VectorI.H

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    Copyright (C) 2018-2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
    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.

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

template<class Cmpt>
inline Foam::Vector<Cmpt>::Vector(const Foam::zero)
:
    Vector::vsType(Zero)
{}


template<class Cmpt>
template<class Cmpt2>
inline Foam::Vector<Cmpt>::Vector
(
    const VectorSpace<Vector<Cmpt2>, Cmpt2, 3>& vs
)
:
    Vector::vsType(vs)
{}


template<class Cmpt>
inline Foam::Vector<Cmpt>::Vector
(
    const Cmpt& vx,
    const Cmpt& vy,
    const Cmpt& vz
)
{
    this->v_[X] = vx;
    this->v_[Y] = vy;
    this->v_[Z] = vz;
}


template<class Cmpt>
inline Foam::Vector<Cmpt>::Vector(Istream& is)
:
    Vector::vsType(is)
{}


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

template<class Cmpt>
inline const Cmpt& Foam::Vector<Cmpt>::x() const
{
    return this->v_[X];
}

template<class Cmpt>
inline const Cmpt& Foam::Vector<Cmpt>::y() const
{
    return this->v_[Y];
}

template<class Cmpt>
inline const Cmpt& Foam::Vector<Cmpt>::z() const
{
    return this->v_[Z];
}


template<class Cmpt>
inline Cmpt& Foam::Vector<Cmpt>::x()
{
    return this->v_[X];
}

template<class Cmpt>
inline Cmpt& Foam::Vector<Cmpt>::y()
{
    return this->v_[Y];
}

template<class Cmpt>
inline Cmpt& Foam::Vector<Cmpt>::z()
{
    return this->v_[Z];
}


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

template<class Cmpt>
inline const Foam::Vector<Cmpt>& Foam::Vector<Cmpt>::centre
(
    const Foam::List<Vector<Cmpt>>&
) const
{
    return *this;
}


template<class Cmpt>
inline Foam::Vector<Cmpt>& Foam::Vector<Cmpt>::normalise()
{
    const scalar s(Foam::mag(*this));

    if (s < ROOTVSMALL)
    {
        *this = Zero;
    }
    else
    {
        *this /= s;
    }

    return *this;
}


// * * * * * * * * * * * * * * * Global Operators  * * * * * * * * * * * * * //

namespace Foam
{

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

//- Dummy innerProduct for scalar to allow the construction of vtables for
//  virtual member functions involving the inner-products of fields
//  for which a "NotImplemented" specialization for scalar is provided.
template<class Cmpt>
class innerProduct<Vector<Cmpt>, scalar>
{
public:

    typedef scalar type;
};


template<class Cmpt>
inline typename innerProduct<Vector<Cmpt>, Vector<Cmpt>>::type
operator&(const Vector<Cmpt>& v1, const Vector<Cmpt>& v2)
{
    return Cmpt(v1.x()*v2.x() + v1.y()*v2.y() + v1.z()*v2.z());
}


template<class Cmpt>
inline Vector<Cmpt> operator^(const Vector<Cmpt>& v1, const Vector<Cmpt>& v2)
{
    return Vector<Cmpt>
    (
        (v1.y()*v2.z() - v1.z()*v2.y()),
        (v1.z()*v2.x() - v1.x()*v2.z()),
        (v1.x()*v2.y() - v1.y()*v2.x())
    );
}


template<class Cmpt>
inline Vector<Cmpt> operator*(const Cmpt& s, const Vector<Cmpt>& v)
{
    return Vector<Cmpt>(s*v.x(), s*v.y(), s*v.z());
}


template<class Cmpt>
inline Vector<Cmpt> operator*(const Vector<Cmpt>& v, const Cmpt& s)
{
    return s*v;
}


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

} // End namespace Foam

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