layerInfo.H

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License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
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    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::layerInfo

Description
    Class to be used with FaceCellWave which enumerates layers of cells

SourceFiles
    layerInfoI.H

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

#ifndef layerInfo_H
#define layerInfo_H

#include "pointField.H"
#include "face.H"

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

namespace Foam
{

// Forward declaration of classes
class polyPatch;
class polyMesh;
class transformer;

// Forward declaration of friend functions and operators
class layerInfo;
Ostream& operator<<(Ostream&, const layerInfo&);
Istream& operator>>(Istream&, layerInfo&);

/*---------------------------------------------------------------------------*\
                          Class layerInfo Declaration
\*---------------------------------------------------------------------------*/

class layerInfo
{
    // Private Data

        //- Layer index
        label layer_;

        //- Direction of propagation (+1 or -1) relative to the face normal.
        //  Only valid when on a face. Takes a value of 0 when in a cell.
        label direction_;

        //- The previous face index. Only valid when in a cell. Takes a value
        //  of -1 if on a face.
        label prevFace_;


    // Private Member Functions

        //- Generate an error in the event that opposing waves collided
        void collide() const;


public:

    // Constructors

        //- Construct null
        inline layerInfo();

        //- Construct given the face layer index and direction
        inline layerInfo(const label faceLayer, const label direction);


    // Member Functions

        // Access

            //- Return the face layer index
            inline label faceLayer() const;

            //- Return the face layer index
            inline label cellLayer() const;


        // Needed by FaceCellWave

            //- Check whether the layerInfo has been changed at all or still
            //  contains original (invalid) value.
            template<class TrackingData>
            inline bool valid(TrackingData& td) const;

            //- Check for identical geometrical data. Used for checking
            //  consistency across cyclics.
            template<class TrackingData>
            inline bool sameGeometry
            (
                const polyMesh&,
                const layerInfo&,
                const scalar,
                TrackingData& td
            ) const;

            //- Transform across an interface
            template<class TrackingData>
            inline void transform
            (
                const polyPatch& patch,
                const label patchFacei,
                const transformer& transform,
                TrackingData& td
            );

            //- Influence of neighbouring face
            template<class TrackingData>
            inline bool updateCell
            (
                const polyMesh&,
                const label thisCelli,
                const label neighbourFacei,
                const layerInfo& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );

            //- Influence of neighbouring cell
            template<class TrackingData>
            inline bool updateFace
            (
                const polyMesh&,
                const label thisFacei,
                const label neighbourCelli,
                const layerInfo& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );

            //- Influence of different value on same face
            template<class TrackingData>
            inline bool updateFace
            (
                const polyMesh&,
                const label thisFacei,
                const layerInfo& neighbourInfo,
                const scalar tol,
                TrackingData& td
            );

            //- Test equality
            template<class TrackingData>
            inline bool equal
            (
                const layerInfo&,
                TrackingData& td
            ) const;


    // Member Operators

        inline bool operator==(const layerInfo&) const;
        inline bool operator!=(const layerInfo&) const;


    // IOstream Operators

        friend Ostream& operator<<(Ostream&, const layerInfo&);
        friend Istream& operator>>(Istream&, layerInfo&);
};

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

} // End namespace Foam

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

#include "layerInfoI.H"

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

#endif

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