smearFunctionBase Class Reference

#include <Functions.h>

Inheritance diagram for smearFunctionBase:

Public Member Functions
virtual void	smear (double &pt, double &eta, double &phi, const double *y, const std::vector< double > &parSmear)=0
	smearFunctionBase ()
virtual	~smearFunctionBase ()=0

Protected Member Functions
void	smearEta (double &eta)

Protected Attributes
double	cotgth_
TRandom *	gRandom_

Detailed Description

Definition at line 2845 of file Functions.h.

Constructor & Destructor Documentation

smearFunctionBase::smearFunctionBase ( )

inline

Definition at line 2848 of file Functions.h.

References cotgth_, and gRandom_.

                      {
    cotgth_ = 0.;
    gRandom_ = new TRandom();
  }

smearFunctionBase::~smearFunctionBase ( )

inlinepure virtual

Definition at line 2867 of file Functions.h.

{ }  // defined even though it's pure virtual; should be faster this way.

Member Function Documentation

virtual void smearFunctionBase::smear ( double &  pt, double &  eta, double &  phi, const double *  y, const std::vector< double > &  parSmear  )

pure virtual

Implemented in smearFunctionType7, smearFunctionType6, smearFunctionType5, smearFunctionType4, smearFunctionType3, smearFunctionType2, smearFunctionType1, and smearFunctionType0.

Referenced by MuScleFitUtils::applySmearing().

void smearFunctionBase::smearEta ( double &  eta )

inlineprotected

Definition at line 2854 of file Functions.h.

References cotgth_, log, Pi, funct::tan(), and theta().

Referenced by smearFunctionType1::smear(), smearFunctionType2::smear(), smearFunctionType3::smear(), smearFunctionType4::smear(), and smearFunctionType5::smear().

                              {
    double theta;
    if (cotgth_!=0) {
      theta = atan(1/cotgth_);
    } else {
      theta = TMath::Pi()/2;
    }
    if (theta<0) theta += TMath::Pi();
    eta = -log(tan(theta/2));
  }

Member Data Documentation

double smearFunctionBase::cotgth_

protected

Definition at line 2864 of file Functions.h.

Referenced by smearFunctionType1::smear(), smearFunctionType2::smear(), smearFunctionType3::smear(), smearFunctionType4::smear(), smearFunctionType5::smear(), smearEta(), and smearFunctionBase().

TRandom* smearFunctionBase::gRandom_

protected

Definition at line 2865 of file Functions.h.

Referenced by smearFunctionType6::smear(), and smearFunctionBase().