PrimitivePatchInterpolation.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
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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    You should have received a copy of the GNU General Public License
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Class
    Foam::PrimitivePatchInterpolation

Description
    Interpolation class within a primitive patch. Allows interpolation from
    points to faces and vice versa

SourceFiles
    PrimitivePatchInterpolation.C

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

#ifndef PrimitivePatchInterpolation_H
#define PrimitivePatchInterpolation_H

#include "scalarList.H"
#include "faceList.H"
#include "Field.H"

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

namespace Foam
{

// Forward Declarations
template<class Patch> class PrimitivePatchInterpolation;

/*---------------------------------------------------------------------------*\
                  Class PrimitivePatchInterpolation Declaration
\*---------------------------------------------------------------------------*/

template<class Patch>
class PrimitivePatchInterpolation
{
    // Private data

        //- Reference to patch
        const Patch& patch_;


    // Demand-driven data

        //- Face-to-point weights
        mutable std::unique_ptr<scalarListList> faceToPointWeightsPtr_;

        //- Face-to-edge weights
        mutable std::unique_ptr<scalarList> faceToEdgeWeightsPtr_;


    // Private Member Functions

        //- No copy construct
        PrimitivePatchInterpolation
        (
            const PrimitivePatchInterpolation&
        ) = delete;

        //- No copy assignment
        void operator=(const PrimitivePatchInterpolation&) = delete;


        //- Face-to-point weights
        const scalarListList& faceToPointWeights() const;

        //- Make face-to-point weights
        void makeFaceToPointWeights() const;

        //- Face-to-edge weights
        const scalarList& faceToEdgeWeights() const;

        //- Make face-to-edge weights
        void makeFaceToEdgeWeights() const;

        //- Clear weights
        void clearWeights();


public:

    // Constructors

        //- Construct from PrimitivePatch
        PrimitivePatchInterpolation(const Patch& p);


    //- Destructor
    ~PrimitivePatchInterpolation() = default;


    // Member Functions

        //- Interpolate from faces to points
        template<class Type>
        tmp<Field<Type>> faceToPointInterpolate
        (
            const Field<Type>& ff
        ) const;

        template<class Type>
        tmp<Field<Type>> faceToPointInterpolate
        (
            const tmp<Field<Type>>& tff
        ) const;

        //- Interpolate from points to faces
        template<class Type>
        tmp<Field<Type>> pointToFaceInterpolate
        (
            const Field<Type>& pf
        ) const;

        template<class Type>
        tmp<Field<Type>> pointToFaceInterpolate
        (
            const tmp<Field<Type>>& tpf
        ) const;

        //- Interpolate from faces to edges
        template<class Type>
        tmp<Field<Type>> faceToEdgeInterpolate
        (
            const Field<Type>& ff
        ) const;

        template<class Type>
        tmp<Field<Type>> faceToEdgeInterpolate
        (
            const tmp<Field<Type>>& tff
        ) const;

        //- Do what is necessary if the mesh has moved
        bool movePoints();
};


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

} // End namespace Foam

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

#ifdef NoRepository
    #include "PrimitivePatchInterpolation.C"
#endif

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

#endif

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