hemisphereToCell.C

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License
    This file is part of OpenFOAM.
 
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#include "hemisphereToCell.H"
#include "polyMesh.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(hemisphereToCell, 0);
    addToRunTimeSelectionTable(topoSetSource, hemisphereToCell, word);
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::hemisphereToCell::combine(topoSet& set, const bool add) const
{
    const pointField& ctrs = mesh_.cellCentres();
 
    const scalar radSquared = radius_*radius_;
    forAll(ctrs, celli)
    {
        const vector offset = ctrs[celli] - centre_;
        const scalar projection = offset & (axis_ - centre_);
 
        if (projection >= 0 && magSqr(offset) <= radSquared)
        {
            addOrDelete(set, celli, add);
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::hemisphereToCell::hemisphereToCell
(
    const polyMesh& mesh,
    const vector& centre,
    const scalar radius,
    const vector& axis
)
:
    topoSetSource(mesh),
    centre_(centre),
    radius_(radius),
    axis_(axis)
{}
 
 
Foam::hemisphereToCell::hemisphereToCell
(
    const polyMesh& mesh,
    const dictionary& dict
)
:
    topoSetSource(mesh),
    centre_(dict.lookup<point>("centre", dimLength)),
    radius_(dict.lookup<scalar>("radius", dimLength)),
    axis_(dict.lookup<vector>("axis", dimless))
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::hemisphereToCell::~hemisphereToCell()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::hemisphereToCell::applyToSet
(
    const topoSetSource::setAction action,
    topoSet& set
) const
{
    if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
    {
        Info<< "    Adding cells with centre within sphere, with centre = "
            << centre_ << " and radius = " << radius_ << endl;
 
        combine(set, true);
    }
    else if (action == topoSetSource::DELETE)
    {
        Info<< "    Removing cells with centre within sphere, with centre = "
            << centre_ << " and radius = " << radius_ << endl;
 
        combine(set, false);
    }
}
 
 
// ************************************************************************* //