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1 | #ifndef ALITRDSEEDV1_H | |
2 | #define ALITRDSEEDV1_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 | // // | |
10 | // The TRD track seed // | |
11 | // // | |
12 | //////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #ifndef ALITRDSEED_H | |
15 | #include "AliTRDseed.h" | |
16 | #endif | |
17 | ||
18 | #ifndef ALIPID_H | |
19 | #include "AliPID.h" | |
20 | #endif | |
21 | ||
22 | #ifndef ALIRIEMAN_H | |
23 | #include "AliRieman.h" | |
24 | #endif | |
25 | ||
26 | class TTreeSRedirector; | |
27 | ||
28 | class AliRieman; | |
29 | ||
30 | class AliTRDtrackingChamber; | |
31 | class AliTRDcluster; | |
32 | class AliTRDtrack; | |
33 | class AliTRDseedV1 : public AliTRDseed | |
34 | { | |
35 | ||
36 | public: | |
37 | ||
38 | enum { | |
39 | knSlices = 10 | |
40 | }; | |
41 | ||
42 | AliTRDseedV1(Int_t plane = -1); | |
43 | ~AliTRDseedV1(); | |
44 | AliTRDseedV1(const AliTRDseedV1 &ref); | |
45 | AliTRDseedV1& operator=(const AliTRDseedV1 &ref); | |
46 | ||
47 | Bool_t AttachClustersIter(AliTRDtrackingChamber *chamber, Float_t quality, Bool_t kZcorr = kFALSE | |
48 | , AliTRDcluster *c=0x0); | |
49 | Bool_t AttachClusters(AliTRDtrackingChamber *chamber, Bool_t kZcorr = kFALSE); | |
50 | void CookdEdx(Int_t nslices); | |
51 | void Draw(Option_t* o = ""); | |
52 | Bool_t Fit(); | |
53 | ||
54 | Bool_t Init(AliTRDtrack *track); | |
55 | inline void Init(const AliRieman *fit); | |
56 | Bool_t IsOwner() const { return TestBit(1);} | |
57 | Bool_t IsRowCross() const { return TestBit(2);} | |
58 | ||
59 | inline Float_t GetChi2Z(const Float_t z = 999.) const; | |
60 | inline Float_t GetChi2Y(const Float_t y = 999.) const; | |
61 | void GetCovAt(Double_t x, Double_t *cov) const; | |
62 | Double_t* GetCrossXYZ() { return &fCross[0];} | |
63 | Double_t GetCrossSz2() const { return fCross[3];} | |
64 | Float_t* GetdEdx() {return &fdEdx[0];} | |
65 | Float_t GetdQdl(Int_t ic) const; | |
66 | Double_t GetMomentum() const {return fMom;} | |
67 | Int_t GetN() const {return fN2;} | |
68 | Float_t GetQuality(Bool_t kZcorr) const; | |
69 | Int_t GetPlane() const { return fPlane; } | |
70 | Double_t* GetProbability(); | |
71 | Double_t GetSnp() const { return fSnp;} | |
72 | Double_t GetTgl() const { return fTgl;} | |
73 | Double_t GetYat(Double_t x) const { return fYfitR[0] + fYfitR[1] * (x - fX0);} | |
74 | Double_t GetZat(Double_t x) const { return fZfitR[0] + fZfitR[1] * (x - fX0);} | |
75 | ||
76 | void Print(Option_t *o = "") const; | |
77 | ||
78 | void SetMomentum(Double_t mom) {fMom = mom;} | |
79 | void SetOwner(Bool_t own = kTRUE); | |
80 | void SetPlane(Int_t p) { fPlane = p; } | |
81 | void SetSnp(Double_t snp) {fSnp = snp;} | |
82 | void SetTgl(Double_t tgl) {fTgl = tgl;} | |
83 | ||
84 | protected: | |
85 | ||
86 | void Copy(TObject &ref) const; | |
87 | ||
88 | private: | |
89 | ||
90 | Int_t fPlane; // TRD plane | |
91 | Float_t fMom; // Momentum estimate for tracklet [GeV/c] | |
92 | Float_t fSnp; // sin of track with respect to x direction in XY plane | |
93 | Float_t fTgl; // tg of track with respect to x direction in XZ plane | |
94 | Float_t fdX; // length of time bin | |
95 | Float_t fdEdx[knSlices]; // dE/dx measurements for tracklet | |
96 | Double_t fCross[4]; // spatial parameters of the pad row crossing | |
97 | Double_t fProb[AliPID::kSPECIES]; // PID probabilities | |
98 | ||
99 | ClassDef(AliTRDseedV1, 1) // New TRD seed | |
100 | ||
101 | }; | |
102 | ||
103 | //____________________________________________________________ | |
104 | inline Float_t AliTRDseedV1::GetChi2Z(const Float_t z) const | |
105 | { | |
106 | Float_t z1 = (z == 999.) ? fMeanz : z; | |
107 | Float_t chi = fZref[0] - z1; | |
108 | return chi*chi; | |
109 | } | |
110 | ||
111 | //____________________________________________________________ | |
112 | inline Float_t AliTRDseedV1::GetChi2Y(const Float_t y) const | |
113 | { | |
114 | Float_t y1 = (y == 999.) ? fYfitR[0] : y; | |
115 | Float_t chi = fYref[0] - y1; | |
116 | return chi*chi; | |
117 | } | |
118 | ||
119 | //____________________________________________________________ | |
120 | inline void AliTRDseedV1::Init(const AliRieman *rieman) | |
121 | { | |
122 | fZref[0] = rieman->GetZat(fX0); | |
123 | fZref[1] = rieman->GetDZat(fX0); | |
124 | fYref[0] = rieman->GetYat(fX0); | |
125 | fYref[1] = rieman->GetDYat(fX0); | |
126 | } | |
127 | ||
128 | #endif | |
129 | ||
130 |