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46d29e70 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
88cb7938 | 16 | /* $Id$ */ |
0a29d0f1 | 17 | |
18 | ///////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Tracking sector // | |
21 | // // | |
22 | ///////////////////////////////////////////////////////////////////////// | |
46d29e70 | 23 | |
24 | #include <TObject.h> | |
25 | ||
26 | #include "AliRun.h" | |
27 | ||
28 | #include "AliTRD.h" | |
46d29e70 | 29 | #include "AliTRDgeometry.h" |
30 | #include "AliTRDcluster.h" | |
31 | #include "AliTRDtimeBin.h" | |
46d29e70 | 32 | #include "AliTRDtrackingSector.h" |
5443e65e | 33 | #include "AliTRDparameter.h" |
46d29e70 | 34 | |
46d29e70 | 35 | ClassImp(AliTRDtrackingSector) |
36 | ||
37 | //_______________________________________________________ | |
46d29e70 | 38 | AliTRDtrackingSector::~AliTRDtrackingSector() |
39 | { | |
40 | // | |
41 | // Destructor | |
42 | // | |
43 | ||
a1c3aded | 44 | delete fTimeBin; |
46d29e70 | 45 | |
46 | } | |
47 | ||
48 | //_______________________________________________________ | |
49 | AliTRDtimeBin &AliTRDtrackingSector::operator[](Int_t i) | |
50 | { | |
51 | // | |
52 | // Index operator | |
53 | // | |
54 | ||
55 | return *(fTimeBin+i); | |
56 | ||
57 | } | |
58 | ||
59 | //_______________________________________________________ | |
46d29e70 | 60 | void AliTRDtrackingSector::SetUp() |
61 | { | |
0a29d0f1 | 62 | // |
63 | // Initialization | |
64 | // | |
65 | ||
66 | AliTRD *trd = (AliTRD*) gAlice->GetDetector("TRD"); | |
67 | fGeom = trd->GetGeometry(); | |
46d29e70 | 68 | |
88cb7938 | 69 | fTimeBinSize = fGeom->GetTimeBinSize(); |
70 | ||
0e9c2ad5 | 71 | fN = AliTRDgeometry::Nplan() * (Int_t(AliTRDgeometry::DrThick() |
72 | /fTimeBinSize) + 1); | |
46d29e70 | 73 | |
74 | fTimeBin = new AliTRDtimeBin[fN]; | |
75 | ||
5443e65e | 76 | if (!fPar) { |
77 | fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter"); | |
78 | } | |
79 | ||
80 | fTimeBinSize = fPar->GetTimeBinSize(); | |
81 | ||
46d29e70 | 82 | } |
83 | ||
84 | //______________________________________________________ | |
a819a5f7 | 85 | Double_t AliTRDtrackingSector::GetX(Int_t tb) const |
46d29e70 | 86 | { |
0a29d0f1 | 87 | // |
88 | // Get global x coordinate | |
89 | // | |
90 | ||
a819a5f7 | 91 | if( (tb<0) || (tb>fN-1)) { |
46d29e70 | 92 | fprintf(stderr,"AliTRDtrackingSector::GetX: TimeBin index is out of range !\n"); |
93 | return -99999.; | |
94 | } | |
95 | else { | |
96 | ||
0a29d0f1 | 97 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
98 | Int_t localTb = tbPerPlane - tb%tbPerPlane - 1; | |
46d29e70 | 99 | |
0a29d0f1 | 100 | Int_t plane = tb/tbPerPlane; |
5443e65e | 101 | Float_t t0 = fPar->GetTime0(plane); |
0a29d0f1 | 102 | Double_t x = t0 - (localTb + 0.5) * fTimeBinSize; |
46d29e70 | 103 | |
104 | return x; | |
0a29d0f1 | 105 | |
46d29e70 | 106 | } |
0a29d0f1 | 107 | |
46d29e70 | 108 | } |
109 | ||
110 | //______________________________________________________ | |
46d29e70 | 111 | Int_t AliTRDtrackingSector::GetTimeBinNumber(Double_t x) const |
112 | { | |
0a29d0f1 | 113 | // |
114 | // Returns the time bin number | |
115 | // | |
116 | ||
5443e65e | 117 | Float_t rOut = fPar->GetTime0(AliTRDgeometry::Nplan()-1); |
118 | Float_t rIn = fPar->GetTime0(0) - AliTRDgeometry::DrThick(); | |
46d29e70 | 119 | |
a819a5f7 | 120 | |
0a29d0f1 | 121 | if(x >= rOut) return fN-1; |
122 | if(x <= rIn) return 0; | |
46d29e70 | 123 | |
a819a5f7 | 124 | Int_t plane; |
125 | for (plane = AliTRDgeometry::Nplan()-1; plane >= 0; plane--) { | |
5443e65e | 126 | if(x > (fPar->GetTime0(plane) - AliTRDgeometry::DrThick())) break; |
a819a5f7 | 127 | } |
128 | ||
0a29d0f1 | 129 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
5443e65e | 130 | Int_t localTb = Int_t((fPar->GetTime0(plane)-x)/fTimeBinSize); |
bbf92647 | 131 | |
0a29d0f1 | 132 | if((localTb < 0) || (localTb >= tbPerPlane)) { |
a819a5f7 | 133 | printf("AliTRDtrackingSector::GetTimeBinNumber: \n"); |
134 | printf("local time bin %d is out of bounds [0..%d]: x = %f \n", | |
0a29d0f1 | 135 | localTb,tbPerPlane-1,x); |
a819a5f7 | 136 | return -1; |
137 | } | |
138 | ||
0a29d0f1 | 139 | Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb; |
46d29e70 | 140 | |
0a29d0f1 | 141 | return timeBin; |
46d29e70 | 142 | } |
143 | ||
144 | //______________________________________________________ | |
0a29d0f1 | 145 | Int_t AliTRDtrackingSector::GetTimeBin(Int_t det, Int_t localTb) const |
46d29e70 | 146 | { |
0a29d0f1 | 147 | // |
148 | // Time bin | |
149 | // | |
150 | ||
46d29e70 | 151 | Int_t plane = fGeom->GetPlane(det); |
152 | ||
0a29d0f1 | 153 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
bbf92647 | 154 | |
0a29d0f1 | 155 | Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb; |
156 | ||
157 | return timeBin; | |
bbf92647 | 158 | |
46d29e70 | 159 | } |
160 | ||
a819a5f7 | 161 | |
162 | //______________________________________________________ | |
163 | ||
164 | Bool_t AliTRDtrackingSector::TECframe(Int_t tb, Double_t y, Double_t z) const | |
165 | { | |
0a29d0f1 | 166 | // |
167 | // Returns <true> if point defined by <x(tb),y,z> is within | |
168 | // the TEC G10 frame, otherwise returns <false> | |
169 | // | |
a819a5f7 | 170 | |
171 | if((tb > (fN-1)) || (tb < 0)) return kFALSE; | |
172 | ||
0a29d0f1 | 173 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
174 | Int_t plane = tb/tbPerPlane; | |
a819a5f7 | 175 | |
176 | Double_t x = GetX(tb); | |
177 | y = TMath::Abs(y); | |
178 | ||
179 | if((y > fGeom->GetChamberWidth(plane)/2.) && | |
180 | (y < x*TMath::Tan(0.5*AliTRDgeometry::GetAlpha()))) return kTRUE; | |
181 | ||
182 | Double_t zmin, zmax; | |
183 | Float_t fRowPadSize, fRow0; | |
184 | Int_t nPadRows; | |
185 | ||
186 | for(Int_t iCha = 1; iCha < AliTRDgeometry::Ncham(); iCha++) { | |
187 | ||
5443e65e | 188 | fRow0 = fPar->GetRow0(plane,iCha-1,0); |
189 | fRowPadSize = fPar->GetRowPadSize(plane,iCha-1,0); | |
190 | nPadRows = fPar->GetRowMax(plane,iCha-1,0); | |
a819a5f7 | 191 | zmin = fRow0 - fRowPadSize/2 + fRowPadSize * nPadRows; |
192 | ||
5443e65e | 193 | fRow0 = fPar->GetRow0(plane,iCha,0); |
194 | fRowPadSize = fPar->GetRowPadSize(plane,iCha,0); | |
a819a5f7 | 195 | zmax = fRow0 - fRowPadSize/2; |
196 | ||
197 | if((z > zmin) && (z < zmax)) return kTRUE; | |
198 | } | |
199 | ||
200 | return kFALSE; | |
0a29d0f1 | 201 | |
a819a5f7 | 202 | } |