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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 | ||
88cb7938 | 16 | /* $Id$ */ |
f7336fa3 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // TRD cluster finder base class // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
94de3818 | 24 | #include <TROOT.h> |
25 | #include <TTree.h> | |
793ff80c | 26 | #include <TFile.h> |
6d50f529 | 27 | #include <TObjArray.h> |
f7336fa3 | 28 | |
88cb7938 | 29 | #include "AliRunLoader.h" |
30 | #include "AliLoader.h" | |
6d50f529 | 31 | #include "AliLog.h" |
88cb7938 | 32 | |
f7336fa3 | 33 | #include "AliTRDclusterizer.h" |
3e1a3ad8 | 34 | #include "AliTRDcluster.h" |
793ff80c | 35 | #include "AliTRDrecPoint.h" |
36 | #include "AliTRDgeometry.h" | |
3551db50 | 37 | #include "AliTRDcalibDB.h" |
b43a3e17 | 38 | #include "AliTRDCommonParam.h" |
f7336fa3 | 39 | |
40 | ClassImp(AliTRDclusterizer) | |
41 | ||
42 | //_____________________________________________________________________________ | |
6d50f529 | 43 | AliTRDclusterizer::AliTRDclusterizer() |
44 | :TNamed() | |
45 | ,fRunLoader(NULL) | |
46 | ,fClusterTree(NULL) | |
47 | ,fRecPoints(NULL) | |
f7336fa3 | 48 | { |
49 | // | |
50 | // AliTRDclusterizer default constructor | |
51 | // | |
52 | ||
f7336fa3 | 53 | } |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | AliTRDclusterizer::AliTRDclusterizer(const Text_t* name, const Text_t* title) | |
6d50f529 | 57 | :TNamed(name,title) |
58 | ,fRunLoader(NULL) | |
59 | ,fClusterTree(NULL) | |
60 | ,fRecPoints(NULL) | |
f7336fa3 | 61 | { |
62 | // | |
6d50f529 | 63 | // AliTRDclusterizer constructor |
f7336fa3 | 64 | // |
65 | ||
f7336fa3 | 66 | } |
67 | ||
8230f242 | 68 | //_____________________________________________________________________________ |
6d50f529 | 69 | AliTRDclusterizer::AliTRDclusterizer(const AliTRDclusterizer &c) |
70 | :TNamed(c) | |
71 | ,fRunLoader(NULL) | |
72 | ,fClusterTree(NULL) | |
73 | ,fRecPoints(NULL) | |
8230f242 | 74 | { |
75 | // | |
76 | // AliTRDclusterizer copy constructor | |
77 | // | |
78 | ||
8230f242 | 79 | } |
80 | ||
f7336fa3 | 81 | //_____________________________________________________________________________ |
82 | AliTRDclusterizer::~AliTRDclusterizer() | |
83 | { | |
8230f242 | 84 | // |
85 | // AliTRDclusterizer destructor | |
86 | // | |
f7336fa3 | 87 | |
bdbb05bb | 88 | if (fRecPoints) { |
89 | fRecPoints->Delete(); | |
90 | delete fRecPoints; | |
91 | } | |
6d50f529 | 92 | |
f7336fa3 | 93 | } |
94 | ||
8230f242 | 95 | //_____________________________________________________________________________ |
dd9a6ee3 | 96 | AliTRDclusterizer &AliTRDclusterizer::operator=(const AliTRDclusterizer &c) |
97 | { | |
98 | // | |
99 | // Assignment operator | |
100 | // | |
101 | ||
b43a3e17 | 102 | if (this != &c) { |
103 | ((AliTRDclusterizer &) c).Copy(*this); | |
104 | } | |
dd9a6ee3 | 105 | return *this; |
106 | ||
107 | } | |
108 | ||
109 | //_____________________________________________________________________________ | |
e0d47c25 | 110 | void AliTRDclusterizer::Copy(TObject &c) const |
8230f242 | 111 | { |
112 | // | |
113 | // Copy function | |
114 | // | |
115 | ||
3e1a3ad8 | 116 | ((AliTRDclusterizer &) c).fClusterTree = NULL; |
bdbb05bb | 117 | ((AliTRDclusterizer &) c).fRecPoints = NULL; |
8230f242 | 118 | |
119 | } | |
120 | ||
f7336fa3 | 121 | //_____________________________________________________________________________ |
3e1a3ad8 | 122 | Bool_t AliTRDclusterizer::Open(const Char_t *name, Int_t nEvent) |
f7336fa3 | 123 | { |
124 | // | |
3e1a3ad8 | 125 | // Opens the AliROOT file. Output and input are in the same file |
f7336fa3 | 126 | // |
6d50f529 | 127 | |
e191bb57 | 128 | TString evfoldname = AliConfig::GetDefaultEventFolderName(); |
6d50f529 | 129 | fRunLoader = AliRunLoader::GetRunLoader(evfoldname); |
130 | ||
131 | if (!fRunLoader) { | |
19dd5b2f | 132 | fRunLoader = AliRunLoader::Open(name); |
6d50f529 | 133 | } |
134 | ||
135 | if (!fRunLoader) { | |
136 | AliError(Form("Can not open session for file %s.",name)); | |
137 | return kFALSE; | |
138 | } | |
88cb7938 | 139 | |
140 | OpenInput(nEvent); | |
141 | OpenOutput(); | |
6d50f529 | 142 | |
3e1a3ad8 | 143 | return kTRUE; |
f7336fa3 | 144 | |
6d50f529 | 145 | } |
3e1a3ad8 | 146 | |
147 | //_____________________________________________________________________________ | |
88cb7938 | 148 | Bool_t AliTRDclusterizer::OpenOutput() |
3e1a3ad8 | 149 | { |
150 | // | |
151 | // Open the output file | |
152 | // | |
153 | ||
3e1a3ad8 | 154 | TObjArray *ioArray = 0; |
88cb7938 | 155 | |
156 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
157 | loader->MakeTree("R"); | |
6d50f529 | 158 | |
88cb7938 | 159 | fClusterTree = loader->TreeR(); |
365d0374 | 160 | fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); |
3e1a3ad8 | 161 | |
3e1a3ad8 | 162 | return kTRUE; |
163 | ||
164 | } | |
165 | ||
166 | //_____________________________________________________________________________ | |
88cb7938 | 167 | Bool_t AliTRDclusterizer::OpenInput(Int_t nEvent) |
f7336fa3 | 168 | { |
169 | // | |
170 | // Opens a ROOT-file with TRD-hits and reads in the digits-tree | |
171 | // | |
172 | ||
f7336fa3 | 173 | // Import the Trees for the event nEvent in the file |
bdbb05bb | 174 | fRunLoader->GetEvent(nEvent); |
88cb7938 | 175 | |
f7336fa3 | 176 | return kTRUE; |
177 | ||
178 | } | |
179 | ||
180 | //_____________________________________________________________________________ | |
793ff80c | 181 | Bool_t AliTRDclusterizer::WriteClusters(Int_t det) |
f7336fa3 | 182 | { |
183 | // | |
3e1a3ad8 | 184 | // Fills TRDcluster branch in the tree with the clusters |
793ff80c | 185 | // found in detector = det. For det=-1 writes the tree. |
a3c76cdc | 186 | // |
793ff80c | 187 | |
6d50f529 | 188 | if ((det < -1) || |
189 | (det >= AliTRDgeometry::Ndet())) { | |
190 | AliError(Form("Unexpected detector index %d.\n",det)); | |
3e1a3ad8 | 191 | return kFALSE; |
793ff80c | 192 | } |
3e1a3ad8 | 193 | |
3e1a3ad8 | 194 | TBranch *branch = fClusterTree->GetBranch("TRDcluster"); |
195 | if (!branch) { | |
793ff80c | 196 | TObjArray *ioArray = 0; |
3e1a3ad8 | 197 | branch = fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); |
793ff80c | 198 | } |
199 | ||
6d50f529 | 200 | if ((det >= 0) && |
201 | (det < AliTRDgeometry::Ndet())) { | |
793ff80c | 202 | |
bdbb05bb | 203 | Int_t nRecPoints = RecPoints()->GetEntriesFast(); |
3e1a3ad8 | 204 | TObjArray *detRecPoints = new TObjArray(400); |
205 | ||
206 | for (Int_t i = 0; i < nRecPoints; i++) { | |
bdbb05bb | 207 | AliTRDcluster *c = (AliTRDcluster *) RecPoints()->UncheckedAt(i); |
3e1a3ad8 | 208 | if (det == c->GetDetector()) { |
209 | detRecPoints->AddLast(c); | |
210 | } | |
211 | else { | |
6d50f529 | 212 | AliError("Attempt to write a cluster with unexpected detector index\n"); |
3e1a3ad8 | 213 | } |
793ff80c | 214 | } |
215 | ||
3e1a3ad8 | 216 | branch->SetAddress(&detRecPoints); |
217 | fClusterTree->Fill(); | |
218 | ||
d9b8978b | 219 | delete detRecPoints; |
220 | ||
793ff80c | 221 | return kTRUE; |
3e1a3ad8 | 222 | |
793ff80c | 223 | } |
224 | ||
225 | if (det == -1) { | |
226 | ||
6d50f529 | 227 | AliInfo(Form("Writing the cluster tree %s for event %d." |
228 | ,fClusterTree->GetName(),fRunLoader->GetEventNumber())); | |
229 | ||
a6dd11e9 | 230 | if (fRecPoints) { |
231 | ||
232 | branch->SetAddress(&fRecPoints); | |
233 | ||
234 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); | |
235 | loader->WriteRecPoints("OVERWRITE"); | |
c630aafd | 236 | |
a6dd11e9 | 237 | } |
238 | else { | |
239 | ||
240 | AliError("Cluster tree does not exist. Cannot write clusters.\n"); | |
241 | return kFALSE; | |
242 | ||
243 | } | |
244 | ||
793ff80c | 245 | return kTRUE; |
3e1a3ad8 | 246 | |
793ff80c | 247 | } |
6d50f529 | 248 | |
249 | AliError(Form("Unexpected detector index %d.\n",det)); | |
3e1a3ad8 | 250 | |
793ff80c | 251 | return kFALSE; |
88cb7938 | 252 | |
f7336fa3 | 253 | } |
793ff80c | 254 | |
255 | ||
bdbb05bb | 256 | //_____________________________________________________________________________ |
6d50f529 | 257 | AliTRDcluster* AliTRDclusterizer::AddCluster(Double_t *pos, Int_t timebin |
258 | , Int_t det, Double_t amp | |
259 | , Int_t *tracks, Double_t *sig | |
260 | , Int_t iType, Float_t center) | |
bdbb05bb | 261 | { |
262 | // | |
263 | // Add a cluster for the TRD | |
264 | // | |
793ff80c | 265 | |
bdbb05bb | 266 | AliTRDcluster *c = new AliTRDcluster(); |
267 | ||
268 | c->SetDetector(det); | |
bdbb05bb | 269 | c->SetQ(amp); |
3551db50 | 270 | c->SetX(pos[2]); |
bdbb05bb | 271 | c->SetY(pos[0]); |
272 | c->SetZ(pos[1]); | |
273 | c->SetSigmaY2(sig[0]); | |
274 | c->SetSigmaZ2(sig[1]); | |
3551db50 | 275 | c->SetLocalTimeBin(timebin); |
828b670e | 276 | c->SetCenter(center); |
6d50f529 | 277 | |
a6dd11e9 | 278 | if (tracks) { |
279 | c->AddTrackIndex(tracks); | |
280 | } | |
281 | ||
bdbb05bb | 282 | switch (iType) { |
283 | case 0: | |
284 | c->Set2pad(); | |
285 | break; | |
286 | case 1: | |
287 | c->Set3pad(); | |
288 | break; | |
289 | case 2: | |
290 | c->Set4pad(); | |
291 | break; | |
292 | case 3: | |
293 | c->Set5pad(); | |
294 | break; | |
295 | case 4: | |
296 | c->SetLarge(); | |
297 | break; | |
298 | }; | |
299 | ||
300 | RecPoints()->Add(c); | |
c85a4951 | 301 | return c; |
6d50f529 | 302 | |
bdbb05bb | 303 | } |
3551db50 | 304 | |
305 | //_____________________________________________________________________________ | |
6d50f529 | 306 | Double_t AliTRDclusterizer::CalcXposFromTimebin(Float_t timebin, Int_t idet |
307 | , Int_t col, Int_t row) | |
3551db50 | 308 | { |
309 | // | |
6d50f529 | 310 | // Calculates the local x position in the detector from the timebin, |
311 | // depends on the drift velocity and t0 | |
3551db50 | 312 | // |
313 | ||
b43a3e17 | 314 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
6d50f529 | 315 | if (!calibration) { |
a6dd11e9 | 316 | AliError("Cannot find calibration object"); |
3551db50 | 317 | return -1; |
6d50f529 | 318 | } |
b43a3e17 | 319 | AliTRDCommonParam *parCom = AliTRDCommonParam::Instance(); |
320 | if (!parCom) { | |
321 | AliError("Could not get common parameters\n"); | |
322 | return kFALSE; | |
323 | } | |
88719a08 | 324 | |
6d50f529 | 325 | Float_t vdrift = calibration->GetVdrift(idet,col,row); |
326 | Float_t t0 = calibration->GetT0(idet,col,row); | |
b43a3e17 | 327 | Float_t samplingFrequency = parCom->GetSamplingFrequency(); |
88719a08 | 328 | |
329 | timebin -= t0; | |
330 | ||
331 | return timebin / samplingFrequency * vdrift; | |
6d50f529 | 332 | |
333 | } | |
334 | ||
335 | //_____________________________________________________________________________ | |
336 | void AliTRDclusterizer::ResetRecPoints() | |
337 | { | |
338 | // | |
339 | // Resets the list of rec points | |
340 | // | |
341 | ||
342 | if (fRecPoints) { | |
343 | fRecPoints->Delete(); | |
344 | } | |
345 | ||
346 | } | |
347 | ||
348 | //_____________________________________________________________________________ | |
349 | TObjArray* AliTRDclusterizer::RecPoints() | |
350 | { | |
351 | // | |
352 | // Returns the list of rec points | |
353 | // | |
354 | ||
355 | if (!fRecPoints) { | |
356 | fRecPoints = new TObjArray(400); | |
357 | } | |
358 | ||
359 | return fRecPoints; | |
360 | ||
3551db50 | 361 | } |