class to contain the MC fudge factor formulae More...

#include <SVDMCFudgeFactorFunction.h>

Inheritance diagram for SVDMCFudgeFactorFunction:

Public Types
typedef double(SVDMCFudgeFactorFunction::*	fudgeFactorFunction) (double) const
	typedef of the return value of the fudge factor function

Public Member Functions
double	getFudgeFactor (double trkAngle) const
	returns the fudge factor, depending on the track's angle

	SVDMCFudgeFactorFunction ()
	constructor

void	set_current (int current)
	allows to choose the function version

void	set_chebyCoeffs (std::vector< double > c)
	Set the vector of Chebyshev coefficients Input:

void	set_graphPoints (std::vector< double > x, std::vector< double > y)
	Set vectors of TGraph points (x for angles, y for sigmas) Input:

	SVDMCFudgeFactorFunction (const Belle2::SVDMCFudgeFactorFunction &a)
	copy constructor

SVDMCFudgeFactorFunction &	operator= (const Belle2::SVDMCFudgeFactorFunction &a)
	operator =

Private Member Functions
double	cheby_v0 (double trkAngle) const
	cheby_v0 implementation

double	tgraph_v0 (double trkAngle) const
	tgraph_v0 implementation

	ClassDef (SVDMCFudgeFactorFunction, 2)
	Do not stream this, please throw it in the WC.

Private Attributes
std::vector< double >	m_chebyCoeffs
	function parameters & implementations

std::vector< double >	m_x
	ID = {1}, rel07: fudge factor parametrized with linear interpolation between graph points.

std::vector< double >	m_y
	Vectors of TGraph points for the sigmas.

int	m_current
	current function ID

Static Private Attributes
static std::vector< fudgeFactorFunction >	m_implementations
	vector of functions for fudge factor computation, we use the m_current

Detailed Description

class to contain the MC fudge factor formulae

Definition at line 28 of file SVDMCFudgeFactorFunction.h.

Member Typedef Documentation

◆ fudgeFactorFunction

typedef double(SVDMCFudgeFactorFunction::* fudgeFactorFunction) (double) const

typedef of the return value of the fudge factor function

Definition at line 33 of file SVDMCFudgeFactorFunction.h.

Constructor & Destructor Documentation

◆ SVDMCFudgeFactorFunction() [1/2]

SVDMCFudgeFactorFunction ( )

inline

constructor

Definition at line 43 of file SVDMCFudgeFactorFunction.h.

    {
      // The m_implementations vector is static.
      // We have to initialize it just once.
      if (m_implementations.size() == 0) {
        m_implementations.push_back(&SVDMCFudgeFactorFunction::cheby_v0);
        m_implementations.push_back(&SVDMCFudgeFactorFunction::tgraph_v0);
      }
 
      m_current = m_implementations.size() - 1;
 
    };

◆ SVDMCFudgeFactorFunction() [2/2]

SVDMCFudgeFactorFunction ( const Belle2::SVDMCFudgeFactorFunction & a )

copy constructor

Definition at line 15 of file SVDMCFudgeFactorFunction.cc.

                                                                                    : TObject(a)
{
  m_chebyCoeffs = a.m_chebyCoeffs;
 
  m_x = a.m_x;
  m_y = a.m_y;
 
  m_current = a.m_current;
 
}

Member Function Documentation

◆ cheby_v0()

double cheby_v0 ( double trkAngle ) const

inlineprivate

cheby_v0 implementation

Parameters

trkAngle track's incident angle

Returns: fudge factor as a function of the track's angle

Definition at line 105 of file SVDMCFudgeFactorFunction.h.

    {
      TF1* f = (TF1*) gROOT->GetFunction(TString::Format("chebyshev%lu", m_chebyCoeffs.size() - 1));
      f->SetParameters(&m_chebyCoeffs[0]);
 
      return f->Eval(trkAngle);
    };

◆ getFudgeFactor()

double getFudgeFactor ( double trkAngle ) const

inline

returns the fudge factor, depending on the track's angle

Definition at line 36 of file SVDMCFudgeFactorFunction.h.

    {
      fudgeFactorFunction f = m_implementations[m_current];
      return (this->*f)(trkAngle) ;
    }

◆ operator=()

SVDMCFudgeFactorFunction & operator= ( const Belle2::SVDMCFudgeFactorFunction & a )

operator =

Definition at line 26 of file SVDMCFudgeFactorFunction.cc.

{
  if (this == &a)
    return *this;
 
  m_chebyCoeffs = a.m_chebyCoeffs;
 
  m_x = a.m_x;
  m_y = a.m_y;
 
  m_current = a.m_current;
 
  return *this;
}

◆ set_chebyCoeffs()

void set_chebyCoeffs ( std::vector< double > c )

inline

Set the vector of Chebyshev coefficients Input:

Parameters

c

Definition at line 68 of file SVDMCFudgeFactorFunction.h.

    {
      m_chebyCoeffs = c;
    }

◆ set_current()

void set_current ( int current )

inline

allows to choose the function version

Definition at line 57 of file SVDMCFudgeFactorFunction.h.

    {
      m_current = current;
    }

◆ set_graphPoints()

void set_graphPoints	(	std::vector< double >	x,
		std::vector< double >	y
	)

inline

Set vectors of TGraph points (x for angles, y for sigmas) Input:

Parameters

x
y

Definition at line 80 of file SVDMCFudgeFactorFunction.h.

    {
      m_x = x;
      m_y = y;
    }

◆ tgraph_v0()

double tgraph_v0 ( double trkAngle ) const

inlineprivate

tgraph_v0 implementation

Parameters

trkAngle track's incident angle

Returns: fudge factor as a function of the track's angle

Definition at line 125 of file SVDMCFudgeFactorFunction.h.

    {
      TGraph* g = new TGraph(m_x.size(), &m_x[0], &m_y[0]);
      double returnvalue = g->Eval(trkAngle);
      delete g;
 
      return returnvalue;
    };

Member Data Documentation

◆ m_chebyCoeffs

std::vector<double> m_chebyCoeffs

private

function parameters & implementations

ID = {0}, rel07: fudge factor parametrized with Chebyshev polynomial Vector of Chebyshev coefficients

Definition at line 99 of file SVDMCFudgeFactorFunction.h.

◆ m_current

int m_current

private

current function ID

Definition at line 135 of file SVDMCFudgeFactorFunction.h.

◆ m_implementations

std::vector< SVDMCFudgeFactorFunction::fudgeFactorFunction > m_implementations

staticprivate

vector of functions for fudge factor computation, we use the m_current

Definition at line 138 of file SVDMCFudgeFactorFunction.h.

◆ m_x

std::vector<double> m_x

private

ID = {1}, rel07: fudge factor parametrized with linear interpolation between graph points.

Vectors of TGraph points for the angles

Definition at line 117 of file SVDMCFudgeFactorFunction.h.

◆ m_y

std::vector<double> m_y

private

Vectors of TGraph points for the sigmas.

Definition at line 119 of file SVDMCFudgeFactorFunction.h.

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

svd/dbobjects/include/SVDMCFudgeFactorFunction.h
svd/dbobjects/src/SVDMCFudgeFactorFunction.cc

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Member Typedef Documentation

◆ fudgeFactorFunction

Constructor & Destructor Documentation

◆ SVDMCFudgeFactorFunction() [1/2]

◆ SVDMCFudgeFactorFunction() [2/2]

Member Function Documentation

◆ cheby_v0()

◆ getFudgeFactor()

◆ operator=()

◆ set_chebyCoeffs()

◆ set_current()

◆ set_graphPoints()

◆ tgraph_v0()

Member Data Documentation

◆ m_chebyCoeffs

◆ m_current

◆ m_implementations

◆ m_x

◆ m_y