src/SMESH_SWIG/ex09_grid4build.py

   1 #  Copyright (C) 2007-2008  CEA/DEN, EDF R&D, OPEN CASCADE
   2 #
   3 #  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 #  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 #
   6 #  This library is free software; you can redistribute it and/or
   7 #  modify it under the terms of the GNU Lesser General Public
   8 #  License as published by the Free Software Foundation; either
   9 #  version 2.1 of the License.
  10 #
  11 #  This library is distributed in the hope that it will be useful,
  12 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 #  Lesser General Public License for more details.
  15 #
  16 #  You should have received a copy of the GNU Lesser General Public
  17 #  License along with this library; if not, write to the Free Software
  18 #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 #
  20 #  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 #
  22 # =======================================
  23 #
  24 from geompy import *
  25
  26 import smesh
  27
  28 import math
  29
  30 # Geometry
  31 # ========
  32
  33 # Element of a grid compound by a square with a cylinder on each vertex build by points, edges, faces and solids
  34
  35 # Values
  36 # ------
  37
  38 ox = 0
  39 oy = 0
  40 oz = 0
  41
  42 arete   =  50
  43 hauteur = 100
  44
  45 rayon = 10
  46
  47 demi = rayon/2
  48 r3   = demi*math.sqrt(3)
  49
  50 # Points
  51 # ------
  52
  53 piecePoint111 = MakeVertex(ox+rayon      , oy, oz)
  54 piecePoint211 = MakeVertex(ox+arete-rayon, oy, oz)
  55 piecePoint112 = MakeVertex(ox            , oy, oz+rayon)
  56 piecePoint212 = MakeVertex(ox+arete      , oy, oz+rayon)
  57 piecePoint113 = MakeVertex(ox            , oy, oz+arete-rayon)
  58 piecePoint213 = MakeVertex(ox+arete      , oy, oz+arete-rayon)
  59 piecePoint114 = MakeVertex(ox+rayon      , oy, oz+arete)
  60 piecePoint214 = MakeVertex(ox+arete-rayon, oy, oz+arete)
  61
  62 pieceCenter1  = MakeVertex(ox            , oy, oz)
  63 pieceCenter2  = MakeVertex(ox+arete      , oy, oz)
  64 pieceCenter3  = MakeVertex(ox            , oy, oz+arete)
  65 pieceCenter4  = MakeVertex(ox+arete      , oy, oz+arete)
  66
  67 piecePass1    = MakeVertex(ox+demi       , oy, oz+r3)
  68 piecePass2    = MakeVertex(ox+arete-demi , oy, oz+r3)
  69 piecePass3    = MakeVertex(ox+arete-demi , oy, oz+arete-r3)
  70 piecePass4    = MakeVertex(ox+demi       , oy, oz+arete-r3)
  71
  72 # Edges
  73 # -----
  74
  75 pieceEdgeSquare1   = MakeEdge(piecePoint111, piecePoint211)
  76 pieceEdgeSquare2   = MakeEdge(piecePoint114, piecePoint214)
  77 pieceEdgeSquare3   = MakeEdge(piecePoint112, piecePoint113)
  78 pieceEdgeSquare4   = MakeEdge(piecePoint212, piecePoint213)
  79
  80 pieceEdgeDiagonal1 = MakeEdge(piecePoint111, piecePoint213)
  81 pieceEdgeDiagonal2 = MakeEdge(piecePoint112, piecePoint214)
  82
  83 pieceEdgeArc1 = MakeArc(piecePoint111, piecePass1, piecePoint112)
  84 pieceEdgeArc2 = MakeArc(piecePoint211, piecePass2, piecePoint212)
  85 pieceEdgeArc3 = MakeArc(piecePoint213, piecePass3, piecePoint214)
  86 pieceEdgeArc4 = MakeArc(piecePoint113, piecePass4, piecePoint114)
  87
  88 # Faces
  89 # -----
  90
  91 pieceFace1 = MakeQuad(pieceEdgeSquare1, pieceEdgeArc2, pieceEdgeSquare4, pieceEdgeDiagonal1)
  92 pieceFace2 = MakeQuad(pieceEdgeSquare2, pieceEdgeArc4, pieceEdgeSquare3, pieceEdgeDiagonal2)
  93
  94 pieceFace3 = MakeQuad(pieceEdgeArc1, pieceEdgeDiagonal1, pieceEdgeArc3, pieceEdgeDiagonal2)
  95
  96 # Solids
  97 # ------
  98
  99 pieceVector = MakeVectorDXDYDZ(0, 1, 0)
 100
 101 pieceSolid1 = MakePrismVecH(pieceFace1, pieceVector, hauteur)
 102 pieceSolid2 = MakePrismVecH(pieceFace2, pieceVector, hauteur)
 103 pieceSolid3 = MakePrismVecH(pieceFace3, pieceVector, hauteur)
 104
 105 # Compound and glue
 106 # -----------------
 107
 108 c_cpd = MakeCompound([pieceSolid1, pieceSolid2, pieceSolid3])
 109
 110 piece = MakeGlueFaces(c_cpd, 1.e-5)
 111
 112 # Add in study
 113 # ------------
 114
 115 piece_id = addToStudy(piece, "ex09_grid4build")
 116
 117 # Meshing
 118 # =======
 119
 120 # Create a hexahedral mesh
 121 # ------------------------
 122
 123 hexa = smesh.Mesh(piece, "ex09_grid4build:hexa")
 124
 125 algo = hexa.Segment()
 126 algo.NumberOfSegments(6)
 127
 128 hexa.Quadrangle()
 129
 130 hexa.Hexahedron()
 131
 132 # Mesh calculus
 133 # -------------
 134
 135 hexa.Compute()