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fftRenumber.H
Go to the documentation of this file.
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2018 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Global
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fftRenumber
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Description
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Multi-dimensional renumbering used in the Numerical Recipes
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fft routine.
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SourceFiles
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fftRenumber.C
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\*---------------------------------------------------------------------------*/
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#ifndef fftRenumber_H
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#define fftRenumber_H
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#include "
complex.H
"
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#include "
List.H
"
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#include "
labelList.H
"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// Recursively evaluate the indexing necessary to do the folding of the fft
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// data. We recurse until we have the indexing ncessary for the folding in all
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// directions.
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void
fftRenumberRecurse
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(
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List<complex>& data,
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List<complex>& renumData,
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const
labelList
& nn,
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label
nnprod,
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label
ii,
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label
l1,
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label
l2
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);
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// Fold the n-d data array to get the fft components in the right places.
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void
fftRenumber
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(
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List<complex>& data,
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const
labelList
& nn
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);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
Foam::fftRenumber
void fftRenumber(List< complex > &data, const labelList &nn)
Definition:
fftRenumber.C:96
Foam::label
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition:
label.H:59
labelList.H
List.H
Foam::labelList
List< label > labelList
A List of labels.
Definition:
labelList.H:56
Foam::fftRenumberRecurse
void fftRenumberRecurse(List< complex > &data, List< complex > &renumData, const labelList &nn, label nnprod, label ii, label l1, label l2)
Definition:
fftRenumber.C:36
Foam
Namespace for OpenFOAM.
Definition:
atmBoundaryLayer.H:213
complex.H
src
randomProcesses
fft
fftRenumber.H
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