lagrangianFieldDecomposer.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2017 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.

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Description
    Lagrangian field decomposer.

\*---------------------------------------------------------------------------*/

#include "lagrangianFieldDecomposer.H"

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

Foam::lagrangianFieldDecomposer::lagrangianFieldDecomposer
(
    const polyMesh& mesh,
    const polyMesh& procMesh,
    const labelList& faceProcAddressing,
    const labelList& cellProcAddressing,
    const word& cloudName,
    const Cloud<indexedParticle>& lagrangianPositions,
    const List<SLList<indexedParticle*>*>& cellParticles
)
:
    procMesh_(procMesh),
    positions_(procMesh, Foam::zero{}, cloudName),  // Empty cloud
    particleIndices_(lagrangianPositions.size())
{
    label pi = 0;

    labelList decodedProcFaceAddressing(faceProcAddressing.size());

    forAll(faceProcAddressing, i)
    {
        decodedProcFaceAddressing[i] = mag(faceProcAddressing[i]) - 1;
    }

    forAll(cellProcAddressing, procCelli)
    {
        label celli = cellProcAddressing[procCelli];

        if (cellParticles[celli])
        {
            SLList<indexedParticle*>& particlePtrs = *cellParticles[celli];

            forAllConstIters(particlePtrs, iter)
            {
                const indexedParticle& ppi = *iter();
                particleIndices_[pi++] = ppi.index();

                const label mappedTetFace =
                    decodedProcFaceAddressing.find(ppi.tetFace());

                if (mappedTetFace == -1)
                {
                    FatalErrorInFunction
                        << "Face lookup failure." << nl
                        << abort(FatalError);
                }

                positions_.append
                (
                    new passiveParticle
                    (
                        procMesh,
                        ppi.coordinates(),
                        procCelli,
                        mappedTetFace,
                        ppi.procTetPt(procMesh, procCelli, mappedTetFace)
                    )
                );
            }
        }
    }

    particleIndices_.resize(pi);

    IOPosition<Cloud<passiveParticle>>(positions_).write();
}


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