1 #ifndef ALIITSSEGMENTATIONSDD_H
2 #define ALIITSSEGMENTATIONSDD_H
5 #include "AliITSsegmentation.h"
7 //////////////////////////////////////////////////////
8 // Segmentation class for SDD //
10 //////////////////////////////////////////////////////
11 class AliITSCalibration;
12 class AliITSsegmentationSDD :
13 public AliITSsegmentation {
17 AliITSsegmentationSDD();
18 AliITSsegmentationSDD(const AliITSsegmentationSDD &source);
19 AliITSsegmentationSDD& operator=(const AliITSsegmentationSDD &source);
20 AliITSsegmentationSDD(AliITSgeom *gm, AliITSCalibration *resp);
21 virtual ~AliITSsegmentationSDD(){}
23 // Set Detector Segmentation Parameters
25 // get the drift speed used for this segmentation
26 virtual Float_t GetDriftSpeed()const{return fDriftSpeed;}
27 // Set the drift speed needed for this segmentation
28 virtual void SetDriftSpeed(Float_t ds){fDriftSpeed = ds;}
30 virtual void SetPadSize(Float_t pitch, Float_t clock)
31 {fPitch=pitch;fTimeStep=1000./clock;}
33 // Maximum number of cells along the two coordinates z,x (anodes,samples)
34 virtual void SetNPads(Int_t p1, Int_t p2)
35 {fNanodes=2*p1;fNsamples=p2;}
36 // Returns the maximum number of cells (digits) posible
37 virtual Int_t GetNPads() const {return fNanodes*fNsamples;}
39 // Transform from real local to cell coordinates
40 virtual void GetPadIxz(Float_t x ,Float_t z ,Int_t &ix,Int_t &iz) const;
41 // Transform from cell to real local coordinates
42 virtual void GetPadCxz(Int_t ix,Int_t iz,Float_t &x ,Float_t &z ) const;
43 // Transform from real global to local coordinates
44 virtual void GetLocal(Int_t module,Float_t *g ,Float_t *l) const;
45 // Transform from real local to global coordinates
46 virtual void GetGlobal(Int_t module,Float_t *l ,Float_t *g) const;
47 // Get anode and time bucket as floats - numbering from 0
48 virtual void GetPadTxz(Float_t &x ,Float_t &z) const;
49 // Transformation from Geant cm detector center local coordinates
50 // to detector segmentation/cell coordiantes starting from (0,0).
51 virtual Bool_t LocalToDet(Float_t x,Float_t z,Int_t &ix,Int_t &iz) const;
52 // Transformation from detector segmentation/cell coordiantes starting
53 // from (0,0) to Geant cm detector center local coordinates.
54 virtual void DetToLocal(Int_t ix,Int_t iz,Float_t &x,Float_t &z) const;
62 virtual Float_t Dpx(Int_t) const {return fTimeStep;}
64 virtual Float_t Dpz(Int_t) const {return fPitch;}
66 // Maximum number of samples in x
67 virtual Int_t Npx() const {return fNsamples;}
68 // Maximum number of anodes in z
69 virtual Int_t Npz() const {return fNanodes;}
72 // Get next neighbours
73 virtual void Neighbours(Int_t iX,Int_t iZ,Int_t* Nlist,Int_t Xlist[10],
74 Int_t Zlist[10]) const;
76 // Current integration limits
77 virtual void IntegrationLimits(Float_t&,Float_t&,Float_t&,Float_t&) {}
79 virtual void Print(Option_t *opt="") const;
80 // Print default parameters (static const data members, if any)
81 virtual void PrintDefaultParameters() const;
85 virtual void Copy(TObject &obj) const;
87 Int_t fNsamples; // Number of time samples in x
88 Int_t fNanodes; // Summed # of anodes in the two det halves (z)
89 Float_t fPitch; // Anode pitch - microns
90 Float_t fTimeStep; // Sampling time - ns
91 Float_t fDriftSpeed; // Drift speed
92 static const Float_t fgkDxDefault; // Default value for fDx
93 static const Float_t fgkDzDefault; // Default value for fDz
94 static const Float_t fgkDyDefault; // Default value for fDy
95 static const Float_t fgkPitchDefault; //Default value for fPitch
96 static const Float_t fgkClockDefault; //Default value for the clock freq.
97 static const Int_t fgkHalfNanodesDefault; //Default value for fNanodes/2
98 static const Int_t fgkNsamplesDefault; //Default value for fNsamples
100 ClassDef(AliITSsegmentationSDD,3) // SDD segmentation