linearInterpolationWeights.H

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License
    This file is part of OpenFOAM.

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Class
    Foam::linearInterpolationWeights

Description

SourceFiles
    linearInterpolationWeights.C

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

#ifndef linearInterpolationWeights_H
#define linearInterpolationWeights_H

#include "interpolationWeights.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                 Class linearInterpolationWeights Declaration
\*---------------------------------------------------------------------------*/

class linearInterpolationWeights
:
    public interpolationWeights
{
    // Private Data

        //- Cached index in samples from previous invocation
        mutable label index_;


public:

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


    // Constructors

        //- Construct from components
        linearInterpolationWeights
        (
            const scalarField& samples
        );


    //- Destructor
    virtual ~linearInterpolationWeights()
    {}


    // Member Functions

        //- Calculate weights and indices to calculate t from samples.
        //  Returns true if indices changed.
        virtual bool valueWeights
        (
            const scalar t,
            labelList& indices,
            scalarField& weights
        ) const;

        //- Calculate weights and indices to calculate integrand of t1..t2
        //  from samples. Returns true if indices changed.
        virtual bool integrationWeights
        (
            scalar t1,
            scalar t2,
            labelList& indices,
            scalarField& weights
        ) const;
};


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

} // End namespace Foam

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

#endif

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