Vector2D.H

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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
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::Vector2D
 
Description
    Templated 2D Vector derived from VectorSpace adding construction from
    2 components, element access using x() and y() member functions and
    the inner-product (dot-product).
 
SourceFiles
    Vector2DI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef Vector2D_H
#define Vector2D_H
 
#include "VectorSpace.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                          Class Vector2D Declaration
\*---------------------------------------------------------------------------*/
 
template<class Cmpt>
class Vector2D
:
    public VectorSpace<Vector2D<Cmpt>, Cmpt, 2>
{
 
public:
 
    //- Equivalent type of labels used for valid component indexing
    typedef Vector2D<label> labelType;
 
 
    // Member constants
 
        //- Rank of Vector2D is 1
        static const direction rank = 1;
 
 
    //- Component labeling enumeration
    enum components { X, Y };
 
 
    // Constructors
 
        //- Construct null
        inline Vector2D();
 
        //- Construct initialised to zero
        inline Vector2D(const Foam::zero);
 
        //- Construct given VectorSpace
        inline Vector2D(const VectorSpace<Vector2D<Cmpt>, Cmpt, 2>&);
 
        //- Construct given two components
        inline Vector2D(const Cmpt& vx, const Cmpt& vy);
 
        //- Construct from Istream
        inline Vector2D(Istream&);
 
 
    // Member Functions
 
        // Access
 
            inline const Cmpt& x() const;
            inline const Cmpt& y() const;
 
            inline Cmpt& x();
            inline Cmpt& y();
 
 
        // Operators
 
            //- Perp dot product (dot product with perpendicular vector)
            inline scalar perp(const Vector2D<Cmpt>& b) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
// Include inline implementations
#include "Vector2DI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //