TOPPmtTTSPar Class Reference

Parameterized TTS for each PMT pixel. More...

#include <TOPPmtTTSPar.h>

Inheritance diagram for TOPPmtTTSPar:

Classes
struct	Gaussian
	Gaussian distribution parameters. More...

Public Types
enum	{ c_NumPmtPixels = 16 }
	number of PMT pixels More...

Public Member Functions
	TOPPmtTTSPar ()
	Default constructor.
	TOPPmtTTSPar (const std::string &serialNumber)
	Full constructor.
void	appendGaussian (unsigned pmtPixel, const Gaussian &gaus)
	Append struct gauss.
void	appendGaussian (unsigned pmtPixel, double fraction, double mean, double sigma)
	Append gaussian using its parameters (frac, mean, sigma)
int	getNumOfPixels () const
	Returns number of PMT pixels.
const std::string &	getSerialNumber () const
	Returns PMT serial number.
const std::vector< Gaussian > &	getGaussians (unsigned pmtPixel) const
	Returns vector of gaussians.
double	getRandomTime (unsigned pmtPixel) const
	Returns a random number, generated according to the distribution.
void	normalizeFractions ()
	Normalizes the gaussian fractions to unity.

Private Member Functions
	ClassDef (TOPPmtTTSPar, 2)
	ClassDef.

Private Attributes
std::string	m_serialNumber
	serial number, e.g.
std::vector< Gaussian >	m_gaussians [c_NumPmtPixels]
	TTS distribution composed of Gaussians.

Detailed Description

Parameterized TTS for each PMT pixel.

Definition at line 26 of file TOPPmtTTSPar.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

number of PMT pixels

Definition at line 41 of file TOPPmtTTSPar.h.

{c_NumPmtPixels = 16};

Constructor & Destructor Documentation

TOPPmtTTSPar() [1/2]

TOPPmtTTSPar ( )

inline

Default constructor.

Definition at line 46 of file TOPPmtTTSPar.h.

    {}

TOPPmtTTSPar() [2/2]

TOPPmtTTSPar ( const std::string & serialNumber )

inlineexplicit

Full constructor.

Parameters

serialNumber

serial number

Definition at line 53 of file TOPPmtTTSPar.h.

                                                        :
      m_serialNumber(serialNumber)
    {}

Member Function Documentation

appendGaussian() [1/2]

void appendGaussian ( unsigned pmtPixel, const Gaussian & gaus )

inline

Append struct gauss.

Parameters

pmtPixel	PMT pixel number (1-based)
gaus	gaussian to be appended

Definition at line 63 of file TOPPmtTTSPar.h.

    {
      pmtPixel--;
      if (pmtPixel >= c_NumPmtPixels) {
        B2ERROR("TOPPmtTTSPar::appendGaussian: invalid PMT pixel "
                << LogVar("PMT pixel", pmtPixel + 1));
        return;
      }
      m_gaussians[pmtPixel].push_back(gaus);
    }

appendGaussian() [2/2]

void appendGaussian ( unsigned pmtPixel, double fraction, double mean, double sigma )

inline

Append gaussian using its parameters (frac, mean, sigma)

Parameters

pmtPixel	PMT pixel number (1-based)
fraction	normalization fraction of the gaussian
mean	mean of the gaussian
sigma	sigma of the gaussian

Definition at line 82 of file TOPPmtTTSPar.h.

    {
      Gaussian gaus;
      gaus.fraction = fraction;
      gaus.mean = mean;
      gaus.sigma = sigma;
      appendGaussian(pmtPixel, gaus);
    }

getGaussians()

const std::vector< Gaussian > & getGaussians ( unsigned pmtPixel ) const

inline

Returns vector of gaussians.

Parameters

pmtPixel

PMT pixel number (1-based)

Returns

vector of gaussians

Definition at line 109 of file TOPPmtTTSPar.h.

    {
      pmtPixel--;
      if (pmtPixel >= c_NumPmtPixels) {
        B2ERROR("TOPPmtTTSPar::getGaussians: invalid PMT pixel. "
                "Returning data for pixel 1."
                << LogVar("PMT pixel", pmtPixel + 1));
        pmtPixel = 0;
      }
      return m_gaussians[pmtPixel];
    }

getNumOfPixels()

int getNumOfPixels ( ) const

inline

Returns number of PMT pixels.

Returns

number of pixels

Definition at line 95 of file TOPPmtTTSPar.h.

{return c_NumPmtPixels;}

getRandomTime()

double getRandomTime ( unsigned pmtPixel ) const

inline

Returns a random number, generated according to the distribution.

Parameters

pmtPixel

PMT pixel number (1-based)

Returns

random time or 0 for invalid pixel

Definition at line 127 of file TOPPmtTTSPar.h.

    {
      pmtPixel--;
      if (pmtPixel >= c_NumPmtPixels) return 0;
 
      double prob = gRandom->Rndm();
      double s = 0;
      for (const auto& gaus : m_gaussians[pmtPixel]) {
        s = s + gaus.fraction;
        if (prob < s) {
          return gRandom->Gaus(gaus.mean, gaus.sigma);
        }
      }
      return 0;  // this should not happen, if fractions are properly normalized
    }

getSerialNumber()

const std::string & getSerialNumber ( ) const

inline

Returns PMT serial number.

Returns

serial number

Definition at line 101 of file TOPPmtTTSPar.h.

{return m_serialNumber;}

normalizeFractions()

void normalizeFractions ( )

inline

Normalizes the gaussian fractions to unity.

Definition at line 147 of file TOPPmtTTSPar.h.

    {
      double sum = 0;
      for (int ich = 0 ; ich < c_NumPmtPixels ; ich++) {
        for (const auto& gaus : m_gaussians[ich]) {
          sum = sum + gaus.fraction;
        }
        if (sum == 0) return;
        for (auto& gaus : m_gaussians[ich]) {
          gaus.fraction = gaus.fraction / sum;
        }
      }
      return;
    }

Member Data Documentation

m_gaussians

std::vector<Gaussian> m_gaussians[c_NumPmtPixels]

private

TTS distribution composed of Gaussians.

Definition at line 167 of file TOPPmtTTSPar.h.

m_serialNumber

std::string m_serialNumber

private

serial number, e.g.

JTxxxx

Definition at line 166 of file TOPPmtTTSPar.h.

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The documentation for this class was generated from the following file:

• top/dbobjects/include/TOPPmtTTSPar.h