rotatingMotion.C

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License
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#include "rotatingMotion.H"
#include "addToRunTimeSelectionTable.H"
#include "mathematicalConstants.H"

using namespace Foam::constant::mathematical;

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

namespace Foam
{
namespace solidBodyMotionFunctions
{
    defineTypeNameAndDebug(rotatingMotion, 0);
    addToRunTimeSelectionTable
    (
        solidBodyMotionFunction,
        rotatingMotion,
        dictionary
    );
}
}


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

Foam::solidBodyMotionFunctions::rotatingMotion::rotatingMotion
(
    const dictionary& SBMFCoeffs,
    const Time& runTime
)
:
    solidBodyMotionFunction(SBMFCoeffs, runTime),
    origin_(SBMFCoeffs_.lookup("origin")),
    axis_(SBMFCoeffs_.lookup("axis")),
    omega_(Function1<scalar>::New("omega", SBMFCoeffs_))
{}


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

Foam::solidBodyMotionFunctions::rotatingMotion::~rotatingMotion()
{}


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

Foam::septernion
Foam::solidBodyMotionFunctions::rotatingMotion::transformation() const
{
    scalar t = time_.value();

    // Rotation around axis
    scalar angle = omega_->integral(0, t);

    quaternion R(axis_, angle);
    septernion TR(septernion(-origin_)*R*septernion(origin_));

    DebugInFunction << "Time = " << t << " transformation: " << TR << endl;

    return TR;
}


bool Foam::solidBodyMotionFunctions::rotatingMotion::read
(
    const dictionary& SBMFCoeffs
)
{
    solidBodyMotionFunction::read(SBMFCoeffs);

    omega_.reset
    (
        Function1<scalar>::New("omega", SBMFCoeffs_).ptr()
    );

    return true;
}


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