alignment data included to calculate the final position
[u/mrichter/AliRoot.git] / PMD / AliPMDtracker.cxx
CommitLineData
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
49ClassImp(AliPMDtracker)
50
51AliPMDtracker::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}
72//--------------------------------------------------------------------//
a48edddd 73AliPMDtracker:: 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//--------------------------------------------------------------------//
96AliPMDtracker& AliPMDtracker::operator=(const AliPMDtracker & /* tracker */)
97{
98 // assignment operator
99 AliError("Assignment operator not allowed");
100 return *this;
101}
102
103//--------------------------------------------------------------------//
7dcaf913 104AliPMDtracker::~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//--------------------------------------------------------------------//
133void AliPMDtracker::LoadClusters(TTree *treein)
134{
135 // Load the Reconstructed tree
136 fTreeR = treein;
137}
138//--------------------------------------------------------------------//
af885e0f 139void 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
dc461f61 255 fPMDutil->ApplyAlignment();
7dcaf913 256
257 Int_t nentries2 = fPMDcontout->GetEntries();
ecee2a1a 258 AliDebug(1,Form("Number of clusters coming after discrimination = %d"
259 ,nentries2));
7dcaf913 260 for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
261 {
262 fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
263
264 det = fPMDclout->GetDetector();
265 smn = fPMDclout->GetSMN();
b0e4d1e1 266 trno = fPMDclout->GetClusTrackNo();
267 trpid = fPMDclout->GetClusTrackPid();
268 mstat = fPMDclout->GetClusMatching();
7dcaf913 269 xpos = fPMDclout->GetClusX();
270 ypos = fPMDclout->GetClusY();
271 adc = fPMDclout->GetClusADC();
272 ncell = fPMDclout->GetClusCells();
b0e4d1e1 273 radx = fPMDclout->GetClusSigmaX();
6db43724 274 // Here in the variable "rady" we are keeping the row and col
275 // of the single isolated cluster having ncell = 1 for offline
276 // calibration
277
278 if ((radx > 999. && radx < 1000.) && ncell == 1)
279 {
280 if (smn < 12)
281 {
282 ix = (Int_t) (ypos +0.5);
283 iy = (Int_t) xpos;
284 }
285 else if (smn > 12 && smn < 24)
286 {
287 ix = (Int_t) xpos;
288 iy = (Int_t) (ypos +0.5);
289 }
290 rady = (Float_t) (ix*100 + iy);
291 }
292 else
293 {
294 rady = fPMDclout->GetClusSigmaY();
295 }
7dcaf913 296 pid = fPMDclout->GetClusPID();
297
298 //
7dcaf913 299 /**********************************************************************
300 * det : Detector, 0: PRE & 1:CPV *
01c4d84a 301 * smn : Serial Module Number 0 to 23 for each plane *
7dcaf913 302 * xpos : x-position of the cluster *
303 * ypos : y-position of the cluster *
304 * THESE xpos & ypos are not the true xpos and ypos *
305 * for some of the unit modules. They are rotated. *
306 * adc : ADC contained in the cluster *
307 * ncell : Number of cells contained in the cluster *
308 * rad : radius of the cluster (1d fit) *
7dcaf913 309 **********************************************************************/
310 //
01c4d84a 311
26f1ae17 312
313 if (det == 0)
314 {
dc461f61 315 zglobal = kzpos + 1.65; // PREshower plane
26f1ae17 316 }
317 else if (det == 1)
318 {
dc461f61 319 zglobal = kzpos - 1.65; // CPV plane
26f1ae17 320 }
321
dc461f61 322 fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal,zglobal);
323
7dcaf913 324 // Fill ESD
325
326 AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
327
328 esdpmdtr->SetDetector(det);
c6f4d28b 329 esdpmdtr->SetSmn(smn);
330 esdpmdtr->SetClusterTrackNo(trno);
331 esdpmdtr->SetClusterTrackPid(trpid);
332 esdpmdtr->SetClusterMatching(mstat);
333
26f1ae17 334 esdpmdtr->SetClusterX(xglobal);
335 esdpmdtr->SetClusterY(yglobal);
336 esdpmdtr->SetClusterZ(zglobal);
7dcaf913 337 esdpmdtr->SetClusterADC(adc);
26f1ae17 338 esdpmdtr->SetClusterCells(ncell);
7dcaf913 339 esdpmdtr->SetClusterPID(pid);
c6f4d28b 340 esdpmdtr->SetClusterSigmaX(radx);
341 esdpmdtr->SetClusterSigmaY(rady);
7dcaf913 342
343 event->AddPmdTrack(esdpmdtr);
344 }
a1e9ac09 345
346 fPMDcontin->Delete();
347 fPMDcontout->Delete();
348
7dcaf913 349}
350//--------------------------------------------------------------------//
b0e4d1e1 351void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
352 Int_t *ipid, Float_t *cadc,
353 Int_t &trackno, Int_t &trackpid)
354{
355 // assign the track number and the corresponding pid to a cluster
356 // split cluster part will be done at the time of calculating eff/pur
357
358 Int_t *phentry = new Int_t [nentry];
a6621fb4 359 Int_t *hadentry = new Int_t [nentry];
b0e4d1e1 360 Int_t *trenergy = 0x0;
a6621fb4 361 Int_t *trpid = 0x0;
b0e4d1e1 362 Int_t *sortcoord = 0x0;
363
364 Int_t ngtrack = 0;
a6621fb4 365 Int_t nhtrack = 0;
b0e4d1e1 366 for (Int_t i = 0; i < nentry; i++)
367 {
368 phentry[i] = -1;
a6621fb4 369 hadentry[i] = -1;
370
b0e4d1e1 371 if (ipid[i] == 22)
372 {
373 phentry[ngtrack] = i;
374 ngtrack++;
375 }
a6621fb4 376 else if (ipid[i] != 22)
377 {
378 hadentry[nhtrack] = i;
379 nhtrack++;
380 }
b0e4d1e1 381 }
4b1e197e 382
a6621fb4 383 Int_t nghadtrack = ngtrack + nhtrack;
384
b0e4d1e1 385 if (ngtrack == 0)
386 {
387 // hadron track
388 // no need of track number, set to -1
389 trackpid = 8;
390 trackno = -1;
391 }
a6621fb4 392 else if (ngtrack >= 1)
b0e4d1e1 393 {
a6621fb4 394 // one or more than one photon track + charged track
395 // find out which track deposits maximum energy and
396 // assign that track number and track pid
397
398 trenergy = new Int_t [nghadtrack];
399 trpid = new Int_t [nghadtrack];
400 sortcoord = new Int_t [nghadtrack];
b0e4d1e1 401 for (Int_t i = 0; i < ngtrack; i++)
402 {
403 trenergy[i] = 0.;
a6621fb4 404 trpid[i] = -1;
b0e4d1e1 405 for (Int_t j = 0; j < nentry; j++)
406 {
407 if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
408 {
409 trenergy[i] += cadc[j];
a6621fb4 410 trpid[i] = 22;
411 }
412 }
413 }
414 for (Int_t i = ngtrack; i < nghadtrack; i++)
415 {
416 trenergy[i] = 0.;
417 trpid[i] = -1;
418 for (Int_t j = 0; j < nentry; j++)
419 {
420 if (ipid[j] != 22 && itra[j] == itra[hadentry[i-ngtrack]])
421 {
422 trenergy[i] += cadc[j];
423 trpid[i] = ipid[j];
b0e4d1e1 424 }
425 }
426 }
4b1e197e 427
b0e4d1e1 428 Bool_t jsort = true;
a6621fb4 429 TMath::Sort(nghadtrack,trenergy,sortcoord,jsort);
4b1e197e 430
b0e4d1e1 431 Int_t gtr = sortcoord[0];
a6621fb4 432 if (trpid[gtr] == 22)
433 {
434 trackpid = 22;
435 trackno = itra[phentry[gtr]]; // highest adc track
436 }
437 else
438 {
439 trackpid = 8;
440 trackno = -1;
441 }
4b1e197e 442
b0e4d1e1 443 delete [] trenergy;
a6621fb4 444 delete [] trpid;
b0e4d1e1 445 delete [] sortcoord;
4b1e197e 446
a6621fb4 447 } // end of ngtrack >= 1
4b1e197e 448
b0e4d1e1 449}
450//--------------------------------------------------------------------//
7dcaf913 451void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
452{
453 fXvertex = vtx[0];
454 fYvertex = vtx[1];
455 fZvertex = vtx[2];
456 fSigmaX = evtx[0];
457 fSigmaY = evtx[1];
458 fSigmaZ = evtx[2];
459}
460//--------------------------------------------------------------------//
7dcaf913 461void AliPMDtracker::ResetClusters()
462{
463 if (fRecpoints) fRecpoints->Clear();
464}
465//--------------------------------------------------------------------//