#include "AliTPCtrack.h"
#include "AliCluster.h"
-#include "AliBarrelTrack.h"
#include "AliESDtrack.h"
ClassImp(AliTPCtrack)
//-------------------------------------------------
fX = fP0 = fP1 = fP2 = fP3 = fP3 = fP4 = 0.0;
fAlpha = fdEdx = 0.0;
- fNWrong = fNRotation = fNumber = 0; // [SR, 01.04.2003]
+ fNumber = 0; // [SR, 01.04.2003]
for (Int_t i=0; i<3;i++) fKinkIndexes[i]=0;
}
for (Int_t i=0; i<3;i++) fKinkIndexes[i]=0;
}
-//_____________________________________________________________________________
-AliTPCtrack::AliTPCtrack(const AliKalmanTrack& t,Double_t alpha) :
-AliKalmanTrack(t) {
- //-----------------------------------------------------------------
- // Conversion AliKalmanTrack -> AliTPCtrack.
- //-----------------------------------------------------------------
- SetChi2(0.);
- SetNumberOfClusters(0);
-
- fdEdx = 0.;
- fAlpha = alpha;
- if (fAlpha < -TMath::Pi()) fAlpha += 2*TMath::Pi();
- else if (fAlpha >= TMath::Pi()) fAlpha -= 2*TMath::Pi();
-
- //Conversion of the track parameters
- Double_t x,p[5]; t.GetExternalParameters(x,p);
- fX=x; x=GetConvConst();
- fP0=p[0];
- fP1=p[1];
- fP3=p[3];
- fP4=p[4]/x;
- fP2=fP4*fX - p[2];
-
- //Conversion of the covariance matrix
- Double_t c[15]; t.GetExternalCovariance(c);
- c[10]/=x; c[11]/=x; c[12]/=x; c[13]/=x; c[14]/=x*x;
-
- Double_t c22=fX*fX*c[14] - 2*fX*c[12] + c[5];
- Double_t c32=fX*c[13] - c[8];
- Double_t c20=fX*c[10] - c[3], c21=fX*c[11] - c[4], c42=fX*c[14] - c[12];
-
- fC00=c[0 ];
- fC10=c[1 ]; fC11=c[2 ];
- fC20=c20; fC21=c21; fC22=c22;
- fC30=c[6 ]; fC31=c[7 ]; fC32=c32; fC33=c[9 ];
- fC40=c[10]; fC41=c[11]; fC42=c42; fC43=c[13]; fC44=c[14];
- //
- //MI
- fSdEdx = 0;
- fNFoundable = 0;
- fBConstrain = 0;
- fLastPoint = 0;
- fFirstPoint = 0;
- fRemoval = 0;
- fTrackType = 0;
- fLab2 = 0;
- for (Int_t i=0; i<3;i++) fKinkIndexes[i]=0;
-}
-
//_____________________________________________________________________________
AliTPCtrack::AliTPCtrack(const AliESDtrack& t) : AliKalmanTrack() {
//-----------------------------------------------------------------
fLab2 = t.fLab2;
for (Int_t i=0; i<3;i++) fKinkIndexes[i]=t.fKinkIndexes[i];
}
-//_____________________________________________________________________________
-void AliTPCtrack::GetBarrelTrack(AliBarrelTrack *track) const{
- //
- // Create a Barrel Track out of this track
- // Current track is propagated to the reference plane
- // by the tracker
- //
- // [SR, 01.04.2003]
-
- if (!track) return;
- Double_t xr, vec[5], cov[15];
-
- track->SetLabel(GetLabel());
- track->SetX(fX, fAlpha);
- track->SetNClusters(GetNumberOfClusters(), GetChi2());
- Double_t times[10];
- GetIntegratedTimes(times);
- track->SetTime(times, GetIntegratedLength());
-
- track->SetMass(GetMass());
- track->SetdEdX(GetdEdx());
-
- track->SetNWrongClusters(fNWrong);
- track->SetNRotate(fNRotation);
-
- GetExternalParameters(xr, vec);
- track->SetStateVector(vec);
-
- GetExternalCovariance(cov);
- track->SetCovarianceMatrix(cov);
-
-}
//_____________________________________________________________________________
Int_t AliTPCtrack::Compare(const TObject *o) const {
//-----------------------------------------------------------------
//-----------------------------------------------------------------
// This function associates a cluster with this track.
//-----------------------------------------------------------------
-
- // update the number of wrong SR[20.03.2003]
- Int_t absLabel = TMath::Abs(GetLabel());
- if ( (c->GetLabel(0) != absLabel) &&
- (c->GetLabel(0) != absLabel) &&
- (c->GetLabel(0) != absLabel)) fNWrong++;
- //
-
Double_t r00=c->GetSigmaY2(), r01=0., r11=c->GetSigmaZ2();
r00+=fC00; r01+=fC10; r11+=fC11;
Double_t det=r00*r11 - r01*r01;
//-----------------------------------------------------------------
// This function rotates this track.
//-----------------------------------------------------------------
-
- if (alpha != 0) fNRotation++; // [SR, 01.04.2003]
-
fAlpha += alpha;
if (fAlpha<-TMath::Pi()) fAlpha += 2*TMath::Pi();
if (fAlpha>=TMath::Pi()) fAlpha -= 2*TMath::Pi();