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7dcaf913 | 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 | // // | |
18 | // Date : March 25 2004 // | |
19 | // This reads the file PMD.RecPoints.root(TreeR), // | |
20 | // calls the Clustering algorithm and stores the // | |
21 | // clustering output in PMD.RecPoints.root(TreeR) // | |
22 | // // | |
23 | //-----------------------------------------------------// | |
24 | ||
25 | #include <Riostream.h> | |
26 | #include <TMath.h> | |
7dcaf913 | 27 | #include <TTree.h> |
7dcaf913 | 28 | #include <TObjArray.h> |
29 | #include <TClonesArray.h> | |
30 | #include <TFile.h> | |
31 | #include <TBranch.h> | |
32 | #include <TNtuple.h> | |
33 | #include <TParticle.h> | |
34 | ||
35 | #include "AliPMDcluster.h" | |
36 | #include "AliPMDclupid.h" | |
37 | #include "AliPMDrecpoint1.h" | |
b0e4d1e1 | 38 | #include "AliPMDrecdata.h" |
39 | #include "AliPMDrechit.h" | |
7dcaf913 | 40 | #include "AliPMDUtility.h" |
41 | #include "AliPMDDiscriminator.h" | |
26f1ae17 | 42 | #include "AliPMDEmpDiscriminator.h" |
7dcaf913 | 43 | #include "AliPMDtracker.h" |
44 | ||
45 | #include "AliESDPmdTrack.h" | |
af885e0f | 46 | #include "AliESDEvent.h" |
ecee2a1a | 47 | #include "AliLog.h" |
7dcaf913 | 48 | |
49 | ClassImp(AliPMDtracker) | |
50 | ||
51 | AliPMDtracker::AliPMDtracker(): | |
52 | fTreeR(0), | |
722ccc67 | 53 | fRecpoints(new TClonesArray("AliPMDrecpoint1", 10)), |
b0e4d1e1 | 54 | fRechits(new TClonesArray("AliPMDrechit", 10)), |
7dcaf913 | 55 | fPMDcontin(new TObjArray()), |
56 | fPMDcontout(new TObjArray()), | |
7dcaf913 | 57 | fPMDutil(new AliPMDUtility()), |
58 | fPMDrecpoint(0), | |
59 | fPMDclin(0), | |
60 | fPMDclout(0), | |
7dcaf913 | 61 | fXvertex(0.), |
62 | fYvertex(0.), | |
63 | fZvertex(0.), | |
64 | fSigmaX(0.), | |
65 | fSigmaY(0.), | |
66 | fSigmaZ(0.) | |
67 | { | |
68 | // | |
69 | // Default Constructor | |
70 | // | |
71 | } | |
a48edddd | 72 | //--------------------------------------------------------------------// |
73 | AliPMDtracker:: AliPMDtracker(const AliPMDtracker & /* tracker */): | |
2332574a | 74 | TObject(/* tracker */), |
75 | fTreeR(0), | |
76 | fRecpoints(NULL), | |
b0e4d1e1 | 77 | fRechits(NULL), |
2332574a | 78 | fPMDcontin(NULL), |
79 | fPMDcontout(NULL), | |
80 | fPMDutil(NULL), | |
81 | fPMDrecpoint(0), | |
82 | fPMDclin(0), | |
83 | fPMDclout(0), | |
84 | fXvertex(0.), | |
85 | fYvertex(0.), | |
86 | fZvertex(0.), | |
87 | fSigmaX(0.), | |
88 | fSigmaY(0.), | |
89 | fSigmaZ(0.) | |
a48edddd | 90 | { |
91 | // copy constructor | |
92 | AliError("Copy constructor not allowed"); | |
93 | } | |
94 | ||
95 | //--------------------------------------------------------------------// | |
96 | AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */) | |
97 | { | |
98 | // assignment operator | |
99 | AliError("Assignment operator not allowed"); | |
100 | return *this; | |
101 | } | |
102 | ||
7dcaf913 | 103 | //--------------------------------------------------------------------// |
104 | AliPMDtracker::~AliPMDtracker() | |
105 | { | |
106 | // Destructor | |
107 | if (fRecpoints) | |
108 | { | |
722ccc67 | 109 | fRecpoints->Clear(); |
7dcaf913 | 110 | } |
b0e4d1e1 | 111 | if (fRechits) |
112 | { | |
113 | fRechits->Clear(); | |
114 | } | |
115 | ||
7dcaf913 | 116 | if (fPMDcontin) |
117 | { | |
118 | fPMDcontin->Delete(); | |
119 | delete fPMDcontin; | |
120 | fPMDcontin=0; | |
a1e9ac09 | 121 | |
7dcaf913 | 122 | } |
123 | if (fPMDcontout) | |
722ccc67 | 124 | { |
7dcaf913 | 125 | fPMDcontout->Delete(); |
126 | delete fPMDcontout; | |
127 | fPMDcontout=0; | |
a1e9ac09 | 128 | |
7dcaf913 | 129 | } |
316c6cd9 | 130 | delete fPMDutil; |
7dcaf913 | 131 | } |
132 | //--------------------------------------------------------------------// | |
133 | void AliPMDtracker::LoadClusters(TTree *treein) | |
134 | { | |
135 | // Load the Reconstructed tree | |
136 | fTreeR = treein; | |
137 | } | |
138 | //--------------------------------------------------------------------// | |
af885e0f | 139 | void AliPMDtracker::Clusters2Tracks(AliESDEvent *event) |
7dcaf913 | 140 | { |
141 | // Converts digits to recpoints after running clustering | |
142 | // algorithm on CPV plane and PREshower plane | |
143 | // | |
144 | ||
145 | Int_t idet; | |
146 | Int_t ismn; | |
b0e4d1e1 | 147 | Int_t trackno, trackpid; |
26f1ae17 | 148 | Float_t clusdata[6]; |
b0e4d1e1 | 149 | |
150 | Int_t *irow; | |
151 | Int_t *icol; | |
152 | Int_t *itra; | |
153 | Int_t *ipid; | |
154 | Float_t *cadc; | |
155 | ||
156 | AliPMDrechit *rechit = 0x0; | |
7dcaf913 | 157 | |
158 | TBranch *branch = fTreeR->GetBranch("PMDRecpoint"); | |
ecee2a1a | 159 | if (!branch) |
160 | { | |
161 | AliError("PMDRecpoint branch not found"); | |
162 | return; | |
163 | } | |
7dcaf913 | 164 | branch->SetAddress(&fRecpoints); |
b0e4d1e1 | 165 | |
166 | TBranch *branch1 = fTreeR->GetBranch("PMDRechit"); | |
167 | if (!branch1) | |
168 | { | |
169 | AliError("PMDRechit branch not found"); | |
170 | return; | |
171 | } | |
172 | branch1->SetAddress(&fRechits); | |
d270ca46 | 173 | |
174 | Int_t ncrhit = 0; | |
26f1ae17 | 175 | Int_t nmodules = (Int_t) branch->GetEntries(); |
176 | ||
ecee2a1a | 177 | AliDebug(1,Form("Number of modules filled in treeR = %d",nmodules)); |
7dcaf913 | 178 | for (Int_t imodule = 0; imodule < nmodules; imodule++) |
179 | { | |
26f1ae17 | 180 | branch->GetEntry(imodule); |
7dcaf913 | 181 | Int_t nentries = fRecpoints->GetLast(); |
ecee2a1a | 182 | AliDebug(2,Form("Number of clusters per modules filled in treeR = %d" |
183 | ,nentries)); | |
b0e4d1e1 | 184 | |
7dcaf913 | 185 | for(Int_t ient = 0; ient < nentries+1; ient++) |
186 | { | |
187 | fPMDrecpoint = (AliPMDrecpoint1*)fRecpoints->UncheckedAt(ient); | |
188 | idet = fPMDrecpoint->GetDetector(); | |
189 | ismn = fPMDrecpoint->GetSMNumber(); | |
190 | clusdata[0] = fPMDrecpoint->GetClusX(); | |
191 | clusdata[1] = fPMDrecpoint->GetClusY(); | |
192 | clusdata[2] = fPMDrecpoint->GetClusADC(); | |
193 | clusdata[3] = fPMDrecpoint->GetClusCells(); | |
26f1ae17 | 194 | clusdata[4] = fPMDrecpoint->GetClusSigmaX(); |
195 | clusdata[5] = fPMDrecpoint->GetClusSigmaY(); | |
4b1e197e | 196 | |
e6ba3040 | 197 | if (clusdata[4] >= 0. && clusdata[5] >= 0.) |
920e13db | 198 | { |
b0e4d1e1 | 199 | // extract the associated cell information |
200 | branch1->GetEntry(ncrhit); | |
201 | Int_t nenbr1 = fRechits->GetLast() + 1; | |
202 | ||
203 | irow = new Int_t[nenbr1]; | |
204 | icol = new Int_t[nenbr1]; | |
205 | itra = new Int_t[nenbr1]; | |
206 | ipid = new Int_t[nenbr1]; | |
207 | cadc = new Float_t[nenbr1]; | |
4b1e197e | 208 | |
b0e4d1e1 | 209 | for (Int_t ient1 = 0; ient1 < nenbr1; ient1++) |
210 | { | |
211 | rechit = (AliPMDrechit*)fRechits->UncheckedAt(ient1); | |
212 | //irow[ient1] = rechit->GetCellX(); | |
213 | //icol[ient1] = rechit->GetCellY(); | |
214 | itra[ient1] = rechit->GetCellTrack(); | |
215 | ipid[ient1] = rechit->GetCellPid(); | |
216 | cadc[ient1] = rechit->GetCellAdc(); | |
217 | } | |
4b1e197e | 218 | if (idet == 0) |
219 | { | |
220 | AssignTrPidToCluster(nenbr1, itra, ipid, cadc, | |
221 | trackno, trackpid); | |
222 | } | |
223 | else if (idet == 1) | |
224 | { | |
225 | trackno = itra[0]; | |
226 | trackpid = ipid[0]; | |
227 | } | |
b0e4d1e1 | 228 | |
229 | delete [] irow; | |
230 | delete [] icol; | |
231 | delete [] itra; | |
232 | delete [] ipid; | |
233 | delete [] cadc; | |
234 | ||
235 | fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata); | |
920e13db | 236 | fPMDcontin->Add(fPMDclin); |
b0e4d1e1 | 237 | |
238 | ncrhit++; | |
920e13db | 239 | } |
7dcaf913 | 240 | } |
241 | } | |
242 | ||
26f1ae17 | 243 | AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator(); |
244 | pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout); | |
7dcaf913 | 245 | |
50555ba1 | 246 | const Float_t kzpos = 361.5; // middle of the PMD |
01c4d84a | 247 | |
e38d8aee | 248 | Int_t ix = -1, iy = -1; |
b0e4d1e1 | 249 | Int_t det,smn,trno,trpid,mstat; |
7dcaf913 | 250 | Float_t xpos,ypos; |
b0e4d1e1 | 251 | Float_t adc, ncell, radx, rady; |
01c4d84a | 252 | Float_t xglobal = 0., yglobal = 0., zglobal = 0; |
7dcaf913 | 253 | Float_t pid; |
254 | ||
7dcaf913 | 255 | |
256 | Int_t nentries2 = fPMDcontout->GetEntries(); | |
ecee2a1a | 257 | AliDebug(1,Form("Number of clusters coming after discrimination = %d" |
258 | ,nentries2)); | |
7dcaf913 | 259 | for (Int_t ient1 = 0; ient1 < nentries2; ient1++) |
260 | { | |
261 | fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1); | |
262 | ||
263 | det = fPMDclout->GetDetector(); | |
264 | smn = fPMDclout->GetSMN(); | |
b0e4d1e1 | 265 | trno = fPMDclout->GetClusTrackNo(); |
266 | trpid = fPMDclout->GetClusTrackPid(); | |
267 | mstat = fPMDclout->GetClusMatching(); | |
7dcaf913 | 268 | xpos = fPMDclout->GetClusX(); |
269 | ypos = fPMDclout->GetClusY(); | |
270 | adc = fPMDclout->GetClusADC(); | |
271 | ncell = fPMDclout->GetClusCells(); | |
b0e4d1e1 | 272 | radx = fPMDclout->GetClusSigmaX(); |
6db43724 | 273 | // Here in the variable "rady" we are keeping the row and col |
274 | // of the single isolated cluster having ncell = 1 for offline | |
275 | // calibration | |
276 | ||
277 | if ((radx > 999. && radx < 1000.) && ncell == 1) | |
278 | { | |
279 | if (smn < 12) | |
280 | { | |
281 | ix = (Int_t) (ypos +0.5); | |
282 | iy = (Int_t) xpos; | |
283 | } | |
284 | else if (smn > 12 && smn < 24) | |
285 | { | |
286 | ix = (Int_t) xpos; | |
287 | iy = (Int_t) (ypos +0.5); | |
288 | } | |
289 | rady = (Float_t) (ix*100 + iy); | |
290 | } | |
291 | else | |
292 | { | |
293 | rady = fPMDclout->GetClusSigmaY(); | |
294 | } | |
7dcaf913 | 295 | pid = fPMDclout->GetClusPID(); |
296 | ||
7dcaf913 | 297 | // |
298 | /********************************************************************** | |
299 | * det : Detector, 0: PRE & 1:CPV * | |
01c4d84a | 300 | * smn : Serial Module Number 0 to 23 for each plane * |
7dcaf913 | 301 | * xpos : x-position of the cluster * |
302 | * ypos : y-position of the cluster * | |
303 | * THESE xpos & ypos are not the true xpos and ypos * | |
304 | * for some of the unit modules. They are rotated. * | |
305 | * adc : ADC contained in the cluster * | |
306 | * ncell : Number of cells contained in the cluster * | |
307 | * rad : radius of the cluster (1d fit) * | |
7dcaf913 | 308 | **********************************************************************/ |
309 | // | |
01c4d84a | 310 | |
311 | fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal); | |
26f1ae17 | 312 | |
313 | if (det == 0) | |
314 | { | |
50555ba1 | 315 | zglobal = kzpos + 1.6; // PREshower plane |
26f1ae17 | 316 | } |
317 | else if (det == 1) | |
318 | { | |
50555ba1 | 319 | zglobal = kzpos - 1.7; // CPV plane |
26f1ae17 | 320 | } |
321 | ||
7dcaf913 | 322 | // Fill ESD |
323 | ||
324 | AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack(); | |
325 | ||
326 | esdpmdtr->SetDetector(det); | |
c6f4d28b | 327 | esdpmdtr->SetSmn(smn); |
328 | esdpmdtr->SetClusterTrackNo(trno); | |
329 | esdpmdtr->SetClusterTrackPid(trpid); | |
330 | esdpmdtr->SetClusterMatching(mstat); | |
331 | ||
26f1ae17 | 332 | esdpmdtr->SetClusterX(xglobal); |
333 | esdpmdtr->SetClusterY(yglobal); | |
334 | esdpmdtr->SetClusterZ(zglobal); | |
7dcaf913 | 335 | esdpmdtr->SetClusterADC(adc); |
26f1ae17 | 336 | esdpmdtr->SetClusterCells(ncell); |
7dcaf913 | 337 | esdpmdtr->SetClusterPID(pid); |
c6f4d28b | 338 | esdpmdtr->SetClusterSigmaX(radx); |
339 | esdpmdtr->SetClusterSigmaY(rady); | |
7dcaf913 | 340 | |
341 | event->AddPmdTrack(esdpmdtr); | |
342 | } | |
a1e9ac09 | 343 | |
344 | fPMDcontin->Delete(); | |
345 | fPMDcontout->Delete(); | |
346 | ||
b0e4d1e1 | 347 | } |
348 | //--------------------------------------------------------------------// | |
349 | void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra, | |
350 | Int_t *ipid, Float_t *cadc, | |
351 | Int_t &trackno, Int_t &trackpid) | |
352 | { | |
353 | // assign the track number and the corresponding pid to a cluster | |
354 | // split cluster part will be done at the time of calculating eff/pur | |
355 | ||
356 | Int_t *phentry = new Int_t [nentry]; | |
a6621fb4 | 357 | Int_t *hadentry = new Int_t [nentry]; |
b0e4d1e1 | 358 | Int_t *trenergy = 0x0; |
a6621fb4 | 359 | Int_t *trpid = 0x0; |
b0e4d1e1 | 360 | Int_t *sortcoord = 0x0; |
361 | ||
362 | Int_t ngtrack = 0; | |
a6621fb4 | 363 | Int_t nhtrack = 0; |
b0e4d1e1 | 364 | for (Int_t i = 0; i < nentry; i++) |
365 | { | |
366 | phentry[i] = -1; | |
a6621fb4 | 367 | hadentry[i] = -1; |
368 | ||
b0e4d1e1 | 369 | if (ipid[i] == 22) |
370 | { | |
371 | phentry[ngtrack] = i; | |
372 | ngtrack++; | |
373 | } | |
a6621fb4 | 374 | else if (ipid[i] != 22) |
375 | { | |
376 | hadentry[nhtrack] = i; | |
377 | nhtrack++; | |
378 | } | |
b0e4d1e1 | 379 | } |
4b1e197e | 380 | |
a6621fb4 | 381 | Int_t nghadtrack = ngtrack + nhtrack; |
382 | ||
b0e4d1e1 | 383 | if (ngtrack == 0) |
384 | { | |
385 | // hadron track | |
386 | // no need of track number, set to -1 | |
387 | trackpid = 8; | |
388 | trackno = -1; | |
389 | } | |
a6621fb4 | 390 | else if (ngtrack >= 1) |
b0e4d1e1 | 391 | { |
a6621fb4 | 392 | // one or more than one photon track + charged track |
393 | // find out which track deposits maximum energy and | |
394 | // assign that track number and track pid | |
395 | ||
396 | trenergy = new Int_t [nghadtrack]; | |
397 | trpid = new Int_t [nghadtrack]; | |
398 | sortcoord = new Int_t [nghadtrack]; | |
b0e4d1e1 | 399 | for (Int_t i = 0; i < ngtrack; i++) |
400 | { | |
401 | trenergy[i] = 0.; | |
a6621fb4 | 402 | trpid[i] = -1; |
b0e4d1e1 | 403 | for (Int_t j = 0; j < nentry; j++) |
404 | { | |
405 | if (ipid[j] == 22 && itra[j] == itra[phentry[i]]) | |
406 | { | |
407 | trenergy[i] += cadc[j]; | |
a6621fb4 | 408 | trpid[i] = 22; |
409 | } | |
410 | } | |
411 | } | |
412 | for (Int_t i = ngtrack; i < nghadtrack; i++) | |
413 | { | |
414 | trenergy[i] = 0.; | |
415 | trpid[i] = -1; | |
416 | for (Int_t j = 0; j < nentry; j++) | |
417 | { | |
418 | if (ipid[j] != 22 && itra[j] == itra[hadentry[i-ngtrack]]) | |
419 | { | |
420 | trenergy[i] += cadc[j]; | |
421 | trpid[i] = ipid[j]; | |
b0e4d1e1 | 422 | } |
423 | } | |
424 | } | |
4b1e197e | 425 | |
b0e4d1e1 | 426 | Bool_t jsort = true; |
a6621fb4 | 427 | TMath::Sort(nghadtrack,trenergy,sortcoord,jsort); |
4b1e197e | 428 | |
b0e4d1e1 | 429 | Int_t gtr = sortcoord[0]; |
a6621fb4 | 430 | if (trpid[gtr] == 22) |
431 | { | |
432 | trackpid = 22; | |
433 | trackno = itra[phentry[gtr]]; // highest adc track | |
434 | } | |
435 | else | |
436 | { | |
437 | trackpid = 8; | |
438 | trackno = -1; | |
439 | } | |
4b1e197e | 440 | |
b0e4d1e1 | 441 | delete [] trenergy; |
a6621fb4 | 442 | delete [] trpid; |
b0e4d1e1 | 443 | delete [] sortcoord; |
4b1e197e | 444 | |
a6621fb4 | 445 | } // end of ngtrack >= 1 |
4b1e197e | 446 | |
7dcaf913 | 447 | } |
448 | //--------------------------------------------------------------------// | |
449 | void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3]) | |
450 | { | |
451 | fXvertex = vtx[0]; | |
452 | fYvertex = vtx[1]; | |
453 | fZvertex = vtx[2]; | |
454 | fSigmaX = evtx[0]; | |
455 | fSigmaY = evtx[1]; | |
456 | fSigmaZ = evtx[2]; | |
457 | } | |
458 | //--------------------------------------------------------------------// | |
7dcaf913 | 459 | void AliPMDtracker::ResetClusters() |
460 | { | |
461 | if (fRecpoints) fRecpoints->Clear(); | |
462 | } | |
463 | //--------------------------------------------------------------------// |