-# -*- 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
-#
-
-# Quadrangulation of the geometry generated by the Python script
-# SMESH_mechanic.py
-# The new Netgen algorithm is used that discretizes baoundaries itself
-#
-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" )
-
-# ---- Analysis of the geometry
-
-print("Analysis of the geometry mechanic :")
-
-subShellList = geompy.SubShapeAll(mechanic,geompy.ShapeType["SHELL"])
-subFaceList = geompy.SubShapeAll(mechanic,geompy.ShapeType["FACE"])
-subEdgeList = geompy.SubShapeAll(mechanic,geompy.ShapeType["EDGE"])
-
-print("number of Shells in mechanic : ",len(subShellList))
-print("number of Faces in mechanic : ",len(subFaceList))
-print("number of Edges in mechanic : ",len(subEdgeList))
-
-### ---------------------------- SMESH --------------------------------------
-
-print("-------------------------- create Mesh, algorithm, hypothesis")
-
-mesh = smesh.Mesh(mechanic, "Mesh_mechanic");
-netgen = mesh.Triangle(smeshBuilder.NETGEN)
-netgen.SetMaxSize( 50 )
-#netgen.SetSecondOrder( 0 )
-netgen.SetFineness( smeshBuilder.Fine )
-netgen.SetQuadAllowed( 1 )
-#netgen.SetOptimize( 1 )
-
-print("-------------------------- compute mesh")
-ret = mesh.Compute()
-print(ret)
-if ret != 0:
- print("Information about the MeshcompShel:")
- 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())
-
-else:
- print("problem when computing the mesh")
-
-salome.sg.updateObjBrowser()
