faceBox.H

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    Copyright (C) 2017-2023 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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Class
    Foam::processorLODs::faceBox

Description
    Creates the parallel distribution map by describing the source and target
    objects using box shapes.

    A single box is created for the source object, which is then split using
    2x2x2 refinement based on the number of remote target objects that overlap.
    The refinement is local between communicating processor pairs, where the
    refinement continues until a threshold number of remote target objects per
    source box is achieved.

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

#ifndef Foam_processorLODs_faceBox
#define Foam_processorLODs_faceBox

#include "box.H"

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

namespace Foam
{
namespace processorLODs
{

/*---------------------------------------------------------------------------*\
                           Class faceBox Declaration
\*---------------------------------------------------------------------------*/

class faceBox
:
    public processorLODs::box
{
protected:

    // Protected Data

        //- Reference to the source face list
        const faceList& srcFaces_;

        //- Reference to the target face list
        const faceList& tgtFaces_;


    // Protected Member Functions

        //- The local boundBox associated with given source object
        virtual treeBoundBox calcSrcBox(const label srcObji) const;

        //- The local boundBox associated with given target object
        virtual treeBoundBox calcTgtBox(const label tgtObji) const;


public:

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

    // Constructors

        //- Construct from list of points/faces for source and target
        faceBox
        (
            const faceList& srcFaces,
            const UList<point>& srcPoints,
            const faceList& tgtFaces,
            const UList<point>& tgtPoints,
            const label maxObjectsPerLeaf,
            const label nObjectsOfType,
            const label nRefineIterMax = 100
        );


    //- Destructor
    virtual ~faceBox() = default;


    // Member Functions

        //- Return the parallel distribution map
        //- (usually linear construct order)
        virtual autoPtr<mapDistribute> map
        (
            const mapDistributeBase::layoutTypes constructLayout
        );
};


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

} // End namespace processorLODs
} // End namespace Foam

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

#endif

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