]>
Commit | Line | Data |
---|---|---|
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 | |
11 | // | |
12 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
13 | //------------------------------------------------------------------------- | |
14 | ||
15 | #include <TObject.h> | |
c5507f6d | 16 | #include <TVector3.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;} | |
27 | ||
28 | Bool_t IsSortable() const {return kTRUE;} | |
29 | Int_t GetLabel() const {return fLab;} | |
30 | Double_t GetChi2() const {return fChi2;} | |
7f6ddf58 | 31 | Double_t GetMass() const {return fMass;} |
be9c5115 | 32 | Int_t GetNumberOfClusters() const {return fN;} |
e2afb3b6 | 33 | virtual Int_t GetClusterIndex(Int_t) const { //reserved for AliTracker |
34 | Warning("GetClusterIndex(Int_t)","Method must be overloaded !\n"); | |
be9c5115 | 35 | return 0; |
36 | } | |
37 | ||
49a7a79a | 38 | virtual Double_t GetDCA(const AliKalmanTrack *,Double_t &,Double_t &) const; |
39 | virtual | |
40 | Double_t PropagateToDCA(AliKalmanTrack *, Double_t d=0., Double_t x0=0.); | |
41 | virtual Double_t GetAlpha() const { | |
42 | Warning("GetAlpha()","Method must be overloaded !\n"); | |
43 | return 0.; | |
44 | } | |
45 | virtual Double_t GetSigmaY2() const { | |
46 | Warning("GetSigmaY2()","Method must be overloaded !\n"); | |
47 | return 0.; | |
48 | } | |
49 | virtual Double_t GetSigmaZ2() const { | |
50 | Warning("GetSigmaZ2()","Method must be overloaded !\n"); | |
51 | return 0.; | |
52 | } | |
53 | ||
e2afb3b6 | 54 | virtual Int_t Compare(const TObject *) const {return 0;} |
be9c5115 | 55 | |
e2afb3b6 | 56 | virtual void GetExternalParameters(Double_t &/*xr*/, Double_t /*x*/[5]) const {} |
57 | virtual void GetExternalCovariance(Double_t /*cov*/[15]) const {} | |
be9c5115 | 58 | |
c5507f6d | 59 | virtual Double_t GetX() const; |
60 | virtual Double_t GetdEdx() const; | |
61 | ||
62 | virtual Double_t GetY() const; | |
63 | virtual Double_t GetZ() const; | |
64 | virtual Double_t GetSnp() const; | |
65 | virtual Double_t GetTgl() const; | |
66 | virtual Double_t Get1Pt() const; | |
67 | ||
68 | virtual Double_t Phi() const; | |
69 | virtual Double_t SigmaPhi() const; | |
70 | virtual Double_t Theta() const; | |
71 | virtual Double_t SigmaTheta() const; | |
72 | virtual Double_t Px() const; | |
73 | virtual Double_t Py() const; | |
74 | virtual Double_t Pz() const; | |
75 | virtual Double_t Pt() const; | |
76 | virtual Double_t SigmaPt() const; | |
77 | virtual Double_t P() const; | |
78 | virtual TVector3 Momentum() const; | |
79 | ||
e2afb3b6 | 80 | virtual Double_t GetPredictedChi2(const AliCluster *) const {return 0.;} |
be9c5115 | 81 | virtual |
e2afb3b6 | 82 | Int_t PropagateTo(Double_t /*xr*/, Double_t /*x0*/, Double_t /*rho*/) {return 0;} |
83 | virtual Int_t Update(const AliCluster*, Double_t /*chi2*/, UInt_t) {return 0;} | |
be9c5115 | 84 | |
116cbefd | 85 | static void SetConvConst(Double_t cc) {fgConvConst=cc;} |
86 | Double_t GetConvConst() const {return fgConvConst;} | |
9b280d80 | 87 | |
e1a65e92 | 88 | static void SetMagneticField(Double_t f) {// f - Magnetic field in T |
116cbefd | 89 | fgConvConst=100/0.299792458/f; |
e1a65e92 | 90 | } |
116cbefd | 91 | Double_t GetMagneticField() const {return 100/0.299792458/fgConvConst;} |
e1a65e92 | 92 | |
49a7a79a | 93 | // Time integration (S.Radomski@gsi.de) |
74f9526e | 94 | void StartTimeIntegral(); |
95 | Bool_t IsStartedTimeIntegral() const {return fStartTimeIntegral;} | |
96 | void AddTimeStep(Double_t length); | |
97 | Double_t GetIntegratedTime(Int_t pdg) const; | |
98 | Double_t GetIntegratedLength() const {return fIntegratedLength;} | |
99 | void PrintTime() const; | |
100 | ||
101 | ||
be9c5115 | 102 | protected: |
103 | void SetChi2(Double_t chi2) {fChi2=chi2;} | |
7f6ddf58 | 104 | void SetMass(Double_t mass) {fMass=mass;} |
be9c5115 | 105 | void SetNumberOfClusters(Int_t n) {fN=n;} |
106 | ||
107 | private: | |
87594435 | 108 | Int_t fLab; // track label |
87594435 | 109 | Double_t fChi2; // total chi2 value for this track |
7f6ddf58 | 110 | Double_t fMass; // mass hypothesis |
be9c5115 | 111 | Int_t fN; // number of associated clusters |
87594435 | 112 | |
116cbefd | 113 | static Double_t fgConvConst; //conversion constant cm -> GeV/c |
9b280d80 | 114 | |
49a7a79a | 115 | // variables for time integration (S.Radomski@gsi.de) |
5d8718b8 | 116 | static const Int_t fgkTypes = 5; // Number of track types (e,mu,pi,k,p) |
74f9526e | 117 | Bool_t fStartTimeIntegral; // indicator wether integrate time |
118 | Float_t fIntegratedTime[5]; // intgrated time | |
5d8718b8 | 119 | Float_t fIntegratedLength; // integrated length |
74f9526e | 120 | |
121 | ClassDef(AliKalmanTrack,2) // Reconstructed track | |
87594435 | 122 | }; |
123 | ||
124 | #endif | |
125 | ||
126 |