randomRenumber.C

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    Copyright (C) 2011-2012 OpenFOAM Foundation
    Copyright (C) 2021-2022 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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#include "randomRenumber.H"
#include "Random.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
    defineTypeNameAndDebug(randomRenumber, 0);

    addToRunTimeSelectionTable
    (
        renumberMethod,
        randomRenumber,
        dictionary
    );
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::randomRenumber::randomRenumber(const dictionary& dict)
:
    renumberMethod(dict)
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

Foam::labelList Foam::randomRenumber::renumber
(
    const pointField& points
) const
{
    Random rndGen(0);

    labelList newToOld(identity(points.size()));

    for (label iter = 0; iter < 10; iter++)
    {
        forAll(newToOld, i)
        {
            label j = rndGen.position<label>(0, newToOld.size()-1);
            std::swap(newToOld[i], newToOld[j]);
        }
    }
    return newToOld;
}


Foam::labelList Foam::randomRenumber::renumber
(
    const polyMesh& mesh,
    const pointField& points
) const
{
    return renumber(points);
}


Foam::labelList Foam::randomRenumber::renumber
(
    const CompactListList<label>& cellCells,
    const pointField& points
) const
{
    return renumber(points);
}


Foam::labelList Foam::randomRenumber::renumber
(
    const labelListList& cellCells,
    const pointField& points
) const
{
    return renumber(points);
}


// ************************************************************************* //