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