mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-11-11 16:19:16 +05:00
162 lines
5.1 KiB
Python
162 lines
5.1 KiB
Python
# -*- coding: iso-8859-1 -*-
|
|
# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
|
|
#
|
|
# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
|
|
# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
|
|
#
|
|
# 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
|
|
# version 2.1 of the License, or (at your option) any later version.
|
|
#
|
|
# 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.
|
|
#
|
|
# 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
|
|
#
|
|
# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
|
|
#
|
|
|
|
# File : SMESH_withHole.py
|
|
# Author : Lucien PIGNOLONI
|
|
# Module : SMESH
|
|
# $Header$
|
|
#
|
|
import salome
|
|
salome.salome_init_without_session()
|
|
import GEOM
|
|
from salome.geom import geomBuilder
|
|
geompy = geomBuilder.New()
|
|
|
|
import SMESH, SALOMEDS
|
|
from salome.smesh import smeshBuilder
|
|
smesh = smeshBuilder.New()
|
|
|
|
# ---------------------------- GEOM --------------------------------------
|
|
|
|
# ---- define contiguous arcs and segment to define a closed wire
|
|
p1 = geompy.MakeVertex( 100.0, 0.0, 0.0 )
|
|
p2 = geompy.MakeVertex( 50.0, 50.0, 0.0 )
|
|
p3 = geompy.MakeVertex( 100.0, 100.0, 0.0 )
|
|
arc1 = geompy.MakeArc( p1, p2, p3 )
|
|
|
|
p4 = geompy.MakeVertex( 170.0, 100.0, 0.0 )
|
|
seg1 = geompy.MakeVector( p3, p4 )
|
|
|
|
p5 = geompy.MakeVertex( 200.0, 70.0, 0.0 )
|
|
p6 = geompy.MakeVertex( 170.0, 40.0, 0.0 )
|
|
arc2 = geompy.MakeArc( p4, p5, p6 )
|
|
|
|
p7 = geompy.MakeVertex( 120.0, 30.0, 0.0 )
|
|
arc3 = geompy.MakeArc( p6, p7, p1 )
|
|
|
|
# ---- define a closed wire with arcs and segment
|
|
List1 = []
|
|
List1.append( arc1 )
|
|
List1.append( seg1 )
|
|
List1.append( arc2 )
|
|
List1.append( arc3 )
|
|
|
|
wire1 = geompy.MakeWire( List1 )
|
|
Id_wire1 = geompy.addToStudy( wire1, "wire1" )
|
|
|
|
# ---- define a planar face with wire
|
|
WantPlanarFace = 1 #True
|
|
face1 = geompy.MakeFace( wire1, WantPlanarFace )
|
|
Id_face1 = geompy.addToStudy( face1, "face1" )
|
|
|
|
# ---- create a shape by extrusion
|
|
pO = geompy.MakeVertex( 0.0, 0.0, 0.0 )
|
|
pz = geompy.MakeVertex( 0.0, 0.0, 100.0 )
|
|
vz = geompy.MakeVector( pO, pz )
|
|
|
|
prism1 = geompy.MakePrismVecH( face1, vz, 100.0 )
|
|
Id_prism1 = geompy.addToStudy( prism1, "prism1")
|
|
|
|
# ---- create two cylinders
|
|
|
|
pc1 = geompy.MakeVertex( 90.0, 50.0, -40.0 )
|
|
pc2 = geompy.MakeVertex( 170.0, 70.0, -40.0 )
|
|
radius = 20.0
|
|
height = 180.0
|
|
cyl1 = geompy.MakeCylinder( pc1, vz, radius, height )
|
|
cyl2 = geompy.MakeCylinder( pc2, vz, radius, height )
|
|
|
|
Id_Cyl1 = geompy.addToStudy( cyl1, "cyl1" )
|
|
Id_Cyl2 = geompy.addToStudy( cyl2, "cyl2" )
|
|
|
|
# ---- cut with cyl1
|
|
shape = geompy.MakeBoolean( prism1, cyl1, 2 )
|
|
|
|
# ---- fuse with cyl2 to obtain the final mechanic piece :)
|
|
mechanic = geompy.MakeBoolean( shape, cyl2, 3 )
|
|
Id_mechanic = geompy.addToStudy( mechanic, "mechanic" )
|
|
|
|
# ---- Analysis of the geometry
|
|
|
|
print("Analysis of the geometry mechanic :")
|
|
|
|
subShellList = geompy.SubShapeAll(mechanic,geompy.ShapeType["SHELL"])
|
|
subFaceList = geompy.SubShapeAll(mechanic,geompy.ShapeType["FACE"])
|
|
subEdgeList = geompy.SubShapeAll(mechanic,geompy.ShapeType["EDGE"])
|
|
|
|
print("number of Shells in mechanic : ",len(subShellList))
|
|
print("number of Faces in mechanic : ",len(subFaceList))
|
|
print("number of Edges in mechanic : ",len(subEdgeList))
|
|
|
|
### ---------------------------- SMESH --------------------------------------
|
|
|
|
shape_mesh = salome.IDToObject( Id_mechanic )
|
|
|
|
mesh = smesh.Mesh(shape_mesh, "Mesh_mechanic_tetra")
|
|
|
|
print("-------------------------- add hypothesis to main mechanic")
|
|
|
|
numberOfSegment = 10
|
|
|
|
algo1 = mesh.Segment()
|
|
hypNbSeg = algo1.NumberOfSegments(numberOfSegment)
|
|
print(hypNbSeg.GetName())
|
|
print(hypNbSeg.GetId())
|
|
print(hypNbSeg.GetNumberOfSegments())
|
|
smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegment))
|
|
|
|
|
|
maxElementArea = 20
|
|
|
|
algo2 = mesh.Triangle()
|
|
hypArea = algo2.MaxElementArea(maxElementArea)
|
|
print(hypArea.GetName())
|
|
print(hypArea.GetId())
|
|
print(hypArea.GetMaxElementArea())
|
|
smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
|
|
|
|
|
|
maxElementVolume = 20
|
|
|
|
algo3 = mesh.Tetrahedron(smeshBuilder.NETGEN)
|
|
hypVolume = algo3.MaxElementVolume(maxElementVolume)
|
|
print(hypVolume.GetName())
|
|
print(hypVolume.GetId())
|
|
print(hypVolume.GetMaxElementVolume())
|
|
smesh.SetName(hypVolume, "maxElementVolume_" + str(maxElementVolume))
|
|
|
|
|
|
print("-------------------------- compute the mesh of the mechanic piece")
|
|
mesh.Compute()
|
|
|
|
print("Information about the Mesh_mechanic_tetra:")
|
|
print("Number of nodes : ", mesh.NbNodes())
|
|
print("Number of edges : ", mesh.NbEdges())
|
|
print("Number of faces : ", mesh.NbFaces())
|
|
print("Number of triangles : ", mesh.NbTriangles())
|
|
print("Number of quadrangles: ", mesh.NbQuadrangles())
|
|
print("Number of volumes : ", mesh.NbVolumes())
|
|
print("Number of tetrahedrons: ", mesh.NbTetras())
|
|
|
|
salome.sg.updateObjBrowser()
|