1 #ifndef ALIRICHSEGMENTATIONV0_H
2 #define ALIRICHSEGMENTATIONV0_H
5 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
6 * See cxx source for full Copyright notice */
10 #include "AliSegmentation.h"
12 class AliRICHSegmentationV0 :
13 public AliSegmentation {
15 AliRICHSegmentationV0(){}
16 virtual ~AliRICHSegmentationV0(){}
18 // Set Chamber Segmentation Parameters
21 virtual void SetPadSize(Float_t p1, Float_t p2);
23 virtual void SetDAnod(Float_t D) {fWireD = D;};
26 // Transform from pad (wire) to real coordinates and vice versa
28 // Anod wire coordinate closest to xhit
29 virtual Float_t GetAnod(Float_t xhit) const;
30 // Transform from pad to real coordinates
31 virtual void GetPadI(Float_t x, Float_t y , Int_t &ix, Int_t &iy);
32 virtual void GetPadI(Float_t x, Float_t y , Float_t z, Int_t &ix, Int_t &iy)
33 {GetPadI(x, y, ix, iy);}
34 // Transform from real to pad coordinates
35 virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y);
36 virtual void GetPadC(Int_t ix, Int_t iy, Float_t &x, Float_t &y, Float_t &z)
37 {z=0; GetPadC(ix, iy, x , y);}
40 virtual void Init(Int_t id);
45 virtual Float_t Dpx() const {return fDpx;}
48 virtual Float_t Dpy() const {return fDpy;}
49 // Pad size in x by Sector
50 virtual Float_t Dpx(Int_t) const {return fDpx;}
51 // Pad size in y by Sector
52 virtual Float_t Dpy(Int_t) const {return fDpy;}
53 // Max number of Pads in x
54 virtual Int_t Npx() const {return fNpx;}
55 // Max number of Pads in y
56 virtual Int_t Npy() const {return fNpy;}
60 virtual void SetPad(Int_t ix, Int_t iy);
62 virtual void SetHit(Float_t xhit , Float_t yhit);
63 virtual void SetHit(Float_t xhit, Float_t yhit, Float_t zhit)
68 virtual void FirstPad(Float_t xhit, Float_t yhit, Float_t dx, Float_t dy);
69 virtual void FirstPad(Float_t xhit, Float_t yhit, Float_t zhit, Float_t dx, Float_t dy)
70 {FirstPad(xhit, yhit, dx, dy);}
72 virtual void NextPad();
74 virtual Int_t MorePads();
76 // Distance between 1 pad and a position
77 virtual Float_t Distance2AndOffset(Int_t iX, Int_t iY, Float_t X, Float_t Y, Int_t *
79 // Number of pads read in parallel and offset to add to x
80 // (specific to LYON, but mandatory for display)
81 virtual void GetNParallelAndOffset(Int_t iX, Int_t iY,
82 Int_t *Nparallel, Int_t *Offset) {*Nparallel=1;*Offset=0;}
83 // Get next neighbours
84 virtual void Neighbours
85 (Int_t iX, Int_t iY, Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]);
87 // Current Pad during Integration
89 virtual Int_t Ix() {return fIx;}
91 virtual Int_t Iy() {return fIy;}
93 virtual Int_t ISector() {return 1;}
94 // calculate sector from x-y coordinates
95 virtual Int_t Sector(Int_t ix, Int_t iy) {return 1;}
97 // Signal Generation Condition during Stepping
98 virtual Int_t SigGenCond(Float_t x, Float_t y, Float_t z);
99 // Initialise signal gneration at coord (x,y,z)
100 virtual void SigGenInit(Float_t x, Float_t y, Float_t z);
101 // Current integration limits
102 virtual void IntegrationLimits
103 (Float_t& x1, Float_t& x2, Float_t& y1, Float_t& y2);
104 // Test points for auto calibration
105 virtual void GiveTestPoints(Int_t &n, Float_t *x, Float_t *y) const;
106 // Debugging utilities
107 virtual void Draw(const char* = "") const;
108 // Function for systematic corrections
109 virtual void SetCorrFunc(Int_t dum, TF1* func) {fCorr=func;}
111 virtual TF1* CorrFunc(Int_t) const {return fCorr;}
112 ClassDef(AliRICHSegmentationV0,1)
115 // Implementation of the segmentation data
116 // Version 0 models rectangular pads with the same dimensions all
117 // over the cathode plane
121 Float_t fDpx; // x pad width per sector
122 Float_t fDpy; // y pad base width
123 Int_t fNpx; // Number of pads in x
124 Int_t fNpy; // Number of pads in y
125 Int_t fSector; // Current padplane
126 Float_t fWireD; // wire pitch
130 // Chamber region consideres during disintegration (lower left and upper right corner)
132 Int_t fIxmin; // lower left x
133 Int_t fIxmax; // lower left y
134 Int_t fIymin; // upper right x
135 Int_t fIymax; // upper right y
137 // Current pad during integration (cursor for disintegration)
138 Int_t fIx; // pad coord. x
139 Int_t fIy; // pad coord. y
143 // Current pad and wire during tracking (cursor at hit centre)
144 Float_t fXhit; //x position
145 Float_t fYhit; //y position
146 // Reference point to define signal generation condition
147 Int_t fIxt; // pad coord. x
148 Int_t fIyt; // pad coord. y
149 Int_t fIwt; // wire number
152 TF1* fCorr; // correction function