// TPC Track Class
//
// Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
-//-------------------------------------------------------
-
-/*****************************************************************************
- * December 18, 2000 *
- * Internal view of the TPC track parametrisation as well as the order of *
- * track parameters are subject for possible changes ! *
- * Use GetExternalParameters() and GetExternalCovariance() to access TPC *
- * track information regardless of its internal representation. *
- * This formation is now fixed in the following way: *
- * external param0: local Y-coordinate of a track (cm) *
- * external param1: local Z-coordinate of a track (cm) *
- * external param2: local sine of the track momentum azimuth angle *
- * external param3: tangent of the track momentum dip angle *
- * external param4: 1/pt (1/(GeV/c)) *
- *****************************************************************************/
+//
+// December 18, 2000
+// Internal view of the TPC track parametrisation as well as the order of
+// track parameters are subject for possible changes !
+// Use GetExternalParameters() and GetExternalCovariance() to access TPC
+// track information regardless of its internal representation.
+// This formation is now fixed in the following way:
+// external param0: local Y-coordinate of a track (cm)
+// external param1: local Z-coordinate of a track (cm)
+// external param2: local sine of the track momentum azimuth angle
+// external param3: tangent of the track momentum dip angle
+// external param4: 1/pt (1/(GeV/c))
+//
#include <AliKalmanTrack.h>
#include <TMath.h>
#include "AliTPCreco.h"
-
-class AliBarrelTrack;
+#include "AliExternalTrackParam.h"
class AliESDtrack;
//_____________________________________________________________________________
AliTPCtrack();
AliTPCtrack(UInt_t index, const Double_t xx[5],
const Double_t cc[15], Double_t xr, Double_t alpha);
- AliTPCtrack(const AliKalmanTrack& t, Double_t alpha);
AliTPCtrack(const AliESDtrack& t);
AliTPCtrack(const AliTPCtrack& t);
virtual ~AliTPCtrack() {}
Int_t Rotate(Double_t angle);
void SetdEdx(Double_t dedx) {fdEdx=dedx;}
+ Double_t GetYat(Double_t x) const ;
Double_t GetX() const {return fX;}
Double_t GetAlpha() const {return fAlpha;}
Double_t GetdEdx() const {return fdEdx;}
void GetExternalCovariance(Double_t cov[15]) const ;
// [SR, 01.04.2003]
-
- void GetBarrelTrack(AliBarrelTrack *track);
-
- void ResetNWrong() {fNWrong = 0;}
- void ResetNRotation() {fNRotation = 0;}
-
- Int_t GetNWrong() const {return fNWrong;}
- Int_t GetNRotation() const {return fNRotation;}
-
Int_t GetNumber() const {return fNumber;}
void SetNumber(Int_t n) {fNumber = n;}
//
Int_t PropagateTo(Double_t xr,Double_t x0=28.94,Double_t rho=0.9e-3);
Int_t Update(const AliCluster* c, Double_t chi2, UInt_t i);
void ResetCovariance();
-
+ void ResetClusters() {SetNumberOfClusters(0); SetChi2(0.);}
+ void UpdatePoints();//update points
+ Float_t* GetPoints() {return fPoints;}
+ //
+ // TClonesArray * fHelixIn; //array of helixes
+ //TClonesArray * fHelixOut; //array of helixes
+ //
+ Float_t Density(Int_t row0, Int_t row1); //calculate cluster density
+ Float_t Density2(Int_t row0, Int_t row1); //calculate cluster density
+ Double_t GetZat0() const;
+ Double_t GetD(Double_t x=0, Double_t y=0) const;
+ AliExternalTrackParam & GetReference(){ return fReference;}
+ void UpdateReference(){ new (&fReference) AliExternalTrackParam(*this);}
+ Int_t GetKinkIndex(Int_t i) const{ return fKinkIndexes[i];}
+ Int_t* GetKinkIndexes() { return fKinkIndexes;}
protected:
Double_t fX; // X-coordinate of this track (reference plane)
Double_t fAlpha; // Rotation angle the local (TPC sector)
Double_t fC30, fC31, fC32, fC33; // track
Double_t fC40, fC41, fC42, fC43, fC44; // parameters
- UInt_t fIndex[kMaxRow]; // indices of associated clusters
-
+ Int_t fIndex[kMaxRow]; // indices of associated clusters
+ Float_t fPoints[4]; //first, max dens row end points of the track and max density
//[SR, 01.04.2003]
- Int_t fNWrong; // number of wrong clusters
- Int_t fNRotation; // number of rotations
Int_t fNumber; // magic number used for number of clusters
-
- ClassDef(AliTPCtrack,1) // Time Projection Chamber reconstructed tracks
+ // MI addition
+ Float_t fSdEdx; // sigma of dedx
+ //
+ Int_t fNFoundable; //number of foundable clusters - dead zone taken to the account
+ Bool_t fBConstrain; // indicate seeding with vertex constrain
+ Int_t fLastPoint; // last cluster position
+ Int_t fFirstPoint; // first cluster position
+ Int_t fRemoval; // removal factor
+ Int_t fTrackType; // track type - 0 - normal - 1 - kink - 2 -V0 3- double found
+ Int_t fLab2; // index of corresponding track (kink, V0, double)
+ Int_t fNShared; // number of shared points
+ AliExternalTrackParam fReference; // track parameters at the middle of the chamber
+ Float_t fKinkPoint[12]; //radius, of kink, dfi and dtheta
+ Int_t fKinkIndexes[3]; // kink indexes - minus = mother + daughter
+
+ ClassDef(AliTPCtrack,2) // Time Projection Chamber reconstructed tracks
};
inline
void AliTPCtrack::GetExternalParameters(Double_t& xr, Double_t x[5]) const {
- //---------------------------------------------------------------------
// This function return external TPC track representation
- //---------------------------------------------------------------------
xr=fX;
x[0]=GetY(); x[1]=GetZ(); x[2]=GetSnp(); x[3]=GetTgl(); x[4]=Get1Pt();
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff