src/mesh/cfMesh/utilities/surfaceTools/meshSurfaceEdgeExtractor/meshSurfaceEdgeExtractor.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | cfMesh: A library for mesh generation
   4    \\    /   O peration     |
   5     \\  /    A nd           | Author: Franjo Juretic (franjo.juretic@c-fields.com)
   6      \\/     M anipulation  | Copyright (C) Creative Fields, Ltd.
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of cfMesh.
  10
  11     cfMesh is free software; you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation; either version 3 of the License, or (at your
  14     option) any later version.
  15
  16     cfMesh is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with cfMesh.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Description
  25
  26 \*---------------------------------------------------------------------------*/
  27
  28 #include "meshSurfaceEdgeExtractor.H"
  29 #include "demandDrivenData.H"
  30
  31 // #define DEBUGSearch
  32
  33 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  34
  35 namespace Foam
  36 {
  37
  38 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  39
  40 // Construct from mesh, octree, regions for boundary vertices
  41 meshSurfaceEdgeExtractor::meshSurfaceEdgeExtractor
  42 (
  43     polyMeshGen& mesh,
  44     const meshOctree& octree,
  45     const labelList& pointRegion
  46 )
  47 :
  48     mesh_(mesh),
  49     nPoints_(mesh.points().size()),
  50     boundaryCell_(mesh.cells().size(), false),
  51     nFacesInCell_(mesh.cells().size(), direction(0)),
  52     meshOctree_(octree),
  53     pointRegions_(pointRegion.size())
  54 {
  55     forAll(pointRegion, pointI)
  56         if( pointRegion[pointI] != -1 )
  57             pointRegions_.append(pointI, pointRegion[pointI]);
  58
  59     createEdgeVertices();
  60
  61     removeOldBoundaryFaces();
  62
  63     createBoundaryFaces();
  64 }
  65
  66 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
  67
  68 meshSurfaceEdgeExtractor::~meshSurfaceEdgeExtractor()
  69 {
  70 }
  71
  72 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  73
  74 void meshSurfaceEdgeExtractor::removeOldBoundaryFaces()
  75 {
  76     const labelList neighbour_ = mesh_.neighbour();
  77     polyMeshGenModifier meshModifier_(mesh_);
  78     cellListPMG& cells_ = meshModifier_.cellsAccess();
  79
  80     forAll(cells_, cellI)
  81     {
  82         const cell& c = cells_[cellI];
  83
  84         cell newC(c);
  85
  86         forAll(c, fI)
  87             if( neighbour_[c[fI]] != -1 )
  88             {
  89                 boundaryCell_[cellI] = true;
  90                 newC[nFacesInCell_[cellI]++] = c[fI];
  91             }
  92
  93         if( nFacesInCell_[cellI] < direction(c.size()) )
  94         {
  95             newC.setSize(nFacesInCell_[cellI]);
  96
  97             cells_[cellI] = newC;
  98         };
  99     }
 100
 101     PtrList<boundaryPatch>& boundaries = meshModifier_.boundariesAccess();
 102     boundaries.setSize(1);
 103     boundaries[0].patchSize() = 0;
 104     meshModifier_.facesAccess().setSize(boundaries[0].patchStart());
 105 }
 106
 107 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 108
 109 } // End namespace Foam
 110
 111 // ************************************************************************* //