midPoint.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.

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    You should have received a copy of the GNU General Public License
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Class
    Foam::midPoint

Description
    Mid-point interpolation (weighting factors = 0.5) scheme class.

SourceFiles
    midPoint.C

\*---------------------------------------------------------------------------*/

#ifndef midPoint_H
#define midPoint_H

#include "surfaceInterpolationScheme.H"
#include "volFields.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                           Class midPoint Declaration
\*---------------------------------------------------------------------------*/

template<class Type>
class midPoint
:
    public surfaceInterpolationScheme<Type>
{

public:

    //- Runtime type information
    TypeName("midPoint");


    // Constructors

        //- Construct from mesh
        midPoint(const fvMesh& mesh)
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}

        //- Construct from Istream
        midPoint(const fvMesh& mesh, Istream&)
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}

        //- Construct from faceFlux and Istream
        midPoint
        (
            const fvMesh& mesh,
            const surfaceScalarField&,
            Istream&
        )
        :
            surfaceInterpolationScheme<Type>(mesh)
        {}


    // Member Functions

        //- Return the interpolation weighting factors
        tmp<surfaceScalarField> weights
        (
            const GeometricField<Type, fvPatchField, volMesh>&
        ) const
        {
            tmp<surfaceScalarField> taw
            (
                surfaceScalarField::New
                (
                    "midPointWeights",
                    this->mesh(),
                    dimensionedScalar(dimless, 0.5)
                )
            );

            surfaceScalarField::Boundary& awBf =
                taw.ref().boundaryFieldRef();

            forAll(awBf, patchi)
            {
                if (!awBf[patchi].coupled())
                {
                    awBf[patchi] = 1.0;
                }
            }

            return taw;
        }


    // Member Operators

        //- Disallow default bitwise assignment
        void operator=(const midPoint&) = delete;
};


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

} // End namespace Foam

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

#endif

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