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75bd7f81 | 1 | #ifndef ALITRDSEED_H |
2 | #define ALITRDSEED_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice */ | |
6 | ||
ad670fba | 7 | /* $Id$ */ |
8 | ||
9 | //////////////////////////////////////////////////////////////////////////// | |
10 | // // | |
11 | // The TRD track seed // | |
12 | // // | |
13 | //////////////////////////////////////////////////////////////////////////// | |
14 | ||
75bd7f81 | 15 | #include "TObject.h" |
16 | ||
17 | class AliTRDcluster; | |
18 | ||
19 | class AliTRDseed : public TObject { | |
20 | ||
21 | friend class AliTRDtracker; | |
22 | ||
23 | public: | |
24 | ||
25 | AliTRDseed(); | |
ad670fba | 26 | AliTRDseed(const AliTRDseed &s); |
75bd7f81 | 27 | ~AliTRDseed() {}; |
28 | ||
ad670fba | 29 | AliTRDseed &operator=(const AliTRDseed &/*s*/) { return *this; } |
30 | ||
31 | static void EvaluateUni(Int_t nvectors, Double_t *data, Double_t &mean, Double_t &sigma, Int_t hh); | |
32 | static Float_t FitRiemanTilt(AliTRDseed *seed, Bool_t error); | |
33 | void UseClusters(); | |
34 | void Update(); | |
35 | void CookLabels(); | |
36 | void UpdateUsed(); | |
37 | void Reset(); | |
38 | Bool_t IsOK() const { return fN2 > 8; } | |
75bd7f81 | 39 | |
40 | private: | |
41 | ||
ad670fba | 42 | Float_t fTilt; // Tilting angle |
43 | Float_t fPadLength; // Pad length | |
44 | Float_t fX0; // X0 position | |
45 | Float_t fX[25]; //! X position | |
46 | Float_t fY[25]; //! Y position | |
47 | Float_t fZ[25]; //! Z position | |
48 | Int_t fIndexes[25]; //! Indexes | |
49 | AliTRDcluster *fClusters[25]; //! Clusters | |
50 | Bool_t fUsable[25]; //! Indication - usable cluster | |
51 | Float_t fYref[2]; // Reference y | |
52 | Float_t fZref[2]; // Reference z | |
53 | Float_t fYfit[2]; // Y fit position +derivation | |
54 | Float_t fYfitR[2]; // Y fit position +derivation | |
55 | Float_t fZfit[2]; // Z fit position | |
56 | Float_t fZfitR[2]; // Z fit position | |
57 | Float_t fSigmaY; // "Robust" sigma in Y - constant fit | |
58 | Float_t fSigmaY2; // "Robust" sigma in Y - line fit | |
59 | Float_t fMeanz; // Mean vaue of z | |
60 | Float_t fZProb; // Max probbable z | |
61 | Int_t fLabels[2]; // Labels | |
62 | Int_t fN; // Number of associated clusters | |
63 | Int_t fN2; // Number of not crossed | |
64 | Int_t fNUsed; // Number of used clusters | |
65 | Int_t fFreq; // Frequency | |
66 | Int_t fNChange; // Change z counter | |
67 | Float_t fMPads; // Mean number of pads per cluster | |
68 | ||
69 | Float_t fC; // Curvature | |
70 | Float_t fCC; // Curvature with constrain | |
71 | Float_t fChi2; // Global chi2 | |
72 | Float_t fChi2Z; // Global chi2 | |
73 | ||
74 | ClassDef(AliTRDseed,1) // Seed for a local TRD track | |
75bd7f81 | 75 | |
76 | }; | |
ad670fba | 77 | |
75bd7f81 | 78 | #endif |