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1 | #ifndef ALIITSSEGMENTATIONSSD_H | |
2 | #define ALIITSSEGMENTATIONSSD_H | |
3 | ||
4 | #include "AliITSsegmentation.h" | |
5 | ||
6 | // segmentation for SSD | |
7 | ||
8 | /* $Id$ */ | |
9 | ||
10 | class AliITSsegmentationSSD : | |
11 | public AliITSsegmentation { | |
12 | public: | |
13 | ||
14 | AliITSsegmentationSSD(Option_t *opt=""); | |
15 | AliITSsegmentationSSD(const AliITSsegmentationSSD &source); | |
16 | virtual ~AliITSsegmentationSSD(){} | |
17 | AliITSsegmentationSSD& operator=(const AliITSsegmentationSSD &source); | |
18 | ||
19 | ||
20 | // Strip size | |
21 | virtual void SetPadSize(Float_t pitch,Float_t /* d */) | |
22 | {fPitch=pitch;} | |
23 | ||
24 | // Maximum number of strips along the two coordinates | |
25 | virtual void SetNPads(Int_t p1,Int_t /* d */){fNstrips=p1;} | |
26 | // Returns the maximum number of cells (digits) posible | |
27 | virtual Int_t GetNPads() const {return 2*fNstrips;} | |
28 | ||
29 | ||
30 | // Set stereo angles Pside-Nside | |
31 | virtual void SetAngles(Float_t pa=0.0075, Float_t na=0.0275) | |
32 | {fStereoP=pa; fStereoN=na;} | |
33 | ||
34 | // Set stereo angles Pside-Nside | |
35 | // Transform from real coordinates to strips | |
36 | virtual void GetPadIxz(Float_t x ,Float_t z ,Int_t &iP,Int_t &iN) const; | |
37 | // Transform from strips to real coordinates | |
38 | void GetPadCxz(Float_t iP, Float_t iN, Float_t &x , Float_t &z) const; | |
39 | virtual void GetPadCxz(Int_t iP, Int_t iN, Float_t &x , Float_t &z) const { GetPadCxz((Float_t) iP, (Float_t) iN, x, z); } | |
40 | virtual void GetPadTxz(Float_t &x , Float_t &z) const; | |
41 | // Transformation from Geant cm detector center local coordinates | |
42 | // to detector P and N side strip numbers.. | |
43 | virtual Bool_t LocalToDet(Float_t x,Float_t z,Int_t &iP,Int_t &iN) const; | |
44 | // Transformation from detector segmentation/cell coordiantes starting | |
45 | // from 0. iPN=0 for P side and 1 for N side strip. Returned is z=0.0 | |
46 | // and the corresponding x value.. | |
47 | virtual void DetToLocal(Int_t ix,Int_t iPN,Float_t &x,Float_t &z) const; | |
48 | ||
49 | virtual Int_t GetNumberOfChips() const { | |
50 | return fgkNchipsPerSide; | |
51 | } | |
52 | virtual Int_t GetMaximumChipIndex() const{ | |
53 | return fgkNchipsPerSide*2-1; | |
54 | } | |
55 | virtual Int_t GetChipFromLocal(Float_t xloc, Float_t zloc) const; | |
56 | virtual Int_t GetChipFromChannel(Int_t ix, Int_t iz) const; | |
57 | virtual Int_t GetChipsInLocalWindow(Int_t* array, Float_t zmin, Float_t zmax, Float_t xmin, Float_t xmax) const; | |
58 | ||
59 | virtual void Init(); | |
60 | ||
61 | // Strip size in x | |
62 | virtual Float_t Dpx(Int_t) const {return fPitch;} | |
63 | // Strip size in z | |
64 | virtual Float_t Dpz(Int_t) const {return fDz;} | |
65 | // Maximum number of Strips in x | |
66 | virtual Int_t Npx() const {return fNstrips;} | |
67 | // Maximum number of Strips in z | |
68 | virtual Int_t Npz()const {return 1;} | |
69 | ||
70 | // Angles : Pside stereo angle-Nside stereo angle | |
71 | virtual void Angles(Float_t &aP,Float_t &aN) const; | |
72 | virtual void SetLayer(Int_t l); | |
73 | virtual Int_t GetLayer() const {return fLayer;} | |
74 | // Print Default parameters | |
75 | virtual void PrintDefaultParameters() const; | |
76 | ||
77 | protected: | |
78 | ||
79 | virtual void Copy(TObject &obj) const; | |
80 | ||
81 | Int_t fNstrips; // Number of strips in x | |
82 | Float_t fStereoP; // Stereo angle for Pside (rad) | |
83 | Float_t fStereoN; // Stereo angle for Nside (rad) | |
84 | Float_t fPitch; // Pitch of the strips | |
85 | ||
86 | Int_t fLayer; //! layer number (5 or 6) | |
87 | static const Float_t fgkDxDefault; // Default value for fDx | |
88 | static const Float_t fgkDzDefault; // Default value for fDz | |
89 | static const Float_t fgkDyDefault; // Default value for fDy | |
90 | static const Float_t fgkPitchDefault; //Default value for fPitch | |
91 | static const Int_t fgkNstripsDefault; //Default value for fNstrips | |
92 | static const Int_t fgkNchipsPerSide; //number of chips per side | |
93 | static const Int_t fgkNstripsPerChip; //number of strips per chip | |
94 | ||
95 | ClassDef(AliITSsegmentationSSD,4) //Segmentation class for SSD | |
96 | }; | |
97 | ||
98 | #endif |