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https://git.salome-platform.org/gitpub/modules/smesh.git
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145 lines
5.4 KiB
Python
145 lines
5.4 KiB
Python
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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2023 CEA, EDF, OPEN CASCADE
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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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import math
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import salome
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salome.salome_init_without_session()
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import GEOM
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import SHAPERSTUDY
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from salome.geom import geomBuilder
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from salome.smesh import smeshBuilder
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from salome.shaper import model
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def assertAlmostEqual(a,b,tol):
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if ( abs(a-b) < tol ):
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return True
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else:
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print( "not close vals", a, b )
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return False
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geompy = geomBuilder.New()
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O = geompy.MakeVertex(0, 0, 0)
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OX = geompy.MakeVectorDXDYDZ(1, 0, 0)
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OY = geompy.MakeVectorDXDYDZ(0, 1, 0)
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OZ = geompy.MakeVectorDXDYDZ(0, 0, 1)
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# create a disk
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geompy.addToStudy( O, 'O' )
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geompy.addToStudy( OX, 'OX' )
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geompy.addToStudy( OY, 'OY' )
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geompy.addToStudy( OZ, 'OZ' )
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Box = geompy.MakeBox(0,0,0,10,10,10)
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smesh_builder = smeshBuilder.New()
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MesherBox = smesh_builder.Mesh(Box, "Box")
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viscousBuilder = MesherBox.ViscousLayerBuilder()
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#############BOX AND TETRA ELEMENTS
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#Set prismatic layer parameters
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offset = 0.7
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numLayers = 4
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viscousBuilder.setBuilderParameters( offset, numLayers, 1.2, [13], False )
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ShrinkBox = viscousBuilder.GetShrinkGeometry()
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#Mesh the shrink box
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MesherShinkBox = smesh_builder.Mesh(ShrinkBox, "ShrinkMesh")
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ShrinkBoxMesh = MesherShinkBox.Tetrahedron(smeshBuilder.NETGEN_1D2D3D)
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#Compute
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success = MesherShinkBox.Compute()
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assert( success )
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assert( MesherShinkBox.NbVolumes() == 5 ) # if Fails! change the default value of volumes when meshing with Netgen!
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FinalMesh = viscousBuilder.AddLayers( MesherShinkBox )
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assert( FinalMesh.NbVolumes() == 5 + numLayers * 2 ) # here 2 stands for the number of face elements per face in the box
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assert( FinalMesh.NbFaces() == 6 * 2 + 4 * numLayers ) # here is the number of face elements for the box + the new faces in the VL. (6 is the number of sides in the box)
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#Testing the configuration where face 13 is ignored and so the offset is applied to all other faces
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viscousBuilder.setBuilderParameters( offset, numLayers, 1.2, [13], True )
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ShrinkBox2 = viscousBuilder.GetShrinkGeometry()
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#Mesh the shrink box
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MesherShinkBox2 = smesh_builder.Mesh(ShrinkBox2, "ShrinkMesh2")
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ShrinkBoxMesh2 = MesherShinkBox2.Tetrahedron(smeshBuilder.NETGEN_1D2D3D)
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#Compute
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success = MesherShinkBox2.Compute()
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assert( success )
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#Test the number of elements on the shrink mesh
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assert( MesherShinkBox2.NbVolumes() == 5 ) # if Fails! change the default (default hypo) number of volumes when meshing with Netgen!
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FinalMesh2 = viscousBuilder.AddLayers( MesherShinkBox2 )
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assert( FinalMesh2.NbVolumes() == 5 + numLayers * 2 * 5 ) # here 2 stands for the number of face elements per face in the box
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assert( FinalMesh2.NbFaces() == 6 * 2 + 4 * numLayers ) # here is the number of face elements for the box + the new faces in the VL. (6 is the number of sides in the box)
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#############END BOX AND TETRA ELEMENTS
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#############MESH SQUARE FACE
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Face = geompy.MakeFaceHW(5, 5, 1)
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Disk = geompy.MakeDiskR(5, 1)
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MesherSqr = smesh_builder.Mesh(Face, "Face")
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viscousBuilder = MesherSqr.ViscousLayerBuilder()
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#Set prismatic layer parameters
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offset = 0.5
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numberOfLayers = 6
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viscousBuilder.setBuilderParameters( offset, numberOfLayers, 1.2 )
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ShrinkFace = viscousBuilder.GetShrinkGeometry()
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#Mesh the shrink face
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MesherShinkFace = smesh_builder.Mesh(ShrinkFace, "ShrinkFaceMesh")
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algo = MesherShinkFace.Segment()
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numOfSegments = 4
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algo.NumberOfSegments(numOfSegments)
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ShrinkFaceMesh = MesherShinkFace.Triangle()
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#Compute
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success = MesherShinkFace.Compute()
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assert( success )
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numFaceElementShrinkGeom = MesherShinkFace.NbFaces()
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FinalFaceMesh = viscousBuilder.AddLayers( MesherShinkFace )
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# Check the number of additional elements
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# numOfSegments * 4 * numberOfLayers
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finalNumOfElements = FinalFaceMesh.NbFaces()
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assert( numFaceElementShrinkGeom + 4 * numOfSegments * numberOfLayers == finalNumOfElements )
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#############END MESH SQUARE FACE
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#############MESH CIRCULAR FACE
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MesherCircle = smesh_builder.Mesh(Disk, "Disk")
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viscousBuilder = MesherCircle.ViscousLayerBuilder()
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viscousBuilder.setBuilderParameters( offset, numberOfLayers, 1.2 )
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ShrinkCircle = viscousBuilder.GetShrinkGeometry()
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MesherShinkCircle = smesh_builder.Mesh(ShrinkCircle, "ShrinkCircleMesh")
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algo = MesherShinkCircle.Segment()
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numOfSegments = 12
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algo.NumberOfSegments(numOfSegments)
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ShrinkCircleMesh = MesherShinkCircle.Triangle()
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#Compute
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success = MesherShinkCircle.Compute()
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numFaceElementShrinkGeom = MesherShinkCircle.NbFaces()
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assert( success )
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FinalCircleMesh = viscousBuilder.AddLayers( MesherShinkCircle )
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finalNumOfElements = FinalCircleMesh.NbFaces()
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assert( numFaceElementShrinkGeom + numOfSegments * numberOfLayers == finalNumOfElements )
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#############END MESH CIRCULAR FACE
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