cylinderToCell.C

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License
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    the Free Software Foundation, either version 3 of the License, or
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\*---------------------------------------------------------------------------*/

#include "cylinderToCell.H"
#include "polyMesh.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
    defineTypeNameAndDebug(cylinderToCell, 0);
    addToRunTimeSelectionTable(topoSetSource, cylinderToCell, word);
}


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

void Foam::cylinderToCell::combine(topoSet& set, const bool add) const
{
    const vector axis = point2_ - point1_;
    const scalar rad2 = sqr(radius_);
    const scalar magAxis2 = magSqr(axis);

    const pointField& ctrs = mesh_.cellCentres();

    forAll(ctrs, celli)
    {
        vector d = ctrs[celli] - point1_;
        scalar magD = d & axis;

        if ((magD > 0) && (magD < magAxis2))
        {
            scalar d2 = (d & d) - sqr(magD)/magAxis2;
            if (d2 < rad2)
            {
                addOrDelete(set, celli, add);
            }
        }
    }
}


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

Foam::cylinderToCell::cylinderToCell
(
    const polyMesh& mesh,
    const vector& point1,
    const vector& point2,
    const scalar radius
)
:
    topoSetSource(mesh),
    point1_(point1),
    point2_(point2),
    radius_(radius)
{}


Foam::cylinderToCell::cylinderToCell
(
    const polyMesh& mesh,
    const dictionary& dict
)
:
    topoSetSource(mesh),
    point1_(dict.lookupBackwardsCompatible<point>({"point1", "p1"})),
    point2_(dict.lookupBackwardsCompatible<point>({"point2", "p2"})),
    radius_(dict.lookup<scalar>("radius"))
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::cylinderToCell::~cylinderToCell()
{}


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

void Foam::cylinderToCell::applyToSet
(
    const topoSetSource::setAction action,
    topoSet& set
) const
{
    if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
    {
        Info<< "    Adding cells with centre within cylinder, with point1 = "
            << point1_ << ", point2 = " << point2_ << " and radius = "
            << radius_ << endl;

        combine(set, true);
    }
    else if (action == topoSetSource::DELETE)
    {
        Info<< "    Removing cells with centre within cylinder, with point1 = "
            << point1_ << ", point2 = " << point2_ << " and radius = "
            << radius_ << endl;

        combine(set, false);
    }
}


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