--- /dev/null
+#ifndef ALIITSTRACKV1_H
+#define ALIITSTRACKV1_H
+// ITS Track Class
+//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
+// It contain all the usefull information for the track and the method to calculate, modify or extract them
+#include <TObject.h>
+#include <TMatrix.h>
+#include <TVector.h>
+
+#include "../TPC/AliTPCtrack.h"
+
+class TObjArray;
+class AliITSRad;
+
+class AliITSTrackV1 : public TObject {
+
+public:
+
+ AliITSTrackV1(); // default constructor
+ AliITSTrackV1(AliTPCtrack &obj); // copy constructor
+ AliITSTrackV1(const AliITSTrackV1 &cobj); // copy constructor
+ AliITSTrackV1 &operator=(AliITSTrackV1 obj); // operator =
+ ~AliITSTrackV1(); // default destructor
+ Int_t GetNumClust() const { return fNumClustInTrack;} // gets the num of cluster in a track
+ void AddClustInTrack() { fNumClustInTrack++;} // adds a cluster in track
+ TObjArray *GetListOfCluster() const { return flistCluster;} // gets the list of cluster in the track
+ void SetChi2(Double_t chi2) { fChi2 = chi2;} // sets the chisquare value for the track
+ Double_t GetChi2() const { return fChi2;} // gets the chisquare value for the track
+ Double_t GetZ() const {return fX1;} // gets the Z value for the track
+ Double_t GetTgl() const {return fX3;} // gets the tgl value for the track
+ Double_t Getrtrack() const{return frtrack;} // gets the raius value for the current track
+ Double_t Getphi() const{return fX0;} // gets the phi value for the track
+ Double_t GetC() const {return fX4;} // gets the curvature value for the track
+ Double_t GetD() const{return fX2;} // gets the radial impact parameter for the track
+ Double_t GetPt() const {return 0.299792458*0.2/(fX4*100.);} // gets the transvers momentum value for the
+ //track
+ void SetVertex(TVector &vert) { for(Int_t i=0;i<3;i++) fVertex(i) = vert(i);} // sets the vertex
+ // cohordinates
+ void SetErrorVertex(TVector &evert) {for(Int_t i=0;i<3;i++) fErrorVertex(i) = evert(i);} // sets the errors
+ //for vertex cohordinates
+
+ void LmTPC(); // trasform state vector and covariance matrix from local TPC to master
+ TVector GetVertex() const { return fVertex;}
+ TVector GetErrorVertex() const { return fErrorVertex;}
+ Long_t GetLabel() const { return flabel;}
+ void SetLabel(Long_t label) { flabel = label;}
+ Int_t GetLayer() const { return fLayer;}
+
+
+ void PutCElements(Double_t C00, Double_t C10, Double_t C11, Double_t C20, Double_t C21,
+ Double_t C22, Double_t C30, Double_t C31, Double_t C32, Double_t C33, Double_t C40,
+ Double_t C41, Double_t C42, Double_t C43, Double_t C44); // put elements of covariance matrix
+
+ void GetCElements(Double_t &C00, Double_t &C10, Double_t &C11, Double_t &C20, Double_t &C21,
+ Double_t &C22, Double_t &C30, Double_t &C31, Double_t &C32, Double_t &C33, Double_t &C40,
+ Double_t &C41, Double_t &C42, Double_t &C43, Double_t &C44) const; // get elements of covariance matrix
+
+ void GetXElements(Double_t &X0, Double_t &X1, Double_t &X2, Double_t &X3, Double_t &X4) const; // get elements
+ // of state vector
+ void PutXElements(Double_t X0, Double_t X1, Double_t X2, Double_t X3, Double_t X4); // put elements
+ // of state vector
+
+ void SetLayer(Int_t layer) { fLayer = layer;} // set current layer
+ AliTPCtrack *GetTPCtrack() const { return fTPCtrack;} // get hte TPC track
+
+ void PutCluster(Int_t layerc, TVector vecclust); // put information for clusters
+ TVector GetLabTrack(Int_t lay); // get the label of the track
+ void Search(TVector VecTotLabref, Long_t &labref, Int_t &freq); // determine the label and the frequency of
+ // it for the current track
+ Float_t GetZclusterTrack(Int_t lay) {return ((Float_t) (*fClusterInTrack)(lay,2));} // get the Z
+ //cohordinate of the cluster gelonging to the track for a given layer
+ void GetClusters(); // prints the clusters belonging to the current track
+ Int_t GetLabTPC() const {return (*fTPCtrack).GetLabel();} // get the TPC label for the current track
+ Int_t GetIdPoint(Int_t lay) {return ((Int_t) (*fClusterInTrack)(lay,4));} // get the label identifiing the
+ //point of the track
+ Int_t GetIdModule(Int_t lay) {return ((Int_t) (*fClusterInTrack)(lay,5));} // get the label identifiing the
+ // module of the track
+ Float_t GetIdParticle(Int_t lay) {return (*fClusterInTrack)(lay,3);} // get the label to identify
+ // the particle
+ Int_t DoNotCross(Double_t rk) const; // determine if the track cross a layer
+ Double_t ArgA(Double_t rk) const; // quantity usefull in propagation
+ Double_t Arga(Double_t rk) const; // quantity usefull in propagation
+ Double_t ArgB(Double_t rk) const; // quantity usefull in propagation
+ Double_t ArgC(Double_t rk) const; // quantity usefull in propagation
+ void Propagation(Double_t rk) ; // propagation of the track to a layer of radius rk
+
+ Double_t GetSigmaphi() const{return fC00;} // gets the phi variance
+ Double_t GetSigmaZ() const{return fC11;} // gets the Z variance
+ void AddEL(AliITSRad *rl,Double_t signdE, Bool_t flagtot, Double_t mass=0.1396); // adds the energy loss
+ void AddMS(AliITSRad *rl); // modify the covariance matrix to take into account the multiple scattering
+ void Correct(Double_t rk); // correct the track to take into account the real detector geometry
+ void SetDv(Double_t x) {fDv=x;} // sets the radial impact parameter for vertex constraint
+ void SetZv(Double_t x) {fZv=x;} // sets longitudinal impact parameter for vertex constraint
+ Double_t GetDv() const {return fDv;} // gets the radial impact parameter for vertex constraint
+ Double_t GetZv() const {return fZv;} // gets longitudinal impact parameter for vertex constraint
+ void SetsigmaDv( Double_t x) {fsigmaDv=x;} // sets sigma for Dv extraction
+ void SetsigmaZv( Double_t x) {fsigmaZv=x;} // sets sigma for Zv extraction
+ Double_t GetsigmaDv() const {return fsigmaDv;} // gets sigma for Dv extraction
+ Double_t GetsigmaZv() const {return fsigmaZv;} // gets sigma for Zv extraction
+ void PrimaryTrack(AliITSRad *rl); // calculation of part of covariance matrix for vertex constraint
+ void Setd2(TVector &x) {for(Int_t i=0; i<6; i++){fd2(i)=x(i);}} // sets the vector fd2
+ void Settgl2(TVector &x) {for(Int_t i=0; i<6; i++){ftgl2(i)=x(i);}} // sets the vector ftgl2
+ void Setdtgl(TVector &x) {for(Int_t i=0; i<6; i++){fdtgl(i)=x(i);}} // sets the vector fdtgl
+ TVector Getd2() const { return fd2;} // gets the vector fd2
+ TVector Gettgl2() const { return ftgl2;} // gets the vector ftgl2
+ TVector Getdtgl() const { return fdtgl;} // gets the vectoe dtgl
+ Double_t Getd2(Int_t i){return (Double_t)fd2(i);} // gets the i element of the vector fd2
+ Double_t Gettgl2(Int_t i){return (Double_t)ftgl2(i);} // gets the i element of the vector tgl2
+ Double_t Getdtgl(Int_t i){return (Double_t)fdtgl(i);} // gets the i element of the vector fdtgl
+ Double_t GetxoTPC() const {return fxoTPC;} // gets fxoTPC
+
+
+////////////////////////////////////////////////////////////////////////////////////////
+
+ private:
+
+ AliTPCtrack *fTPCtrack; // reference to TPC track
+
+ Double_t fX0,fX1,fX2,fX3,fX4; // state vector: |phi/z/D/tgl/C
+ Double_t frtrack; // radius of courrent layer
+
+ Double_t fC00, fC10, fC11, // Covariance Matrix
+ fC20, fC21, fC22, // " "
+ fC30, fC31, fC32, // " "
+ fC33, fC40, fC41, // " "
+ fC42, fC43, fC44; // " "
+
+ Double_t fChi2; // fChi^2 of track
+ TObjArray *flistCluster; // list of clusters of the track
+ Int_t fNumClustInTrack; // total number of clusters
+ Long_t flabel; // label of the track
+ TVector fVertex; // vertex coordinates of the track
+ TVector fErrorVertex; // error on the vertex coordinates
+ Int_t fLayer; // current Layer of the track
+ TMatrix *fClusterInTrack; // matrix of clusters belonging to the track
+ // row index = layer-1;
+ // cols index = master coordinates of the clusters
+
+
+ Double_t fDv; // radial impact parameter for vertex constraint
+ Double_t fZv; // longitudinal impact parameter for vertex constraint
+ Double_t fsigmaDv; // sigma for Dv extraction
+ Double_t fsigmaZv; // sigma for Zv extraction
+ TVector fd2; // C(2,2) for primary track
+ TVector ftgl2; // C(3,3) for primary track
+ TVector fdtgl; // C(2,3) for primary track
+
+ Double_t fxoTPC; // cohordinate xo of the helix center, got from the TPC track
+
+ // Int_t freq; //provvisorio
+
+
+ ClassDef(AliITSTrackV1, 1)
+
+};
+
+#endif
+
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