CastorPulseContainmentCorrection Class Reference

#include <CastorPulseContainmentCorrection.h>

List of all members.

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.
double	fractionContained (double fc_ampl) const
double	getCorrection (double fc_ampl) const
Private Attributes
std::map< double, double >	mCorFactors_

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Detailed Description

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

Definition at line 12 of file CastorPulseContainmentCorrection.h.

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Constructor & Destructor Documentation

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 81 of file CastorPulseContainmentCorrection.cc.

References mCorFactors_.

{
  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
}

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Member Function Documentation

double CastorPulseContainmentCorrection::fractionContained

(

double

fc_ampl

)

const [inline]

Definition at line 19 of file CastorPulseContainmentCorrection.h.

References getCorrection().

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

double CastorPulseContainmentCorrection::getCorrection

(

double

fc_ampl

)

const

Definition at line 98 of file CastorPulseContainmentCorrection.cc.

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

Referenced by fractionContained(), and CastorSimpleRecAlgoImpl::reco().

{
  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;
}

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Member Data Documentation

std::map<double,double> CastorPulseContainmentCorrection::mCorFactors_ [private]

Definition at line 22 of file CastorPulseContainmentCorrection.h.

Referenced by CastorPulseContainmentCorrection(), and getCorrection().