PndEmcPSAParabolic.cxx

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//-----------------------------------------------------------
//
// Description:
//      Pulseshape analysis for ADC waveforms
//      (see header file for more details)
//
//      Dima Melnychuk
//
//-----------------------------------------------------------


// This Class' Header ------------------
#include "PndEmcPSAParabolic.h"
#include "PndEmcWaveform.h"

// Class Member definitions -----------

void PndEmcPSAParabolic::Process(const PndEmcWaveform *waveform, Double_t &amplitude, Double_t &time)
{
        const std::vector<Double_t> signal=waveform->GetSignal();
        FitPeak(signal, amplitude, time);
}

Int_t PndEmcPSAParabolic::Process(const PndEmcWaveform *waveform){
        Process(waveform,lAmplitude,lTime);
        if(lAmplitude > 0){
                return 1;
        }else{
                return 0;
        }
}
void PndEmcPSAParabolic::GetHit(Int_t , Double_t &energy, Double_t &time){ // i //[R.K.03/2017] unused variable(s)
        energy = lAmplitude;
        time = lTime;
}

void PndEmcPSAParabolic::FitPeak(const std::vector<Double_t> & signal, Double_t& ampl, Double_t& pos, Int_t peakBin) const
{
        Int_t waveformLength=signal.size();
        
        ampl=pos=-1.;
        if (peakBin>0 && peakBin<waveformLength-1)
        {
                long theBin(peakBin);
        
                Double_t pValue = signal[peakBin];
                Double_t pPosition = Double_t(peakBin);
        
                Double_t leftValue = signal[theBin-1];
                Double_t rightValue = signal[theBin+1];
                if (leftValue<pValue && rightValue<pValue) {
                        Double_t d = 0.25*(rightValue-leftValue);
                        Double_t b = pValue-0.5*(leftValue+rightValue);
                        pValue += d*d/b;
                        pPosition += d/b;
                }
                ampl=pValue;
                pos=pPosition;
  }
}

void PndEmcPSAParabolic::FitPeak(const std::vector<Double_t> & signal, Double_t& ampl, Double_t& pos, Int_t start, Int_t end) const
{
        std::vector<Double_t>::const_iterator p;
        p=max_element(signal.begin()+start,signal.begin()+end);
        Int_t pPosition = distance(signal.begin(),p);
        FitPeak(signal,ampl,pos,pPosition);
}
  
void PndEmcPSAParabolic::FitPeak(const std::vector<Double_t> & signal, Double_t& ampl, Double_t& pos) const
{
        std::vector<Double_t>::const_iterator p;
        p=max_element(signal.begin(),signal.end());
        Int_t pPosition = distance(signal.begin(),p);
        FitPeak(signal,ampl,pos,pPosition);
}