mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2025-02-27 03:45:36 +05:00
126 lines
2.6 KiB
Python
126 lines
2.6 KiB
Python
|
# Copyright (C) 2005 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.
|
||
|
|
#
|
||
|
|
# 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
|
||
|
|
#
|
||
|
|
# CEA/LGLS 2006, Francis KLOSS (OCC)
|
||
|
|
# ==================================
|
||
|
|
|
||
|
|
from geompy import *
|
||
|
|
|
||
|
|
import smesh
|
||
|
|
|
||
|
|
# 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 = MakeBox(-cote, -cote, -cote, +cote, +cote, +cote)
|
||
|
|
|
||
|
|
# Build a cylinder
|
||
|
|
# ----------------
|
||
|
|
|
||
|
|
pt1 = MakeVertex(0, 0, cote/3)
|
||
|
|
di1 = MakeVectorDXDYDZ(0, 0, 1)
|
||
|
|
cyl = MakeCylinder(pt1, di1, section, size)
|
||
|
|
|
||
|
|
# Build a truncated cone
|
||
|
|
# ----------------------
|
||
|
|
|
||
|
|
pt2 = MakeVertex(0, 0, size)
|
||
|
|
cone = MakeCone(pt2, di1, radius_1, radius_2, height)
|
||
|
|
|
||
|
|
# Fuse
|
||
|
|
# ----
|
||
|
|
|
||
|
|
box_cyl = MakeFuse(box, cyl)
|
||
|
|
piece = MakeFuse(box_cyl, cone)
|
||
|
|
|
||
|
|
# Add in study
|
||
|
|
# ------------
|
||
|
|
|
||
|
|
addToStudy(piece, name)
|
||
|
|
|
||
|
|
# Create a group of faces
|
||
|
|
# -----------------------
|
||
|
|
|
||
|
|
group = CreateGroup(piece, ShapeType["FACE"])
|
||
|
|
|
||
|
|
group_name = name + "_grp"
|
||
|
|
addToStudy(group, group_name)
|
||
|
|
group.SetName(group_name)
|
||
|
|
|
||
|
|
# Add faces in the group
|
||
|
|
# ----------------------
|
||
|
|
|
||
|
|
faces = SubShapeAllIDs(piece, ShapeType["FACE"])
|
||
|
|
|
||
|
|
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(smesh.NETGEN)
|
||
|
|
algo3d.MaxElementVolume(100)
|
||
|
|
|
||
|
|
# Compute the mesh
|
||
|
|
# ----------------
|
||
|
|
|
||
|
|
tetra.Compute()
|
||
|
|
|
||
|
|
# Create a groupe of faces
|
||
|
|
# ------------------------
|
||
|
|
|
||
|
|
tetra.Group(group)
|