/data/refman/pasoursint/CMSSW_5_2_7_hltpatch1/src/RecoJets/FFTJetAlgorithms/interface/EtaAndPtDependentPeakSelector.h

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#ifndef RecoJets_FFTJetAlgorithm_EtaAndPtDependentPeakSelector_h
#define RecoJets_FFTJetAlgorithm_EtaAndPtDependentPeakSelector_h

#include "fftjet/Peak.hh"
#include "fftjet/SimpleFunctors.hh"
#include "fftjet/LinearInterpolator2d.hh"

#include "RecoJets/FFTJetAlgorithms/interface/LookupTable2d.h"

namespace fftjetcms {
    //
    // Interpolation is linear in eta, log(scale), and log(magnitude).
    // It is assumed that the first variable in the table is eta and
    // the second is log(scale). It is assumed that the table value
    // is log(magnitude).
    //
    class EtaAndPtDependentPeakSelector :
        public fftjet::Functor1<bool,fftjet::Peak>
    {
    public:
        explicit EtaAndPtDependentPeakSelector(std::istream& in);
        ~EtaAndPtDependentPeakSelector();

        bool operator()(const fftjet::Peak& peak) const;
        inline bool isValid() const {return ip_;}

    private:
        EtaAndPtDependentPeakSelector();
        EtaAndPtDependentPeakSelector(const EtaAndPtDependentPeakSelector&);
        EtaAndPtDependentPeakSelector& operator=(
            const EtaAndPtDependentPeakSelector&);

        fftjet::LinearInterpolator2d* ip_;
    };

    // Similar class which does not perform linear interpolation but
    // simply looks up in a histogram-like table
    class EtaAndPtLookupPeakSelector :
        public fftjet::Functor1<bool,fftjet::Peak>
    {
    public:
        EtaAndPtLookupPeakSelector(unsigned nx, double xmin, double xmax,
                                   unsigned ny, double ymin, double ymax,
                                   const std::vector<double>& data);

        bool operator()(const fftjet::Peak& peak) const;

    private:
        LookupTable2d lookupTable_;
    };
}

#endif // RecoJets_FFTJetAlgorithm_EtaAndPtDependentPeakSelector_h