Lau2DHistDPPdf.hh

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/*
Copyright 2004 University of Warwick

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

/*
Laura++ package authors:
John Back
Paul Harrison
Thomas Latham
*/

#ifndef LAU_2DHIST_DP_PDF
#define LAU_2DHIST_DP_PDF

#include "Lau2DAbsHistDPPdf.hh"

class TH2;
class LauKinematics;
class LauVetoes;

class Lau2DHistDPPdf : public Lau2DAbsHistDPPdf {

        public:

                Lau2DHistDPPdf(const TH2* hist, LauKinematics* kinematics, const LauVetoes* vetoes,
                                Bool_t useInterpolation = kTRUE, Bool_t fluctuateBins = kFALSE,
                                Bool_t useUpperHalfOnly = kFALSE, Bool_t squareDP = kFALSE);

                virtual ~Lau2DHistDPPdf();


                Double_t getHistNorm() const {return norm_;}


                Double_t interpolateXY(Double_t x, Double_t y) const;


                Double_t interpolateXYNorm(Double_t x, Double_t y) const;

        protected:

                Double_t getBinHistValue(Int_t xBinNo, Int_t yBinNo) const;

                void calcHistNorm();
                
                void checkNormalisation();

        private:
                Lau2DHistDPPdf( const Lau2DHistDPPdf& rhs );

                Lau2DHistDPPdf& operator=(const Lau2DHistDPPdf& rhs);

                TH2* hist_;
        
                Double_t minX_;
                Double_t maxX_;
                Double_t minY_;
                Double_t maxY_;
                Double_t rangeX_;
                Double_t rangeY_;
                
                Double_t binXWidth_;
                Double_t binYWidth_; 
                Double_t invBinXWidth_;
                Double_t invBinYWidth_;

                Double_t maxHeight_;
                
                Int_t nBinsX_;
                Int_t nBinsY_;

                Double_t norm_;

                Bool_t useInterpolation_;
                
                ClassDef(Lau2DHistDPPdf,0) // 2D Histogram utility class for DP analyses
};

#endif