smesh/test/SMESH_mechanic.py
2024-01-20 14:16:41 +00:00

194 lines
6.0 KiB
Python

# -*- coding: iso-8859-1 -*-
# Copyright (C) 2007-2024 CEA, EDF, 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()
from salome.StdMeshers import StdMeshersBuilder
# ---------------------------- 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" )
# ---- explode on faces
SubFaceL = geompy.SubShapeAllSorted(mechanic, geompy.ShapeType["FACE"])
# ---- add a face sub-shape in study to be meshed different
sub_face1 = SubFaceL[0]
name = geompy.SubShapeName( sub_face1, mechanic )
Id_SubFace1 = geompy.addToStudyInFather( mechanic, sub_face1, name )
# ---- add a face sub-shape in study to be meshed different
sub_face2 = SubFaceL[4]
name = geompy.SubShapeName( sub_face2, mechanic )
Id_SubFace2 = geompy.addToStudyInFather( mechanic, sub_face2, name )
# ---- add a face sub-shape in study to be meshed different
sub_face3 = SubFaceL[5]
name = geompy.SubShapeName( sub_face3, mechanic )
Id_SubFace3 = geompy.addToStudyInFather( mechanic, sub_face3, name )
# ---- add a face sub-shape in study to be meshed different
sub_face4 = SubFaceL[10]
name = geompy.SubShapeName( sub_face4, mechanic )
Id_SubFace4 = geompy.addToStudyInFather( mechanic, sub_face4, name )
# ---------------------------- SMESH --------------------------------------
smesh.UpdateStudy()
# -- Init --
shape_mesh = salome.IDToObject( Id_mechanic )
mesh = smesh.Mesh(shape_mesh, "Mesh_mechanic")
print("-------------------------- NumberOfSegments")
numberOfSegment = 10
algo = mesh.Segment()
hypNbSeg = algo.NumberOfSegments(numberOfSegment)
print(hypNbSeg.GetName())
print(hypNbSeg.GetId())
print(hypNbSeg.GetNumberOfSegments())
smesh.SetName(hypNbSeg, "NumberOfSegments_10")
print("-------------------------- MaxElementArea")
maxElementArea = 25
algo = mesh.Triangle()
hypArea25 = algo.MaxElementArea(maxElementArea)
print(hypArea25.GetName())
print(hypArea25.GetId())
print(hypArea25.GetMaxElementArea())
smesh.SetName(hypArea25, "MaxElementArea_25")
# Create submesh on sub_face1 - sub_face4
# ---------------------------------------
# Set 2D algorithm to submesh on sub_face1
algo = mesh.Quadrangle(sub_face1)
smesh.SetName(algo.GetSubMesh(), "SubMeshFace1")
# Set 2D algorithm to submesh on sub_face2
algo = mesh.Quadrangle(sub_face2)
smesh.SetName(algo.GetSubMesh(), "SubMeshFace2")
# Set 2D algorithm to submesh on sub_face3
algo = mesh.Quadrangle(sub_face3)
smesh.SetName(algo.GetSubMesh(), "SubMeshFace3")
# Set 2D algorithm to submesh on sub_face4
algo = mesh.Quadrangle(sub_face4)
smesh.SetName(algo.GetSubMesh(), "SubMeshFace4")
print("-------------------------- compute the mesh of the mechanic piece")
isDone = mesh.Compute()
if not isDone:
raise Exception("Error when computing Mesh")
print("Information about the Mesh_mechanic:")
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()