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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 | ||
6 | /* $Id$ */ | |
7 | ||
8 | //------------------------------------------------------------------------- | |
9 | // class AliTracker | |
10 | // that is the base for AliTPCtracker, AliITStrackerV2 and AliTRDtracker | |
11 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
12 | //------------------------------------------------------------------------- | |
13 | #include <TObject.h> | |
14 | #include <AliPlaneEff.h> | |
15 | ||
16 | class TTree; | |
17 | class AliMagF; | |
18 | class AliCluster; | |
19 | class AliKalmanTrack; | |
20 | class AliESDEvent; | |
21 | class AliESDtrack; | |
22 | class AliExternalTrackParam; | |
23 | class AliTrackPoint; | |
24 | ||
25 | class AliTracker : public TObject { | |
26 | public: | |
27 | AliTracker(); | |
28 | virtual ~AliTracker(){} | |
29 | virtual Int_t Clusters2Tracks(AliESDEvent *event)=0; | |
30 | virtual Int_t PropagateBack(AliESDEvent *event)=0; | |
31 | virtual Int_t RefitInward(AliESDEvent *event)=0; | |
32 | virtual Int_t PostProcess(AliESDEvent */*event*/) {return 0;} | |
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 | } | |
37 | ||
38 | //protected: | |
39 | virtual Int_t LoadClusters(TTree *)=0; | |
40 | virtual void UnloadClusters()=0; | |
41 | virtual void FillClusterArray(TObjArray* array) const; | |
42 | virtual AliCluster *GetCluster(Int_t index) const=0; | |
43 | virtual AliPlaneEff *GetPlaneEff() {return NULL;} | |
44 | virtual Bool_t GetTrackPoint(Int_t /* index */ , AliTrackPoint& /* p */) const { return kFALSE;} | |
45 | virtual Bool_t GetTrackPointTrackingError(Int_t /* index */, | |
46 | AliTrackPoint& /* p */, const AliESDtrack* /* t */) { return kFALSE;} | |
47 | virtual void UseClusters(const AliKalmanTrack *t, Int_t from=0) const; | |
48 | virtual void CookLabel(AliKalmanTrack *t,Float_t wrong) const; | |
49 | Double_t GetX() const {return fX;} | |
50 | Double_t GetY() const {return fY;} | |
51 | Double_t GetZ() const {return fZ;} | |
52 | Double_t GetSigmaX() const {return fSigmaX;} | |
53 | Double_t GetSigmaY() const {return fSigmaY;} | |
54 | Double_t GetSigmaZ() const {return fSigmaZ;} | |
55 | ||
56 | static | |
57 | Double_t MeanMaterialBudget(Double_t *start,Double_t *end,Double_t *mparam); | |
58 | static | |
59 | Bool_t PropagateTrackTo(AliExternalTrackParam *track, Double_t x, Double_t m, | |
60 | Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8); | |
61 | ||
62 | static void SetFieldMap(const AliMagF* map, Bool_t uni); | |
63 | static const AliMagF *GetFieldMap() {return fgkFieldMap;} | |
64 | static Double_t GetBz(Float_t *r); | |
65 | static Double_t GetBz(Double_t *r) { | |
66 | Float_t rr[]={r[0],r[1],r[2]}; | |
67 | return GetBz(rr); | |
68 | } | |
69 | static Double_t GetBz() {return fgBz;} | |
70 | static Bool_t UniformField() {return fgUniformField;} | |
71 | ||
72 | static void FillResiduals(const AliExternalTrackParam *t, | |
73 | Double_t *p, Double_t *cov, | |
74 | UShort_t id, Bool_t updated=kTRUE); | |
75 | static void SetFillResiduals(Bool_t flag=kTRUE) { fFillResiduals=flag; } | |
76 | static void SetResidualsArray(TObjArray *arr) { fResiduals=arr; } | |
77 | ||
78 | protected: | |
79 | AliTracker(const AliTracker &atr); | |
80 | private: | |
81 | AliTracker & operator=(const AliTracker & atr); | |
82 | ||
83 | static Bool_t fgUniformField; // uniform field flag | |
84 | static const AliMagF *fgkFieldMap; //! field map | |
85 | static Double_t fgBz; // Nominal Bz (kG) | |
86 | ||
87 | static Bool_t fFillResiduals; // Fill residuals flag | |
88 | static TObjArray *fResiduals; //! Array of histograms with residuals | |
89 | ||
90 | Double_t fX; //X-coordinate of the primary vertex | |
91 | Double_t fY; //Y-coordinate of the primary vertex | |
92 | Double_t fZ; //Z-coordinate of the primary vertex | |
93 | ||
94 | Double_t fSigmaX; // error of the primary vertex position in X | |
95 | Double_t fSigmaY; // error of the primary vertex position in Y | |
96 | Double_t fSigmaZ; // error of the primary vertex position in Z | |
97 | ||
98 | ClassDef(AliTracker,4) //abstract tracker | |
99 | }; | |
100 | ||
101 | #endif | |
102 | ||
103 |