SVDMCFudgeFactorFunction Class Reference

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

#include <SVDMCFudgeFactorFunction.h>

Inheritance diagram for SVDMCFudgeFactorFunction:

Collaboration 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: More...
void	set_graphPoints (std::vector< double > x, std::vector< double > y)
	Set vectors of TGraph points (x for angles, y for sigmas) Input: More...
	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 More...
double	tgraph_v0 (double trkAngle) const
	tgraph_v0 implementation More...
	ClassDef (SVDMCFudgeFactorFunction, 2)
	Do not stream this, please throw it in the WC.

Private Attributes
std::vector< double >	m_chebyCoeffs
	function parameters & implementations More...
std::vector< double >	m_x
	ID = {1}, rel07: fudge factor parametrized with linear interpolation between graph points. More...
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 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);
    };

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.

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.

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.

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_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.

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

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