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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> |
f7336fa3 | 27 | |
94de3818 | 28 | #include "AliRun.h" |
88cb7938 | 29 | #include "AliRunLoader.h" |
30 | #include "AliLoader.h" | |
31 | ||
f7336fa3 | 32 | #include "AliTRDclusterizer.h" |
3e1a3ad8 | 33 | #include "AliTRDcluster.h" |
793ff80c | 34 | #include "AliTRDrecPoint.h" |
35 | #include "AliTRDgeometry.h" | |
3551db50 | 36 | #include "AliTRDcalibDB.h" |
f7336fa3 | 37 | |
38 | ClassImp(AliTRDclusterizer) | |
39 | ||
40 | //_____________________________________________________________________________ | |
41 | AliTRDclusterizer::AliTRDclusterizer():TNamed() | |
42 | { | |
43 | // | |
44 | // AliTRDclusterizer default constructor | |
45 | // | |
46 | ||
3e1a3ad8 | 47 | fClusterTree = NULL; |
bdbb05bb | 48 | fRecPoints = 0; |
3e1a3ad8 | 49 | fVerbose = 0; |
f7336fa3 | 50 | |
51 | } | |
52 | ||
53 | //_____________________________________________________________________________ | |
54 | AliTRDclusterizer::AliTRDclusterizer(const Text_t* name, const Text_t* title) | |
55 | :TNamed(name, title) | |
56 | { | |
57 | // | |
58 | // AliTRDclusterizer default constructor | |
59 | // | |
60 | ||
3e1a3ad8 | 61 | fClusterTree = NULL; |
bdbb05bb | 62 | fRecPoints = 0; |
3e1a3ad8 | 63 | fVerbose = 0; |
f7336fa3 | 64 | |
65 | } | |
66 | ||
8230f242 | 67 | //_____________________________________________________________________________ |
73ae7b59 | 68 | AliTRDclusterizer::AliTRDclusterizer(const AliTRDclusterizer &c):TNamed(c) |
8230f242 | 69 | { |
70 | // | |
71 | // AliTRDclusterizer copy constructor | |
72 | // | |
73 | ||
dd9a6ee3 | 74 | ((AliTRDclusterizer &) c).Copy(*this); |
8230f242 | 75 | |
76 | } | |
77 | ||
f7336fa3 | 78 | //_____________________________________________________________________________ |
79 | AliTRDclusterizer::~AliTRDclusterizer() | |
80 | { | |
8230f242 | 81 | // |
82 | // AliTRDclusterizer destructor | |
83 | // | |
f7336fa3 | 84 | |
bdbb05bb | 85 | if (fRecPoints) { |
86 | fRecPoints->Delete(); | |
87 | delete fRecPoints; | |
88 | } | |
f7336fa3 | 89 | } |
90 | ||
8230f242 | 91 | //_____________________________________________________________________________ |
dd9a6ee3 | 92 | AliTRDclusterizer &AliTRDclusterizer::operator=(const AliTRDclusterizer &c) |
93 | { | |
94 | // | |
95 | // Assignment operator | |
96 | // | |
97 | ||
98 | if (this != &c) ((AliTRDclusterizer &) c).Copy(*this); | |
99 | return *this; | |
100 | ||
101 | } | |
102 | ||
103 | //_____________________________________________________________________________ | |
e0d47c25 | 104 | void AliTRDclusterizer::Copy(TObject &c) const |
8230f242 | 105 | { |
106 | // | |
107 | // Copy function | |
108 | // | |
109 | ||
3e1a3ad8 | 110 | ((AliTRDclusterizer &) c).fClusterTree = NULL; |
bdbb05bb | 111 | ((AliTRDclusterizer &) c).fRecPoints = NULL; |
3e1a3ad8 | 112 | ((AliTRDclusterizer &) c).fVerbose = fVerbose; |
8230f242 | 113 | |
114 | } | |
115 | ||
f7336fa3 | 116 | //_____________________________________________________________________________ |
3e1a3ad8 | 117 | Bool_t AliTRDclusterizer::Open(const Char_t *name, Int_t nEvent) |
f7336fa3 | 118 | { |
119 | // | |
3e1a3ad8 | 120 | // Opens the AliROOT file. Output and input are in the same file |
f7336fa3 | 121 | // |
e191bb57 | 122 | TString evfoldname = AliConfig::GetDefaultEventFolderName(); |
19dd5b2f | 123 | fRunLoader = AliRunLoader::GetRunLoader(evfoldname); |
124 | if (!fRunLoader) | |
125 | fRunLoader = AliRunLoader::Open(name); | |
88cb7938 | 126 | if (!fRunLoader) |
127 | { | |
128 | Error("Open","Can not open session for file %s.",name); | |
129 | return kFALSE; | |
130 | } | |
131 | ||
132 | OpenInput(nEvent); | |
133 | OpenOutput(); | |
3e1a3ad8 | 134 | return kTRUE; |
f7336fa3 | 135 | } |
136 | ||
3e1a3ad8 | 137 | |
138 | //_____________________________________________________________________________ | |
88cb7938 | 139 | Bool_t AliTRDclusterizer::OpenOutput() |
3e1a3ad8 | 140 | { |
141 | // | |
142 | // Open the output file | |
143 | // | |
144 | ||
3e1a3ad8 | 145 | TObjArray *ioArray = 0; |
88cb7938 | 146 | |
147 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
148 | loader->MakeTree("R"); | |
149 | fClusterTree = loader->TreeR(); | |
365d0374 | 150 | fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); |
3e1a3ad8 | 151 | |
3e1a3ad8 | 152 | |
153 | return kTRUE; | |
154 | ||
155 | } | |
156 | ||
157 | //_____________________________________________________________________________ | |
88cb7938 | 158 | Bool_t AliTRDclusterizer::OpenInput(Int_t nEvent) |
f7336fa3 | 159 | { |
160 | // | |
161 | // Opens a ROOT-file with TRD-hits and reads in the digits-tree | |
162 | // | |
163 | ||
164 | // Connect the AliRoot file containing Geometry, Kine, and Hits | |
19dd5b2f | 165 | if (fRunLoader->GetAliRun() == 0x0) fRunLoader->LoadgAlice(); |
88cb7938 | 166 | gAlice = fRunLoader->GetAliRun(); |
f7336fa3 | 167 | |
a3c76cdc | 168 | if (!(gAlice)) { |
88cb7938 | 169 | fRunLoader->LoadgAlice(); |
170 | gAlice = fRunLoader->GetAliRun(); | |
171 | if (!(gAlice)) { | |
172 | printf("AliTRDclusterizer::OpenInput -- "); | |
173 | printf("Could not find AliRun object.\n"); | |
174 | return kFALSE; | |
175 | } | |
a3c76cdc | 176 | } |
f7336fa3 | 177 | |
f7336fa3 | 178 | // Import the Trees for the event nEvent in the file |
bdbb05bb | 179 | fRunLoader->GetEvent(nEvent); |
88cb7938 | 180 | |
f7336fa3 | 181 | return kTRUE; |
182 | ||
183 | } | |
184 | ||
185 | //_____________________________________________________________________________ | |
793ff80c | 186 | Bool_t AliTRDclusterizer::WriteClusters(Int_t det) |
f7336fa3 | 187 | { |
188 | // | |
3e1a3ad8 | 189 | // Fills TRDcluster branch in the tree with the clusters |
793ff80c | 190 | // found in detector = det. For det=-1 writes the tree. |
a3c76cdc | 191 | // |
793ff80c | 192 | |
3e1a3ad8 | 193 | if ((det < -1) || (det >= AliTRDgeometry::Ndet())) { |
194 | printf("AliTRDclusterizer::WriteClusters -- "); | |
195 | printf("Unexpected detector index %d.\n",det); | |
196 | return kFALSE; | |
793ff80c | 197 | } |
3e1a3ad8 | 198 | |
f7336fa3 | 199 | |
3e1a3ad8 | 200 | TBranch *branch = fClusterTree->GetBranch("TRDcluster"); |
201 | if (!branch) { | |
793ff80c | 202 | TObjArray *ioArray = 0; |
3e1a3ad8 | 203 | branch = fClusterTree->Branch("TRDcluster","TObjArray",&ioArray,32000,0); |
793ff80c | 204 | } |
205 | ||
206 | if ((det >= 0) && (det < AliTRDgeometry::Ndet())) { | |
207 | ||
bdbb05bb | 208 | Int_t nRecPoints = RecPoints()->GetEntriesFast(); |
3e1a3ad8 | 209 | TObjArray *detRecPoints = new TObjArray(400); |
210 | ||
211 | for (Int_t i = 0; i < nRecPoints; i++) { | |
bdbb05bb | 212 | AliTRDcluster *c = (AliTRDcluster *) RecPoints()->UncheckedAt(i); |
3e1a3ad8 | 213 | if (det == c->GetDetector()) { |
214 | detRecPoints->AddLast(c); | |
215 | } | |
216 | else { | |
217 | printf("AliTRDclusterizer::WriteClusters --"); | |
218 | printf("Attempt to write a cluster with unexpected detector index\n"); | |
219 | } | |
793ff80c | 220 | } |
221 | ||
3e1a3ad8 | 222 | branch->SetAddress(&detRecPoints); |
223 | fClusterTree->Fill(); | |
224 | ||
d9b8978b | 225 | delete detRecPoints; |
226 | ||
793ff80c | 227 | return kTRUE; |
3e1a3ad8 | 228 | |
793ff80c | 229 | } |
230 | ||
231 | if (det == -1) { | |
232 | ||
19dd5b2f | 233 | Info("WriteClusters","Writing the cluster tree %s for event %d." |
bdbb05bb | 234 | ,fClusterTree->GetName(),fRunLoader->GetEventNumber()); |
c630aafd | 235 | /* |
3e1a3ad8 | 236 | fClusterTree->Write(); |
ba2e024c | 237 | AliTRDgeometry *geo = fTRD->GetGeometry(); |
88cb7938 | 238 | geo->SetName("TRDgeometry"); |
239 | geo->Write(); | |
c630aafd | 240 | */ |
241 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
242 | loader->WriteRecPoints("OVERWRITE"); | |
243 | ||
793ff80c | 244 | return kTRUE; |
3e1a3ad8 | 245 | |
793ff80c | 246 | } |
c630aafd | 247 | /* |
88cb7938 | 248 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); |
249 | loader->WriteDigits("OVERWRITE"); | |
c630aafd | 250 | */ |
3e1a3ad8 | 251 | printf("AliTRDclusterizer::WriteClusters -- "); |
252 | printf("Unexpected detector index %d.\n",det); | |
253 | ||
793ff80c | 254 | return kFALSE; |
88cb7938 | 255 | |
f7336fa3 | 256 | } |
793ff80c | 257 | |
258 | ||
bdbb05bb | 259 | //_____________________________________________________________________________ |
3551db50 | 260 | AliTRDcluster* AliTRDclusterizer::AddCluster(Double_t *pos, Int_t timebin, Int_t det, Double_t amp |
828b670e | 261 | , Int_t *tracks, Double_t *sig, Int_t iType, Float_t center) |
bdbb05bb | 262 | { |
263 | // | |
264 | // Add a cluster for the TRD | |
265 | // | |
793ff80c | 266 | |
bdbb05bb | 267 | AliTRDcluster *c = new AliTRDcluster(); |
268 | ||
269 | c->SetDetector(det); | |
270 | c->AddTrackIndex(tracks); | |
271 | c->SetQ(amp); | |
3551db50 | 272 | c->SetX(pos[2]); |
bdbb05bb | 273 | c->SetY(pos[0]); |
274 | c->SetZ(pos[1]); | |
275 | c->SetSigmaY2(sig[0]); | |
276 | c->SetSigmaZ2(sig[1]); | |
3551db50 | 277 | c->SetLocalTimeBin(timebin); |
828b670e | 278 | c->SetCenter(center); |
bdbb05bb | 279 | switch (iType) { |
280 | case 0: | |
281 | c->Set2pad(); | |
282 | break; | |
283 | case 1: | |
284 | c->Set3pad(); | |
285 | break; | |
286 | case 2: | |
287 | c->Set4pad(); | |
288 | break; | |
289 | case 3: | |
290 | c->Set5pad(); | |
291 | break; | |
292 | case 4: | |
293 | c->SetLarge(); | |
294 | break; | |
295 | }; | |
296 | ||
297 | RecPoints()->Add(c); | |
c85a4951 | 298 | return c; |
bdbb05bb | 299 | } |
3551db50 | 300 | |
301 | //_____________________________________________________________________________ | |
88719a08 | 302 | Double_t AliTRDclusterizer::CalcXposFromTimebin(Float_t timebin, Int_t idet, Int_t col, Int_t row) |
3551db50 | 303 | { |
304 | // | |
305 | // Calculates the local x position in the detector from the timebin, depends on the drift velocity | |
88719a08 | 306 | // and t0 |
3551db50 | 307 | // |
308 | ||
309 | AliTRDcalibDB* calibration = AliTRDcalibDB::Instance(); | |
310 | if (!calibration) | |
311 | return -1; | |
88719a08 | 312 | |
313 | Float_t vdrift = calibration->GetVdrift(idet, col, row); | |
314 | Float_t t0 = calibration->GetT0(idet, col, row); | |
3551db50 | 315 | Float_t samplingFrequency = calibration->GetSamplingFrequency(); |
88719a08 | 316 | |
317 | timebin -= t0; | |
318 | ||
319 | return timebin / samplingFrequency * vdrift; | |
3551db50 | 320 | } |