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https://git.salome-platform.org/gitpub/modules/smesh.git
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194 lines
5.4 KiB
Python
Executable File
194 lines
5.4 KiB
Python
Executable File
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2008 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.
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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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#==============================================================================
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# Info.
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# Bug (from script, bug) : SMESH_demo_hexa2_upd.py, PAL6781
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# Modified : 25/11/2004
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# Author : Kovaltchuk Alexey
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# Project : PAL/SALOME
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#==============================================================================
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# Tetrahedrization of a geometry (box minus a inner cylinder).
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# Hypothesis and algorithms for the mesh generation are not global:
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# the mesh of some edges is thinner
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#
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import salome
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import geompy
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import smesh
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import math
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# -----------------------------------------------------------------------------
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ShapeTypeShell = 3
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ShapeTypeFace = 4
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ShapeTypeEdge = 6
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a = math.sqrt(2.)/4.
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ma = - a
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zero = 0.
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un = 1.
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mun= - un
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demi = 1./2.
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Orig = geompy.MakeVertex(zero,zero,zero)
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P0 = geompy.MakeVertex(a,a,zero)
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P1 = geompy.MakeVertex(zero,demi,zero)
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P2 = geompy.MakeVertex(ma,a,zero)
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P3 = geompy.MakeVertex(mun,un,zero)
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P4 = geompy.MakeVertex(un,un,zero)
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P5 = geompy.MakeVertex(zero,zero,un)
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arc = geompy.MakeArc(P0,P1,P2)
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e1 = geompy.MakeEdge(P2,P3)
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e2 = geompy.MakeEdge(P3,P4)
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e3 = geompy.MakeEdge(P4,P0)
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list = []
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list.append(arc)
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list.append(e1)
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list.append(e2)
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list.append(e3)
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wire = geompy.MakeWire(list)
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face = geompy.MakeFace(wire,1)
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dir = geompy.MakeVector(Orig,P5)
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vol1 = geompy.MakePipe(face,dir)
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angle = math.pi/2.
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#dir = geom.MakeVector(Orig,P5)
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vol2 = geompy.MakeRotation(vol1,dir,angle)
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vol3 = geompy.MakeRotation(vol2,dir,angle)
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vol4 = geompy.MakeRotation(vol3,dir,angle)
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list = []
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list.append(vol1)
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list.append(vol2)
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list.append(vol3)
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list.append(vol4)
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volComp = geompy.MakeCompound(list)
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tol3d = 1.e-3
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vol = geompy.MakeGlueFaces(volComp,tol3d)
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idVol = geompy.addToStudy(vol,"volume")
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print "Analysis of the final volume:"
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subShellList = geompy.SubShapeAllSorted(vol,ShapeTypeShell)
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subFaceList = geompy.SubShapeAllSorted(vol,ShapeTypeFace)
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subEdgeList = geompy.SubShapeAllSorted(vol,ShapeTypeEdge)
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print "number of Shells in the volume : ",len(subShellList)
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print "number of Faces in the volume : ",len(subFaceList)
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print "number of Edges in the volume : ",len(subEdgeList)
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idSubEdge = []
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for k in range(len(subEdgeList)):
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idSubEdge.append(geompy.addToStudyInFather(vol,subEdgeList[k],"SubEdge"+str(k)))
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edgeZ = []
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edgeZ.append(subEdgeList[0])
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edgeZ.append(subEdgeList[3])
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edgeZ.append(subEdgeList[10])
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edgeZ.append(subEdgeList[11])
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edgeZ.append(subEdgeList[20])
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edgeZ.append(subEdgeList[21])
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edgeZ.append(subEdgeList[28])
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edgeZ.append(subEdgeList[31])
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idEdgeZ = []
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for i in range(8):
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idEdgeZ.append(geompy.addToStudyInFather(vol,edgeZ[i],"EdgeZ"+str(i+1)))
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### ---------------------------- SMESH --------------------------------------
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smesh.SetCurrentStudy(salome.myStudy)
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# ---- init a Mesh with the volume
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mesh = smesh.Mesh(vol, "meshVolume")
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# ---- set Hypothesis and Algorithm to main shape
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print "-------------------------- NumberOfSegments the global one"
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numberOfSegments = 10
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regular1D = mesh.Segment()
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regular1D.SetName("Wire Discretisation")
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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")
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print "-------------------------- Quadrangle_2D"
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quad2D=mesh.Quadrangle()
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quad2D.SetName("Quadrangle_2D")
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print "-------------------------- Hexa_3D"
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hexa3D=mesh.Hexahedron()
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hexa3D.SetName("Hexa_3D")
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print "-------------------------- NumberOfSegments in the Z direction"
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numberOfSegmentsZ = 40
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for i in range(8):
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print "-------------------------- add hypothesis to edge in the Z directions", (i+1)
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algo = mesh.Segment(edgeZ[i])
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hyp = algo.NumberOfSegments(numberOfSegmentsZ)
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smesh.SetName(hyp, "NumberOfSegmentsZ")
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smesh.SetName(algo.GetSubMesh(), "SubMeshEdgeZ_"+str(i+1))
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salome.sg.updateObjBrowser(1)
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print "-------------------------- compute the mesh of the volume"
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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 MeshBox :"
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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 "problem when Computing the mesh"
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salome.sg.updateObjBrowser(1)
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