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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 | ||
16 | /* | |
17 | $Log$ | |
b9d0a01d | 18 | Revision 1.7.6.2 2002/07/24 10:09:31 alibrary |
19 | Updating VirtualMC | |
20 | ||
21 | Revision 1.9 2002/06/12 09:54:36 cblume | |
22 | Update of tracking code provided by Sergei | |
23 | ||
5443e65e | 24 | Revision 1.8 2002/03/28 14:59:07 cblume |
25 | Coding conventions | |
26 | ||
0a29d0f1 | 27 | Revision 1.7 2001/11/19 08:44:08 cblume |
28 | Fix bugs reported by Rene | |
29 | ||
a1c3aded | 30 | Revision 1.6 2001/05/28 17:07:58 hristov |
31 | Last minute changes; ExB correction in AliTRDclusterizerV1; taking into account of material in G10 TEC frames and material between TEC planes (C.Blume,S.Sedykh) | |
32 | ||
a819a5f7 | 33 | Revision 1.5 2000/12/08 16:07:02 cblume |
34 | Update of the tracking by Sergei | |
35 | ||
bbf92647 | 36 | Revision 1.4 2000/10/16 01:16:53 cblume |
37 | Changed timebin 0 to be the one closest to the readout | |
38 | ||
ea6a8999 | 39 | Revision 1.3 2000/10/15 23:40:01 cblume |
40 | Remove AliTRDconst | |
41 | ||
0e9c2ad5 | 42 | Revision 1.2 2000/10/06 16:49:46 cblume |
43 | Made Getters const | |
44 | ||
46d29e70 | 45 | Revision 1.1.2.2 2000/10/04 16:34:58 cblume |
46 | Replace include files by forward declarations | |
47 | ||
48 | Revision 1.1.2.1 2000/09/22 14:47:52 cblume | |
49 | Add the tracking code | |
50 | ||
0a29d0f1 | 51 | */ |
52 | ||
53 | ///////////////////////////////////////////////////////////////////////// | |
54 | // // | |
55 | // Tracking sector // | |
56 | // // | |
57 | ///////////////////////////////////////////////////////////////////////// | |
46d29e70 | 58 | |
59 | #include <TObject.h> | |
60 | ||
61 | #include "AliRun.h" | |
62 | ||
63 | #include "AliTRD.h" | |
46d29e70 | 64 | #include "AliTRDgeometry.h" |
65 | #include "AliTRDcluster.h" | |
66 | #include "AliTRDtimeBin.h" | |
46d29e70 | 67 | #include "AliTRDtrackingSector.h" |
5443e65e | 68 | #include "AliTRDparameter.h" |
46d29e70 | 69 | |
46d29e70 | 70 | ClassImp(AliTRDtrackingSector) |
71 | ||
72 | //_______________________________________________________ | |
46d29e70 | 73 | AliTRDtrackingSector::~AliTRDtrackingSector() |
74 | { | |
75 | // | |
76 | // Destructor | |
77 | // | |
78 | ||
a1c3aded | 79 | delete fTimeBin; |
46d29e70 | 80 | |
81 | } | |
82 | ||
83 | //_______________________________________________________ | |
84 | AliTRDtimeBin &AliTRDtrackingSector::operator[](Int_t i) | |
85 | { | |
86 | // | |
87 | // Index operator | |
88 | // | |
89 | ||
90 | return *(fTimeBin+i); | |
91 | ||
92 | } | |
93 | ||
94 | //_______________________________________________________ | |
46d29e70 | 95 | void AliTRDtrackingSector::SetUp() |
96 | { | |
0a29d0f1 | 97 | // |
98 | // Initialization | |
99 | // | |
100 | ||
101 | AliTRD *trd = (AliTRD*) gAlice->GetDetector("TRD"); | |
102 | fGeom = trd->GetGeometry(); | |
46d29e70 | 103 | |
0e9c2ad5 | 104 | fN = AliTRDgeometry::Nplan() * (Int_t(AliTRDgeometry::DrThick() |
105 | /fTimeBinSize) + 1); | |
46d29e70 | 106 | |
107 | fTimeBin = new AliTRDtimeBin[fN]; | |
108 | ||
5443e65e | 109 | if (!fPar) { |
110 | fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter"); | |
111 | } | |
112 | ||
113 | fTimeBinSize = fPar->GetTimeBinSize(); | |
114 | ||
46d29e70 | 115 | } |
116 | ||
117 | //______________________________________________________ | |
a819a5f7 | 118 | Double_t AliTRDtrackingSector::GetX(Int_t tb) const |
46d29e70 | 119 | { |
0a29d0f1 | 120 | // |
121 | // Get global x coordinate | |
122 | // | |
123 | ||
a819a5f7 | 124 | if( (tb<0) || (tb>fN-1)) { |
46d29e70 | 125 | fprintf(stderr,"AliTRDtrackingSector::GetX: TimeBin index is out of range !\n"); |
126 | return -99999.; | |
127 | } | |
128 | else { | |
129 | ||
0a29d0f1 | 130 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
131 | Int_t localTb = tbPerPlane - tb%tbPerPlane - 1; | |
46d29e70 | 132 | |
0a29d0f1 | 133 | Int_t plane = tb/tbPerPlane; |
5443e65e | 134 | Float_t t0 = fPar->GetTime0(plane); |
0a29d0f1 | 135 | Double_t x = t0 - (localTb + 0.5) * fTimeBinSize; |
46d29e70 | 136 | |
137 | return x; | |
0a29d0f1 | 138 | |
46d29e70 | 139 | } |
0a29d0f1 | 140 | |
46d29e70 | 141 | } |
142 | ||
143 | //______________________________________________________ | |
46d29e70 | 144 | Int_t AliTRDtrackingSector::GetTimeBinNumber(Double_t x) const |
145 | { | |
0a29d0f1 | 146 | // |
147 | // Returns the time bin number | |
148 | // | |
149 | ||
5443e65e | 150 | Float_t rOut = fPar->GetTime0(AliTRDgeometry::Nplan()-1); |
151 | Float_t rIn = fPar->GetTime0(0) - AliTRDgeometry::DrThick(); | |
46d29e70 | 152 | |
a819a5f7 | 153 | |
0a29d0f1 | 154 | if(x >= rOut) return fN-1; |
155 | if(x <= rIn) return 0; | |
46d29e70 | 156 | |
a819a5f7 | 157 | Int_t plane; |
158 | for (plane = AliTRDgeometry::Nplan()-1; plane >= 0; plane--) { | |
5443e65e | 159 | if(x > (fPar->GetTime0(plane) - AliTRDgeometry::DrThick())) break; |
a819a5f7 | 160 | } |
161 | ||
0a29d0f1 | 162 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
5443e65e | 163 | Int_t localTb = Int_t((fPar->GetTime0(plane)-x)/fTimeBinSize); |
bbf92647 | 164 | |
0a29d0f1 | 165 | if((localTb < 0) || (localTb >= tbPerPlane)) { |
a819a5f7 | 166 | printf("AliTRDtrackingSector::GetTimeBinNumber: \n"); |
167 | printf("local time bin %d is out of bounds [0..%d]: x = %f \n", | |
0a29d0f1 | 168 | localTb,tbPerPlane-1,x); |
a819a5f7 | 169 | return -1; |
170 | } | |
171 | ||
0a29d0f1 | 172 | Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb; |
46d29e70 | 173 | |
0a29d0f1 | 174 | return timeBin; |
46d29e70 | 175 | } |
176 | ||
177 | //______________________________________________________ | |
0a29d0f1 | 178 | Int_t AliTRDtrackingSector::GetTimeBin(Int_t det, Int_t localTb) const |
46d29e70 | 179 | { |
0a29d0f1 | 180 | // |
181 | // Time bin | |
182 | // | |
183 | ||
46d29e70 | 184 | Int_t plane = fGeom->GetPlane(det); |
185 | ||
0a29d0f1 | 186 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
bbf92647 | 187 | |
0a29d0f1 | 188 | Int_t timeBin = (plane + 1) * tbPerPlane - 1 - localTb; |
189 | ||
190 | return timeBin; | |
bbf92647 | 191 | |
46d29e70 | 192 | } |
193 | ||
a819a5f7 | 194 | |
195 | //______________________________________________________ | |
196 | ||
197 | Bool_t AliTRDtrackingSector::TECframe(Int_t tb, Double_t y, Double_t z) const | |
198 | { | |
0a29d0f1 | 199 | // |
200 | // Returns <true> if point defined by <x(tb),y,z> is within | |
201 | // the TEC G10 frame, otherwise returns <false> | |
202 | // | |
a819a5f7 | 203 | |
204 | if((tb > (fN-1)) || (tb < 0)) return kFALSE; | |
205 | ||
0a29d0f1 | 206 | Int_t tbPerPlane = fN/AliTRDgeometry::Nplan(); |
207 | Int_t plane = tb/tbPerPlane; | |
a819a5f7 | 208 | |
209 | Double_t x = GetX(tb); | |
210 | y = TMath::Abs(y); | |
211 | ||
212 | if((y > fGeom->GetChamberWidth(plane)/2.) && | |
213 | (y < x*TMath::Tan(0.5*AliTRDgeometry::GetAlpha()))) return kTRUE; | |
214 | ||
215 | Double_t zmin, zmax; | |
216 | Float_t fRowPadSize, fRow0; | |
217 | Int_t nPadRows; | |
218 | ||
219 | for(Int_t iCha = 1; iCha < AliTRDgeometry::Ncham(); iCha++) { | |
220 | ||
5443e65e | 221 | fRow0 = fPar->GetRow0(plane,iCha-1,0); |
222 | fRowPadSize = fPar->GetRowPadSize(plane,iCha-1,0); | |
223 | nPadRows = fPar->GetRowMax(plane,iCha-1,0); | |
a819a5f7 | 224 | zmin = fRow0 - fRowPadSize/2 + fRowPadSize * nPadRows; |
225 | ||
5443e65e | 226 | fRow0 = fPar->GetRow0(plane,iCha,0); |
227 | fRowPadSize = fPar->GetRowPadSize(plane,iCha,0); | |
a819a5f7 | 228 | zmax = fRow0 - fRowPadSize/2; |
229 | ||
230 | if((z > zmin) && (z < zmax)) return kTRUE; | |
231 | } | |
232 | ||
233 | return kFALSE; | |
0a29d0f1 | 234 | |
a819a5f7 | 235 | } |