CuthillMcKeeRenumber.C

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    Copyright (C) 2011-2017 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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#include "CuthillMcKeeRenumber.H"
#include "addToRunTimeSelectionTable.H"
#include "bandCompression.H"
#include "decompositionMethod.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(CuthillMcKeeRenumber, 0);
 
    addToRunTimeSelectionTable
    (
        renumberMethod,
        CuthillMcKeeRenumber,
        dictionary
    );
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::CuthillMcKeeRenumber::CuthillMcKeeRenumber(const dictionary& renumberDict)
:
    renumberMethod(renumberDict),
    reverse_
    (
        renumberDict.optionalSubDict
        (
            typeName + "Coeffs"
        ).getOrDefault("reverse", false)
    )
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::labelList Foam::CuthillMcKeeRenumber::renumber
(
    const polyMesh& mesh,
    const pointField& points
) const
{
    CompactListList<label> cellCells;
    decompositionMethod::calcCellCells
    (
        mesh,
        identity(mesh.nCells()),
        mesh.nCells(),
        false,                      // local only
        cellCells
    );
 
    labelList orderedToOld = bandCompression(cellCells());
 
    if (reverse_)
    {
        reverse(orderedToOld);
    }
 
    return orderedToOld;
}
 
 
Foam::labelList Foam::CuthillMcKeeRenumber::renumber
(
    const labelList& cellCells,
    const labelList& offsets,
    const pointField& cc
) const
{
    labelList orderedToOld = bandCompression(cellCells, offsets);
 
    if (reverse_)
    {
        reverse(orderedToOld);
    }
 
    return orderedToOld;
}
 
 
Foam::labelList Foam::CuthillMcKeeRenumber::renumber
(
    const labelListList& cellCells,
    const pointField& points
) const
{
    labelList orderedToOld = bandCompression(cellCells);
 
    if (reverse_)
    {
        reverse(orderedToOld);
    }
 
    return orderedToOld;
}
 
 
// ************************************************************************* //