smesh/test/ex16_cyl2complementary.py

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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2023 CEA, EDF, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#
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# 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
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# version 2.1 of the License, or (at your option) any later version.
#
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# 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.
#
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# 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
#
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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
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
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geompy = geomBuilder.New()
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import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
# Geometry
# ========
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# Create the hexahedrical block geometry of a holed parallelepipede.
# The hole has a T form composed by 2 cylinders with different radius, and their axis are normal.
# This piece is meshed in hexahedrical.
# Values
# ------
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gx = 0
gy = 0
gz = 0
g_dx = 250
g_dy = 200
g_dz = 150
g_rayonGrand = 70
g_rayonPetit = 50
g_trim = 1000
# The parallelepipede
# -------------------
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
# ------------------
g_base = geompy.MakeVertex(gx-g_dx, gy, gz)
g_dir = geompy.MakeVectorDXDYDZ(1, 0, 0)
g_cyl = geompy.MakeCylinder(g_base, g_dir, g_rayonGrand, g_dx*2)
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# The first hole
# --------------
b_boite = geompy.MakeCut(p_boite , g_cyl)
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# Partitioning
# ------------
p_base = geompy.MakeVertex(gx, gy, gz)
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p_tools = []
p_tools.append(geompy.MakePlane(p_base, geompy.MakeVectorDXDYDZ(0, 1 , 0 ), g_trim))
p_tools.append(geompy.MakePlane(p_base, geompy.MakeVectorDXDYDZ(0, g_dz, g_dy), g_trim))
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))
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
# ------------------
c_cyl = geompy.MakeCylinder(p_base, geompy.MakeVectorDXDYDZ(0, 0, 1), g_rayonPetit, g_dz)
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# The second hole
# ---------------
d_element = geompy.SubShapeAllSorted(p_piece, geompy.ShapeType["SOLID"])
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d_element[ 8] = geompy.MakeCut(d_element[ 8], c_cyl)
d_element[10] = geompy.MakeCut(d_element[10], c_cyl)
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# Compound
# --------
piece = geompy.RemoveExtraEdges(geompy.MakeCompound(d_element))
piece = geompy.MakeGlueFaces(piece, 1e-07)
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# Add piece in study
# ------------------
piece_id = geompy.addToStudy(piece, "ex16_cyl2complementary")
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# Meshing
# =======
# Create a hexahedral mesh
# ------------------------
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hexa = smesh.Mesh(piece, "ex16_cyl2complementary:hexa")
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algo = hexa.Segment()
algo.NumberOfSegments(12)
hexa.Quadrangle()
hexa.Hexahedron()
# Define local hypothesis
# -----------------------
def local(x, y, z, d):
edge = geompy.GetEdgeNearPoint(piece, geompy.MakeVertex(x, y, z))
algo = hexa.Segment(edge)
algo.NumberOfSegments(d)
algo.Propagation()
local(gx , gy+g_dy, gz+g_dz, 7)
local(gx+g_dx, gy+g_dy, gz , 21)
local(gx+g_dx, gy-g_dy, gz , 21)
# Mesh calculus
# -------------
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isDone = hexa.Compute()
if not isDone:
raise Exception("Error when computing Mesh")
# Update object browser
# ---------------------
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salome.sg.updateObjBrowser()