linearMotion.C

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#include "linearMotion.H"
#include "addToRunTimeSelectionTable.H"

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

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


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

Foam::solidBodyMotionFunctions::linearMotion::linearMotion
(
    const dictionary& SBMFCoeffs,
    const Time& runTime
)
:
    solidBodyMotionFunction(SBMFCoeffs, runTime)
{
    read(SBMFCoeffs);
}


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

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


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

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

    // Translation of centre of gravity with constant velocity
    const vector displacement = velocity_*t;

    quaternion R(1);
    septernion TR(septernion(-displacement)*R);

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

    return TR;
}


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

    SBMFCoeffs_.lookup("velocity") >> velocity_;

    return true;
}


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