mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-09-22 10:42:52 +05:00
141 lines
3.1 KiB
Python
141 lines
3.1 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
|
|
#
|
|
|
|
# ==================================
|
|
#
|
|
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()
|
|
|
|
# Geometry
|
|
# ========
|
|
|
|
# an assembly of a box, a cylinder and a truncated cone meshed with tetrahedral.
|
|
|
|
# Define values
|
|
# -------------
|
|
|
|
name = "ex21_lamp"
|
|
|
|
cote = 60
|
|
|
|
section = 20
|
|
size = 200
|
|
|
|
radius_1 = 80
|
|
radius_2 = 40
|
|
height = 100
|
|
|
|
# Build a box
|
|
# -----------
|
|
|
|
box = geompy.MakeBox(-cote, -cote, -cote, +cote, +cote, +cote)
|
|
|
|
# Build a cylinder
|
|
# ----------------
|
|
|
|
pt1 = geompy.MakeVertex(0, 0, cote/3)
|
|
di1 = geompy.MakeVectorDXDYDZ(0, 0, 1)
|
|
cyl = geompy.MakeCylinder(pt1, di1, section, size)
|
|
|
|
# Build a truncated cone
|
|
# ----------------------
|
|
|
|
pt2 = geompy.MakeVertex(0, 0, size)
|
|
cone = geompy.MakeCone(pt2, di1, radius_1, radius_2, height)
|
|
|
|
# Fuse
|
|
# ----
|
|
|
|
box_cyl = geompy.MakeFuse(box, cyl)
|
|
piece = geompy.MakeFuse(box_cyl, cone)
|
|
|
|
# Add in study
|
|
# ------------
|
|
|
|
geompy.addToStudy(piece, name)
|
|
|
|
# Create a group of faces
|
|
# -----------------------
|
|
|
|
group = geompy.CreateGroup(piece, geompy.ShapeType["FACE"])
|
|
|
|
group_name = name + "_grp"
|
|
geompy.addToStudy(group, group_name)
|
|
group.SetName(group_name)
|
|
|
|
# Add faces in the group
|
|
# ----------------------
|
|
|
|
faces = geompy.SubShapeAllIDs(piece, geompy.ShapeType["FACE"])
|
|
|
|
geompy.UnionIDs(group, faces)
|
|
|
|
# Create a mesh
|
|
# =============
|
|
|
|
# Define a mesh on a geometry
|
|
# ---------------------------
|
|
|
|
tetra = smesh.Mesh(piece, name)
|
|
|
|
# Define 1D hypothesis
|
|
# --------------------
|
|
|
|
algo1d = tetra.Segment()
|
|
algo1d.LocalLength(10)
|
|
|
|
# Define 2D hypothesis
|
|
# --------------------
|
|
|
|
algo2d = tetra.Triangle()
|
|
algo2d.LengthFromEdges()
|
|
|
|
# Define 3D hypothesis
|
|
# --------------------
|
|
|
|
algo3d = tetra.Tetrahedron(smeshBuilder.NETGEN)
|
|
algo3d.MaxElementVolume(100)
|
|
|
|
# Compute the mesh
|
|
# ----------------
|
|
|
|
isDone = tetra.Compute()
|
|
if not isDone:
|
|
raise Exception("Error when computing Mesh")
|
|
|
|
# Create a groupe of faces
|
|
# ------------------------
|
|
|
|
tetra.Group(group)
|
|
|
|
# Update object browser
|
|
# ---------------------
|
|
|
|
salome.sg.updateObjBrowser() |