src/SMESH_SWIG/ex09_grid4build.py

   1 #  -*- coding: iso-8859-1 -*-
   2 # Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
   3 #
   4 # Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   5 # CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2.1 of the License.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this library; if not, write to the Free Software
  19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20 #
  21 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  22 #
  23
  24 # =======================================
  25 #
  26 from geompy import *
  27
  28 import smesh
  29
  30 import math
  31
  32 # Geometry
  33 # ========
  34
  35 # Element of a grid compound by a square with a cylinder on each vertex build by points, edges, faces and solids
  36
  37 # Values
  38 # ------
  39
  40 ox = 0
  41 oy = 0
  42 oz = 0
  43
  44 arete   =  50
  45 hauteur = 100
  46
  47 rayon = 10
  48
  49 demi = rayon/2
  50 r3   = demi*math.sqrt(3)
  51
  52 # Points
  53 # ------
  54
  55 piecePoint111 = MakeVertex(ox+rayon      , oy, oz)
  56 piecePoint211 = MakeVertex(ox+arete-rayon, oy, oz)
  57 piecePoint112 = MakeVertex(ox            , oy, oz+rayon)
  58 piecePoint212 = MakeVertex(ox+arete      , oy, oz+rayon)
  59 piecePoint113 = MakeVertex(ox            , oy, oz+arete-rayon)
  60 piecePoint213 = MakeVertex(ox+arete      , oy, oz+arete-rayon)
  61 piecePoint114 = MakeVertex(ox+rayon      , oy, oz+arete)
  62 piecePoint214 = MakeVertex(ox+arete-rayon, oy, oz+arete)
  63
  64 pieceCenter1  = MakeVertex(ox            , oy, oz)
  65 pieceCenter2  = MakeVertex(ox+arete      , oy, oz)
  66 pieceCenter3  = MakeVertex(ox            , oy, oz+arete)
  67 pieceCenter4  = MakeVertex(ox+arete      , oy, oz+arete)
  68
  69 piecePass1    = MakeVertex(ox+demi       , oy, oz+r3)
  70 piecePass2    = MakeVertex(ox+arete-demi , oy, oz+r3)
  71 piecePass3    = MakeVertex(ox+arete-demi , oy, oz+arete-r3)
  72 piecePass4    = MakeVertex(ox+demi       , oy, oz+arete-r3)
  73
  74 # Edges
  75 # -----
  76
  77 pieceEdgeSquare1   = MakeEdge(piecePoint111, piecePoint211)
  78 pieceEdgeSquare2   = MakeEdge(piecePoint114, piecePoint214)
  79 pieceEdgeSquare3   = MakeEdge(piecePoint112, piecePoint113)
  80 pieceEdgeSquare4   = MakeEdge(piecePoint212, piecePoint213)
  81
  82 pieceEdgeDiagonal1 = MakeEdge(piecePoint111, piecePoint213)
  83 pieceEdgeDiagonal2 = MakeEdge(piecePoint112, piecePoint214)
  84
  85 pieceEdgeArc1 = MakeArc(piecePoint111, piecePass1, piecePoint112)
  86 pieceEdgeArc2 = MakeArc(piecePoint211, piecePass2, piecePoint212)
  87 pieceEdgeArc3 = MakeArc(piecePoint213, piecePass3, piecePoint214)
  88 pieceEdgeArc4 = MakeArc(piecePoint113, piecePass4, piecePoint114)
  89
  90 # Faces
  91 # -----
  92
  93 pieceFace1 = MakeQuad(pieceEdgeSquare1, pieceEdgeArc2, pieceEdgeSquare4, pieceEdgeDiagonal1)
  94 pieceFace2 = MakeQuad(pieceEdgeSquare2, pieceEdgeArc4, pieceEdgeSquare3, pieceEdgeDiagonal2)
  95
  96 pieceFace3 = MakeQuad(pieceEdgeArc1, pieceEdgeDiagonal1, pieceEdgeArc3, pieceEdgeDiagonal2)
  97
  98 # Solids
  99 # ------
 100
 101 pieceVector = MakeVectorDXDYDZ(0, 1, 0)
 102
 103 pieceSolid1 = MakePrismVecH(pieceFace1, pieceVector, hauteur)
 104 pieceSolid2 = MakePrismVecH(pieceFace2, pieceVector, hauteur)
 105 pieceSolid3 = MakePrismVecH(pieceFace3, pieceVector, hauteur)
 106
 107 # Compound and glue
 108 # -----------------
 109
 110 c_cpd = MakeCompound([pieceSolid1, pieceSolid2, pieceSolid3])
 111
 112 piece = MakeGlueFaces(c_cpd, 1.e-5)
 113
 114 # Add in study
 115 # ------------
 116
 117 piece_id = addToStudy(piece, "ex09_grid4build")
 118
 119 # Meshing
 120 # =======
 121
 122 smesh.SetCurrentStudy(salome.myStudy)
 123
 124 # Create a hexahedral mesh
 125 # ------------------------
 126
 127 hexa = smesh.Mesh(piece, "ex09_grid4build:hexa")
 128
 129 algo = hexa.Segment()
 130 algo.NumberOfSegments(6)
 131
 132 hexa.Quadrangle()
 133
 134 hexa.Hexahedron()
 135
 136 # Mesh calculus
 137 # -------------
 138
 139 hexa.Compute()