#ifndef ALITRDTRACK_H
-#define ALITRDTRACK_H
+#define ALITRDTRACK_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * See cxx source for full Copyright notice */
+ * See cxx source for full Copyright notice */
#include <AliKalmanTrack.h>
-#include <TMath.h>
+#include <TMath.h>
+
+#include "AliTRDgeometry.h"
+#include "AliESDtrack.h"
+#include "TVector2.h"
class AliTRDcluster;
-class AliTPCtrack;
+class AliTPCtrack;
+class AliESDtrack;
+class AliTrackReference;
const unsigned kMAX_CLUSTERS_PER_TRACK=210;
+class AliTRDtracklet :public TObject{
+ friend class AliTRDtrack;
+ public:
+ AliTRDtracklet();
+ void Set(Float_t x, Float_t y, Float_t z, Float_t alpha, Float_t error2){fX=x; fY=y; fZ=z; fAlpha=alpha; fSigma2= error2;}
+ void SetP0(Float_t p0){fP0=p0;}
+ void SetP1(Float_t p1){fP1=p1;}
+ void SetN(Int_t n){fNFound=n;}
+ void SetNCross(Int_t nc){fNCross=nc;}
+ void SetPlane(Int_t plane){fPlane=plane;}
+ void SetSigma2(Float_t sigma2){fExpectedSigma2=sigma2;}
+ void SetChi2(Float_t chi2){fChi2=chi2;}
+ void SetTilt(Float_t tilt){fTilt=tilt;}
+ void SetMaxPos(Short_t pos, Short_t pos4, Short_t pos5){fMaxPos = pos; fMaxPos4 = pos4; fMaxPos5 = pos5;}
+ Float_t GetX() const { return fX;}
+ Float_t GetY() const { return fY;}
+ Float_t GetZ() const {return fZ;}
+ Float_t GetAlpha() const { return fAlpha;}
+ Float_t GetTrackletSigma2() const { return fSigma2;}
+ //
+ Float_t GetP0() const {return fP0;}
+ Float_t GetP1() const {return fP1;}
+ Int_t GetN() const {return fNFound;}
+ Int_t GetNCross() const {return fNCross;}
+ Int_t GetPlane() const {return fPlane;}
+ Float_t GetClusterSigma2() const {return fExpectedSigma2;}
+ Float_t GetChi2() const {return fChi2;}
+ Float_t GetTilt() const {return fTilt;}
+ protected:
+ Float_t fY; // y position
+ Float_t fZ; // z position
+ Float_t fX; // x position
+ Float_t fAlpha; // rotation angle
+ Float_t fSigma2; // expected error of tracklet position
+ Float_t fP0; // offset in y
+ Float_t fP1; // offset in tangent
+ Int_t fNFound; // number of found clusters
+ Int_t fNCross; // number of crosses
+ Int_t fPlane; // plane number
+ Float_t fExpectedSigma2; // expected sigma of residual distribution of clusters
+ Float_t fChi2; // chi2 of the tracklet
+ Float_t fTilt; // tilt factor
+ Short_t fMaxPos; // time bin with max charge
+ Short_t fMaxPos4; // time bin with max charge
+ Short_t fMaxPos5; // time bin with max charge
+ ClassDef(AliTRDtracklet,2)
+};
+
+
class AliTRDtrack : public AliKalmanTrack {
// Represents reconstructed TRD track
-
+ friend class AliTRDtracker;
public:
- AliTRDtrack():AliKalmanTrack(){}
+ AliTRDtrack():AliKalmanTrack(){fBackupTrack=0;}
AliTRDtrack(const AliTRDcluster *c, UInt_t index, const Double_t xx[5],
const Double_t cc[15], Double_t xr, Double_t alpha);
AliTRDtrack(const AliTRDtrack& t);
AliTRDtrack(const AliKalmanTrack& t, Double_t alpha);
-
+ AliTRDtrack(const AliESDtrack& t);
+ //static AliTRDtrack * MakeTrack(const AliTrackReference *ref, Double_t mass);
+ ~AliTRDtrack();
Int_t Compare(const TObject *o) const;
- void CookdEdx(Double_t low=0.05, Double_t up=0.70);
-
+ void CookdEdx(Double_t low=0.05, Double_t up=0.7);
+ Float_t StatusForTOF();
Double_t GetAlpha() const {return fAlpha;}
+ Int_t GetSector() const {
+ //if (fabs(fAlpha) < AliTRDgeometry::GetAlpha()/2) return 0;
+ return Int_t(TVector2::Phi_0_2pi(fAlpha)/AliTRDgeometry::GetAlpha())%AliTRDgeometry::kNsect;}
+
Double_t GetC() const {return fC;}
Int_t GetClusterIndex(Int_t i) const {return fIndex[i];}
Float_t GetClusterdQdl(Int_t i) const {return fdQdl[i];}
void GetCovariance(Double_t cov[15]) const;
- Float_t GetdEdx() const {return fdEdx;}
+ Double_t GetdEdx() const {return fdEdx;}
+ Double_t GetPIDsignal() const {return GetdEdx();}
+ Float_t GetPIDsignals(Int_t i) const {return fdEdxPlane[i];}
+ Int_t GetPIDTimBin(Int_t i) const {return fTimBinPlane[i];}
Double_t GetEta() const {return fE;}
void GetExternalCovariance(Double_t cov[15]) const ;
Double_t GetLikelihoodElectron() const { return fLhElectron; };
- Double_t Get1Pt() const {return TMath::Abs(fC*GetConvConst());}
+ Double_t Get1Pt() const {
+ return (TMath::Sign(1e-9,fC) + fC)*GetLocalConvConst();
+ }
Double_t GetP() const {
return TMath::Abs(GetPt())*sqrt(1.+GetTgl()*GetTgl());
}
- Double_t GetPredictedChi2(const AliTRDcluster*) const ;
+ Double_t GetPredictedChi2(const AliTRDcluster*, Double_t h01) const ;
Double_t GetPt() const {return 1./Get1Pt();}
void GetPxPyPz(Double_t &px, Double_t &py, Double_t &pz) const ;
void GetGlobalXYZ(Double_t &x, Double_t &y, Double_t &z) const ;
Double_t GetX() const {return fX;}
Double_t GetY() const {return fY;}
Double_t GetZ() const {return fZ;}
+ UInt_t * GetBackupIndexes() {return fIndexBackup;}
+ UInt_t * GetIndexes() {return fIndex;}
+ Double_t GetYat(Double_t xk) const {
+//-----------------------------------------------------------------
+// This function calculates the Y-coordinate of a track at the plane x=xk.
+// Needed for matching with the TOF (I.Belikov)
+//-----------------------------------------------------------------
+ Double_t c1=fC*fX - fE, r1=TMath::Sqrt(1.- c1*c1);
+ Double_t c2=fC*xk - fE, r2=TMath::Sqrt(1.- c2*c2);
+ return fY + (xk-fX)*(c1+c2)/(r1+r2);
+ }
+ Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
+
+ void SetStop(Bool_t stop) {fStopped=stop;}
+ Bool_t GetStop() const {return fStopped;}
- Int_t PropagateTo(Double_t xr,
- Double_t x0=8.72,Double_t rho=5.86e-3,Double_t pm=0.139);
+ Int_t PropagateTo(Double_t xr, Double_t x0=8.72, Double_t rho=5.86e-3);
+ Int_t PropagateToX(Double_t xr, Double_t step);
+ Int_t PropagateToR(Double_t xr, Double_t step);
void ResetCovariance();
- Int_t Rotate(Double_t angle);
+ void ResetCovariance(Float_t mult);
+ void ResetClusters() { SetChi2(0.); SetNumberOfClusters(0); }
+ Int_t Rotate(Double_t angle, Bool_t absolute=kFALSE);
void SetdEdx(Float_t dedx) {fdEdx=dedx;}
+ void SetPIDsignals(Float_t dedx, Int_t i) {fdEdxPlane[i]=dedx;}
+ void SetPIDTimBin(Int_t timbin, Int_t i) {fTimBinPlane[i]=timbin;}
void SetLikelihoodElectron(Float_t l) { fLhElectron = l; };
void SetSampledEdx(Float_t q, Int_t i) {
+ Double_t s=GetSnp(), t=GetTgl();
+ q*= TMath::Sqrt((1-s*s)/(1+t*t));
+ fdQdl[i]=q;
+ }
+ void SetSampledEdx(Float_t q) {
Double_t s=GetSnp(), t=GetTgl();
q*= TMath::Sqrt((1-s*s)/(1+t*t));
- fdQdl[i]=q;
+ fdQdl[fNdedx]=q;
+ fNdedx++;
}
void SetSeedLabel(Int_t lab) { fSeedLab=lab; }
- Int_t Update(const AliTRDcluster* c, Double_t chi2, UInt_t i);
+ Int_t Update(const AliTRDcluster* c, Double_t chi2, UInt_t i,
+ Double_t h01);
+ Int_t UpdateMI(const AliTRDcluster* c, Double_t chi2, UInt_t i,
+ Double_t h01, Int_t plane);
+ Int_t UpdateMI(const AliTRDtracklet & tracklet);
+ //
+ void AddNWrong() {fNWrong++;}
+
+ Int_t GetNWrong() const {return fNWrong;}
+ Int_t GetNRotate() const {return fNRotate;}
+ Int_t GetNCross() const {return fNCross;}
+ void IncCross() {fNCross++; if (fBackupTrack) fBackupTrack->IncCross();}
+ AliTRDtrack * GetBackupTrack(){return fBackupTrack;}
+ void MakeBackupTrack();
+ //
protected:
+ void GetXYZ(Float_t r[3]) const;
+
+ Double_t GetPredictedChi2(const AliCluster*/*c*/) const {return 0.;}
+ Int_t Update(const AliCluster*/*c*/, Double_t /*chi2*/, UInt_t /*i*/) {
+ return 0;
+ }
Int_t fSeedLab; // track label taken from seeding
Float_t fdEdx; // dE/dx
+ Float_t fdEdxT; // dE/dx - truncated mean
+ Float_t fDE; // integrated delta energy
+ Float_t fdEdxPlane[kNPlane]; // dE/dx from all 6 planes
+ Int_t fTimBinPlane[kNPlane]; // time bin of Max cluster from all 6 planes
Double_t fAlpha; // rotation angle
Double_t fX; // running local X-coordinate of the track (time bin)
+ Bool_t fStopped; // track stop indication
- Double_t fY; // Y-coordinate of the track
- Double_t fZ; // Z-coordinate of the track
- Double_t fC; // track curvature
- Double_t fE; // C*x0
- Double_t fT; // tangent of the track dip angle
+ Double_t fY; // Y-coordinate of the track
+ Double_t fZ; // Z-coordinate of the track
+ Double_t fE; // C*x0
+ Double_t fT; // tangent of the track momentum dip angle
+ Double_t fC; // track curvature
Double_t fCyy; // covariance
Double_t fCzy, fCzz; // matrix
- Double_t fCcy, fCcz, fCcc; // of the
- Double_t fCey, fCez, fCec, fCee; // track
- Double_t fCty, fCtz, fCtc, fCte, fCtt; // parameters
-
+ Double_t fCey, fCez, fCee; // of the
+ Double_t fCty, fCtz, fCte, fCtt; // track
+ Double_t fCcy, fCcz, fCce, fCct, fCcc; // parameters
+
UInt_t fIndex[kMAX_CLUSTERS_PER_TRACK]; // global indexes of clusters
+ UInt_t fIndexBackup[kMAX_CLUSTERS_PER_TRACK]; //backup indexes of clusters - used in iterations
Float_t fdQdl[kMAX_CLUSTERS_PER_TRACK]; // cluster amplitudes corrected
// for track angles
-
+
Float_t fLhElectron; // Likelihood to be an electron
-
- ClassDef(AliTRDtrack,2) // TRD reconstructed tracks
-
+ Int_t fNWrong; // number of wrong clusters
+ Int_t fNRotate; // number of rotation
+ Int_t fNCross; // number of the cross materials
+ Int_t fNExpected; //expected number of cluster
+ Int_t fNLast; //number of clusters in last 2 layers
+ Int_t fNExpectedLast; //number of expected clusters on last 2 layers
+ Int_t fNdedx; //number of clusters for dEdx measurment
+ Float_t fChi2Last; //chi2 in the last 2 layers
+ AliTRDtracklet fTracklets[6]; //tracklets
+ Float_t fBudget[3]; // integrated material budget
+ AliTRDtrack * fBackupTrack; //! backup track
+ ClassDef(AliTRDtrack,3) // TRD reconstructed tracks
};
+inline void AliTRDtrack::GetXYZ(Float_t r[3]) const {
+ //---------------------------------------------------------------------
+ // Returns the position of the track in the global coord. system
+ //---------------------------------------------------------------------
+ Double_t cs=TMath::Cos(fAlpha), sn=TMath::Sin(fAlpha);
+ r[0]=fX*cs - fY*sn; r[1]=fX*sn + fY*cs; r[2]=fZ;
+}
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff