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be9c5115 | 1 | #ifndef ALITRACKER_H |
2 | #define ALITRACKER_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
fb17acd4 | 6 | /* $Id$ */ |
7 | ||
be9c5115 | 8 | //------------------------------------------------------------------------- |
9 | // class AliTracker | |
41377c29 | 10 | // that is the base for AliTPCtracker, AliITStrackerV2 and AliTRDtracker |
be9c5115 | 11 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch |
12 | //------------------------------------------------------------------------- | |
1d5fc4ea | 13 | #include <TObject.h> |
7167ae53 | 14 | #include <AliPlaneEff.h> |
be9c5115 | 15 | |
e23a38cb | 16 | class TTree; |
7b5ef2e6 | 17 | class AliMagF; |
be9c5115 | 18 | class AliCluster; |
7d0f8548 | 19 | class AliKalmanTrack; |
af885e0f | 20 | class AliESDEvent; |
48ce48d1 | 21 | class AliESDtrack; |
0c4ea33b | 22 | class AliExternalTrackParam; |
98937d93 | 23 | class AliTrackPoint; |
be9c5115 | 24 | |
1d5fc4ea | 25 | class AliTracker : public TObject { |
be9c5115 | 26 | public: |
3b242889 | 27 | AliTracker(); |
be9c5115 | 28 | virtual ~AliTracker(){} |
af885e0f | 29 | virtual Int_t Clusters2Tracks(AliESDEvent *event)=0; |
30 | virtual Int_t PropagateBack(AliESDEvent *event)=0; | |
31 | virtual Int_t RefitInward(AliESDEvent *event)=0; | |
c4aa7a4c | 32 | virtual Int_t PostProcess(AliESDEvent */*event*/) {return 0;} |
1d5fc4ea | 33 | void SetVertex(const Double_t *xyz, const Double_t *ers=0) { |
34 | fX=xyz[0]; fY=xyz[1]; fZ=xyz[2]; | |
35 | if (ers) { fSigmaX=ers[0]; fSigmaY=ers[1]; fSigmaZ=ers[2]; } | |
36 | } | |
be9c5115 | 37 | |
38 | //protected: | |
c630aafd | 39 | virtual Int_t LoadClusters(TTree *)=0; |
e24ea474 | 40 | virtual void UnloadClusters()=0; |
be9c5115 | 41 | virtual AliCluster *GetCluster(Int_t index) const=0; |
7167ae53 | 42 | virtual AliPlaneEff *GetPlaneEff() {return NULL;} |
1a191ea2 | 43 | virtual Bool_t GetTrackPoint(Int_t /* index */ , AliTrackPoint& /* p */) const { return kFALSE;} |
48ce48d1 | 44 | virtual Bool_t GetTrackPointTrackingError(Int_t /* index */, |
45 | AliTrackPoint& /* p */, const AliESDtrack* /* t */) { return kFALSE;} | |
be9c5115 | 46 | virtual void UseClusters(const AliKalmanTrack *t, Int_t from=0) const; |
47 | virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const; | |
7f6ddf58 | 48 | Double_t GetX() const {return fX;} |
49 | Double_t GetY() const {return fY;} | |
50 | Double_t GetZ() const {return fZ;} | |
1d5fc4ea | 51 | Double_t GetSigmaX() const {return fSigmaX;} |
52 | Double_t GetSigmaY() const {return fSigmaY;} | |
53 | Double_t GetSigmaZ() const {return fSigmaZ;} | |
7f6ddf58 | 54 | |
6e440ee5 | 55 | static |
56 | Double_t MeanMaterialBudget(Double_t *start,Double_t *end,Double_t *mparam); | |
0c4ea33b | 57 | static |
58 | Bool_t PropagateTrackTo(AliExternalTrackParam *track, Double_t x, Double_t m, | |
59 | Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8); | |
6e440ee5 | 60 | |
c84a5e9e | 61 | static void SetFieldMap(const AliMagF* map, Bool_t uni); |
3b242889 | 62 | static const AliMagF *GetFieldMap() {return fgkFieldMap;} |
7b5ef2e6 | 63 | static Double_t GetBz(Float_t *r); |
6c94f330 | 64 | static Double_t GetBz(Double_t *r) { |
65 | Float_t rr[]={r[0],r[1],r[2]}; | |
66 | return GetBz(rr); | |
67 | } | |
7d0f8548 | 68 | static Double_t GetBz() {return fgBz;} |
69 | static Bool_t UniformField() {return fgUniformField;} | |
9c9d2487 | 70 | |
e23a38cb | 71 | static void FillResiduals(const AliExternalTrackParam *t, |
72 | Double_t *p, Double_t *cov, | |
73 | UShort_t id, Bool_t updated=kTRUE); | |
74 | static void SetFillResiduals(Bool_t flag=kTRUE) { fFillResiduals=flag; } | |
75 | static void SetResidualsArray(TObjArray *arr) { fResiduals=arr; } | |
76 | ||
6c94f330 | 77 | protected: |
78 | AliTracker(const AliTracker &atr); | |
7f6ddf58 | 79 | private: |
90e48c0c | 80 | AliTracker & operator=(const AliTracker & atr); |
81 | ||
7d0f8548 | 82 | static Bool_t fgUniformField; // uniform field flag |
e23a38cb | 83 | static const AliMagF *fgkFieldMap; //! field map |
7d0f8548 | 84 | static Double_t fgBz; // Nominal Bz (kG) |
9c9d2487 | 85 | |
e23a38cb | 86 | static Bool_t fFillResiduals; // Fill residuals flag |
87 | static TObjArray *fResiduals; //! Array of histograms with residuals | |
88 | ||
61ab8ea8 | 89 | Double_t fX; //X-coordinate of the primary vertex |
90 | Double_t fY; //Y-coordinate of the primary vertex | |
91 | Double_t fZ; //Z-coordinate of the primary vertex | |
6c94f330 | 92 | |
1d5fc4ea | 93 | Double_t fSigmaX; // error of the primary vertex position in X |
94 | Double_t fSigmaY; // error of the primary vertex position in Y | |
95 | Double_t fSigmaZ; // error of the primary vertex position in Z | |
96 | ||
e23a38cb | 97 | ClassDef(AliTracker,4) //abstract tracker |
be9c5115 | 98 | }; |
99 | ||
100 | #endif | |
101 | ||
102 |