SALOME Mesh Module Developer: src/SMESH_SWIG/SMESH_mechanic

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00001 # -*- coding: utf-8 -*-
00002 # Copyright (C) 2007-2011  CEA/DEN, EDF R&D, OPEN CASCADE
00003 #
00004 # Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
00005 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
00006 #
00007 # This library is free software; you can redistribute it and/or
00008 # modify it under the terms of the GNU Lesser General Public
00009 # License as published by the Free Software Foundation; either
00010 # version 2.1 of the License.
00011 #
00012 # This library is distributed in the hope that it will be useful,
00013 # but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015 # Lesser General Public License for more details.
00016 #
00017 # You should have received a copy of the GNU Lesser General Public
00018 # License along with this library; if not, write to the Free Software
00019 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
00020 #
00021 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
00022 #
00023 
00024 #  File   : SMESH_withHole.py
00025 #  Author : Lucien PIGNOLONI
00026 #  Module : SMESH
00027 #  $Header: /home/server/cvs/SMESH/SMESH_SRC/src/SMESH_SWIG/SMESH_mechanic_editor.py,v 1.7.2.3.6.2.6.1 2011-06-02 05:57:31 vsr Exp $
00028 #-------------------------------------------------------------------------
00029 #
00030 import salome
00031 import geompy
00032 import smesh
00033 
00034 salome.salome_init()
00035 # ---------------------------- GEOM --------------------------------------
00036 
00037 # ---- define contigous arcs and segment to define a closed wire
00038 p1   = geompy.MakeVertex( 100.0,   0.0,  0.0 )
00039 p2   = geompy.MakeVertex(  50.0,  50.0,  0.0 )
00040 p3   = geompy.MakeVertex( 100.0, 100.0,  0.0 )
00041 arc1 = geompy.MakeArc( p1, p2, p3 )
00042 
00043 p4   = geompy.MakeVertex( 170.0, 100.0, 0.0 )
00044 seg1 = geompy.MakeVector( p3, p4 )
00045 
00046 p5   = geompy.MakeVertex( 200.0, 70.0, 0.0 )
00047 p6   = geompy.MakeVertex( 170.0, 40.0, 0.0 )
00048 arc2 = geompy.MakeArc( p4, p5, p6 )
00049 
00050 p7   = geompy.MakeVertex( 120.0, 30.0, 0.0 )
00051 arc3 = geompy.MakeArc( p6, p7, p1 )
00052 
00053 # ---- define a closed wire with arcs and segment
00054 List1 = []
00055 List1.append( arc1 )
00056 List1.append( seg1 )
00057 List1.append( arc2 )
00058 List1.append( arc3 )
00059 
00060 wire1 = geompy.MakeWire( List1 )
00061 Id_wire1 = geompy.addToStudy( wire1, "wire1" )
00062 
00063 # ---- define a planar face with wire
00064 WantPlanarFace = 1 #True
00065 face1 = geompy.MakeFace( wire1, WantPlanarFace )
00066 Id_face1 = geompy.addToStudy( face1, "face1" )
00067 
00068 # ---- create a shape by extrusion
00069 pO = geompy.MakeVertex( 0.0, 0.0,   0.0 )
00070 pz = geompy.MakeVertex( 0.0, 0.0, 100.0 )
00071 vz = geompy.MakeVector( pO, pz )
00072 
00073 prism1 = geompy.MakePrismVecH( face1, vz, 100.0 )
00074 Id_prism1 = geompy.addToStudy( prism1, "prism1" )
00075 
00076 # ---- create two cylinders
00077 pc1 = geompy.MakeVertex(  90.0, 50.0, -40.0 )
00078 pc2 = geompy.MakeVertex( 170.0, 70.0, -40.0 )
00079 
00080 radius = 20.0
00081 height = 180.0
00082 cyl1 = geompy.MakeCylinder( pc1, vz, radius, height )
00083 cyl2 = geompy.MakeCylinder( pc2, vz, radius, height )
00084 
00085 Id_Cyl1 = geompy.addToStudy( cyl1, "cyl1" )
00086 Id_Cyl2 = geompy.addToStudy( cyl2, "cyl2" )
00087 
00088 # ---- cut with cyl1
00089 shape = geompy.MakeBoolean( prism1, cyl1, 2 )
00090 
00091 # ---- fuse with cyl2 to obtain the final mechanic piece :)
00092 mechanic = geompy.MakeBoolean( shape, cyl2, 3 )
00093 Id_mechanic = geompy.addToStudy( mechanic, "mechanic" )
00094 
00095 # ---- explode on faces
00096 SubFaceL = geompy.SubShapeAllSorted(mechanic, geompy.ShapeType["FACE"])
00097 
00098 # ---- add a face sub shape in study to be meshed different
00099 sub_face1 = SubFaceL[0]
00100 name      = geompy.SubShapeName( sub_face1, mechanic )
00101 
00102 Id_SubFace1 = geompy.addToStudyInFather( mechanic, sub_face1, name )
00103 
00104 # ---- add a face sub shape in study to be meshed different
00105 sub_face2 = SubFaceL[4]
00106 name      = geompy.SubShapeName( sub_face2, mechanic )
00107 
00108 Id_SubFace2 = geompy.addToStudyInFather( mechanic, sub_face2, name )
00109 
00110 # ---- add a face sub shape in study to be meshed different
00111 sub_face3 = SubFaceL[5]
00112 name      = geompy.SubShapeName( sub_face3, mechanic )
00113 
00114 Id_SubFace3 = geompy.addToStudyInFather( mechanic, sub_face3, name )
00115 
00116 # ---- add a face sub shape in study to be meshed different
00117 sub_face4 = SubFaceL[10]
00118 name      = geompy.SubShapeName( sub_face4, mechanic )
00119 
00120 Id_SubFace4 = geompy.addToStudyInFather( mechanic, sub_face4, name )
00121 
00122 # ---------------------------- SMESH --------------------------------------
00123 smesh.SetCurrentStudy(salome.myStudy)
00124 
00125 # -- Init --
00126 shape_mesh = salome.IDToObject( Id_mechanic )
00127 
00128 mesh = smesh.Mesh(shape_mesh, "Mesh_mechanic")
00129 
00130 print "-------------------------- NumberOfSegments"
00131 
00132 numberOfSegment = 10
00133 
00134 algo = mesh.Segment()
00135 hypNbSeg = algo.NumberOfSegments(numberOfSegment)
00136 print hypNbSeg.GetName()
00137 print hypNbSeg.GetId()
00138 print hypNbSeg.GetNumberOfSegments()
00139 smesh.SetName(hypNbSeg, "NumberOfSegments_" + str(numberOfSegment))
00140 
00141 
00142 print "-------------------------- MaxElementArea"
00143 
00144 maxElementArea = 25
00145 
00146 algo = mesh.Triangle()
00147 hypArea25 = algo.MaxElementArea(maxElementArea)
00148 print hypArea25.GetName()
00149 print hypArea25.GetId()
00150 print hypArea25.GetMaxElementArea()
00151 smesh.SetName(hypArea25, "MaxElementArea_" + str(maxElementArea))
00152 
00153 
00154 # Create submesh on sub_face1 - sub_face4
00155 # ---------------------------------------
00156 
00157 # Set 2D algorithm to submesh on sub_face1
00158 algo = mesh.Quadrangle(sub_face1)
00159 smesh.SetName(algo.GetSubMesh(), "SubMeshFace1")
00160 submesh1 = algo.GetSubMesh()
00161 
00162 # Set 2D algorithm to submesh on sub_face2
00163 algo = mesh.Quadrangle(sub_face2)
00164 smesh.SetName(algo.GetSubMesh(), "SubMeshFace2")
00165 submesh2 = algo.GetSubMesh()
00166 
00167 # Set 2D algorithm to submesh on sub_face3
00168 algo = mesh.Quadrangle(sub_face3)
00169 smesh.SetName(algo.GetSubMesh(), "SubMeshFace3")
00170 submesh3 = algo.GetSubMesh()
00171 
00172 # Set 2D algorithm to submesh on sub_face4
00173 algo = mesh.Quadrangle(sub_face4)
00174 smesh.SetName(algo.GetSubMesh(), "SubMeshFace4")
00175 submesh4 = algo.GetSubMesh()
00176 
00177 
00178 print "-------------------------- compute the mesh of the mechanic piece"
00179 
00180 mesh.Compute()
00181 
00182 print "Information about the Mesh_mechanic:"
00183 print "Number of nodes       : ", mesh.NbNodes()
00184 print "Number of edges       : ", mesh.NbEdges()
00185 print "Number of faces       : ", mesh.NbFaces()
00186 print "Number of triangles   : ", mesh.NbTriangles()
00187 print "Number of quadrangles : ", mesh.NbQuadrangles()
00188 print "Number of volumes     : ", mesh.NbVolumes()
00189 print "Number of tetrahedrons: ", mesh.NbTetras()
00190 
00191 
00192 #1 cutting of quadrangles of the 'SubMeshFace2' submesh
00193 mesh.SplitQuadObject(submesh2, 1)
00194 
00195 #2 cutting of triangles of the group
00196 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 ]
00197 GroupTriToQuad = mesh.MakeGroupByIds("Group of faces (quad)", smesh.FACE, FacesTriToQuad)
00198 mesh.TriToQuadObject(GroupTriToQuad, None , 1.57)
00199 
00200 #3 extrusion of the group
00201 point = smesh.PointStruct(0, 0, 5)
00202 vector = smesh.DirStruct(point) 
00203 mesh.ExtrusionSweepObject(GroupTriToQuad, vector, 5)
00204 
00205 #4 mirror object
00206 mesh.Mirror([], smesh.AxisStruct(0, 0, 0, 0, 0, 0), smesh.POINT, 0) 
00207 
00208 #5 mesh translation
00209 point = smesh.PointStruct(10, 10, 10)
00210 vector = smesh.DirStruct(point) 
00211 mesh.Translate([], vector, 0)
00212 
00213 #6 mesh rotation
00214 axisXYZ = smesh.AxisStruct(0, 0, 0, 10, 10, 10)
00215 angle180 =  180*3.141/180
00216 mesh.Rotate([], axisXYZ, angle180, 0)
00217 
00218 #7 group smoothing
00219 FacesSmooth = [864, 933, 941, 950, 1005, 1013]
00220 GroupSmooth = mesh.MakeGroupByIds("Group of faces (smooth)", smesh.FACE, FacesSmooth)
00221 mesh.SmoothObject(GroupSmooth, [], 20, 2, smesh.CENTROIDAL_SMOOTH)
00222 
00223 #8 rotation sweep object
00224 FacesRotate = [492, 493, 502, 503]
00225 GroupRotate = mesh.MakeGroupByIds("Group of faces (rotate)", smesh.FACE, FacesRotate)
00226 angle45 =  45*3.141/180
00227 axisXYZ = smesh.AxisStruct(-38.3128, -73.3658, -133.321, -13.3402, -13.3265, 6.66632)
00228 mesh.RotationSweepObject(GroupRotate, axisXYZ, angle45, 4, 1e-5)
00229 
00230 #9 reorientation of the submesh1
00231 mesh.ReorientObject(submesh1)
00232 
00233 salome.sg.updateObjBrowser(1)