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f7336fa3 | 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 | $Log$ | |
71d9fa7b | 18 | Revision 1.5 2000/11/14 14:40:27 cblume |
19 | Correction for the Sun compiler (kTRUE and kFALSE) | |
20 | ||
57527628 | 21 | Revision 1.4 2000/11/01 14:53:21 cblume |
22 | Merge with TRD-develop | |
23 | ||
793ff80c | 24 | Revision 1.1.4.2 2000/10/04 16:34:58 cblume |
25 | Replace include files by forward declarations | |
26 | ||
27 | Revision 1.1.4.1 2000/09/22 14:50:39 cblume | |
28 | Adapted to tracking code | |
29 | ||
30 | Revision 1.3 2000/06/09 11:10:07 cblume | |
31 | Compiler warnings and coding conventions, next round | |
32 | ||
dd9a6ee3 | 33 | Revision 1.2 2000/06/08 18:32:58 cblume |
34 | Make code compliant to coding conventions | |
35 | ||
8230f242 | 36 | Revision 1.1 2000/02/28 19:02:07 cblume |
37 | Add new TRD classes | |
38 | ||
f7336fa3 | 39 | */ |
40 | ||
41 | /////////////////////////////////////////////////////////////////////////////// | |
42 | // // | |
43 | // TRD reconstructed point // | |
44 | // // | |
45 | /////////////////////////////////////////////////////////////////////////////// | |
46 | ||
793ff80c | 47 | #include "AliRun.h" |
48 | ||
f7336fa3 | 49 | #include "AliTRDgeometry.h" |
50 | #include "AliTRDrecPoint.h" | |
51 | #include "AliTRD.h" | |
52 | ||
53 | ClassImp(AliTRDrecPoint) | |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | AliTRDrecPoint::AliTRDrecPoint():AliRecPoint() | |
57 | { | |
58 | // | |
59 | // Standard constructor | |
60 | // | |
61 | ||
62 | fDetector = 0; | |
63 | ||
8230f242 | 64 | AliTRD *trd; |
f7336fa3 | 65 | if ((gAlice) && |
8230f242 | 66 | (trd = ((AliTRD*) gAlice->GetDetector("TRD")))) { |
67 | fGeom = trd->GetGeometry(); | |
f7336fa3 | 68 | } |
69 | else { | |
70 | fGeom = NULL; | |
71 | } | |
72 | ||
73 | } | |
74 | ||
8230f242 | 75 | //_____________________________________________________________________________ |
76 | AliTRDrecPoint::~AliTRDrecPoint() | |
77 | { | |
78 | // | |
79 | // AliTRDrecPoint destructor | |
80 | // | |
81 | ||
82 | } | |
83 | ||
f7336fa3 | 84 | //_____________________________________________________________________________ |
85 | void AliTRDrecPoint::AddDigit(Int_t digit) | |
86 | { | |
87 | // | |
88 | // Adds the index of a digit to the digits list | |
89 | // | |
90 | ||
91 | // First resize the list | |
92 | // (no clusters with more than 3 digits for the TRD | |
93 | if ((fMulDigit == 0) && (fMaxDigit >= 5)) { | |
94 | fMaxDigit = 5; | |
95 | delete fDigitsList; | |
96 | fDigitsList = new int[fMaxDigit]; | |
97 | } | |
98 | ||
99 | // Increase the size of the list if necessary | |
100 | if (fMulDigit >= fMaxDigit) { | |
dd9a6ee3 | 101 | fMaxDigit *= 2; |
102 | int *tempo = new (int[fMaxDigit]); | |
f7336fa3 | 103 | Int_t index; |
104 | for (index = 0; index < fMulDigit; index++) | |
105 | tempo[index] = fDigitsList[index]; | |
106 | delete fDigitsList; | |
107 | fDigitsList = tempo; | |
108 | } | |
109 | ||
110 | fDigitsList[fMulDigit++] = digit; | |
111 | ||
112 | } | |
113 | ||
114 | //_____________________________________________________________________________ | |
115 | void AliTRDrecPoint::SetLocalPosition(TVector3 &pos) | |
116 | { | |
117 | // | |
118 | // Sets the position of the point in the local coordinate system | |
119 | // (row,col,time) and calculates the error matrix in the same | |
120 | // system. | |
121 | // | |
122 | ||
8230f242 | 123 | const Float_t kSq12 = 3.464101615; |
f7336fa3 | 124 | |
125 | // Set the position | |
126 | fLocPos = pos; | |
127 | ||
128 | // Set the error matrix | |
129 | // row: pad-size / sqrt(12) | |
130 | // col: not defined yet | |
131 | // time: bin-size / sqrt(12) | |
71d9fa7b | 132 | Int_t plane = ((AliTRDgeometry *) fGeom)->GetPlane(fDetector); |
133 | Int_t chamber = ((AliTRDgeometry *) fGeom)->GetChamber(fDetector); | |
134 | Int_t sector = ((AliTRDgeometry *) fGeom)->GetSector(fDetector); | |
135 | fLocPosM->operator()(0,0) = ((AliTRDgeometry *) fGeom)->GetRowPadSize(plane | |
136 | ,chamber | |
137 | ,sector) | |
8230f242 | 138 | / kSq12; |
f7336fa3 | 139 | fLocPosM->operator()(1,1) = 0.0; |
140 | fLocPosM->operator()(2,2) = ((AliTRDgeometry *) fGeom)->GetTimeBinSize() | |
8230f242 | 141 | / kSq12; |
f7336fa3 | 142 | |
793ff80c | 143 | // printf("rec. point: row = %f, col = %f, time = %f \n", |
144 | // fLocPos[0],fLocPos[1],fLocPos[2]); | |
145 | ||
f7336fa3 | 146 | } |
793ff80c | 147 | |
148 | //_____________________________________________________________________________ | |
149 | void AliTRDrecPoint::SetTrackingYZ(Float_t sigmaY, Float_t sigmaZ) | |
150 | { | |
151 | // | |
152 | // Sets the position of the point in the local coordinate system | |
153 | // of tracking sector | |
154 | // | |
155 | ||
156 | Int_t plane = ((AliTRDgeometry *) fGeom)->GetPlane(fDetector); | |
157 | Int_t chamber = ((AliTRDgeometry *) fGeom)->GetChamber(fDetector); | |
158 | Int_t sector = ((AliTRDgeometry *) fGeom)->GetSector(fDetector); | |
159 | ||
160 | ||
161 | // Set the position | |
162 | ||
163 | Float_t padRow = fLocPos[0]; // Pad Row position | |
164 | Float_t padCol = fLocPos[1]; // Pad Column position | |
165 | ||
166 | Float_t col0 = ((AliTRDgeometry *) fGeom)->GetCol0(plane); | |
167 | Float_t row0 = ((AliTRDgeometry *) fGeom)->GetRow0(plane,chamber,sector); | |
168 | ||
169 | // Float_t offset = 0.5 * ((AliTRDgeometry *) fGeom)->GetChamberWidth(plane); | |
170 | ||
71d9fa7b | 171 | fY = - (col0 + padCol * ((AliTRDgeometry *) fGeom)->GetColPadSize(plane)); |
172 | fZ = row0 + padRow * ((AliTRDgeometry *) fGeom)->GetRowPadSize(plane | |
173 | ,chamber | |
174 | ,sector); | |
793ff80c | 175 | |
176 | // fSigmaY = sigmaY * sigmaY; | |
177 | // fSigmaZ = sigmaZ * sigmaZ; | |
178 | ||
179 | fSigmaY2 = 0.05 * 0.05; | |
180 | ||
71d9fa7b | 181 | fSigmaZ2 = ((AliTRDgeometry *) fGeom)->GetRowPadSize(plane,chamber,sector) |
182 | * ((AliTRDgeometry *) fGeom)->GetRowPadSize(plane,chamber,sector) | |
183 | / 12.; | |
184 | ||
793ff80c | 185 | } |
186 | ||
187 | //_____________________________________________________________________________ | |
188 | void AliTRDrecPoint::AddTrackIndex(Int_t *track) | |
189 | { | |
190 | // Adds track index. Currently assumed that track is an array of | |
191 | // size 9, and up to 3 track indexes are stored in fTracks[3]. | |
192 | // Indexes are sorted according to: | |
193 | // 1) index of max number of appearances is stored first | |
194 | // 2) if two or more indexes appear equal number of times, the lowest | |
195 | // ones are stored first; | |
196 | ||
197 | const Int_t size = 9; | |
198 | ||
199 | Int_t entries[size][2], i, j, index; | |
200 | ||
201 | Bool_t index_added; | |
202 | ||
203 | for (i=0; i<size; i++) { | |
204 | entries[i][0]=-1; | |
205 | entries[i][1]=0; | |
206 | } | |
207 | ||
208 | ||
209 | for (Int_t k=0; k<size; k++) { | |
210 | index=track[k]; | |
57527628 | 211 | index_added=kFALSE; j=0; |
793ff80c | 212 | if (index >= 0) { |
213 | while ( (!index_added) && ( j < size ) ) { | |
214 | if ((entries[j][0]==index) || (entries[j][1]==0)) { | |
215 | entries[j][0]=index; | |
216 | entries[j][1]=entries[j][1]+1; | |
57527628 | 217 | index_added=kTRUE; |
793ff80c | 218 | } |
219 | j++; | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
224 | // sort by number of appearances and index value | |
225 | Int_t swap=1, tmp0, tmp1; | |
226 | while ( swap > 0) { | |
227 | swap=0; | |
228 | for(i=0; i<(size-1); i++) { | |
229 | if ((entries[i][0] >= 0) && (entries[i+1][0] >= 0)) { | |
230 | if ((entries[i][1] < entries[i+1][1]) || | |
231 | ((entries[i][1] == entries[i+1][1]) && | |
232 | (entries[i][0] > entries[i+1][0]))) { | |
233 | tmp0=entries[i][0]; | |
234 | tmp1=entries[i][1]; | |
235 | entries[i][0]=entries[i+1][0]; | |
236 | entries[i][1]=entries[i+1][1]; | |
237 | entries[i+1][0]=tmp0; | |
238 | entries[i+1][1]=tmp1; | |
239 | swap++; | |
240 | } | |
241 | } | |
242 | } | |
243 | } | |
244 | ||
245 | // set track indexes | |
246 | ||
247 | for(i=0; i<3; i++) { | |
248 | fTracks[i] = entries[i][0]; | |
249 | } | |
250 | ||
251 | return; | |
252 | ||
253 | } |