mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
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124 lines
3.6 KiB
Python
124 lines
3.6 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2007-2023 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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# GEOM GEOM_SWIG : binding of C++ implementation with Python
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# File : GEOM_Sphere.py
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# Author : Damien COQUERET, Open CASCADE
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# Module : GEOM
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# $Header:
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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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import math
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# It is an example of creating a hexahedrical mesh on a sphere.
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#
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# Used approach allows to avoid problems with degenerated and
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# seam edges without special processing of geometrical shapes
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#-----------------------------------------------------------------------
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#Variables
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Radius = 100.
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Dist = Radius / 2.
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Factor = 2.5
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Angle90 = math.pi / 2.
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NbSeg = 10
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PointsList = []
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ShapesList = []
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#Basic Elements
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P0 = geompy.MakeVertex(0., 0., 0.)
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P1 = geompy.MakeVertex(-Dist, -Dist, -Dist)
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P2 = geompy.MakeVertex(-Dist, -Dist, Dist)
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P3 = geompy.MakeVertex(-Dist, Dist, Dist)
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P4 = geompy.MakeVertex(-Dist, Dist, -Dist)
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VZ = geompy.MakeVectorDXDYDZ(0., 0., 1.)
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#Construction Elements
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PointsList.append(P1)
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PointsList.append(P2)
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PointsList.append(P3)
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PointsList.append(P4)
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PointsList.append(P1)
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PolyLine = geompy.MakePolyline(PointsList)
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Face1 = geompy.MakeFace(PolyLine, 1)
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Face2 = geompy.MakeScaleTransform(Face1, P0, Factor)
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Face3 = geompy.MakeScaleTransform(Face1, P0, -1.)
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#Models
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Sphere = geompy.MakeSphereR(Radius)
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Block = geompy.MakeHexa2Faces(Face1, Face2)
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Cube = geompy.MakeHexa2Faces(Face1, Face3)
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Common1 = geompy.MakeBoolean(Sphere, Block, 1)
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Common2 = geompy.MakeRotation(Common1, VZ, Angle90)
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MultiBlock1 = geompy.MakeMultiTransformation1D(Common1, 20, -1, 3)
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MultiBlock2 = geompy.MakeMultiTransformation1D(Common2, 30, -1, 3)
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#Reconstruct sphere from several blocks
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ShapesList.append(Cube)
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ShapesList.append(MultiBlock1)
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ShapesList.append(MultiBlock2)
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Compound = geompy.MakeCompound(ShapesList)
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Result = geompy.MakeGlueFaces(Compound, 0.1)
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#addToStudy
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Id_Sphere = geompy.addToStudy(Sphere, "Sphere")
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Id_Cube = geompy.addToStudy(Cube, "Cube")
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Id_Common1 = geompy.addToStudy(Common1, "Common1")
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Id_Common2 = geompy.addToStudy(Common2, "Common2")
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Id_MultiBlock1 = geompy.addToStudy(MultiBlock1, "MultiBlock1")
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Id_MultiBlock2 = geompy.addToStudy(MultiBlock2, "MultiBlock2")
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Id_Result = geompy.addToStudy(Result, "Result")
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#-----------------------------------------------------------------------
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#Meshing
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my_hexa = smesh.Mesh(Result, "Sphere_Mesh")
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algo = my_hexa.Segment()
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algo.NumberOfSegments(NbSeg)
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my_hexa.Quadrangle()
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my_hexa.Hexahedron()
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isDone = my_hexa.Compute()
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if not isDone:
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raise Exception("Error when computing Mesh")
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salome.sg.updateObjBrowser()
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