New KeV-ADC constants are put from the 2009 May test beam
[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();
920e13db 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];
208
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 }
218 AssignTrPidToCluster(nenbr1, itra, ipid, cadc,
219 trackno, trackpid);
220
221 delete [] irow;
222 delete [] icol;
223 delete [] itra;
224 delete [] ipid;
225 delete [] cadc;
226
227 fPMDclin = new AliPMDrecdata(idet,ismn,trackno,trackpid,clusdata);
920e13db 228 fPMDcontin->Add(fPMDclin);
b0e4d1e1 229
230 ncrhit++;
920e13db 231 }
7dcaf913 232 }
233 }
234
26f1ae17 235 AliPMDDiscriminator *pmddiscriminator = new AliPMDEmpDiscriminator();
236 pmddiscriminator->Discrimination(fPMDcontin,fPMDcontout);
7dcaf913 237
50555ba1 238 const Float_t kzpos = 361.5; // middle of the PMD
01c4d84a 239
b0e4d1e1 240 Int_t det,smn,trno,trpid,mstat;
7dcaf913 241 Float_t xpos,ypos;
b0e4d1e1 242 Float_t adc, ncell, radx, rady;
01c4d84a 243 Float_t xglobal = 0., yglobal = 0., zglobal = 0;
7dcaf913 244 Float_t pid;
245
7dcaf913 246
247 Int_t nentries2 = fPMDcontout->GetEntries();
ecee2a1a 248 AliDebug(1,Form("Number of clusters coming after discrimination = %d"
249 ,nentries2));
7dcaf913 250 for (Int_t ient1 = 0; ient1 < nentries2; ient1++)
251 {
252 fPMDclout = (AliPMDclupid*)fPMDcontout->UncheckedAt(ient1);
253
254 det = fPMDclout->GetDetector();
255 smn = fPMDclout->GetSMN();
b0e4d1e1 256 trno = fPMDclout->GetClusTrackNo();
257 trpid = fPMDclout->GetClusTrackPid();
258 mstat = fPMDclout->GetClusMatching();
7dcaf913 259 xpos = fPMDclout->GetClusX();
260 ypos = fPMDclout->GetClusY();
261 adc = fPMDclout->GetClusADC();
262 ncell = fPMDclout->GetClusCells();
b0e4d1e1 263 radx = fPMDclout->GetClusSigmaX();
264 rady = fPMDclout->GetClusSigmaY();
7dcaf913 265 pid = fPMDclout->GetClusPID();
266
267 //
7dcaf913 268 /**********************************************************************
269 * det : Detector, 0: PRE & 1:CPV *
01c4d84a 270 * smn : Serial Module Number 0 to 23 for each plane *
7dcaf913 271 * xpos : x-position of the cluster *
272 * ypos : y-position of the cluster *
273 * THESE xpos & ypos are not the true xpos and ypos *
274 * for some of the unit modules. They are rotated. *
275 * adc : ADC contained in the cluster *
276 * ncell : Number of cells contained in the cluster *
277 * rad : radius of the cluster (1d fit) *
7dcaf913 278 **********************************************************************/
279 //
01c4d84a 280
281 fPMDutil->RectGeomCellPos(smn,xpos,ypos,xglobal,yglobal);
26f1ae17 282
283 if (det == 0)
284 {
50555ba1 285 zglobal = kzpos + 1.6; // PREshower plane
26f1ae17 286 }
287 else if (det == 1)
288 {
50555ba1 289 zglobal = kzpos - 1.7; // CPV plane
26f1ae17 290 }
291
7dcaf913 292 // Fill ESD
293
294 AliESDPmdTrack *esdpmdtr = new AliESDPmdTrack();
295
296 esdpmdtr->SetDetector(det);
c6f4d28b 297 esdpmdtr->SetSmn(smn);
298 esdpmdtr->SetClusterTrackNo(trno);
299 esdpmdtr->SetClusterTrackPid(trpid);
300 esdpmdtr->SetClusterMatching(mstat);
301
26f1ae17 302 esdpmdtr->SetClusterX(xglobal);
303 esdpmdtr->SetClusterY(yglobal);
304 esdpmdtr->SetClusterZ(zglobal);
7dcaf913 305 esdpmdtr->SetClusterADC(adc);
26f1ae17 306 esdpmdtr->SetClusterCells(ncell);
7dcaf913 307 esdpmdtr->SetClusterPID(pid);
c6f4d28b 308 esdpmdtr->SetClusterSigmaX(radx);
309 esdpmdtr->SetClusterSigmaY(rady);
7dcaf913 310
311 event->AddPmdTrack(esdpmdtr);
312 }
a1e9ac09 313
314 fPMDcontin->Delete();
315 fPMDcontout->Delete();
316
7dcaf913 317}
318//--------------------------------------------------------------------//
b0e4d1e1 319void AliPMDtracker::AssignTrPidToCluster(Int_t nentry, Int_t *itra,
320 Int_t *ipid, Float_t *cadc,
321 Int_t &trackno, Int_t &trackpid)
322{
323 // assign the track number and the corresponding pid to a cluster
324 // split cluster part will be done at the time of calculating eff/pur
325
326 Int_t *phentry = new Int_t [nentry];
327 Int_t *trenergy = 0x0;
328 Int_t *sortcoord = 0x0;
329
330 Int_t ngtrack = 0;
331 for (Int_t i = 0; i < nentry; i++)
332 {
333 phentry[i] = -1;
334 if (ipid[i] == 22)
335 {
336 phentry[ngtrack] = i;
337 ngtrack++;
338 }
339 }
340
341 if (ngtrack == 0)
342 {
343 // hadron track
344 // no need of track number, set to -1
345 trackpid = 8;
346 trackno = -1;
347 }
348 else if (ngtrack == 1)
349 {
350 // only one photon track
351 // track number set to photon track
352 trackpid = 1;
353 trackno = itra[phentry[0]];
354 }
355 else if (ngtrack > 1)
356 {
357 // more than one photon track
358
359 trenergy = new Int_t [ngtrack];
360 sortcoord = new Int_t [ngtrack];
361 for (Int_t i = 0; i < ngtrack; i++)
362 {
363 trenergy[i] = 0.;
364 for (Int_t j = 0; j < nentry; j++)
365 {
366 if (ipid[j] == 22 && itra[j] == itra[phentry[i]])
367 {
368 trenergy[i] += cadc[j];
369 }
370 }
371 }
372
373 Bool_t jsort = true;
374 TMath::Sort(ngtrack,trenergy,sortcoord,jsort);
375
376 Int_t gtr = sortcoord[0];
377 trackno = itra[phentry[gtr]]; // highest adc track
378 trackpid = 1;
379
380 delete [] trenergy;
381 delete [] sortcoord;
382
383 } // end of ngtrack > 1
384
385
386
387}
388//--------------------------------------------------------------------//
7dcaf913 389void AliPMDtracker::SetVertex(Double_t vtx[3], Double_t evtx[3])
390{
391 fXvertex = vtx[0];
392 fYvertex = vtx[1];
393 fZvertex = vtx[2];
394 fSigmaX = evtx[0];
395 fSigmaY = evtx[1];
396 fSigmaZ = evtx[2];
397}
398//--------------------------------------------------------------------//
7dcaf913 399void AliPMDtracker::ResetClusters()
400{
401 if (fRecpoints) fRecpoints->Clear();
402}
403//--------------------------------------------------------------------//