mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-12-25 17:00:34 +05:00
240 lines
7.8 KiB
Python
240 lines
7.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# 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()
|
|
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" )
|
|
|
|
# ---- 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 --------------------------------------
|
|
|
|
# -- 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_" + str(numberOfSegment))
|
|
|
|
|
|
print("-------------------------- MaxElementArea")
|
|
|
|
maxElementArea = 25
|
|
|
|
algo = mesh.Triangle()
|
|
hypArea25 = algo.MaxElementArea(maxElementArea)
|
|
print(hypArea25.GetName())
|
|
print(hypArea25.GetId())
|
|
print(hypArea25.GetMaxElementArea())
|
|
smesh.SetName(hypArea25, "MaxElementArea_" + str(maxElementArea))
|
|
|
|
|
|
# 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")
|
|
submesh1 = algo.GetSubMesh()
|
|
|
|
# Set 2D algorithm to submesh on sub_face2
|
|
algo = mesh.Quadrangle(sub_face2)
|
|
smesh.SetName(algo.GetSubMesh(), "SubMeshFace2")
|
|
submesh2 = algo.GetSubMesh()
|
|
|
|
# Set 2D algorithm to submesh on sub_face3
|
|
algo = mesh.Quadrangle(sub_face3)
|
|
smesh.SetName(algo.GetSubMesh(), "SubMeshFace3")
|
|
submesh3 = algo.GetSubMesh()
|
|
|
|
# Set 2D algorithm to submesh on sub_face4
|
|
algo = mesh.Quadrangle(sub_face4)
|
|
smesh.SetName(algo.GetSubMesh(), "SubMeshFace4")
|
|
submesh4 = algo.GetSubMesh()
|
|
|
|
|
|
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())
|
|
|
|
|
|
#1 cutting of quadrangles of the 'SubMeshFace2' submesh
|
|
mesh.SplitQuadObject(submesh2, 1)
|
|
|
|
#2 cutting of triangles of the group
|
|
FacesTriToQuad = [ 2391, 2824, 2825, 2826, 2827, 2828, 2832, 2833, 2834, 2835, 2836, 2837, 2838, 2839, 2841, 2844, 2845, 2847, 2854, 2861, 2863, 2922, 2923, 2924, 2925, 2926, 2927, 2928, 2929, 2930, 2931, 2932, 2933, 2934, 2935, 2936, 2937, 2938, 2940, 2941, 2946, 2951, 2970, 2971, 2972, 2973, 2974, 2975, 2976, 2977, 2978, 2979, 2980, 2981, 2982, 2983, 2984, 2985 ]
|
|
GroupTriToQuad = mesh.MakeGroupByIds("Group of faces (quad)", SMESH.FACE, FacesTriToQuad)
|
|
mesh.TriToQuadObject(GroupTriToQuad, SMESH.FT_AspectRatio , 1.57)
|
|
|
|
#3 extrusion of the group
|
|
point = SMESH.PointStruct(0, 0, 5)
|
|
vector = SMESH.DirStruct(point)
|
|
mesh.ExtrusionSweepObject(GroupTriToQuad, vector, 5)
|
|
|
|
#4 mirror object
|
|
mesh.Mirror([], SMESH.AxisStruct(0, 0, 0, 0, 0, 0), smesh.POINT, 0)
|
|
|
|
#5 mesh translation
|
|
point = SMESH.PointStruct(10, 10, 10)
|
|
vector = SMESH.DirStruct(point)
|
|
mesh.Translate([], vector, 0)
|
|
|
|
#6 mesh rotation
|
|
axisXYZ = SMESH.AxisStruct(0, 0, 0, 10, 10, 10)
|
|
angle180 = 180*3.141/180
|
|
mesh.Rotate([], axisXYZ, angle180, 0)
|
|
|
|
#7 group smoothing
|
|
FacesSmooth = [864, 933, 941, 950, 1005, 1013]
|
|
GroupSmooth = mesh.MakeGroupByIds("Group of faces (smooth)", SMESH.FACE, FacesSmooth)
|
|
mesh.SmoothObject(GroupSmooth, [], 20, 2, smesh.CENTROIDAL_SMOOTH)
|
|
|
|
#8 rotation sweep object
|
|
FacesRotate = [492, 493, 502, 503]
|
|
GroupRotate = mesh.MakeGroupByIds("Group of faces (rotate)", SMESH.FACE, FacesRotate)
|
|
angle45 = 45*3.141/180
|
|
axisXYZ = SMESH.AxisStruct(-38.3128, -73.3658, -133.321, -13.3402, -13.3265, 6.66632)
|
|
mesh.RotationSweepObject(GroupRotate, axisXYZ, angle45, 4, 1e-5)
|
|
|
|
#9 reorientation of the submesh1
|
|
mesh.ReorientObject(submesh1)
|
|
|
|
salome.sg.updateObjBrowser()
|