specifiedRotation.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2021-2024 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
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Class
    Foam::coordinateRotations::specified
 
Description
    An user-specified coordinateRotation, primarily to be used internally
    within coding when the rotation matrix is already known but
    needs to be wrapped as a coordinateRotation for use in a coordinate
    system.
 
Note
    Currently no runtime selection mechanism, since specifying a
    rotation matrix via a dictionary can be fragile due to rounding
    factors and uncertainty if a forward or reverse rotation matrix
    is intended.
 
SourceFiles
    specifiedRotation.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_coordinateRotations_specified_H
#define Foam_coordinateRotations_specified_H
 
#include "coordinateRotation.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace coordinateRotations
{
 
/*---------------------------------------------------------------------------*\
               Class coordinateRotations::specified Declaration
\*---------------------------------------------------------------------------*/
 
class specified
:
    public coordinateRotation
{
    // Private Data
 
        //- The rotation matrix
        tensor Rmatrix_;
 
 
public:
 
    //- Runtime type information
    TypeNameNoDebug("specified");
 
 
    // Constructors
 
        //- Default construct - an identity matrix
        specified();
 
        //- Construct from transformation matrix
        explicit specified(const tensor& rot);
 
        //- Construct from dictionary
        explicit specified(const dictionary& unused);
 
        //- Return clone
        autoPtr<coordinateRotation> clone() const
        {
            return coordinateRotation::Clone(*this);
        }
 
 
    //- Destructor
    virtual ~specified() = default;
 
 
    // Member Functions
 
        //- Reset specification
        virtual void clear();
 
        //- Return the rotation tensor
        virtual tensor R() const;
 
        //- Write information
        virtual void write(Ostream& os) const;
 
        //- Write dictionary entry
        virtual void writeEntry(const word& keyword, Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace coordinateRotations
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //