applications/utilities/postProcessing/miscellaneous/postChannel/channelIndexTemplates.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | foam-extend: Open Source CFD
   4    \\    /   O peration     | Version:     3.2
   5     \\  /    A nd           | Web:         http://www.foam-extend.org
   6      \\/     M anipulation  | For copyright notice see file Copyright
   7 -------------------------------------------------------------------------------
   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 \*---------------------------------------------------------------------------*/
  25
  26 #include "channelIndex.H"
  27
  28 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
  29
  30 template<class T>
  31 Foam::Field<T> Foam::channelIndex::regionSum(const Field<T>& cellField) const
  32 {
  33     Field<T> regionField(cellRegion_().nRegions(), pTraits<T>::zero);
  34
  35     forAll(cellRegion_(), cellI)
  36     {
  37         regionField[cellRegion_()[cellI]] += cellField[cellI];
  38     }
  39
  40     // Global sum
  41     Pstream::listCombineGather(regionField, plusEqOp<T>());
  42     Pstream::listCombineScatter(regionField);
  43
  44     return regionField;
  45 }
  46
  47
  48 template<class T>
  49 Foam::Field<T> Foam::channelIndex::collapse
  50 (
  51     const Field<T>& cellField,
  52     const bool asymmetric
  53 ) const
  54 {
  55     // Average and order
  56     const Field<T> summedField(regionSum(cellField));
  57
  58     Field<T> regionField
  59     (
  60         summedField
  61       / regionCount_,
  62         sortMap_
  63     );
  64
  65     // Symmetry?
  66     if (symmetric_)
  67     {
  68         label nlb2 = cellRegion_().nRegions()/2;
  69
  70         if (asymmetric)
  71         {
  72             for (label j=0; j<nlb2; j++)
  73             {
  74                 regionField[j] =
  75                     0.5
  76                   * (
  77                         regionField[j]
  78                       - regionField[cellRegion_().nRegions() - j - 1]
  79                     );
  80             }
  81         }
  82         else
  83         {
  84             for (label j=0; j<nlb2; j++)
  85             {
  86                 regionField[j] =
  87                     0.5
  88                   * (
  89                         regionField[j]
  90                       + regionField[cellRegion_().nRegions() - j - 1]
  91                     );
  92             }
  93         }
  94
  95         regionField.setSize(nlb2);
  96     }
  97
  98     return regionField;
  99 }
 100
 101
 102 // ************************************************************************* //