PndEmcShapingNoiseAdder.h

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//#pragma once
#ifndef PNDEMCSHAPINGNOISEADDER_H_
#define PNDEMCSHAPINGNOISEADDER_H_

#include "PndEmcAbsWaveformModifier.h"

class PndEmcWaveform;
class PndEmcAbsWaveformSimulator;

class PndEmcShapingNoiseAdder : public PndEmcAbsWaveformModifier 
{
        public:
                PndEmcShapingNoiseAdder();
                PndEmcShapingNoiseAdder(Double_t fShapingTime, Double_t sampleRate, Double_t noiseWidth, Double_t inputScale);

                virtual void  Modify(PndEmcWaveform* wf);

        protected:

        private:
                Double_t fShapingTime;
                Double_t fNoiseWidth;
                Double_t fInputScale;

                Double_t fSingleNoiseWidth;


                class MA {                      // moving Average Buffer
                    private:
                        std::vector<Double_t> buffer;
                        UInt_t bpointer;
                        Double_t sum;

                    public:
                        MA(UInt_t size): buffer(size, 0.0), bpointer(0), sum(0) {};

                        Double_t operator() (Double_t xN) {
                            sum += xN - buffer[bpointer];
                            buffer[bpointer] = xN;
                            bpointer++;
                            bpointer %= buffer.size();

                            return sum/buffer.size();
                        }
                        UInt_t GetSize() { return buffer.size(); };
                } fMA_buffer;

                ClassDef(PndEmcShapingNoiseAdder, 0)
};

#endif