src/SMESH_SWIG/ex09_grid4build.py

   1 #  -*- coding: iso-8859-1 -*-
   2 #  Copyright (C) 2007-2008  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 from geompy import *
  26
  27 import smesh
  28
  29 import math
  30
  31 # Geometry
  32 # ========
  33
  34 # Element of a grid compound by a square with a cylinder on each vertex build by points, edges, faces and solids
  35
  36 # Values
  37 # ------
  38
  39 ox = 0
  40 oy = 0
  41 oz = 0
  42
  43 arete   =  50
  44 hauteur = 100
  45
  46 rayon = 10
  47
  48 demi = rayon/2
  49 r3   = demi*math.sqrt(3)
  50
  51 # Points
  52 # ------
  53
  54 piecePoint111 = MakeVertex(ox+rayon      , oy, oz)
  55 piecePoint211 = MakeVertex(ox+arete-rayon, oy, oz)
  56 piecePoint112 = MakeVertex(ox            , oy, oz+rayon)
  57 piecePoint212 = MakeVertex(ox+arete      , oy, oz+rayon)
  58 piecePoint113 = MakeVertex(ox            , oy, oz+arete-rayon)
  59 piecePoint213 = MakeVertex(ox+arete      , oy, oz+arete-rayon)
  60 piecePoint114 = MakeVertex(ox+rayon      , oy, oz+arete)
  61 piecePoint214 = MakeVertex(ox+arete-rayon, oy, oz+arete)
  62
  63 pieceCenter1  = MakeVertex(ox            , oy, oz)
  64 pieceCenter2  = MakeVertex(ox+arete      , oy, oz)
  65 pieceCenter3  = MakeVertex(ox            , oy, oz+arete)
  66 pieceCenter4  = MakeVertex(ox+arete      , oy, oz+arete)
  67
  68 piecePass1    = MakeVertex(ox+demi       , oy, oz+r3)
  69 piecePass2    = MakeVertex(ox+arete-demi , oy, oz+r3)
  70 piecePass3    = MakeVertex(ox+arete-demi , oy, oz+arete-r3)
  71 piecePass4    = MakeVertex(ox+demi       , oy, oz+arete-r3)
  72
  73 # Edges
  74 # -----
  75
  76 pieceEdgeSquare1   = MakeEdge(piecePoint111, piecePoint211)
  77 pieceEdgeSquare2   = MakeEdge(piecePoint114, piecePoint214)
  78 pieceEdgeSquare3   = MakeEdge(piecePoint112, piecePoint113)
  79 pieceEdgeSquare4   = MakeEdge(piecePoint212, piecePoint213)
  80
  81 pieceEdgeDiagonal1 = MakeEdge(piecePoint111, piecePoint213)
  82 pieceEdgeDiagonal2 = MakeEdge(piecePoint112, piecePoint214)
  83
  84 pieceEdgeArc1 = MakeArc(piecePoint111, piecePass1, piecePoint112)
  85 pieceEdgeArc2 = MakeArc(piecePoint211, piecePass2, piecePoint212)
  86 pieceEdgeArc3 = MakeArc(piecePoint213, piecePass3, piecePoint214)
  87 pieceEdgeArc4 = MakeArc(piecePoint113, piecePass4, piecePoint114)
  88
  89 # Faces
  90 # -----
  91
  92 pieceFace1 = MakeQuad(pieceEdgeSquare1, pieceEdgeArc2, pieceEdgeSquare4, pieceEdgeDiagonal1)
  93 pieceFace2 = MakeQuad(pieceEdgeSquare2, pieceEdgeArc4, pieceEdgeSquare3, pieceEdgeDiagonal2)
  94
  95 pieceFace3 = MakeQuad(pieceEdgeArc1, pieceEdgeDiagonal1, pieceEdgeArc3, pieceEdgeDiagonal2)
  96
  97 # Solids
  98 # ------
  99
 100 pieceVector = MakeVectorDXDYDZ(0, 1, 0)
 101
 102 pieceSolid1 = MakePrismVecH(pieceFace1, pieceVector, hauteur)
 103 pieceSolid2 = MakePrismVecH(pieceFace2, pieceVector, hauteur)
 104 pieceSolid3 = MakePrismVecH(pieceFace3, pieceVector, hauteur)
 105
 106 # Compound and glue
 107 # -----------------
 108
 109 c_cpd = MakeCompound([pieceSolid1, pieceSolid2, pieceSolid3])
 110
 111 piece = MakeGlueFaces(c_cpd, 1.e-5)
 112
 113 # Add in study
 114 # ------------
 115
 116 piece_id = addToStudy(piece, "ex09_grid4build")
 117
 118 # Meshing
 119 # =======
 120
 121 # Create a hexahedral mesh
 122 # ------------------------
 123
 124 hexa = smesh.Mesh(piece, "ex09_grid4build:hexa")
 125
 126 algo = hexa.Segment()
 127 algo.NumberOfSegments(6)
 128
 129 hexa.Quadrangle()
 130
 131 hexa.Hexahedron()
 132
 133 # Mesh calculus
 134 # -------------
 135
 136 hexa.Compute()