EulerCoordinateRotation.C

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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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#include "EulerCoordinateRotation.H"
 
#include "mathematicalConstants.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(EulerCoordinateRotation, 0);
    addToRunTimeSelectionTable
    (
        coordinateRotation,
        EulerCoordinateRotation,
        dictionary
    );
    addToRunTimeSelectionTable
    (
        coordinateRotation,
        EulerCoordinateRotation,
        points
    );
}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::EulerCoordinateRotation::calcTransform
(
    const scalar phiAngle,
    const scalar thetaAngle,
    const scalar psiAngle,
    const bool inDegrees
)
{
    scalar phi   = phiAngle;
    scalar theta = thetaAngle;
    scalar psi   = psiAngle;
 
    if (inDegrees)
    {
        phi   *= constant::mathematical::pi/180.0;
        theta *= constant::mathematical::pi/180.0;
        psi   *= constant::mathematical::pi/180.0;
    }
 
    R_ =
    (
        tensor
        (
            cos(phi)*cos(psi) - sin(phi)*sin(psi)*cos(theta),
            -sin(phi)*cos(psi)*cos(theta) - cos(phi)*sin(psi),
            sin(phi)*sin(theta),
 
            cos(phi)*sin(psi)*cos(theta) + sin(phi)*cos(psi),
            cos(phi)*cos(psi)*cos(theta) - sin(phi)*sin(psi),
            -cos(phi)*sin(theta),
 
            sin(psi)*sin(theta),
            cos(psi)*sin(theta),
            cos(theta)
        )
    );
 
    Rtr_ = R_.T();
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::EulerCoordinateRotation::EulerCoordinateRotation
(
    const dictionary& dict
)
:
    R_(sphericalTensor::I),
    Rtr_(R_)
{
    vector rotation(dict.lookup("rotation"));
 
    calcTransform
    (
        rotation.component(vector::X),
        rotation.component(vector::Y),
        rotation.component(vector::Z),
        dict.lookupOrDefault("degrees", true)
    );
}
 
 
Foam::EulerCoordinateRotation::EulerCoordinateRotation
(
    const dictionary& dict,
    const UList<vector>& points
)
:
    EulerCoordinateRotation(dict)
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
Foam::vector Foam::EulerCoordinateRotation::transform(const vector& v) const
{
    return (R_ & v);
}
 
 
Foam::vector Foam::EulerCoordinateRotation::invTransform(const vector& v) const
{
    return (Rtr_ & v);
}
 
 
Foam::tmp<Foam::vectorField> Foam::EulerCoordinateRotation::transform
(
    const vectorField& vf
) const
{
    NotImplemented;
    return tmp<vectorField>(nullptr);
}
 
 
Foam::tmp<Foam::vectorField> Foam::EulerCoordinateRotation::invTransform
(
    const vectorField& vf
) const
{
    NotImplemented;
    return tmp<vectorField>(nullptr);
}
 
 
Foam::tmp<Foam::tensorField> Foam::EulerCoordinateRotation::transform
(
    const tensorField& volSymmTensorField
) const
{
     NotImplemented;
    return tmp<tensorField>(nullptr);
}
 
 
Foam::tensor Foam::EulerCoordinateRotation::transform
(
    const vector& p,
    const tensor& t
) const
{
    return (R_ & t & Rtr_);
}
 
 
Foam::tmp<Foam::symmTensorField> Foam::EulerCoordinateRotation::
transformDiagTensor
(
    const vectorField& vf
) const
{
    tmp<symmTensorField> tfld(new symmTensorField(vf.size()));
    symmTensorField& fld = tfld.ref();
 
    forAll(fld, i)
    {
        fld[i] = transformVectorDiagTensor(R_, vf[i]);
    }
    return tfld;
}
 
 
Foam::symmTensor Foam::EulerCoordinateRotation::transformDiagTensor
(
    const vector& p,
    const vector& v
) const
{
    return transformVectorDiagTensor(R_, v);
}
 
 
void Foam::EulerCoordinateRotation::write(Ostream& os) const
{
     writeEntry(os, "e1", e1());
     writeEntry(os, "e2", e2());
     writeEntry(os, "e3", e3());
}
 
 
// ************************************************************************* //