1 #ifndef ALIITSSEGMENTATIONSDD_H
2 #define ALIITSSEGMENTATIONSDD_H
5 #include "AliITSsegmentation.h"
7 // segmentation for SDD
10 class AliITSsegmentationSDD :
11 public AliITSsegmentation {
15 AliITSsegmentationSDD();
16 AliITSsegmentationSDD(const AliITSsegmentationSDD &source);
17 AliITSsegmentationSDD& operator=(const AliITSsegmentationSDD &source);
18 AliITSsegmentationSDD(AliITSgeom *gm, AliITSresponse *resp);
19 virtual ~AliITSsegmentationSDD(){}
21 // Set Detector Segmentation Parameters
25 virtual void SetPadSize(Float_t pitch, Float_t clock)
26 {fPitch=pitch;fTimeStep=1000./clock;}
28 // Maximum number of cells along the two coordinates z,x (anodes,samples)
29 virtual void SetNPads(Int_t p1, Int_t p2)
30 {fNanodes=2*p1;fNsamples=p2;}
31 // Returns the maximum number of cells (digits) posible
32 virtual Int_t GetNPads() const {return fNanodes*fNsamples;}
34 // Transform from real local to cell coordinates
35 virtual void GetPadIxz(Float_t x ,Float_t z ,Int_t &ix,Int_t &iz) const;
36 // Transform from cell to real local coordinates
37 virtual void GetPadCxz(Int_t ix,Int_t iz,Float_t &x ,Float_t &z ) const;
38 // Transform from real global to local coordinates
39 virtual void GetLocal(Int_t module,Float_t *g ,Float_t *l) const;
40 // Transform from real local to global coordinates
41 virtual void GetGlobal(Int_t module,Float_t *l ,Float_t *g) const;
42 // Get anode and time bucket as floats - numbering from 0
43 virtual void GetPadTxz(Float_t &x ,Float_t &z) const;
44 // Transformation from Geant cm detector center local coordinates
45 // to detector segmentation/cell coordiantes starting from (0,0).
46 virtual Bool_t LocalToDet(Float_t x,Float_t z,Int_t &ix,Int_t &iz) const;
47 // Transformation from detector segmentation/cell coordiantes starting
48 // from (0,0) to Geant cm detector center local coordinates.
49 virtual void DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const;
57 virtual Float_t Dpx(Int_t) const {return fTimeStep;}
59 virtual Float_t Dpz(Int_t) const {return fPitch;}
61 // Maximum number of samples in x
62 virtual Int_t Npx() const {return fNsamples;}
63 // Maximum number of anodes in z
64 virtual Int_t Npz() const {return fNanodes;}
67 // Get next neighbours
68 virtual void Neighbours(Int_t iX,Int_t iZ,Int_t* Nlist,Int_t Xlist[10],
69 Int_t Zlist[10]) const;
71 // Current integration limits
72 virtual void IntegrationLimits(Float_t&,Float_t&,Float_t&,Float_t&) {}
74 virtual void Print(Option_t *opt="") const;
75 // Print default parameters (static const data members, if any)
76 virtual void PrintDefaultParameters() const;
80 virtual void Copy(TObject &obj) const;
82 Int_t fNsamples; // Number of time samples in x
83 Int_t fNanodes; // Summed # of anodes in the two det halves (z)
84 Float_t fPitch; // Anode pitch - microns
85 Float_t fTimeStep; // Sampling time - ns
86 Float_t fDriftSpeed; // Drift speed
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 Float_t fgkClockDefault; //Default value for the clock freq.
92 static const Int_t fgkHalfNanodesDefault; //Default value for fNanodes/2
93 static const Int_t fgkNsamplesDefault; //Default value for fNsamples
95 ClassDef(AliITSsegmentationSDD,3) // SDD segmentation