uniform.C

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    Copyright (C) 2012-2015 OpenFOAM Foundation
    Copyright (C) 2022 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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#include "uniform.H"
#include "addToRunTimeSelectionTable.H"
#include "volumeType.H"

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

namespace Foam
{

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

defineTypeNameAndDebug(uniform, 0);
addToRunTimeSelectionTable(cellSizeFunction, uniform, dictionary);

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

uniform::uniform
(
    const dictionary& initialPointsDict,
    const searchableSurface& surface,
    const scalar& defaultCellSize,
    const labelList regionIndices
)
:
    cellSizeFunction
    (
        typeName,
        initialPointsDict,
        surface,
        defaultCellSize,
        regionIndices
    )
{}


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

bool uniform::sizeLocations
(
    const pointIndexHit& hitPt,
    const vector& n,
    pointField& shapePts,
    scalarField& shapeSizes
) const
{
    shapePts.setSize(0);
    shapeSizes.setSize(0);

    return true;
}


bool uniform::cellSize
(
    const point& pt,
    scalar& size
) const
{
    List<pointIndexHit> hits;

    surface_.findNearest
    (
        pointField(1, pt),
        scalarField(1, sqr(GREAT)),
        regionIndices_,
        hits
    );

    const pointIndexHit& hitInfo = hits[0];

    if (hitInfo.hit())
    {
        const point& hitPt = hitInfo.point();
        const label index = hitInfo.index();

        if (sideMode_ == rmBothsides)
        {
            size = surfaceCellSizeFunction_().interpolate(hitPt, index);

            return true;
        }

        size = 0;

        List<pointIndexHit> closeToSurfaceHits;

        surface_.findNearest
        (
            pointField(1, pt),
            scalarField(1, sqr(snapToSurfaceTol_)),
            regionIndices_,
            closeToSurfaceHits
        );

        const pointIndexHit& closeToSurface = closeToSurfaceHits[0];

        // If the nearest point is essentially on the surface, do not do a
        // getVolumeType calculation, as it will be prone to error.
        if (closeToSurface.hit())
        {
            size = surfaceCellSizeFunction_().interpolate(hitPt, index);

            return true;
        }

        pointField ptF(1, pt);
        List<volumeType> vTL(1);

        surface_.getVolumeType(ptF, vTL);

        bool functionApplied = false;

        if
        (
            sideMode_ == smInside
         && vTL[0] == volumeType::INSIDE
        )
        {
            size = surfaceCellSizeFunction_().interpolate(hitPt, index);

            functionApplied = true;
        }
        else if
        (
            sideMode_ == smOutside
         && vTL[0] == volumeType::OUTSIDE
        )
        {
            size = surfaceCellSizeFunction_().interpolate(hitPt, index);

            functionApplied = true;
        }

        return functionApplied;
    }

    return false;
}


bool uniform::setCellSize
(
    const pointField& pts
)
{
//    labelHashSet surfaceAlreadyHit(cellSize_.size());
//
//    forAll(pts, ptI)
//    {
//        const Foam::point& pt = pts[ptI];
//
//        List<pointIndexHit> hits;
//
//        surface_.findNearest
//        (
//            pointField(1, pt),
//            scalarField(1, sqr(GREAT)),
//            hits
//        );
//
//        if (hits[0].hit() && !surfaceAlreadyHit.found(hits[0].index()))
//        {
//            surfaceCellSizeFunction_().refineCellSize(hits[0].index());
//
//            surfaceAlreadyHit.insert(hits[0].index());
//        }
//    }

    return true;
}


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

} // End namespace Foam

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