BackgroundPDF Class Reference

Parametrization of background PDF in pixels of single module. More...

#include <BackgroundPDF.h>

Public Member Functions
	BackgroundPDF (int moduleID)
	Class constructor.
int	getModuleID () const
	Returns slot ID.
double	getPDFValue (int pixelID) const
	Returns PDF value for given pixel.
const std::vector< double > &	getPDF () const
	Returns pixel part of PDF.
double	getEfficiency () const
	Returns average of pixel relative efficiencies.

Private Member Functions
void	set ()
	Sets the PDF.

Private Attributes
int	m_moduleID
	slot ID
std::vector< double >	m_pdf
	pixel part of PDF (index = pixelID - 1)
double	m_effi = 0
	average relative efficiency

Friends
class	TOPRecoManager

Detailed Description

Parametrization of background PDF in pixels of single module.

Definition at line 23 of file BackgroundPDF.h.

Constructor & Destructor Documentation

BackgroundPDF()

BackgroundPDF ( int  moduleID )

explicit

Class constructor.

Parameters

moduleID

slot ID

Definition at line 22 of file BackgroundPDF.cc.

                                            :
      m_moduleID(moduleID)
    {
      const auto* yScanner = TOPRecoManager::getYScanner(moduleID);
      if (not yScanner) B2FATAL("TOP::BackgroundPDF: invalid slot number, moduleID = " << moduleID);
 
      const auto& pixelPositions = yScanner->getPixelPositions().getPixels();
      const auto& pixelMasks = yScanner->getPixelMasks().getMasks();
      const auto& pixelEfficiencies = yScanner->getPixelEfficiencies().getEfficiencies();
 
      if (pixelMasks.size() != pixelPositions.size() or pixelEfficiencies.size() != pixelPositions.size()) {
        B2FATAL("TOP::BackgroundPDF: pixel positions, masks and efficiencies have different sizes for slot " << moduleID
                << LogVar("pixelPositions.size()", pixelPositions.size())
                << LogVar("pixelMasks.size()", pixelMasks.size())
                << LogVar("pixelEfficiencies.size()", pixelEfficiencies.size()));
      }
 
      m_pdf.resize(pixelPositions.size(), 0);
      set();
    }

Member Function Documentation

getEfficiency()

double getEfficiency ( ) const

inline

Returns average of pixel relative efficiencies.

Returns

average of pixel relative efficiencies

Definition at line 56 of file BackgroundPDF.h.

{return m_effi;}

getModuleID()

int getModuleID ( ) const

inline

Returns slot ID.

Returns

slot ID

Definition at line 37 of file BackgroundPDF.h.

{return m_moduleID;}

getPDF()

const std::vector< double > & getPDF ( ) const

inline

Returns pixel part of PDF.

Returns

pixel part of PDF (index = pixelID - 1)

Definition at line 50 of file BackgroundPDF.h.

{return m_pdf;}

getPDFValue()

double getPDFValue

(

int

pixelID

)

const

Returns PDF value for given pixel.

Parameters

pixelID

pixel ID

Returns

PDF value

Definition at line 72 of file BackgroundPDF.cc.

    {
      unsigned k = pixelID - 1;
      if (k < m_pdf.size()) return m_pdf[k] / TOPRecoManager::getTimeWindowSize();
      return 0;
    }

set()

void set ( )

private

Sets the PDF.

Definition at line 44 of file BackgroundPDF.cc.

    {
      const auto* yScanner = TOPRecoManager::getYScanner(m_moduleID);
      const auto& pixelPositions = yScanner->getPixelPositions().getPixels();
      const auto& pixelMasks = yScanner->getPixelMasks().getMasks();
      const auto& pixelEfficiencies = yScanner->getPixelEfficiencies().getEfficiencies();
 
      double S = 0;
      for (size_t i = 0; i < m_pdf.size(); i++) {
        const auto& pixel = pixelPositions[i];
        double s = pixel.Dx * pixel.Dy;
        S += s;
        if (pixelMasks[i]) {
          m_pdf[i] = s * pixelEfficiencies[i];
        } else {
          m_pdf[i] = 0;
        }
      }
 
      double sum = 0;
      for (auto pdf : m_pdf) sum += pdf;
      if (sum == 0) return;
 
      for (auto& pdf : m_pdf) pdf /= sum;
      m_effi = sum / S;
    }

Friends And Related Function Documentation

TOPRecoManager

friend class TOPRecoManager

friend

Definition at line 69 of file BackgroundPDF.h.

Member Data Documentation

m_effi

double m_effi = 0

private

average relative efficiency

Definition at line 67 of file BackgroundPDF.h.

m_moduleID

int m_moduleID

private

slot ID

Definition at line 65 of file BackgroundPDF.h.

m_pdf

std::vector<double> m_pdf

private

pixel part of PDF (index = pixelID - 1)

Definition at line 66 of file BackgroundPDF.h.

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

• top/reconstruction_cpp/include/BackgroundPDF.h
• top/reconstruction_cpp/src/BackgroundPDF.cc