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Modified AddTracks. Should be backward compatible
[u/mrichter/AliRoot.git] / TRD / AliTRDgeometry.h
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dd9a6ee3 1#ifndef ALITRDGEOMETRY_H
2#define ALITRDGEOMETRY_H
f7336fa3 3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
db30bf0f 6/* $Id$ */
f7336fa3 7
94de3818 8#include "AliGeometry.h"
f7336fa3 9
f7336fa3 10class AliTRDgeometry : public AliGeometry {
11
12 public:
13
dd56b762 14 enum { kNplan = 6, kNcham = 5, kNsect = 18, kNdet = 540 };
15
f7336fa3 16 AliTRDgeometry();
8230f242 17 virtual ~AliTRDgeometry();
f7336fa3 18
793ff80c 19 virtual void CreateGeometry(Int_t *idtmed);
20 virtual Int_t IsVersion() const = 0;
21 virtual void Init();
22 virtual Bool_t Local2Global(Int_t d, Float_t *local, Float_t *global) const;
23 virtual Bool_t Local2Global(Int_t p, Int_t c, Int_t s, Float_t *local, Float_t *global) const;
24 virtual Bool_t Rotate(Int_t d, Float_t *pos, Float_t *rot) const;
25 virtual Bool_t RotateBack(Int_t d, Float_t *rot, Float_t *pos) const;
26
27 static Int_t Nsect() { return fgkNsect; };
28 static Int_t Nplan() { return fgkNplan; };
29 static Int_t Ncham() { return fgkNcham; };
30 static Int_t Ndet() { return fgkNdet; };
31
32 static Float_t Rmin() { return fgkRmin; };
33 static Float_t Rmax() { return fgkRmax; };
34 static Float_t Zmax1() { return fgkZmax1; };
35 static Float_t Zmax2() { return fgkZmax2; };
36
37 static Float_t Cwidcha() { return (fgkSwidth2 - fgkSwidth1)
38 / fgkSheight * (fgkCheight + fgkCspace); };
39 static Float_t Cheight() { return fgkCheight; };
40 static Float_t Cspace() { return fgkCspace; };
a2b90f83 41 static Float_t Ccframe() { return fgkCcframe; };
793ff80c 42 static Float_t MyThick() { return fgkMyThick; };
43 static Float_t DrThick() { return fgkDrThick; };
a2b90f83 44 static Float_t AmThick() { return fgkAmThick; };
a2b90f83 45 static Float_t DrZpos() { return fgkDrZpos; };
793ff80c 46
47 virtual void SetPHOShole() = 0;
48 virtual void SetRICHhole() = 0;
49
a2b90f83 50 virtual void SetNRowPad(const Int_t p, const Int_t c, const Int_t npad) {};
51 virtual void SetNColPad(const Int_t npad);
52 virtual void SetNTimeBin(const Int_t nbin);
53 virtual void SetExpandTimeBin(const Int_t nbefore, const Int_t nafter)
54 { fTimeBefore = nbefore;
55 fTimeAfter = nafter; };
793ff80c 56
57 virtual Bool_t GetPHOShole() const = 0;
58 virtual Bool_t GetRICHhole() const = 0;
59
a2b90f83 60 virtual Int_t GetDetector(const Int_t p, const Int_t c, const Int_t s) const;
61 virtual Int_t GetPlane(const Int_t d) const;
62 virtual Int_t GetChamber(const Int_t d) const;
63 virtual Int_t GetSector(const Int_t d) const;
793ff80c 64
a2b90f83 65 Float_t GetChamberWidth(const Int_t p) const { return fCwidth[p]; };
793ff80c 66
a2b90f83 67 Int_t GetRowMax(const Int_t p, const Int_t c, const Int_t s)
68 const { return fRowMax[p][c][s]; };
69 Int_t GetColMax(const Int_t p) const { return fColMax[p]; };
70 Int_t GetTimeMax() const { return fTimeMax; };
71 Int_t GetTimeBefore() const { return fTimeBefore; };
72 Int_t GetTimeAfter() const { return fTimeAfter; };
73 Int_t GetTimeTotal() const { return fTimeMax
74 + fTimeBefore
75 + fTimeAfter; };
76
77 Float_t GetRow0(const Int_t p, const Int_t c, const Int_t s)
78 const { return fRow0[p][c][s]; };
79 Float_t GetCol0(const Int_t p) const { return fCol0[p]; };
80 Float_t GetTime0(const Int_t p) const { return fTime0[p]; };
81
82 Float_t GetRowPadSize(const Int_t p, const Int_t c, const Int_t s)
83 const { return fRowPadSize[p][c][s]; };
84 Float_t GetColPadSize(const Int_t p) const { return fColPadSize[p]; };
85 Float_t GetTimeBinSize() const { return fTimeBinSize; };
f7336fa3 86
793ff80c 87 virtual void GetGlobal(const AliRecPoint *p, TVector3 &pos, TMatrix &mat) const;
88 virtual void GetGlobal(const AliRecPoint *p, TVector3 &pos) const;
f7336fa3 89
a2b90f83 90 static Double_t GetAlpha() { return 2 * 3.14159265358979323846 / fgkNsect; };
f7336fa3 91
793ff80c 92 protected:
f7336fa3 93
793ff80c 94 static const Int_t fgkNsect; // Number of sectors in the full detector (18)
95 static const Int_t fgkNplan; // Number of planes of the TRD (6)
96 static const Int_t fgkNcham; // Number of chambers in z-direction (5)
97 static const Int_t fgkNdet; // Total number of detectors (18 * 6 * 5 = 540)
98
99 static const Float_t fgkRmin; // Minimal radius of the TRD
100 static const Float_t fgkRmax; // Maximal radius of the TRD
101
102 static const Float_t fgkZmax1; // Half-length of the TRD at outer radius
103 static const Float_t fgkZmax2; // Half-length of the TRD at inner radius
104
105 static const Float_t fgkSheight; // Height of the TRD-volume in spaceframe (BTR1-3)
106 static const Float_t fgkSwidth1; // Lower width of the TRD-volume in spaceframe (BTR1-3)
107 static const Float_t fgkSwidth2; // Upper width of the TRD-volume in spaceframe (BTR1-3)
108 static const Float_t fgkSlenTR1; // Length of the TRD-volume in spaceframe (BTR1)
109 static const Float_t fgkSlenTR2; // Length of the TRD-volume in spaceframe (BTR2)
110 static const Float_t fgkSlenTR3; // Length of the TRD-volume in spaceframe (BTR3)
111
112 static const Float_t fgkCheight; // Height of the chambers
113 static const Float_t fgkCspace; // Vertical spacing of the chambers
114 static const Float_t fgkCaframe; // Height of the aluminum frame
115 static const Float_t fgkCcframe; // Height of the carbon frame
116 static const Float_t fgkCathick; // Thickness of the aluminum frame
117 static const Float_t fgkCcthick; // Thickness of the carbon frame
118
793ff80c 119 static const Float_t fgkRaThick; // Thickness of the radiator
793ff80c 120 static const Float_t fgkMyThick; // Thickness of the mylar-layer
121 static const Float_t fgkXeThick; // Thickness of the gas volume
122 static const Float_t fgkDrThick; // Thickness of the drift region
123 static const Float_t fgkAmThick; // Thickness of the amplification region
124 static const Float_t fgkCuThick; // Thickness of the pad plane
125 static const Float_t fgkSuThick; // Thickness of the HEXCEL+G10 support structure
126 static const Float_t fgkFeThick; // Thickness of the FEE + signal lines
127 static const Float_t fgkCoThick; // Thickness of the PE of the cooling device
128 static const Float_t fgkWaThick; // Thickness of the cooling water
129
793ff80c 130 static const Float_t fgkRaZpos; // Position of the radiator
793ff80c 131 static const Float_t fgkMyZpos; // Position of the mylar-layer
132 static const Float_t fgkDrZpos; // Position of the drift region
133 static const Float_t fgkAmZpos; // Position of the amplification region
134 static const Float_t fgkCuZpos; // Position of the pad plane
135 static const Float_t fgkSuZpos; // Position of the HEXCEL+G10 support structure
136 static const Float_t fgkFeZpos; // Position of the FEE + signal lines
137 static const Float_t fgkCoZpos; // Position of the PE of the cooling device
138 static const Float_t fgkWaZpos; // Position of the colling water
139
140 Int_t fRowMax[kNplan][kNcham][kNsect]; // Number of pad-rows
141 Int_t fColMax[kNplan]; // Number of pad-columns
a2b90f83 142 Int_t fTimeMax; // Number of timebins in the drift region
143 Int_t fTimeBefore; // Number of timebins before the drift region
144 Int_t fTimeAfter; // Number of timebins after the drift region
793ff80c 145
146 Float_t fCwidth[kNplan]; // Width of the chambers
147
148 Float_t fRow0[kNplan][kNcham][kNsect]; // Row-position of pad 0
149 Float_t fCol0[kNplan]; // Column-position of pad 0
150 Float_t fTime0[kNplan]; // Time-position of pad 0
151
71d9fa7b 152 Float_t fRowPadSize[kNplan][kNcham][kNsect]; // Pad size in z-direction
153 Float_t fColPadSize[kNplan]; // Pad size in rphi-direction
793ff80c 154 Float_t fTimeBinSize; // Size of the time buckets
155
156 Float_t fRotA11[kNsect]; // Matrix elements for the rotation
157 Float_t fRotA12[kNsect]; // Matrix elements for the rotation
158 Float_t fRotA21[kNsect]; // Matrix elements for the rotation
159 Float_t fRotA22[kNsect]; // Matrix elements for the rotation
160
161 Float_t fRotB11[kNsect]; // Matrix elements for the backward rotation
162 Float_t fRotB12[kNsect]; // Matrix elements for the backward rotation
163 Float_t fRotB21[kNsect]; // Matrix elements for the backward rotation
164 Float_t fRotB22[kNsect]; // Matrix elements for the backward rotation
165
71d9fa7b 166 ClassDef(AliTRDgeometry,3) // TRD geometry base class
f7336fa3 167
168};
169
170#endif