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87594435 | 1 | #ifndef ALIKALMANTRACK_H |
2 | #define ALIKALMANTRACK_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice */ | |
6 | ||
fb17acd4 | 7 | /* $Id$ */ |
8 | ||
87594435 | 9 | //------------------------------------------------------------------------- |
10 | // Class AliKalmanTrack | |
9b859005 | 11 | // fixed the interface for the derived reconstructed track classes |
12 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
87594435 | 13 | //------------------------------------------------------------------------- |
14 | ||
15 | #include <TObject.h> | |
304864ab | 16 | #include "AliPID.h" |
87594435 | 17 | |
18 | class AliCluster; | |
19 | ||
20 | class AliKalmanTrack : public TObject { | |
21 | public: | |
e2afb3b6 | 22 | AliKalmanTrack(); |
23 | AliKalmanTrack(const AliKalmanTrack &t); | |
24 | ||
be9c5115 | 25 | virtual ~AliKalmanTrack(){}; |
26 | void SetLabel(Int_t lab) {fLab=lab;} | |
babd135a | 27 | void SetFakeRatio(Float_t ratio) {fFakeRatio=ratio;} |
be9c5115 | 28 | |
29 | Bool_t IsSortable() const {return kTRUE;} | |
30 | Int_t GetLabel() const {return fLab;} | |
babd135a | 31 | Float_t GetFakeRatio() const {return fFakeRatio;} |
be9c5115 | 32 | Double_t GetChi2() const {return fChi2;} |
7f6ddf58 | 33 | Double_t GetMass() const {return fMass;} |
be9c5115 | 34 | Int_t GetNumberOfClusters() const {return fN;} |
e2afb3b6 | 35 | virtual Int_t GetClusterIndex(Int_t) const { //reserved for AliTracker |
36 | Warning("GetClusterIndex(Int_t)","Method must be overloaded !\n"); | |
be9c5115 | 37 | return 0; |
38 | } | |
ae982df3 | 39 | virtual Double_t GetPIDsignal() const { |
40 | Warning("GetPIDsignal()","Method must be overloaded !\n"); | |
41 | return 0.; | |
42 | } | |
be9c5115 | 43 | |
fc7be9e3 | 44 | virtual Double_t GetDCA(const AliKalmanTrack *p,Double_t &xthis,Double_t &xp) const; |
49a7a79a | 45 | virtual |
fc7be9e3 | 46 | Double_t PropagateToDCA(AliKalmanTrack *p, Double_t d=0., Double_t x0=0.); |
49a7a79a | 47 | virtual Double_t GetAlpha() const { |
48 | Warning("GetAlpha()","Method must be overloaded !\n"); | |
49 | return 0.; | |
50 | } | |
51 | virtual Double_t GetSigmaY2() const { | |
52 | Warning("GetSigmaY2()","Method must be overloaded !\n"); | |
53 | return 0.; | |
54 | } | |
55 | virtual Double_t GetSigmaZ2() const { | |
56 | Warning("GetSigmaZ2()","Method must be overloaded !\n"); | |
57 | return 0.; | |
58 | } | |
59 | ||
e2afb3b6 | 60 | virtual Int_t Compare(const TObject *) const {return 0;} |
be9c5115 | 61 | |
e2afb3b6 | 62 | virtual void GetExternalParameters(Double_t &/*xr*/, Double_t /*x*/[5]) const {} |
63 | virtual void GetExternalCovariance(Double_t /*cov*/[15]) const {} | |
be9c5115 | 64 | |
e2afb3b6 | 65 | virtual Double_t GetPredictedChi2(const AliCluster *) const {return 0.;} |
9b859005 | 66 | virtual Int_t |
67 | PropagateTo(Double_t /*xr*/, Double_t /*x0*/, Double_t /*rho*/) {return 0;} | |
8f29bd5c | 68 | virtual Int_t PropagateToVertex(Double_t /*d*/=0., Double_t /*x0*/=0.) |
69 | {return 0;} | |
9b859005 | 70 | virtual Int_t |
71 | Update(const AliCluster*, Double_t /*chi2*/, UInt_t) {return 0;} | |
be9c5115 | 72 | |
116cbefd | 73 | static void SetConvConst(Double_t cc) {fgConvConst=cc;} |
e23730c7 | 74 | static Double_t GetConvConst() {return fgConvConst;} |
9b280d80 | 75 | |
e1a65e92 | 76 | static void SetMagneticField(Double_t f) {// f - Magnetic field in T |
116cbefd | 77 | fgConvConst=100/0.299792458/f; |
e1a65e92 | 78 | } |
116cbefd | 79 | Double_t GetMagneticField() const {return 100/0.299792458/fgConvConst;} |
e1a65e92 | 80 | |
49a7a79a | 81 | // Time integration (S.Radomski@gsi.de) |
74f9526e | 82 | void StartTimeIntegral(); |
ae982df3 | 83 | void SetIntegratedLength(Double_t l) {fIntegratedLength=l;} |
84 | void SetIntegratedTimes(const Double_t *times); | |
85 | ||
74f9526e | 86 | Bool_t IsStartedTimeIntegral() const {return fStartTimeIntegral;} |
87 | void AddTimeStep(Double_t length); | |
ae982df3 | 88 | void GetIntegratedTimes(Double_t *times) const; |
74f9526e | 89 | Double_t GetIntegratedTime(Int_t pdg) const; |
90 | Double_t GetIntegratedLength() const {return fIntegratedLength;} | |
91 | void PrintTime() const; | |
4095d1ca | 92 | |
be9c5115 | 93 | protected: |
94 | void SetChi2(Double_t chi2) {fChi2=chi2;} | |
7f6ddf58 | 95 | void SetMass(Double_t mass) {fMass=mass;} |
be9c5115 | 96 | void SetNumberOfClusters(Int_t n) {fN=n;} |
97 | ||
87594435 | 98 | Int_t fLab; // track label |
babd135a | 99 | Float_t fFakeRatio; // fake ratio |
87594435 | 100 | Double_t fChi2; // total chi2 value for this track |
7f6ddf58 | 101 | Double_t fMass; // mass hypothesis |
be9c5115 | 102 | Int_t fN; // number of associated clusters |
a0ff5a14 | 103 | private: |
116cbefd | 104 | static Double_t fgConvConst; //conversion constant cm -> GeV/c |
9b280d80 | 105 | |
49a7a79a | 106 | // variables for time integration (S.Radomski@gsi.de) |
74f9526e | 107 | Bool_t fStartTimeIntegral; // indicator wether integrate time |
304864ab | 108 | Double_t fIntegratedTime[AliPID::kSPECIES]; // integrated time |
9c75d176 | 109 | Double_t fIntegratedLength; // integrated length |
74f9526e | 110 | |
babd135a | 111 | ClassDef(AliKalmanTrack,3) // Reconstructed track |
87594435 | 112 | }; |
113 | ||
114 | #endif | |
115 | ||
116 |