src/tetFiniteElement/tetPolyMesh/tetPolyMeshLduAddressing.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | foam-extend: Open Source CFD
   4    \\    /   O peration     | Version:     3.2
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   8 License
   9     This file is part of foam-extend.
  10
  11     foam-extend 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     foam-extend is distributed in the hope that it will be useful, but
  17     WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19     General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Class
  25     tetPolyMeshLduAddressing
  26
  27 Description
  28
  29 Author
  30     Hrvoje Jasak.  All rights reserved.
  31
  32 \*---------------------------------------------------------------------------*/
  33
  34 #include "tetPolyMeshLduAddressing.H"
  35 #include "globalMeshData.H"
  36
  37 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  38
  39 Foam::tetPolyMeshLduAddressing::tetPolyMeshLduAddressing
  40 (
  41     const tetPolyMesh& mesh
  42 )
  43 :
  44     lduAddressing(mesh.nPoints()),
  45     lowerAddr_(mesh.nEdges(), -1),
  46     upperAddr_(mesh.nEdges(), -1),
  47     patchAddr_(mesh.boundary().size()),
  48     patchSchedule_(mesh.globalData().patchSchedule())
  49 {
  50     // Get reference to edges
  51     const edgeList& meshEdges = mesh().edges();
  52
  53     // Get references to pointFaces and pointCells
  54     const labelListList& pointFaces = mesh().pointFaces();
  55     const labelListList& pointCells = mesh().pointCells();
  56
  57     // Loop through all points
  58     label nCreatedEdges = 0;
  59     label curOwner = 0;
  60     label edgeI = 0;
  61
  62     // Loop through all points
  63     forAll (pointFaces, pointI)
  64     {
  65         // Add the point neighbours
  66
  67         // The edge construction is such that the end label (neighbour)
  68         // is higher than the start label (owner)
  69         while
  70         (
  71             edgeI < meshEdges.size()
  72          && meshEdges[edgeI].start() == pointI
  73         )
  74         {
  75             lowerAddr_[nCreatedEdges] = curOwner;
  76             upperAddr_[nCreatedEdges] = meshEdges[edgeI].end();
  77             nCreatedEdges++;
  78
  79             edgeI++;
  80         }
  81
  82         // Add the face neighbours
  83
  84         // Get the sorted list of pointFaces
  85         const labelList& curPointFaces = pointFaces[pointI];
  86
  87         forAll (curPointFaces, faceI)
  88         {
  89             // add as neighbour
  90             lowerAddr_[nCreatedEdges] = curOwner;
  91             upperAddr_[nCreatedEdges] =
  92                 mesh.faceOffset() + curPointFaces[faceI];
  93             nCreatedEdges++;
  94         }
  95
  96         // Add the cell neighbours
  97
  98         // Get the list of sorted pointCells
  99         const labelList& curPointCells = pointCells[pointI];
 100
 101         forAll (curPointCells, cellI)
 102         {
 103             // Add as neighbour
 104             lowerAddr_[nCreatedEdges] = curOwner;
 105             upperAddr_[nCreatedEdges] =
 106                 mesh.cellOffset() + curPointCells[cellI];
 107             nCreatedEdges++;
 108         }
 109
 110         // Increment the current owner node
 111         curOwner++;
 112     }
 113
 114     // Loop through all internal faces and add owner and neighbour of the face
 115     const unallocLabelList& meshOwner = mesh().faceOwner();
 116     const unallocLabelList& meshNeighbour = mesh().faceNeighbour();
 117
 118     forAll (meshOwner, faceI)
 119     {
 120         // Add owner cell centre
 121         lowerAddr_[nCreatedEdges] = curOwner;
 122
 123         upperAddr_[nCreatedEdges] = mesh.cellOffset() + meshOwner[faceI];
 124
 125         nCreatedEdges++;
 126
 127         // Inelegant. Change.
 128         if (faceI < meshNeighbour.size())
 129         {
 130             // Add neighbour cell centre
 131             lowerAddr_[nCreatedEdges] = curOwner;
 132             upperAddr_[nCreatedEdges] =
 133                 mesh.cellOffset() + meshNeighbour[faceI];
 134             nCreatedEdges++;
 135         }
 136
 137         curOwner++;
 138     }
 139
 140     // Add dummy boundary addressing
 141     forAll (patchAddr_, patchI)
 142     {
 143         patchAddr_[patchI].setSize(0);
 144     }
 145
 146     if (nCreatedEdges != mesh.nEdges())
 147     {
 148         FatalErrorIn
 149         (
 150             "tetPolyMeshLduAddressing::"
 151             "tetPolyMeshLduAddressing\n"
 152             "(\n"
 153             "    const tetPolyMesh& mesh\n"
 154             ")"
 155         )   << "Problem with edge counting in lduAddressing.  nCreatedEdges: "
 156             << nCreatedEdges << " nEdges: " << mesh.nEdges()
 157             << abort(FatalError);
 158     }
 159 }
 160
 161
 162 // ************************************************************************* //