src/SMESH_SWIG/ex09_grid4build.py

   1 #  -*- coding: iso-8859-1 -*-
   2 # Copyright (C) 2007-2020  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, or (at your option) any later version.
  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 import salome
  27 salome.salome_init()
  28 import GEOM
  29 from salome.geom import geomBuilder
  30 geompy = geomBuilder.New()
  31
  32 import SMESH, SALOMEDS
  33 from salome.smesh import smeshBuilder
  34 smesh =  smeshBuilder.New()
  35
  36 import math
  37
  38 # Geometry
  39 # ========
  40
  41 # Element of a grid compound by a square with a cylinder on each vertex build by points, edges, faces and solids
  42
  43 # Values
  44 # ------
  45
  46 ox = 0
  47 oy = 0
  48 oz = 0
  49
  50 arete   =  50
  51 hauteur = 100
  52
  53 rayon = 10
  54
  55 demi = rayon/2
  56 r3   = demi*math.sqrt(3)
  57
  58 # Points
  59 # ------
  60
  61 piecePoint111 = geompy.MakeVertex(ox+rayon      , oy, oz)
  62 piecePoint211 = geompy.MakeVertex(ox+arete-rayon, oy, oz)
  63 piecePoint112 = geompy.MakeVertex(ox            , oy, oz+rayon)
  64 piecePoint212 = geompy.MakeVertex(ox+arete      , oy, oz+rayon)
  65 piecePoint113 = geompy.MakeVertex(ox            , oy, oz+arete-rayon)
  66 piecePoint213 = geompy.MakeVertex(ox+arete      , oy, oz+arete-rayon)
  67 piecePoint114 = geompy.MakeVertex(ox+rayon      , oy, oz+arete)
  68 piecePoint214 = geompy.MakeVertex(ox+arete-rayon, oy, oz+arete)
  69
  70 pieceCenter1  = geompy.MakeVertex(ox            , oy, oz)
  71 pieceCenter2  = geompy.MakeVertex(ox+arete      , oy, oz)
  72 pieceCenter3  = geompy.MakeVertex(ox            , oy, oz+arete)
  73 pieceCenter4  = geompy.MakeVertex(ox+arete      , oy, oz+arete)
  74
  75 piecePass1    = geompy.MakeVertex(ox+demi       , oy, oz+r3)
  76 piecePass2    = geompy.MakeVertex(ox+arete-demi , oy, oz+r3)
  77 piecePass3    = geompy.MakeVertex(ox+arete-demi , oy, oz+arete-r3)
  78 piecePass4    = geompy.MakeVertex(ox+demi       , oy, oz+arete-r3)
  79
  80 # Edges
  81 # -----
  82
  83 pieceEdgeSquare1   = geompy.MakeEdge(piecePoint111, piecePoint211)
  84 pieceEdgeSquare2   = geompy.MakeEdge(piecePoint114, piecePoint214)
  85 pieceEdgeSquare3   = geompy.MakeEdge(piecePoint112, piecePoint113)
  86 pieceEdgeSquare4   = geompy.MakeEdge(piecePoint212, piecePoint213)
  87
  88 pieceEdgeDiagonal1 = geompy.MakeEdge(piecePoint111, piecePoint213)
  89 pieceEdgeDiagonal2 = geompy.MakeEdge(piecePoint112, piecePoint214)
  90
  91 pieceEdgeArc1 = geompy.MakeArc(piecePoint111, piecePass1, piecePoint112)
  92 pieceEdgeArc2 = geompy.MakeArc(piecePoint211, piecePass2, piecePoint212)
  93 pieceEdgeArc3 = geompy.MakeArc(piecePoint213, piecePass3, piecePoint214)
  94 pieceEdgeArc4 = geompy.MakeArc(piecePoint113, piecePass4, piecePoint114)
  95
  96 # Faces
  97 # -----
  98
  99 pieceFace1 = geompy.MakeQuad(pieceEdgeSquare1, pieceEdgeArc2, pieceEdgeSquare4, pieceEdgeDiagonal1)
 100 pieceFace2 = geompy.MakeQuad(pieceEdgeSquare2, pieceEdgeArc4, pieceEdgeSquare3, pieceEdgeDiagonal2)
 101
 102 pieceFace3 = geompy.MakeQuad(pieceEdgeArc1, pieceEdgeDiagonal1, pieceEdgeArc3, pieceEdgeDiagonal2)
 103
 104 # Solids
 105 # ------
 106
 107 pieceVector = geompy.MakeVectorDXDYDZ(0, 1, 0)
 108
 109 pieceSolid1 = geompy.MakePrismVecH(pieceFace1, pieceVector, hauteur)
 110 pieceSolid2 = geompy.MakePrismVecH(pieceFace2, pieceVector, hauteur)
 111 pieceSolid3 = geompy.MakePrismVecH(pieceFace3, pieceVector, hauteur)
 112
 113 # Compound and glue
 114 # -----------------
 115
 116 c_cpd = geompy.MakeCompound([pieceSolid1, pieceSolid2, pieceSolid3])
 117
 118 piece = geompy.MakeGlueFaces(c_cpd, 1.e-5)
 119
 120 # Add in study
 121 # ------------
 122
 123 piece_id = geompy.addToStudy(piece, "ex09_grid4build")
 124
 125 # Meshing
 126 # =======
 127
 128 # Create a hexahedral mesh
 129 # ------------------------
 130
 131 hexa = smesh.Mesh(piece, "ex09_grid4build:hexa")
 132
 133 algo = hexa.Segment()
 134 algo.NumberOfSegments(6)
 135
 136 hexa.Quadrangle()
 137
 138 hexa.Hexahedron()
 139
 140 # Mesh calculus
 141 # -------------
 142
 143 hexa.Compute()
 144
 145 # Update object browser
 146 # ---------------------
 147
 148 salome.sg.updateObjBrowser()