Vector2DI.H

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    Copyright (C) 2018-2021 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Cmpt>
inline Foam::Vector2D<Cmpt>::Vector2D(const Foam::zero)
:
    Vector2D::vsType(Zero)
{}
 
 
template<class Cmpt>
inline Foam::Vector2D<Cmpt>::Vector2D
(
    const VectorSpace<Vector2D<Cmpt>, Cmpt, 2>& vs
)
:
    Vector2D::vsType(vs)
{}
 
 
template<class Cmpt>
inline Foam::Vector2D<Cmpt>::Vector2D(const Cmpt& vx, const Cmpt& vy)
{
    this->v_[X] = vx;
    this->v_[Y] = vy;
}
 
 
template<class Cmpt>
inline Foam::Vector2D<Cmpt>::Vector2D(Istream& is)
:
    Vector2D::vsType(is)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Cmpt>
inline const Cmpt& Foam::Vector2D<Cmpt>::x() const
{
    return this->v_[X];
}
 
 
template<class Cmpt>
inline const Cmpt& Foam::Vector2D<Cmpt>::y() const
{
    return this->v_[Y];
}
 
 
template<class Cmpt>
inline Cmpt& Foam::Vector2D<Cmpt>::x()
{
    return this->v_[X];
}
 
 
template<class Cmpt>
inline Cmpt& Foam::Vector2D<Cmpt>::y()
{
    return this->v_[Y];
}
 
 
template<class Cmpt>
inline Foam::Vector2D<Cmpt>& Foam::Vector2D<Cmpt>::normalise()
{
    const scalar s(Foam::mag(*this));
 
    if (s < ROOTVSMALL)
    {
        *this = Zero;
    }
    else
    {
        *this /= s;
    }
 
    return *this;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * Global Operators  * * * * * * * * * * * * * //
 
template<class Cmpt>
inline typename innerProduct<Vector2D<Cmpt>, Vector2D<Cmpt>>::type
operator&(const Vector2D<Cmpt>& v1, const Vector2D<Cmpt>& v2)
{
    return Cmpt(v1.x()*v2.x() + v1.y()*v2.y());
}
 
 
template<class Cmpt>
inline scalar Vector2D<Cmpt>::perp(const Vector2D<Cmpt>& b) const
{
    return x()*b.y() - y()*b.x();
}
 
 
template<class Cmpt>
inline bool Vector2D<Cmpt>::isClose
(
    const Vector2D<Cmpt>& b,
    const scalar tol
) const
{
    return (mag(x() - b.x()) < tol && mag(y() - b.y()) < tol);
}
 
 
template<class Cmpt>
inline Vector2D<Cmpt> operator*(const Cmpt& s, const Vector2D<Cmpt>& v)
{
    return Vector2D<Cmpt>(s*v.x(), s*v.y());
}
 
 
template<class Cmpt>
inline Vector2D<Cmpt> operator*(const Vector2D<Cmpt>& v, const Cmpt& s)
{
    return s*v;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //