PndSttHelixTrackFitter.h File Reference

#include "PndSttTrack.h"
#include "PndSttTrackFitter.h"
#include "TList.h"
#include <map>

Go to the source code of this file.

Classes
class	PndSttHelixTrackFitter

Functions
void	fcnHelix (Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag)
void	fcnHelix2 (Int_t &npar, Double_t *gin, Double_t &f, Double_t *par, Int_t iflag)

Function Documentation

void fcnHelix	(	Int_t &	npar,
		Double_t *	gin,
		Double_t &	f,
		Double_t *	par,
		Int_t	iflag
	)

Definition at line 1593 of file PndSttHelixTrackFitter.cxx.

References Double_t, i, and sqrt().

Referenced by PndSttHelixTrackFitter::MinuitFit().

{

  TMatrixT<Double_t> *mama = (TMatrixT<Double_t> *)gMinuit->GetObjectFit();

  Double_t chisq = 0;
  Double_t delta = 0;
  Int_t hitcounter = mama->GetNrows();
  for (Int_t i = 0; i < hitcounter; i++)
    { 
      delta =sqrt((mama[0][i][0]-par[0])*(mama[0][i][0]-par[0])+(mama[0][i][1]-par[1])*(mama[0][i][1]-par[1])) -par[2] ;
      if(mama[0][i][2] == 0) chisq += (delta * delta * 12.);
      else chisq += (delta*delta)/(mama[0][i][2] * mama[0][i][2] / 12.);
    }
  f = chisq; 
}

void fcnHelix2	(	Int_t &	npar,
		Double_t *	gin,
		Double_t &	f,
		Double_t *	par,
		Int_t	iflag
	)

Definition at line 1610 of file PndSttHelixTrackFitter.cxx.

References Double_t, i, and sqrt().

Referenced by PndSttHelixTrackFitter::MinuitFit().

{
  TMatrixT<Double_t> *mama = (TMatrixT<Double_t> *)gMinuit->GetObjectFit();

  Double_t chisq = 0;
  Double_t delta = 0;
  Int_t hitcounter = mama->GetNrows();
  for (Int_t i = 0; i < hitcounter; i++)
    { 
      delta =sqrt((mama[0][i][0]-par[0])*(mama[0][i][0]-par[0])+(mama[0][i][1]-par[1])*(mama[0][i][1]-par[1])) -par[2] ;
      if(mama[0][i][2] == 0) chisq += (delta * delta * 12.);
      else chisq += (delta*delta)/(pow(mama[0][i][3],2));
      
    }
 
  f = chisq;
}