Modifications needed by the HBT analysis (P.Skowronski)
[u/mrichter/AliRoot.git] / MUON / AliMUONSt1Segmentation.h
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ba030c0e 1#ifndef ALI_MUON_ST1_SEGMENTATION_H
2#define ALI_MUON_ST1_SEGMENTATION_H
3
4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
6
7/* $Id$ */
8
9// Authors: David Guez, Ivana Hrivnacova, Marion MacCormick; IPN Orsay
10//
11// Class AliMUONSt1Segmentation
12// -----------------------------
13// Segmentation for MUON station 1 using the external
14// mapping package
15
5f91c9e8 16#include "AliMpPlaneType.h"
ba030c0e 17
18#include "AliSegmentation.h"
19
20class TObjArray;
21
5f91c9e8 22class AliMpPlane;
23class AliMpPlaneSegmentation;
24class AliMpVPadIterator;
3c25381f 25class AliMpPad;
ba030c0e 26
27class AliMUONChamber;
28
29class AliMUONSt1Segmentation : public AliSegmentation
30{
31 public:
5f91c9e8 32 AliMUONSt1Segmentation(const AliMpPlaneType planeType);
ba030c0e 33 AliMUONSt1Segmentation(const AliMUONSt1Segmentation& rhs);
34 AliMUONSt1Segmentation();
35
36 virtual ~AliMUONSt1Segmentation();
37
38 //
39 // methods derived from base class
40 //
41
42 // Set Chamber Segmentation Parameters
43 //
44 virtual void SetPadSize(Float_t p1, Float_t p2);
45 // Pad size Dx*Dy
46 virtual void SetDAnod(Float_t D);
47 // Anode Pitch
48
49 // Transform from pad (wire) to real coordinates and vice versa
50 //
51 virtual Float_t GetAnod(Float_t xhit) const;
52 // Anode wire coordinate closest to xhit
53 virtual void GetPadI(Float_t x, Float_t y, Float_t z, Int_t& ix, Int_t& iy);
54 virtual void GetPadI(Float_t x, Float_t y , Int_t &ix, Int_t &iy) ;
55 // Transform from pad to real coordinates
56 virtual void GetPadC(Int_t ix, Int_t iy, Float_t& x, Float_t& y, Float_t& z);
57 virtual void GetPadC(Int_t ix, Int_t iy, Float_t& x, Float_t& y);
58 // Transform from real to pad coordinates
59
60
61 // Initialisation
62 //
63 virtual void Init(Int_t chamber);
64
65 // Get member data
66 //
67 virtual Float_t Dpx() const;
68 virtual Float_t Dpy() const;
69 // Pad size in x, y
3c25381f 70 virtual Float_t Dpx(Int_t isector) const;
71 virtual Float_t Dpy(Int_t isector) const;
ba030c0e 72 // Pad size in x, y by Sector
73 virtual Int_t Npx() const;
74 virtual Int_t Npy() const;
75 // Maximum number of Pads in y
76
3c25381f 77 virtual void SetPad(Int_t ix, Int_t iy);
ba030c0e 78 // Set pad position
3c25381f 79 virtual void SetHit(Float_t xhit, Float_t yhit, Float_t zhit);
ba030c0e 80 // Set hit position
81
82 // Iterate over pads
83 //
84 virtual void FirstPad(Float_t xhit, Float_t yhit, Float_t zhit,
85 Float_t dx, Float_t dy);
86 virtual void NextPad();
87 virtual Int_t MorePads();
88
89 virtual Float_t Distance2AndOffset(Int_t iX, Int_t iY,
90 Float_t X, Float_t Y, Int_t* dummy) ;
91 // Distance between 1 pad and a position
92 virtual void GetNParallelAndOffset(Int_t iX, Int_t iY,
93 Int_t* Nparallel, Int_t* Offset);
94 // Number of pads read in parallel and offset to add to x
95 // (specific to LYON, but mandatory for display)
96 virtual void Neighbours(Int_t iX, Int_t iY,
97 Int_t* Nlist, Int_t Xlist[10], Int_t Ylist[10]);
98 // Get next neighbours
99
100 // Current values
101 //
102 virtual Int_t Ix();
103 virtual Int_t Iy();
104 // Current pad cursor during disintegration
105 // x, y-coordinate
106 virtual Int_t ISector();
107 // current sector
108
109 virtual Int_t Sector(Int_t ix, Int_t iy);
110 virtual Int_t Sector(Float_t x, Float_t y);
111 // calculate sector from pad coordinates
112
113 virtual void IntegrationLimits(Float_t& x1, Float_t& x2,
114 Float_t& y1, Float_t& y2);
115 // Current integration limits
116
117 // Signal Generation
118 //
119 virtual Int_t SigGenCond(Float_t x, Float_t y, Float_t z);
120 // Signal Generation Condition during Stepping
121 virtual void SigGenInit(Float_t x, Float_t y, Float_t z);
122 // Initialise signal generation at coord (x,y,z)
123
124
125 virtual void GiveTestPoints(Int_t& n, Float_t* x, Float_t* y) const;
126 // Test points for auto calibration
127 virtual void Draw(const char *opt = "") const;
128 // Draw the segmentation zones
129
130 // Function for systematic corrections
131 //
3c25381f 132 virtual void SetCorrFunc(Int_t isec, TF1* func);
ba030c0e 133 // Set the correction function
3c25381f 134 virtual TF1* CorrFunc(Int_t isec) const;
ba030c0e 135 // Get the correction Function
136
137 private:
138 // operators
139 AliMUONSt1Segmentation& operator=(const AliMUONSt1Segmentation & rhs);
140
141 // methods
5f91c9e8 142 void UpdateCurrentPadValues(const AliMpPad& pad);
ba030c0e 143
144 // constants
145 static const Float_t fgkWireD; // default wire pitch
146 static const Float_t fgkLengthUnit;// conversion between length units
147 // from mapping (mm) to AliRoot (cm)
148
149 // data members
150
151 // From mapping
152 //
5f91c9e8 153 AliMpPlane* fPlane; // plane (from mapping)
154 AliMpPlaneSegmentation* fPlaneSegmentation;// plane segmantation (from mapping)
155 AliMpVPadIterator* fPlaneIterator; // ! iterator over pads
ba030c0e 156
157 // Wire pitch
158 //
159 Float_t fWireD; // wire pitch
160 // (smaller distance between anode wires)
161
162 // Reference to mother chamber
163 //
164 AliMUONChamber* fChamber; // ! Reference to mother chamber
165 Int_t fId; // Identifier
166 Float_t fRmin; // inner radius
167 Float_t fRmax; // outer radius
168 Float_t fZ; // z-position of chamber
169
170 // Current pad during integration (cursor for disintegration)
171 //
172 Int_t fIx; // ! pad coord. x
173 Int_t fIy; // ! pad coord. y
174 Float_t fX; // ! real coord. x
175 Float_t fY; // ! real ccord. y
176 Int_t fSector; // ! Current sector
177
178 // Current pad and wire during tracking (cursor at hit centre)
179 //
180 Float_t fXhit; // ! x-position of hit
181 Float_t fYhit; // ! y-position of hit
182
183 // Reference point to define signal generation condition
184 //
185 Int_t fIxt; // ! pad coord. x
186 Int_t fIyt; // ! pad coord. y
187 Int_t fIwt; // ! wire number
188 Float_t fXt; // ! x
189 Float_t fYt; // ! y
190
191 TObjArray* fCorrA; // ! Array of correction functions
192
193 ClassDef(AliMUONSt1Segmentation,1) // Station1 segmentation
194};
195
196#endif //ALI_MUON_ST1_SEGMENTATION_H
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