log.C

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License
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#include "log.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace functionObjects
{
    defineTypeNameAndDebug(log, 0);

    addToRunTimeSelectionTable
    (
        functionObject,
        log,
        dictionary
    );
}
}


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

bool Foam::functionObjects::log::calc()
{
    if (foundObject<volScalarField>(fieldName_))
    {
        const volScalarField& x = lookupObject<volScalarField>(fieldName_);

        return store
        (
            resultName_,
            Foam::log(max(x, clip_))
        );
    }
    else
    {
        return false;
    }

    return true;
}


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

Foam::functionObjects::log::log
(
    const word& name,
    const Time& runTime,
    const dictionary& dict
)
:
    fieldExpression(name, runTime, dict)
{
    read(dict);
}


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

Foam::functionObjects::log::~log()
{}


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

bool Foam::functionObjects::log::read(const dictionary& dict)
{
    fieldExpression::read(dict);

    if (resultName_.empty())
    {
        resultName_ = "log(" + fieldName_ + ")";
    }

    clip_ = dict.lookupOrDefault<scalar>("clip", 0);

    return true;
}


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