smesh/test/SMESH_flight_skin.py

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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#
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# 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
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# version 2.1 of the License, or (at your option) any later version.
#
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# 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.
#
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# 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
#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#
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# Triangulation of the skin of the geometry from a Brep representing a plane
# Hypothesis and algorithms for the mesh generation are global
#
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import os
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
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geompy = geomBuilder.New()
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
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# ---------------------------- GEOM --------------------------------------
# import a BRep
#before running this script, please be sure about
#the path the file fileName
filePath = os.environ["DATA_DIR"]
filePath = filePath + "/Shapes/Brep/"
filename = "flight_solid.brep"
filename = filePath + filename
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shape = geompy.ImportBREP(filename)
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idShape = geompy.addToStudy(shape, "flight")
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print("Analysis of the geometry flight :")
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subShellList = geompy.SubShapeAll(shape, geompy.ShapeType["SHELL"])
subFaceList = geompy.SubShapeAll(shape, geompy.ShapeType["FACE"])
subEdgeList = geompy.SubShapeAll(shape, geompy.ShapeType["EDGE"])
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print("number of Shells in flight : ", len(subShellList))
print("number of Faces in flight : ", len(subFaceList))
print("number of Edges in flight : ", len(subEdgeList))
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### ---------------------------- SMESH --------------------------------------
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smesh.UpdateStudy()
# ---- init a Mesh with the shell
shape_mesh = salome.IDToObject( idShape )
mesh = smesh.Mesh(shape_mesh, "MeshFlight")
# ---- set Hypothesis and Algorithm
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print("-------------------------- LocalLength")
lengthOfSegments = 0.3
regular1D = mesh.Segment()
hypLength = regular1D.LocalLength(lengthOfSegments)
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print(hypLength.GetName())
print(hypLength.GetId())
print(hypLength.GetLength())
smesh.SetName(hypLength, "LocalLength_" + str(lengthOfSegments))
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print("-------------------------- LengthFromEdges")
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triangle = mesh.Triangle()
hypLengthFromEdge = triangle.LengthFromEdges()
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print(hypLengthFromEdge.GetName())
print(hypLengthFromEdge.GetId())
smesh.SetName(hypLengthFromEdge,"LengthFromEdge")
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print("-------------------------- compute the skin flight")
ret = mesh.Compute()
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print(ret)
if ret != 0:
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log = mesh.GetLog(0) # no erase trace
# for linelog in log:
# print(linelog)
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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 volumes : ", mesh.NbVolumes())
else:
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print("probleme when computing the mesh")
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salome.sg.updateObjBrowser()