.MakeVertex(gx, gy, gz)
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p_tools = []
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p_tools.append(geompy.MakePlane(p_base, geompy.MakeVectorDXDYDZ(0, 1 , 0 ), g_trim))
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p_tools.append(geompy.MakePlane(p_base, geompy.MakeVectorDXDYDZ(0, g_dz, g_dy), g_trim))
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p_tools.append(geompy.MakePlane(p_base, geompy.MakeVectorDXDYDZ(0, -g_dz, g_dy), g_trim))
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p_tools.append(geompy.MakePlane(geompy.MakeVertex(gx-g_rayonPetit, gy, gz), g_dir, g_trim))
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p_tools.append(geompy.MakePlane(geompy.MakeVertex(gx+g_rayonPetit, gy, gz), g_dir, g_trim))
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p_piece = geompy.MakePartition([b_boite], p_tools, [], [], geompy.ShapeType["SOLID"])
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# The small cylinder
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# ------------------
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c_cyl = geompy.MakeCylinder(p_base, geompy.MakeVectorDXDYDZ(0, 0, 1), g_rayonPetit, g_dz)
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# The second hole
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# ---------------
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d_element = geompy.SubShapeAllSorted(p_piece, geompy.ShapeType["SOLID"])
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d_element[ 8] = geompy.MakeCut(d_element[ 8], c_cyl)
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d_element[10] = geompy.MakeCut(d_element[10], c_cyl)
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# Compound
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# --------
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piece = geompy.RemoveExtraEdges(geompy.MakeCompound(d_element))
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piece = geompy.MakeGlueFaces(piece, 1e-07)
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# Add piece in study
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# ------------------
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piece_id = geompy.addToStudy(piece, "ex16_cyl2complementary")
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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, "ex16_cyl2complementary:hexa")
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algo = hexa.Segment()
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algo.NumberOfSegments(12)
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hexa.Quadrangle()
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hexa.Hexahedron()
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# Define local hypothesis
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# -----------------------
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def local(x, y, z, d):
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edge = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(x, y, z))
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algo = hexa.Segment(edge)
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algo.NumberOfSegments(d)
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algo.Propagation()
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local(gx , gy+g_dy, gz+g_dz, 7)
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local(gx+g_dx, gy+g_dy, gz , 21)
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local(gx+g_dx, gy-g_dy, gz , 21)
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# Mesh calculus
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# -------------
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hexa.Compute()
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# Update object browser
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# ---------------------
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salome.sg.updateObjBrowser()
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