TPNCor Class Reference

#include <TPNCor.h>

Inheritance diagram for TPNCor:

Public Types
enum	VarGain { iGain0, iGain1, iSizeGain }
enum	VarParPN { iPar0, iPar1, iPar2, iSizePar }

Public Member Functions
double	getPNCorrectionFactor (double val0, int gain)
	TPNCor (std::string filename)
virtual	~TPNCor ()

Public Attributes
double	corParams [iSizeGain][iSizePar]
int	isFileOK

Detailed Description

Definition at line 7 of file TPNCor.h.

Member Enumeration Documentation

enum TPNCor::VarGain

Enumerator
iGain0
iGain1
iSizeGain

Definition at line 22 of file TPNCor.h.

{ iGain0, iGain1, iSizeGain }; 

enum TPNCor::VarParPN

Enumerator
iPar0
iPar1
iPar2
iSizePar

Definition at line 23 of file TPNCor.h.

{ iPar0, iPar1, iPar2, iSizePar }; 

Constructor & Destructor Documentation

TPNCor::TPNCor

(

std::string

filename

)

Definition at line 22 of file TPNCor.cc.

References EnergyCorrector::c, gather_cfg::cout, groupFilesInBlocks::fin, i, j, and ctpps_dqm_sourceclient-live_cfg::test.

{

  // Initialize

  isFileOK=0;

  for(int i=0;i<iSizePar;i++){
    for(int j=0;j<iSizeGain;j++){
      corParams[j][i] = 0.0   ;
    }
  }
  
  // Get values from file
  
  FILE *test;
  test = fopen(filename.c_str(),"r");
  char c;
  int gain;
  double aa, bb, cc;
  std::ifstream fin;
  
  if( test ) {
    fclose( test );
    fin.open(filename.c_str());
    while( (c=fin.peek()) != EOF )
      {
    fin >> gain>> aa >> bb >> cc;
    
    if(gain<iSizeGain){
      corParams[gain][0]=aa;
      corParams[gain][1]=bb;
      corParams[gain][2]=cc;
    }
      }
    isFileOK=1;
    fin.close();
  }else {
    cout <<" No PN linearity corrections file found, no correction will be applied "<< endl;
  }

}

TPNCor::~TPNCor ( )

virtual

Definition at line 66 of file TPNCor.cc.

{ 

  
}

Member Function Documentation

double TPNCor::getPNCorrectionFactor	(	double	val0,
		int	gain
	)

Definition at line 72 of file TPNCor.cc.

References corr, and gather_cfg::cout.

{
  
  double cor=0;
  double corr=1.0;
  double pn=val0;
  double xpn=val0/1000.0;

  if( isFileOK==0) return 1.0;

  if( gain> iSizeGain ) cout << "Unknown gain, gain has to be lower than "<<iSizeGain << endl;
  
  if( gain< iSizeGain ) {
    
    cor=xpn*(corParams[gain][0] +xpn*(corParams[gain][1]+xpn*corParams[gain][2]));
    
    if(pn!=0) corr = 1.0 - cor/pn;
    else corr=1.0;
  } 
  
  return corr;
}

Member Data Documentation

double TPNCor::corParams[iSizeGain][iSizePar]

Definition at line 28 of file TPNCor.h.

int TPNCor::isFileOK

Definition at line 29 of file TPNCor.h.