]>
Commit | Line | Data |
---|---|---|
52c19022 | 1 | #ifndef ALITRDGTUPARAM_H |
2 | #define ALITRDGTUPARAM_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id: AliTRDgtuParam.h 27496 2008-07-22 08:35:45Z cblume $ */ | |
7 | ||
8 | // -------------------------------------------------------- | |
9 | // | |
10 | // Singleton class to hold the parameters steering the GTU | |
11 | // tracking | |
12 | // | |
13 | // -------------------------------------------------------- | |
14 | ||
15 | #include "TObject.h" | |
52c19022 | 16 | |
17 | class AliTRDgeometry; | |
18 | ||
19 | class AliTRDgtuParam : public TObject { | |
20 | public: | |
21 | virtual ~AliTRDgtuParam(); | |
22 | ||
23 | static AliTRDgtuParam *Instance(); // Singleton | |
24 | static void Terminate(); | |
25 | ||
36dc3337 | 26 | static Int_t GetNLinks() { return fgkNLinks; } |
27 | static Int_t GetNLayers() { return fgkNLinks/2; } | |
28 | static Int_t GetNZChannels() { return fgkNZChannels; } | |
29 | static Int_t GetNRefLayers() { return fgkNRefLayers; } | |
52c19022 | 30 | |
36dc3337 | 31 | static Float_t GetChamberThickness() { return 3.0; } |
52c19022 | 32 | |
33 | // ----- Bin widths (granularity) ----- | |
36dc3337 | 34 | static Float_t GetBinWidthY() { return fgkBinWidthY; } |
35 | static Float_t GetBinWidthdY() { return fgkBinWidthdY; } | |
52c19022 | 36 | |
37 | // ----- Bit Widths (used for internal representation) ----- | |
36dc3337 | 38 | static Int_t GetBitWidthY() { return fgkBitWidthY; } |
39 | static Int_t GetBitWidthdY() { return fgkBitWidthdY; } | |
40 | static Int_t GetBitWidthYProj() { return fgkBitWidthYProj; } | |
41 | static Int_t GetBitExcessY() { return fgkBitExcessY; } | |
42 | static Int_t GetBitExcessAlpha() { return fgkBitExcessAlpha; } | |
43 | static Int_t GetBitExcessYProj() { return fgkBitExcessYProj; } | |
52c19022 | 44 | |
45 | AliTRDgeometry* GetGeo() const { return fGeo; } | |
46 | Float_t GetVertexSize() const { return fVertexSize; } | |
47 | Int_t GetCiAlpha(Int_t layer) const; | |
48 | Int_t GetCiYProj(Int_t layer) const; | |
49 | Int_t GetYt(Int_t stack, Int_t layer, Int_t zrow) const; | |
50 | Int_t GetDeltaY() const { return fgkDeltaY; } | |
51 | Int_t GetDeltaAlpha() const { return fgkDeltaAlpha; } | |
52 | Int_t GetZSubchannel(Int_t stack, Int_t layer, Int_t zchannel, Int_t zpos) const; | |
53 | Int_t GetRefLayer(Int_t refLayerIdx) const; | |
54 | // Bool_t GetFitParams(TVectorD &rhs, Int_t k); // const | |
55 | Bool_t GetIntersectionPoints(Int_t k, Float_t &x1, Float_t &x2); // const | |
b491d23b | 56 | Float_t GetPt(Int_t a, Float_t b, Float_t x1, Float_t x2) const; |
52c19022 | 57 | |
58 | Bool_t IsInZChannel(Int_t stack, Int_t layer, Int_t zchannel, Int_t zpos) const; | |
59 | ||
60 | void SetVertexSize(Float_t vertexsize) { fVertexSize = vertexsize; } | |
61 | ||
62 | // z-channel map | |
36dc3337 | 63 | Int_t GenerateZChannelMap(); // could have different modes (for beam-beam, cosmics, ...) |
52c19022 | 64 | Bool_t DisplayZChannelMap(Int_t zchannel = -1, Int_t subch = 0) const; |
65 | ||
66 | // variables for pt-reconstruction (not used at the moment) | |
67 | Bool_t GenerateRecoCoefficients(Int_t trackletMask); | |
68 | Float_t GetAki(Int_t k, Int_t i); | |
69 | Float_t GetBki(Int_t k, Int_t i); | |
70 | Float_t GetCki(Int_t k, Int_t i); | |
71 | // Float_t GetD(Int_t k) const; | |
72 | ||
b491d23b | 73 | // B-field |
74 | void SetMagField(Float_t field) { fMagField = field; } | |
75 | Float_t GetMagField() const { return fMagField; } | |
76 | ||
52c19022 | 77 | protected: |
78 | static const Int_t fgkNZChannels = 3; // No. of z-channels | |
79 | static const Int_t fgkNLinks = 12; // No. of links | |
80 | static const Int_t fgkFixLayer = 2; // which layer is fixed for the generation of the z-channel map | |
80f93426 | 81 | static const Int_t fgkDeltaY = 19; // accepted deviation in y_proj, default: 9 |
82 | static const Int_t fgkDeltaAlpha = 21; // accepted deviation in alpha, default: 11 | |
52c19022 | 83 | static const Int_t fgkNRefLayers = 3; // no. of reference layers |
84 | ||
4cc89512 | 85 | static const Float_t fgkBinWidthY; // bin width for y-position |
86 | static const Float_t fgkBinWidthdY; // bin width for deflection length | |
87 | ||
88 | static const Int_t fgkBitWidthY; // bit width for y-position | |
89 | static const Int_t fgkBitWidthdY; // bit width for deflection length | |
90 | static const Int_t fgkBitWidthYProj; // bit width for projected y-position | |
91 | static const Int_t fgkBitExcessY; // excess bits for y-position | |
92 | static const Int_t fgkBitExcessAlpha; // excess bits for alpha | |
93 | static const Int_t fgkBitExcessYProj; // excess bits for projected y-position | |
52c19022 | 94 | |
95 | Float_t fVertexSize; // assumed vertex size (z-dir.) for the z-channel map | |
96 | ||
97 | Int_t fZChannelMap[5][16][6][16]; // must be changed | |
98 | Int_t fZSubChannel[5][fgkNZChannels][6][16]; // must be changed | |
99 | ||
4cc89512 | 100 | Int_t fCurrTrackletMask; // current tracklet mask for which the coefficients have been calculated |
101 | Float_t fAki[6]; // coefficients used for the fit, calculated for the current tracklet mask | |
102 | Float_t fBki[6]; // coefficients used for the fit, calculated for the current tracklet mask | |
103 | Float_t fCki[6]; // coefficients used for the fit, calculated for the current tracklet mask | |
52c19022 | 104 | |
105 | Int_t *fRefLayers; //[fgkNRefLayers] reference layers for track finding | |
106 | ||
b491d23b | 107 | Float_t fMagField; // magnetic field in T |
108 | ||
52c19022 | 109 | AliTRDgeometry *fGeo; //! pointer to the TRD geometry |
110 | ||
111 | static AliTRDgtuParam *fgInstance; // instance pointer | |
112 | ||
113 | private: | |
114 | AliTRDgtuParam(); // instance only via Instance() | |
115 | AliTRDgtuParam(const AliTRDgtuParam &rhs); // not implemented | |
116 | AliTRDgtuParam& operator=(const AliTRDgtuParam &rhs); // not implemented | |
117 | ||
118 | ClassDef(AliTRDgtuParam, 1); | |
119 | }; | |
120 | ||
121 | #endif |