inverseDistancePatchToPatch.H

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Class
    Foam::patchToPatches::inverseDistance
 
Description
    Class to generate patchToPatch coupling geometry. Couples a face to the
    opposite face onto which its centre-normal ray projects, plus the immediate
    neighbours to that opposite face. The proportion of contribution from the
    different faces is calculated using inverse distance weighting.
 
SourceFiles
    inverseDistance.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef inverseDistancePatchToPatch_H
#define inverseDistancePatchToPatch_H
 
#include "nearbyPatchToPatch.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace patchToPatches
{
 
/*---------------------------------------------------------------------------*\
                          Class inverseDistance Declaration
\*---------------------------------------------------------------------------*/
 
class inverseDistance
:
    public nearby
{
    // Private Member Data
 
        //- For each source face, the coupled target weights
        List<DynamicList<scalar>> srcWeights_;
 
        //- For each target face, the coupled source weights
        List<DynamicList<scalar>> tgtWeights_;
 
 
    // Private Static Member Functions
 
        //- Return whether a ray starting at point `p` with direction `r` hits
        //  a face `f` with points `ps`
        static bool rayHitsFace
        (
            const point& p,
            const vector& r,
            const face& f,
            const pointField& ps
        );
 
 
    // Private Member Functions
 
        //- Initialisation
        virtual void initialise
        (
            const primitiveOldTimePatch& srcPatch,
            const vectorField& srcPointNormals,
            const vectorField& srcPointNormals0,
            const primitiveOldTimePatch& tgtPatch
        );
 
        //- Convert the addressing generated by the base class into weights
        //  (and addressing) appropriate for inverse distance interpolation
        void generateWeights
        (
            const primitiveOldTimePatch& srcPatch,
            const primitiveOldTimePatch& tgtPatch
        );
 
        //- Finalise the intersection locally. Trims the local target patch
        //  so that only parts that actually intersect the source remain.
        //  Returns new-to-old map for trimming target-associated data.
        virtual labelList finaliseLocal
        (
            const primitiveOldTimePatch& srcPatch,
            const vectorField& srcPointNormals,
            const vectorField& srcPointNormals0,
            const primitiveOldTimePatch& tgtPatch
        );
 
        //- Send data that resulted from an intersection between the source
        //  patch and a distributed source-local-target patch back to the
        //  original target processes
        virtual void rDistributeTgt(const primitiveOldTimePatch& tgtPatch);
 
        //- Finalise the intersection
        virtual label finalise
        (
            const primitiveOldTimePatch& srcPatch,
            const vectorField& srcPointNormals,
            const vectorField& srcPointNormals0,
            const primitiveOldTimePatch& tgtPatch,
            const transformer& tgtToSrc
        );
 
        //- For each source face, the coupled target weights
        virtual tmpNrc<List<DynamicList<scalar>>> srcWeights() const;
 
        //- For each target face, the coupled source weights
        virtual tmpNrc<List<DynamicList<scalar>>> tgtWeights() const;
 
 
public:
 
    //- Runtime type information
    TypeName("inverseDistance");
 
 
    // Constructors
 
        //- Construct from components
        inverseDistance(const bool reverse);
 
 
    //- Destructor
    ~inverseDistance();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace patchToPatches
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //