CastorPulseContainmentCorrection Class Reference

#include <CastorPulseContainmentCorrection.h>

Public Member Functions
	CastorPulseContainmentCorrection (int num_samples, float fixedphase_ns, float max_fracerror)
	Generate energy correction factors based on a predetermined phase of the hit + time slew. More...
double	fractionContained (double fc_ampl) const
double	getCorrection (double fc_ampl) const

Private Attributes
std::map< double, double >	mCorFactors_

Detailed Description

Amplitude correction for pulse containment in time. Currently only for HPD pulse shape.

Definition at line 12 of file CastorPulseContainmentCorrection.h.

Constructor & Destructor Documentation

CastorPulseContainmentCorrection()

CastorPulseContainmentCorrection::CastorPulseContainmentCorrection	(	int	num_samples,
		float	fixedphase_ns,
		float	max_fracerror
	)

Generate energy correction factors based on a predetermined phase of the hit + time slew.

Definition at line 76 of file CastorPulseContainmentCorrection.cc.

                                                                                        {
  RecoFCcorFactorAlgo<CastorPulseShapes::Shape> corFalgo(num_samples, (double)fixedphase_ns);
 
  // Generate lookup map for the correction function, never exceeding
  // a maximum fractional error for lookups.
  //
  genlkupmap<RecoFCcorFactorAlgo<CastorPulseShapes::Shape> >(1.0,
                                                             5000.0f,        // generation domain
                                                             max_fracerror,  // maximum fractional error
                                                             1.0,            // min_xstep = minimum true fC increment
                                                             corFalgo,
                                                             mCorFactors_);  // return lookup map
}

References mCorFactors_.

Member Function Documentation

fractionContained()

double CastorPulseContainmentCorrection::fractionContained ( double  fc_ampl ) const

inline

Definition at line 17 of file CastorPulseContainmentCorrection.h.

{ return 1.0 / this->getCorrection(fc_ampl); }

References getCorrection().

getCorrection()

double CastorPulseContainmentCorrection::getCorrection

(

double

fc_ampl

)

const

Definition at line 92 of file CastorPulseContainmentCorrection.cc.

                                                                           {
  double correction;
 
  std::map<double, double>::const_iterator fcupper, fclower;
 
  fcupper = mCorFactors_.upper_bound(fc_ampl);
  fclower = fcupper;
  fclower--;
 
  if (fcupper == mCorFactors_.end()) {
    correction = fclower->second;
  } else if (fcupper == mCorFactors_.begin()) {
    correction = fcupper->second;
  } else {
    if (fabs(fclower->first - fc_ampl) < fabs(fcupper->first - fc_ampl))
      correction = fclower->second;
    else
      correction = fcupper->second;
  }
 
#if 0
  char s[80];
  sprintf (s, "%7.1f (%8.5f %8.5f) (%8.5f %8.5f) %8.5f",
       fc_ampl,
       fclower->first, fclower->second,
       fcupper->first, fcupper->second,
       correction);
  cout << s << endl;
#endif
 
  return correction;
}

References pfMETCorrectionType0_cfi::correction, gather_cfg::cout, mCorFactors_, and alignCSCRings::s.

Referenced by JetReCalibrator.JetReCalibrator::correct(), and fractionContained().

Member Data Documentation

mCorFactors_

std::map<double, double> CastorPulseContainmentCorrection::mCorFactors_

private

Definition at line 20 of file CastorPulseContainmentCorrection.h.

Referenced by CastorPulseContainmentCorrection(), and getCorrection().