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https://git.salome-platform.org/gitpub/modules/smesh.git
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152 lines
5.2 KiB
Python
152 lines
5.2 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2020 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,
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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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# Tetrahedrization of the geometry union of 3 boxes aligned where the middle
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# one has a race in common with the two others.
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# Hypothesis and algorithms for the mesh generation are global
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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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# ---- define 3 boxes box1, box2 and box3
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box1 = geompy.MakeBox(0., 0., 0., 100., 200., 300.)
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idbox1 = geompy.addToStudy(box1, "box1")
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print("Analysis of the geometry box1 :")
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subShellList = geompy.SubShapeAll(box1, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(box1, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(box1, geompy.ShapeType["EDGE"])
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print("number of Shells in box1 : ", len(subShellList))
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print("number of Faces in box1 : ", len(subFaceList))
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print("number of Edges in box1 : ", len(subEdgeList))
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box2 = geompy.MakeBox(100., 0., 0., 200., 200., 300.)
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idbox2 = geompy.addToStudy(box2, "box2")
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print("Analysis of the geometry box2 :")
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subShellList = geompy.SubShapeAll(box2, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(box2, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(box2, geompy.ShapeType["EDGE"])
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print("number of Shells in box2 : ", len(subShellList))
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print("number of Faces in box2 : ", len(subFaceList))
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print("number of Edges in box2 : ", len(subEdgeList))
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box3 = geompy.MakeBox(0., 0., 300., 200., 200., 500.)
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idbox3 = geompy.addToStudy(box3, "box3")
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print("Analysis of the geometry box3 :")
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subShellList = geompy.SubShapeAll(box3, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(box3, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(box3, geompy.ShapeType["EDGE"])
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print("number of Shells in box3 : ", len(subShellList))
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print("number of Faces in box3 : ", len(subFaceList))
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print("number of Edges in box3 : ", len(subEdgeList))
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shell = geompy.MakePartition([box1, box2, box3])
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idshell = geompy.addToStudy(shell,"shell")
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print("Analysis of the geometry shell (union of box1, box2 and box3) :")
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subShellList = geompy.SubShapeAll(shell, geompy.ShapeType["SHELL"])
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subFaceList = geompy.SubShapeAll(shell, geompy.ShapeType["FACE"])
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subEdgeList = geompy.SubShapeAll(shell, geompy.ShapeType["EDGE"])
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print("number of Shells in shell : ", len(subShellList))
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print("number of Faces in shell : ", len(subFaceList))
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print("number of Edges in shell : ", len(subEdgeList))
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### ---------------------------- SMESH --------------------------------------
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# ---- init a Mesh with the shell
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mesh = smesh.Mesh(shell, "MeshBox3")
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# ---- set Hypothesis and Algorithm
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print("-------------------------- NumberOfSegments")
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numberOfSegments = 10
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regular1D = mesh.Segment()
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hypNbSeg = regular1D.NumberOfSegments(numberOfSegments)
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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(numberOfSegments))
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print("-------------------------- MaxElementArea")
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maxElementArea = 500
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mefisto2D = mesh.Triangle()
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hypArea = mefisto2D.MaxElementArea(maxElementArea)
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print(hypArea.GetName())
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print(hypArea.GetId())
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print(hypArea.GetMaxElementArea())
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smesh.SetName(hypArea, "MaxElementArea_" + str(maxElementArea))
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print("-------------------------- MaxElementVolume")
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maxElementVolume = 500
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netgen3D = mesh.Tetrahedron(smeshBuilder.NETGEN)
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hypVolume = netgen3D.MaxElementVolume(maxElementVolume)
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print(hypVolume.GetName())
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print(hypVolume.GetId())
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print(hypVolume.GetMaxElementVolume())
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smesh.SetName(hypVolume, "MaxElementVolume_" + str(maxElementVolume))
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print("-------------------------- compute shell")
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ret = mesh.Compute()
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print(ret)
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if ret != 0:
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log = mesh.GetLog(0) # no erase trace
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# for linelog in log:
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# print(linelog)
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print("Information about the MeshBox3:")
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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 volumes : ", mesh.NbVolumes())
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print("Number of tetrahedrons: ", mesh.NbTetras())
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else:
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print("probleme when computing the mesh")
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salome.sg.updateObjBrowser()
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