src/OpenFOAM/meshes/polyMesh/mapPolyMesh/mapPatchChange/mapPatchChange.H

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2008 OpenCFD Ltd.
   6      \\/     M anipulation  |
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM 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 2 of the License, or (at your
  14     option) any later version.
  15
  16     OpenFOAM 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 OpenFOAM; if not, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 Class
  26     Foam::mapPatchChange
  27
  28 Description
  29     Class containing mesh-to-mesh mapping information after a patch change
  30     operation.
  31
  32 SourceFiles
  33
  34 \*---------------------------------------------------------------------------*/
  35
  36 #ifndef mapPatchChange_H
  37 #define mapPatchChange_H
  38
  39 #include "labelList.H"
  40
  41 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  42
  43 namespace Foam
  44 {
  45
  46 /*---------------------------------------------------------------------------*\
  47                            Class mapPatchChange Declaration
  48 \*---------------------------------------------------------------------------*/
  49
  50 class mapPatchChange
  51 {
  52     // Private data
  53
  54         //- Old patches
  55         const label nOldPatches_;
  56
  57         //- Patch mapping array
  58         const labelList patchMap_;
  59
  60 public:
  61
  62     // Constructors
  63
  64         //- Construct from components
  65         mapPatchChange(const label nOldPatches, const labelList& patchMap)
  66         :
  67             nOldPatches_(nOldPatches),
  68             patchMap_(patchMap)
  69         {}
  70
  71
  72     // Member Functions
  73
  74         // Access
  75
  76             //- Number of old patches
  77             label nOldPatches() const
  78             {
  79                 return nOldPatches_;
  80             }
  81
  82             //- Patch map. Size of current patches.
  83             //  -1  : patch was added
  84             //  >=0 : old position of patch
  85             //  any original patch which is not in the list has been deleted
  86             const labelList& patchMap() const
  87             {
  88                 return patchMap_;
  89             }
  90
  91
  92         // Utility functions
  93
  94             //- labels of added patches
  95             labelList addedPatches() const
  96             {
  97                 labelList added(patchMap_.size());
  98
  99                 label addedI = 0;
 100
 101                 forAll(patchMap_, patchI)
 102                 {
 103                     if (patchMap_[patchI] == -1)
 104                     {
 105                         added[addedI++] = patchI;
 106                     }
 107                 }
 108                 added.setSize(addedI);
 109                 return added;
 110             }
 111
 112             //- labels (on old mesh) of deleted patches
 113             labelList deletedPatches() const
 114             {
 115                 labelList oldToNew(nOldPatches_, -1);
 116
 117                 // Mark all preserved patches
 118                 forAll(patchMap_, patchI)
 119                 {
 120                     if (patchMap_[patchI] != -1)
 121                     {
 122                         oldToNew[patchMap_[patchI]] = patchI;
 123                     }
 124                 }
 125
 126                 // Extract -1 elements from oldToNew. These are the deleted
 127                 // patches.
 128                 label deletedI = 0;
 129
 130                 forAll(oldToNew, oldPatchI)
 131                 {
 132                     if (oldToNew[oldPatchI] == -1)
 133                     {
 134                         oldToNew[deletedI++] = oldPatchI;
 135                     }
 136                 }
 137
 138                 oldToNew.setSize(deletedI);
 139
 140                 return oldToNew;
 141             }
 142 };
 143
 144
 145 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 146
 147 } // End namespace Foam
 148
 149 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 150
 151 #endif
 152
 153 // ************************************************************************* //