mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
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240 lines
7.8 KiB
Python
240 lines
7.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2007-2024 CEA, EDF, OPEN CASCADE
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#
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# Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
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# CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# 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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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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#
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# File : SMESH_withHole.py
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# Author : Lucien PIGNOLONI
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# Module : SMESH
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# $Header$
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#-------------------------------------------------------------------------
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#
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import salome
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salome.salome_init()
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import GEOM
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from salome.geom import geomBuilder
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geompy = geomBuilder.New()
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import SMESH, SALOMEDS
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from salome.smesh import smeshBuilder
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smesh = smeshBuilder.New()
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# ---------------------------- GEOM --------------------------------------
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# ---- define contiguous arcs and segment to define a closed wire
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p1 = geompy.MakeVertex( 100.0, 0.0, 0.0 )
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p2 = geompy.MakeVertex( 50.0, 50.0, 0.0 )
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p3 = geompy.MakeVertex( 100.0, 100.0, 0.0 )
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arc1 = geompy.MakeArc( p1, p2, p3 )
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p4 = geompy.MakeVertex( 170.0, 100.0, 0.0 )
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seg1 = geompy.MakeVector( p3, p4 )
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p5 = geompy.MakeVertex( 200.0, 70.0, 0.0 )
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p6 = geompy.MakeVertex( 170.0, 40.0, 0.0 )
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arc2 = geompy.MakeArc( p4, p5, p6 )
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p7 = geompy.MakeVertex( 120.0, 30.0, 0.0 )
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arc3 = geompy.MakeArc( p6, p7, p1 )
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# ---- define a closed wire with arcs and segment
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List1 = []
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List1.append( arc1 )
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List1.append( seg1 )
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List1.append( arc2 )
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List1.append( arc3 )
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wire1 = geompy.MakeWire( List1 )
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Id_wire1 = geompy.addToStudy( wire1, "wire1" )
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# ---- define a planar face with wire
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WantPlanarFace = 1 #True
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face1 = geompy.MakeFace( wire1, WantPlanarFace )
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Id_face1 = geompy.addToStudy( face1, "face1" )
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# ---- create a shape by extrusion
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pO = geompy.MakeVertex( 0.0, 0.0, 0.0 )
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pz = geompy.MakeVertex( 0.0, 0.0, 100.0 )
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vz = geompy.MakeVector( pO, pz )
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prism1 = geompy.MakePrismVecH( face1, vz, 100.0 )
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Id_prism1 = geompy.addToStudy( prism1, "prism1" )
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# ---- create two cylinders
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pc1 = geompy.MakeVertex( 90.0, 50.0, -40.0 )
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pc2 = geompy.MakeVertex( 170.0, 70.0, -40.0 )
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radius = 20.0
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height = 180.0
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cyl1 = geompy.MakeCylinder( pc1, vz, radius, height )
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cyl2 = geompy.MakeCylinder( pc2, vz, radius, height )
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Id_Cyl1 = geompy.addToStudy( cyl1, "cyl1" )
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Id_Cyl2 = geompy.addToStudy( cyl2, "cyl2" )
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# ---- cut with cyl1
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shape = geompy.MakeBoolean( prism1, cyl1, 2 )
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# ---- fuse with cyl2 to obtain the final mechanic piece :)
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mechanic = geompy.MakeBoolean( shape, cyl2, 3 )
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Id_mechanic = geompy.addToStudy( mechanic, "mechanic" )
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# ---- explode on faces
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SubFaceL = geompy.SubShapeAllSorted(mechanic, geompy.ShapeType["FACE"])
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# ---- add a face sub-shape in study to be meshed different
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sub_face1 = SubFaceL[0]
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name = geompy.SubShapeName( sub_face1, mechanic )
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Id_SubFace1 = geompy.addToStudyInFather( mechanic, sub_face1, name )
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# ---- add a face sub-shape in study to be meshed different
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sub_face2 = SubFaceL[4]
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name = geompy.SubShapeName( sub_face2, mechanic )
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Id_SubFace2 = geompy.addToStudyInFather( mechanic, sub_face2, name )
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# ---- add a face sub-shape in study to be meshed different
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sub_face3 = SubFaceL[5]
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name = geompy.SubShapeName( sub_face3, mechanic )
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Id_SubFace3 = geompy.addToStudyInFather( mechanic, sub_face3, name )
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# ---- add a face sub-shape in study to be meshed different
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sub_face4 = SubFaceL[10]
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name = geompy.SubShapeName( sub_face4, mechanic )
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Id_SubFace4 = geompy.addToStudyInFather( mechanic, sub_face4, name )
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# ---------------------------- SMESH --------------------------------------
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# -- Init --
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shape_mesh = salome.IDToObject( Id_mechanic )
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mesh = smesh.Mesh(shape_mesh, "Mesh_mechanic")
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print("-------------------------- NumberOfSegments")
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numberOfSegment = 10
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algo = mesh.Segment()
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hypNbSeg = algo.NumberOfSegments(numberOfSegment)
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print(hypNbSeg.GetName())
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print(hypNbSeg.GetId())
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print(hypNbSeg.GetNumberOfSegments())
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smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegment))
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print("-------------------------- MaxElementArea")
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maxElementArea = 25
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algo = mesh.Triangle()
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hypArea25 = algo.MaxElementArea(maxElementArea)
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print(hypArea25.GetName())
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print(hypArea25.GetId())
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print(hypArea25.GetMaxElementArea())
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smesh.SetName(hypArea25, "MaxElementArea_" + str(maxElementArea))
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# Create submesh on sub_face1 - sub_face4
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# ---------------------------------------
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# Set 2D algorithm to submesh on sub_face1
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algo = mesh.Quadrangle(sub_face1)
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smesh.SetName(algo.GetSubMesh(), "SubMeshFace1")
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submesh1 = algo.GetSubMesh()
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# Set 2D algorithm to submesh on sub_face2
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algo = mesh.Quadrangle(sub_face2)
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smesh.SetName(algo.GetSubMesh(), "SubMeshFace2")
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submesh2 = algo.GetSubMesh()
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# Set 2D algorithm to submesh on sub_face3
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algo = mesh.Quadrangle(sub_face3)
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smesh.SetName(algo.GetSubMesh(), "SubMeshFace3")
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submesh3 = algo.GetSubMesh()
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# Set 2D algorithm to submesh on sub_face4
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algo = mesh.Quadrangle(sub_face4)
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smesh.SetName(algo.GetSubMesh(), "SubMeshFace4")
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submesh4 = algo.GetSubMesh()
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print("-------------------------- compute the mesh of the mechanic piece")
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isDone = mesh.Compute()
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if not isDone:
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raise Exception("Error when computing Mesh")
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print("Information about the Mesh_mechanic:")
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print("Number of nodes : ", mesh.NbNodes())
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print("Number of edges : ", mesh.NbEdges())
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print("Number of faces : ", mesh.NbFaces())
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print("Number of triangles : ", mesh.NbTriangles())
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print("Number of quadrangles : ", mesh.NbQuadrangles())
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print("Number of volumes : ", mesh.NbVolumes())
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print("Number of tetrahedrons: ", mesh.NbTetras())
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#1 cutting of quadrangles of the 'SubMeshFace2' submesh
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mesh.SplitQuadObject(submesh2, 1)
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#2 cutting of triangles of the group
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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 ]
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GroupTriToQuad = mesh.MakeGroupByIds("Group of faces (quad)", SMESH.FACE, FacesTriToQuad)
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mesh.TriToQuadObject(GroupTriToQuad, SMESH.FT_AspectRatio , 1.57)
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#3 extrusion of the group
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point = SMESH.PointStruct(0, 0, 5)
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vector = SMESH.DirStruct(point)
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mesh.ExtrusionSweepObject(GroupTriToQuad, vector, 5)
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#4 mirror object
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mesh.Mirror([], SMESH.AxisStruct(0, 0, 0, 0, 0, 0), smesh.POINT, 0)
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#5 mesh translation
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point = SMESH.PointStruct(10, 10, 10)
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vector = SMESH.DirStruct(point)
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mesh.Translate([], vector, 0)
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#6 mesh rotation
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axisXYZ = SMESH.AxisStruct(0, 0, 0, 10, 10, 10)
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angle180 = 180*3.141/180
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mesh.Rotate([], axisXYZ, angle180, 0)
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#7 group smoothing
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FacesSmooth = [864, 933, 941, 950, 1005, 1013]
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GroupSmooth = mesh.MakeGroupByIds("Group of faces (smooth)", SMESH.FACE, FacesSmooth)
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mesh.SmoothObject(GroupSmooth, [], 20, 2, smesh.CENTROIDAL_SMOOTH)
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#8 rotation sweep object
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FacesRotate = [492, 493, 502, 503]
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GroupRotate = mesh.MakeGroupByIds("Group of faces (rotate)", SMESH.FACE, FacesRotate)
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angle45 = 45*3.141/180
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axisXYZ = SMESH.AxisStruct(-38.3128, -73.3658, -133.321, -13.3402, -13.3265, 6.66632)
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mesh.RotationSweepObject(GroupRotate, axisXYZ, angle45, 4, 1e-5)
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#9 reorientation of the submesh1
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mesh.ReorientObject(submesh1)
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salome.sg.updateObjBrowser()
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