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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// Source File : PMDDigitizer.cxx, Version 00 //
18// //
19// Date : September 20 2002 //
20// //
21//-----------------------------------------------------//
22
23#include <Riostream.h>
24#include <TBRIK.h>
25#include <TNode.h>
26#include <TTree.h>
27#include <TGeometry.h>
28#include <TObjArray.h>
29#include <TClonesArray.h>
30#include <TFile.h>
31#include <TNtuple.h>
32#include <TParticle.h>
33
34#include "AliRun.h"
35#include "AliPMD.h"
36#include "AliPMDhit.h"
37#include "AliHit.h"
38#include "AliDetector.h"
39#include "AliRunLoader.h"
40#include "AliLoader.h"
41#include "AliConfig.h"
42#include "AliMagF.h"
43#include "AliRunDigitizer.h"
44#include "AliDigitizer.h"
45#include "AliHeader.h"
46
47#include "AliPMDcell.h"
48#include "AliPMDsdigit.h"
49#include "AliPMDdigit.h"
50#include "AliPMDDigitizer.h"
51#include "AliMC.h"
52
53ClassImp(AliPMDDigitizer)
54
55AliPMDDigitizer::AliPMDDigitizer() :
56 fRunLoader(0),
57 fPMDHit(0),
58 fPMD(0),
59 fPMDLoader(0),
60 fSDigits(0),
61 fDigits(0),
62 fCell(0),
63 fDebug(0),
64 fNsdigit(0),
65 fNdigit(0),
66 fDetNo(0),
67 fZPos(361.5)// in units of cm, This is the default position of PMD
68{
69 // Default Constructor
70 //
71 for (Int_t i = 0; i < fgkTotUM; i++)
72 {
73 for (Int_t j = 0; j < fgkRow; j++)
74 {
75 for (Int_t k = 0; k < fgkCol; k++)
76 {
77 fCPV[i][j][k] = 0.;
78 fPRE[i][j][k] = 0.;
79 fPRECounter[i][j][k] = 0;
80 fPRETrackNo[i][j][k] = -1;
81 fCPVTrackNo[i][j][k] = -1;
82 }
83 }
84 }
85
86}
87//____________________________________________________________________________
88AliPMDDigitizer::AliPMDDigitizer(AliRunDigitizer* manager)
89 :AliDigitizer(manager),
90 fRunLoader(0),
91 fPMDHit(0),
92 fPMD(0),
93 fPMDLoader(0),
94 fSDigits(new TClonesArray("AliPMDsdigit", 1000)),
95 fDigits(new TClonesArray("AliPMDdigit", 1000)),
96 fCell(0),
97 fDebug(0),
98 fNsdigit(0),
99 fNdigit(0),
100 fDetNo(0),
101 fZPos(361.5)// in units of cm, This is the default position of PMD
102{
103 // ctor which should be used
104
105 for (Int_t i = 0; i < fgkTotUM; i++)
106 {
107 for (Int_t j = 0; j < fgkRow; j++)
108 {
109 for (Int_t k = 0; k < fgkCol; k++)
110 {
111 fCPV[i][j][k] = 0.;
112 fPRE[i][j][k] = 0.;
113 fPRECounter[i][j][k] = 0;
114 fPRETrackNo[i][j][k] = -1;
115 fCPVTrackNo[i][j][k] = -1;
116 }
117 }
118 }
119}
120//____________________________________________________________________________
121AliPMDDigitizer::~AliPMDDigitizer()
122{
123 // Default Destructor
124 //
125 if (fSDigits) {
126 fSDigits->Delete();
127 delete fSDigits;
128 fSDigits=0;
129 }
130 if (fDigits) {
131 fDigits->Delete();
132 delete fDigits;
133 fDigits=0;
134 }
135 fCell.Delete();
136}
137//
138// Member functions
139//
140//____________________________________________________________________________
141void AliPMDDigitizer::OpengAliceFile(const char *file, Option_t *option)
142{
143 // Loads galice.root file and corresponding header, kinematics
144 // hits and sdigits or digits depending on the option
145 //
146
147 TString evfoldname = AliConfig::GetDefaultEventFolderName();
148 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
149 if (!fRunLoader)
150 fRunLoader = AliRunLoader::Open(file,AliConfig::GetDefaultEventFolderName(),
151 "UPDATE");
152
153 if (!fRunLoader)
154 {
155 Error("Open","Can not open session for file %s.",file);
156 }
157
158 if (!fRunLoader->GetAliRun()) fRunLoader->LoadgAlice();
159 if (!fRunLoader->TreeE()) fRunLoader->LoadHeader();
160 if (!fRunLoader->TreeK()) fRunLoader->LoadKinematics();
161
162 gAlice = fRunLoader->GetAliRun();
163
164 if (fDebug) {
165 if (gAlice)
166 {
167 printf("<AliPMDdigitizer::Open> ");
168 printf("AliRun object found on file.\n");
169 }
170 else
171 {
172 printf("<AliPMDdigitizer::Open> ");
173 printf("Could not find AliRun object.\n");
174 }
175 }
176
177 fPMD = (AliPMD*)gAlice->GetDetector("PMD");
178 fPMDLoader = fRunLoader->GetLoader("PMDLoader");
179 if (fPMDLoader == 0x0)
180 {
181 cerr<<"Hits2Digits : Can not find PMD or PMDLoader\n";
182 }
183
184 const char *cHS = strstr(option,"HS");
185 const char *cHD = strstr(option,"HD");
186 const char *cSD = strstr(option,"SD");
187
188 if (cHS)
189 {
190 fPMDLoader->LoadHits("READ");
191 fPMDLoader->LoadSDigits("recreate");
192 }
193 else if (cHD)
194 {
195 fPMDLoader->LoadHits("READ");
196 fPMDLoader->LoadDigits("recreate");
197 }
198 else if (cSD)
199 {
200 fPMDLoader->LoadSDigits("READ");
201 fPMDLoader->LoadDigits("recreate");
202 }
203}
204//____________________________________________________________________________
205void AliPMDDigitizer::Hits2SDigits(Int_t ievt)
206{
207 // This reads the PMD Hits tree and assigns the right track number
208 // to a cell and stores in the summable digits tree
209 //
210 // cout << " -------- Beginning of Hits2SDigits ----------- " << endl;
211
212 const Int_t kPi0 = 111;
213 const Int_t kGamma = 22;
214 Int_t npmd;
215 Int_t trackno;
216 Int_t smnumber;
217 Int_t trackpid;
218 Int_t mtrackno;
219 Int_t mtrackpid;
220
221 Float_t xPos, yPos, zPos;
222 Int_t xpad = -1, ypad = -1;
223 Float_t edep;
224 Float_t vx = -999.0, vy = -999.0, vz = -999.0;
225
226
227 if (!fSDigits) fSDigits = new TClonesArray("AliPMDsdigit", 1000);
228 ResetSDigit();
229
230 if (fDebug) printf("Event Number = %d \n",ievt);
231 Int_t nparticles = fRunLoader->GetHeader()->GetNtrack();
232 if (fDebug) printf("Number of Particles = %d \n", nparticles);
233 fRunLoader->GetEvent(ievt);
234 // ------------------------------------------------------- //
235 // Pointer to specific detector hits.
236 // Get pointers to Alice detectors and Hits containers
237
238 TTree* treeH = fPMDLoader->TreeH();
239
240 Int_t ntracks = (Int_t) treeH->GetEntries();
241 if (fDebug) printf("Number of Tracks in the TreeH = %d \n", ntracks);
242
243 TTree* treeS = fPMDLoader->TreeS();
244 if (treeS == 0x0)
245 {
246 fPMDLoader->MakeTree("S");
247 treeS = fPMDLoader->TreeS();
248 }
249 Int_t bufsize = 16000;
250 treeS->Branch("PMDSDigit", &fSDigits, bufsize);
251
252 TClonesArray* hits = 0;
253 if (fPMD) hits = fPMD->Hits();
254
255 // Start loop on tracks in the hits containers
256
257 for (Int_t track=0; track<ntracks;track++)
258 {
259 gAlice->ResetHits();
260 treeH->GetEvent(track);
261 if (fPMD)
262 {
263 npmd = hits->GetEntriesFast();
264 for (int ipmd = 0; ipmd < npmd; ipmd++)
265 {
266 fPMDHit = (AliPMDhit*) hits->UncheckedAt(ipmd);
267 trackno = fPMDHit->GetTrack();
268 // get kinematics of the particles
269
270 TParticle* mparticle = gAlice->GetMCApp()->Particle(trackno);
271 trackpid = mparticle->GetPdgCode();
272
273 Int_t igatr = -999;
274 Int_t ichtr = -999;
275 Int_t igapid = -999;
276 Int_t imo;
277 Int_t igen = 0;
278 Int_t idmo = -999;
279
280 Int_t tracknoOld=0, trackpidOld=0, statusOld = 0;
281 if (mparticle->GetFirstMother() == -1)
282 {
283 tracknoOld = trackno;
284 trackpidOld = trackpid;
285 statusOld = -1;
286 }
287 Int_t igstatus = 0;
288 while((imo = mparticle->GetFirstMother()) >= 0)
289 {
290 igen++;
291
292 mparticle = gAlice->GetMCApp()->Particle(imo);
293 idmo = mparticle->GetPdgCode();
294
295 vx = mparticle->Vx();
296 vy = mparticle->Vy();
297 vz = mparticle->Vz();
298
299 //printf("==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, idmo, vx, vy, vz);
300 //fprintf(fpw1,"==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, idmo, vx, vy, vz);
301 if ((idmo == kGamma || idmo == -11 || idmo == 11) && vx == 0. && vy == 0. && vz == 0.)
302 {
303 igatr = imo;
304 igapid = idmo;
305 igstatus = 1;
306 }
307 if(igstatus == 0)
308 {
309 if (idmo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
310 {
311 igatr = imo;
312 igapid = idmo;
313 }
314 }
315 ichtr = imo;
316 }
317
318 if (idmo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
319 {
320 mtrackno = igatr;
321 mtrackpid = igapid;
322 }
323 else
324 {
325 mtrackno = ichtr;
326 mtrackpid = idmo;
327 }
328 if (statusOld == -1)
329 {
330 mtrackno = tracknoOld;
331 mtrackpid = trackpidOld;
332 }
333 xPos = fPMDHit->X();
334 yPos = fPMDHit->Y();
335 zPos = fPMDHit->Z();
336
337 edep = fPMDHit->GetEnergy();
338 Int_t vol1 = fPMDHit->GetVolume(1); // Column
339 Int_t vol2 = fPMDHit->GetVolume(2); // Row
340 Int_t vol3 = fPMDHit->GetVolume(3); // UnitModule
341 Int_t vol6 = fPMDHit->GetVolume(6); // SuperModule
342
343 // -----------------------------------------//
344 // For Super Module 1 & 2 //
345 // nrow = 96, ncol = 48 //
346 // For Super Module 3 & 4 //
347 // nrow = 48, ncol = 96 //
348 // -----------------------------------------//
349
350 smnumber = (vol6-1)*6 + vol3;
351
352 if (vol6 == 1 || vol6 == 2)
353 {
354 xpad = vol1;
355 ypad = vol2;
356 }
357 else if (vol6 == 3 || vol6 == 4)
358 {
359 xpad = vol2;
360 ypad = vol1;
361 }
362
363 //cout << "zpos = " << zPos << " edep = " << edep << endl;
364
365 Float_t zposition = TMath::Abs(zPos);
366 if (zposition < fZPos)
367 {
368 // CPV
369 fDetNo = 1;
370 }
371 else if (zposition > fZPos)
372 {
373 // PMD
374 fDetNo = 0;
375 }
376 Int_t smn = smnumber - 1;
377 Int_t ixx = xpad - 1;
378 Int_t iyy = ypad - 1;
379 if (fDetNo == 0)
380 {
381 fPRE[smn][ixx][iyy] += edep;
382 fPRECounter[smn][ixx][iyy]++;
383
384 AliPMDcell* cell = new AliPMDcell(mtrackno,smn,ixx,iyy,edep);
385
386 fCell.Add(cell);
387 }
388 else if(fDetNo == 1)
389 {
390 fCPV[smn][ixx][iyy] += edep;
391 fCPVTrackNo[smn][ixx][iyy] = mtrackno;
392 }
393 }
394 }
395 } // Track Loop ended
396
397 TrackAssignment2Cell();
398 ResetCell();
399
400 Float_t deltaE = 0.;
401 Int_t detno = 0;
402 Int_t trno = -1;
403
404 for (Int_t idet = 0; idet < 2; idet++)
405 {
406 for (Int_t ism = 0; ism < fgkTotUM; ism++)
407 {
408 for (Int_t jrow = 0; jrow < fgkRow; jrow++)
409 {
410 for (Int_t kcol = 0; kcol < fgkCol; kcol++)
411 {
412 if (idet == 0)
413 {
414 deltaE = fPRE[ism][jrow][kcol];
415 trno = fPRETrackNo[ism][jrow][kcol];
416 detno = 0;
417 }
418 else if (idet == 1)
419 {
420 deltaE = fCPV[ism][jrow][kcol];
421 trno = fCPVTrackNo[ism][jrow][kcol];
422 detno = 1;
423 }
424 if (deltaE > 0.)
425 {
426 AddSDigit(trno,detno,ism,jrow,kcol,deltaE);
427 }
428 }
429 }
430 treeS->Fill();
431 ResetSDigit();
432 }
433 }
434 fPMDLoader->WriteSDigits("OVERWRITE");
435 ResetCellADC();
436
437 // cout << " -------- End of Hits2SDigit ----------- " << endl;
438}
439//____________________________________________________________________________
440
441void AliPMDDigitizer::Hits2Digits(Int_t ievt)
442{
443 // This reads the PMD Hits tree and assigns the right track number
444 // to a cell and stores in the digits tree
445 //
446 const Int_t kPi0 = 111;
447 const Int_t kGamma = 22;
448 Int_t npmd;
449 Int_t trackno;
450 Int_t smnumber;
451 Int_t trackpid;
452 Int_t mtrackno;
453 Int_t mtrackpid;
454
455 Float_t xPos, yPos, zPos;
456 Int_t xpad = -1, ypad = -1;
457 Float_t edep;
458 Float_t vx = -999.0, vy = -999.0, vz = -999.0;
459
460 if (!fDigits) fDigits = new TClonesArray("AliPMDdigit", 1000);
461 ResetDigit();
462
463 if (fDebug) printf("Event Number = %d \n",ievt);
464
465 Int_t nparticles = fRunLoader->GetHeader()->GetNtrack();
466 if (fDebug) printf("Number of Particles = %d \n", nparticles);
467 fRunLoader->GetEvent(ievt);
468 // ------------------------------------------------------- //
469 // Pointer to specific detector hits.
470 // Get pointers to Alice detectors and Hits containers
471
472 fPMD = (AliPMD*)gAlice->GetDetector("PMD");
473 fPMDLoader = fRunLoader->GetLoader("PMDLoader");
474
475 if (fPMDLoader == 0x0)
476 {
477 cerr<<"Hits2Digits method : Can not find PMD or PMDLoader\n";
478 }
479 TTree* treeH = fPMDLoader->TreeH();
480 Int_t ntracks = (Int_t) treeH->GetEntries();
481 if (fDebug) printf("Number of Tracks in the TreeH = %d \n", ntracks);
482 fPMDLoader->LoadDigits("recreate");
483 TTree* treeD = fPMDLoader->TreeD();
484 if (treeD == 0x0)
485 {
486 fPMDLoader->MakeTree("D");
487 treeD = fPMDLoader->TreeD();
488 }
489 Int_t bufsize = 16000;
490 treeD->Branch("PMDDigit", &fDigits, bufsize);
491
492 TClonesArray* hits = 0;
493 if (fPMD) hits = fPMD->Hits();
494
495 // Start loop on tracks in the hits containers
496
497 for (Int_t track=0; track<ntracks;track++)
498 {
499 gAlice->ResetHits();
500 treeH->GetEvent(track);
501
502 if (fPMD)
503 {
504 npmd = hits->GetEntriesFast();
505 for (int ipmd = 0; ipmd < npmd; ipmd++)
506 {
507 fPMDHit = (AliPMDhit*) hits->UncheckedAt(ipmd);
508 trackno = fPMDHit->GetTrack();
509
510 // get kinematics of the particles
511
512 TParticle* mparticle = gAlice->GetMCApp()->Particle(trackno);
513 trackpid = mparticle->GetPdgCode();
514
515 Int_t igatr = -999;
516 Int_t ichtr = -999;
517 Int_t igapid = -999;
518 Int_t imo;
519 Int_t igen = 0;
520 Int_t idmo = -999;
521
522 Int_t tracknoOld=0, trackpidOld=0, statusOld = 0;
523 if (mparticle->GetFirstMother() == -1)
524 {
525 tracknoOld = trackno;
526 trackpidOld = trackpid;
527 statusOld = -1;
528 }
529
530 Int_t igstatus = 0;
531 while((imo = mparticle->GetFirstMother()) >= 0)
532 {
533 igen++;
534
535 mparticle = gAlice->GetMCApp()->Particle(imo);
536 idmo = mparticle->GetPdgCode();
537
538 vx = mparticle->Vx();
539 vy = mparticle->Vy();
540 vz = mparticle->Vz();
541
542 //printf("==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, idmo, vx, vy, vz);
543 //fprintf(fpw1,"==> Mother ID %5d %5d %5d Vertex: %13.3f %13.3f %13.3f\n", igen, imo, idmo, vx, vy, vz);
544 if ((idmo == kGamma || idmo == -11 || idmo == 11) && vx == 0. && vy == 0. && vz == 0.)
545 {
546 igatr = imo;
547 igapid = idmo;
548 igstatus = 1;
549 }
550 if(igstatus == 0)
551 {
552 if (idmo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
553 {
554 igatr = imo;
555 igapid = idmo;
556 }
557 }
558 ichtr = imo;
559 }
560
561 if (idmo == kPi0 && vx == 0. && vy == 0. && vz == 0.)
562 {
563 mtrackno = igatr;
564 mtrackpid = igapid;
565 }
566 else
567 {
568 mtrackno = ichtr;
569 mtrackpid = idmo;
570 }
571 if (statusOld == -1)
572 {
573 mtrackno = tracknoOld;
574 mtrackpid = trackpidOld;
575 }
576
577 xPos = fPMDHit->X();
578 yPos = fPMDHit->Y();
579 zPos = fPMDHit->Z();
580
581 edep = fPMDHit->GetEnergy();
582 Int_t vol1 = fPMDHit->GetVolume(1); // Column
583 Int_t vol2 = fPMDHit->GetVolume(2); // Row
584 Int_t vol3 = fPMDHit->GetVolume(3); // UnitModule
585 Int_t vol6 = fPMDHit->GetVolume(6); // SuperModule
586
587 // -----------------------------------------//
588 // For Super Module 1 & 2 //
589 // nrow = 96, ncol = 48 //
590 // For Super Module 3 & 4 //
591 // nrow = 48, ncol = 96 //
592 // -----------------------------------------//
593
594 smnumber = (vol6-1)*6 + vol3;
595
596 if (vol6 == 1 || vol6 == 2)
597 {
598 xpad = vol1;
599 ypad = vol2;
600 }
601 else if (vol6 == 3 || vol6 == 4)
602 {
603 xpad = vol2;
604 ypad = vol1;
605 }
606
607 //cout << "-zpos = " << -zPos << endl;
608
609 Float_t zposition = TMath::Abs(zPos);
610
611 if (zposition < fZPos)
612 {
613 // CPV
614 fDetNo = 1;
615 }
616 else if (zposition > fZPos)
617 {
618 // PMD
619 fDetNo = 0;
620 }
621
622 Int_t smn = smnumber - 1;
623 Int_t ixx = xpad - 1;
624 Int_t iyy = ypad - 1;
625 if (fDetNo == 0)
626 {
627 fPRE[smn][ixx][iyy] += edep;
628 fPRECounter[smn][ixx][iyy]++;
629
630 AliPMDcell* cell = new AliPMDcell(mtrackno,smn,ixx,iyy,edep);
631
632 fCell.Add(cell);
633 }
634 else if(fDetNo == 1)
635 {
636 fCPV[smn][ixx][iyy] += edep;
637 fCPVTrackNo[smn][ixx][iyy] = mtrackno;
638 }
639 }
640 }
641 } // Track Loop ended
642
643 TrackAssignment2Cell();
644 ResetCell();
645
646 Float_t adc;
647 Float_t deltaE = 0.;
648 Int_t detno = 0;
649 Int_t trno = 1;
650
651 for (Int_t idet = 0; idet < 2; idet++)
652 {
653 for (Int_t ism = 0; ism < fgkTotUM; ism++)
654 {
655 for (Int_t jrow = 0; jrow < fgkRow; jrow++)
656 {
657 for (Int_t kcol = 0; kcol < fgkCol; kcol++)
658 {
659 if (idet == 0)
660 {
661 deltaE = fPRE[ism][jrow][kcol];
662 trno = fPRETrackNo[ism][jrow][kcol];
663 detno = 0;
664 }
665 else if (idet == 1)
666 {
667 deltaE = fCPV[ism][jrow][kcol];
668 trno = fCPVTrackNo[ism][jrow][kcol];
669 detno = 1;
670 }
671 if (deltaE > 0.)
672 {
673 MeV2ADC(deltaE,adc);
674 AddDigit(trno,detno,ism,jrow,kcol,adc);
675 }
676 } // column loop
677 } // row loop
678 } // supermodule loop
679 treeD->Fill();
680 ResetDigit();
681 } // detector loop
682
683 fPMDLoader->WriteDigits("OVERWRITE");
684 ResetCellADC();
685
686 // cout << " -------- End of Hits2Digit ----------- " << endl;
687}
688//____________________________________________________________________________
689
690
691void AliPMDDigitizer::SDigits2Digits(Int_t ievt)
692{
693 // This reads the PMD sdigits tree and converts energy deposition
694 // in a cell to ADC and stores in the digits tree
695 //
696 // cout << " -------- Beginning of SDigits2Digit ----------- " << endl;
697 fRunLoader->GetEvent(ievt);
698
699 TTree* treeS = fPMDLoader->TreeS();
700 AliPMDsdigit *pmdsdigit;
701 TBranch *branch = treeS->GetBranch("PMDSDigit");
702 if (!fSDigits) fSDigits = new TClonesArray("AliPMDsdigit", 1000);
703 branch->SetAddress(&fSDigits);
704
705 TTree* treeD = fPMDLoader->TreeD();
706 if (treeD == 0x0)
707 {
708 fPMDLoader->MakeTree("D");
709 treeD = fPMDLoader->TreeD();
710 }
711 Int_t bufsize = 16000;
712 if (!fDigits) fDigits = new TClonesArray("AliPMDdigit", 1000);
713 treeD->Branch("PMDDigit", &fDigits, bufsize);
714
715 Int_t trno, det, smn;
716 Int_t irow, icol;
717 Float_t edep, adc;
718
719 Int_t nmodules = (Int_t) treeS->GetEntries();
720
721 for (Int_t imodule = 0; imodule < nmodules; imodule++)
722 {
723 treeS->GetEntry(imodule);
724 Int_t nentries = fSDigits->GetLast();
725 //cout << " nentries = " << nentries << endl;
726 for (Int_t ient = 0; ient < nentries+1; ient++)
727 {
728 pmdsdigit = (AliPMDsdigit*)fSDigits->UncheckedAt(ient);
729 trno = pmdsdigit->GetTrackNumber();
730 det = pmdsdigit->GetDetector();
731 smn = pmdsdigit->GetSMNumber();
732 irow = pmdsdigit->GetRow();
733 icol = pmdsdigit->GetColumn();
734 edep = pmdsdigit->GetCellEdep();
735
736 MeV2ADC(edep,adc);
737 AddDigit(trno,det,smn,irow,icol,adc);
738 }
739 treeD->Fill();
740 ResetDigit();
741 }
742 fPMDLoader->WriteDigits("OVERWRITE");
743 // cout << " -------- End of SDigits2Digit ----------- " << endl;
744}
745//____________________________________________________________________________
746void AliPMDDigitizer::Exec(Option_t *option)
747{
748 // Does the event merging and digitization
749
750 fDebug = 0;
751 const char *cdeb = strstr(option,"deb");
752 if(cdeb)
753 {
754 cout << "**************** PMD Exec *************** " << endl;
755 fDebug = 1;
756 }
757
758 Int_t ninputs = fManager->GetNinputs();
759 if(fDebug)
760 {
761 cout << " Number of files = " << ninputs << endl;
762 }
763 ResetCellADC();
764
765 for (Int_t i = 0; i < ninputs; i++)
766 {
767 Int_t troffset = fManager->GetMask(i);
768 MergeSDigits(i, troffset);
769 }
770
771 fRunLoader = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
772 fPMD = (AliPMD*)gAlice->GetDetector("PMD");
773 fPMDLoader = fRunLoader->GetLoader("PMDLoader");
774 if (fPMDLoader == 0x0)
775 {
776 cerr<<"AliPMDDigitizer::Exec : Can not find PMD or PMDLoader\n";
777 }
778 fPMDLoader->LoadDigits("update");
779 TTree* treeD = fPMDLoader->TreeD();
780 if (treeD == 0x0)
781 {
782 fPMDLoader->MakeTree("D");
783 treeD = fPMDLoader->TreeD();
784 }
785 Int_t bufsize = 16000;
786 if (!fDigits) fDigits = new TClonesArray("AliPMDdigit", 1000);
787 treeD->Branch("PMDDigit", &fDigits, bufsize);
788
789 Float_t adc;
790 Float_t deltaE = 0.;
791 Int_t detno = 0;
792 Int_t trno = 1;
793
794 for (Int_t idet = 0; idet < 2; idet++)
795 {
796 for (Int_t ism = 0; ism < fgkTotUM; ism++)
797 {
798 for (Int_t jrow = 0; jrow < fgkRow; jrow++)
799 {
800 for (Int_t kcol = 0; kcol < fgkCol; kcol++)
801 {
802 if (idet == 0)
803 {
804 deltaE = fPRE[ism][jrow][kcol];
805 trno = fPRETrackNo[ism][jrow][kcol];
806 detno = 0;
807 }
808 else if (idet == 1)
809 {
810 deltaE = fCPV[ism][jrow][kcol];
811 trno = fCPVTrackNo[ism][jrow][kcol];
812 detno = 1;
813 }
814 if (deltaE > 0.)
815 {
816 MeV2ADC(deltaE,adc);
817 AddDigit(trno,detno,ism,jrow,kcol,adc);
818 }
819 } // column loop
820 } // row loop
821 treeD->Fill();
822 ResetDigit();
823 } // supermodule loop
824 } // detector loop
825 fPMDLoader->WriteDigits("OVERWRITE");
826 fPMDLoader->UnloadDigits();
827 ResetCellADC();
828}
829//____________________________________________________________________________
830
831void AliPMDDigitizer::MergeSDigits(Int_t filenumber, Int_t troffset)
832{
833 // merging sdigits
834 fRunLoader = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(filenumber));
835 fPMDLoader = fRunLoader->GetLoader("PMDLoader");
836 fPMDLoader->LoadSDigits("read");
837 TTree* treeS = fPMDLoader->TreeS();
838 AliPMDsdigit *pmdsdigit;
839 TBranch *branch = treeS->GetBranch("PMDSDigit");
840 if (!fSDigits) fSDigits = new TClonesArray("AliPMDsdigit", 1000);
841 branch->SetAddress(&fSDigits);
842
843 Int_t itrackno, idet, ism;
844 Int_t ixp, iyp;
845 Float_t edep;
846
847 Int_t nmodules = (Int_t) treeS->GetEntries();
848 if(fDebug)
849 {
850 cout << " nmodules = " << nmodules << endl;
851 cout << " tr offset = " << troffset << endl;
852 }
853 for (Int_t imodule = 0; imodule < nmodules; imodule++)
854 {
855 treeS->GetEntry(imodule);
856 Int_t nentries = fSDigits->GetLast();
857 if(fDebug)
858 {
859 cout << " nentries = " << nentries << endl;
860 }
861 for (Int_t ient = 0; ient < nentries+1; ient++)
862 {
863 pmdsdigit = (AliPMDsdigit*)fSDigits->UncheckedAt(ient);
864 itrackno = pmdsdigit->GetTrackNumber();
865 idet = pmdsdigit->GetDetector();
866 ism = pmdsdigit->GetSMNumber();
867 ixp = pmdsdigit->GetRow();
868 iyp = pmdsdigit->GetColumn();
869 edep = pmdsdigit->GetCellEdep();
870
871 if (idet == 0)
872 {
873 if (fPRE[ism][ixp][iyp] < edep)
874 {
875 fPRETrackNo[ism][ixp][iyp] = troffset + itrackno;
876 }
877 fPRE[ism][ixp][iyp] += edep;
878 }
879 else if (idet == 1)
880 {
881 if (fCPV[ism][ixp][iyp] < edep)
882 {
883 fCPVTrackNo[ism][ixp][iyp] = troffset + itrackno;
884 }
885 fCPV[ism][ixp][iyp] += edep;
886 }
887 }
888 }
889
890}
891// ----------------------------------------------------------------------
892void AliPMDDigitizer::TrackAssignment2Cell()
893{
894 //
895 // This block assigns the cell id when there are
896 // multiple tracks in a cell according to the
897 // energy deposition
898 //
899 Bool_t jsort = false;
900
901 Int_t i, j, k;
902
903 Float_t *fracEdp;
904 Float_t *trEdp;
905 Int_t *status1;
906 Int_t *status2;
907 Int_t *trnarray;
908 Int_t ****pmdTrack;
909 Float_t ****pmdEdep;
910
911 pmdTrack = new Int_t ***[fgkTotUM];
912 pmdEdep = new Float_t ***[fgkTotUM];
913 for (i=0; i<fgkTotUM; i++)
914 {
915 pmdTrack[i] = new Int_t **[fgkRow];
916 pmdEdep[i] = new Float_t **[fgkRow];
917 }
918
919 for (i = 0; i < fgkTotUM; i++)
920 {
921 for (j = 0; j < fgkRow; j++)
922 {
923 pmdTrack[i][j] = new Int_t *[fgkCol];
924 pmdEdep[i][j] = new Float_t *[fgkCol];
925 }
926 }
927
928 for (i = 0; i < fgkTotUM; i++)
929 {
930 for (j = 0; j < fgkRow; j++)
931 {
932 for (k = 0; k < fgkCol; k++)
933 {
934 Int_t nn = fPRECounter[i][j][k];
935 if(nn > 0)
936 {
937 pmdTrack[i][j][k] = new Int_t[nn];
938 pmdEdep[i][j][k] = new Float_t[nn];
939 }
940 else
941 {
942 nn = 1;
943 pmdTrack[i][j][k] = new Int_t[nn];
944 pmdEdep[i][j][k] = new Float_t[nn];
945 }
946 fPRECounter[i][j][k] = 0;
947 }
948 }
949 }
950
951
952 Int_t nentries = fCell.GetEntries();
953
954 Int_t mtrackno, ism, ixp, iyp;
955 Float_t edep;
956
957 for (i = 0; i < nentries; i++)
958 {
959 AliPMDcell* cell = (AliPMDcell*)fCell.UncheckedAt(i);
960
961 mtrackno = cell->GetTrackNumber();
962 ism = cell->GetSMNumber();
963 ixp = cell->GetX();
964 iyp = cell->GetY();
965 edep = cell->GetEdep();
966 Int_t nn = fPRECounter[ism][ixp][iyp];
967 // cout << " nn = " << nn << endl;
968 pmdTrack[ism][ixp][iyp][nn] = (Int_t) mtrackno;
969 pmdEdep[ism][ixp][iyp][nn] = edep;
970 fPRECounter[ism][ixp][iyp]++;
971 }
972
973 Int_t iz, il;
974 Int_t im, ix, iy;
975 Int_t nn;
976
977 for (im=0; im<fgkTotUM; im++)
978 {
979 for (ix=0; ix<fgkRow; ix++)
980 {
981 for (iy=0; iy<fgkCol; iy++)
982 {
983 nn = fPRECounter[im][ix][iy];
984 if (nn > 1)
985 {
986 // This block handles if a cell is fired
987 // many times by many tracks
988 status1 = new Int_t[nn];
989 status2 = new Int_t[nn];
990 trnarray = new Int_t[nn];
991 for (iz = 0; iz < nn; iz++)
992 {
993 status1[iz] = pmdTrack[im][ix][iy][iz];
994 }
995 TMath::Sort(nn,status1,status2,jsort);
996 Int_t trackOld = -99999;
997 Int_t track, trCount = 0;
998 for (iz = 0; iz < nn; iz++)
999 {
1000 track = status1[status2[iz]];
1001 if (trackOld != track)
1002 {
1003 trnarray[trCount] = track;
1004 trCount++;
1005 }
1006 trackOld = track;
1007 }
1008 delete [] status1;
1009 delete [] status2;
1010 Float_t totEdp = 0.;
1011 trEdp = new Float_t[trCount];
1012 fracEdp = new Float_t[trCount];
1013 for (il = 0; il < trCount; il++)
1014 {
1015 trEdp[il] = 0.;
1016 track = trnarray[il];
1017 for (iz = 0; iz < nn; iz++)
1018 {
1019 if (track == pmdTrack[im][ix][iy][iz])
1020 {
1021 trEdp[il] += pmdEdep[im][ix][iy][iz];
1022 }
1023 }
1024 totEdp += trEdp[il];
1025 }
1026 Int_t ilOld = 0;
1027 Float_t fracOld = 0.;
1028
1029 for (il = 0; il < trCount; il++)
1030 {
1031 fracEdp[il] = trEdp[il]/totEdp;
1032 if (fracOld < fracEdp[il])
1033 {
1034 fracOld = fracEdp[il];
1035 ilOld = il;
1036 }
1037 }
1038 fPRETrackNo[im][ix][iy] = trnarray[ilOld];
1039 delete [] fracEdp;
1040 delete [] trEdp;
1041 delete [] trnarray;
1042 }
1043 else if (nn == 1)
1044 {
1045 // This only handles if a cell is fired
1046 // by only one track
1047
1048 fPRETrackNo[im][ix][iy] = pmdTrack[im][ix][iy][0];
1049
1050 }
1051 else if (nn ==0)
1052 {
1053 // This is if no cell is fired
1054 fPRETrackNo[im][ix][iy] = -999;
1055 }
1056 } // end of iy
1057 } // end of ix
1058 } // end of im
1059
1060 // Delete all the pointers
1061
1062 for (i = 0; i < fgkTotUM; i++)
1063 {
1064 for (j = 0; j < fgkRow; j++)
1065 {
1066 for (k = 0; k < fgkCol; k++)
1067 {
1068 delete [] pmdTrack[i][j][k];
1069 delete [] pmdEdep[i][j][k];
1070 }
1071 }
1072 }
1073
1074 for (i = 0; i < fgkTotUM; i++)
1075 {
1076 for (j = 0; j < fgkRow; j++)
1077 {
1078 delete [] pmdTrack[i][j];
1079 delete [] pmdEdep[i][j];
1080 }
1081 }
1082
1083 for (i = 0; i < fgkTotUM; i++)
1084 {
1085 delete [] pmdTrack[i];
1086 delete [] pmdEdep[i];
1087 }
1088 delete [] pmdTrack;
1089 delete [] pmdEdep;
1090 //
1091 // End of the cell id assignment
1092 //
1093}
1094//____________________________________________________________________________
1095void AliPMDDigitizer::MeV2ADC(Float_t mev, Float_t & adc) const
1096{
1097 // This converts the simulated edep to ADC according to the
1098 // Test Beam Data
1099 // To be done
1100 //
1101 adc = mev*1.;
1102}
1103//____________________________________________________________________________
1104void AliPMDDigitizer::AddSDigit(Int_t trnumber, Int_t det, Int_t smnumber,
1105 Int_t irow, Int_t icol, Float_t adc)
1106{
1107 // Add SDigit
1108 //
1109 if (!fSDigits) fSDigits = new TClonesArray("AliPMDsdigit", 1000);
1110 TClonesArray &lsdigits = *fSDigits;
1111 new(lsdigits[fNsdigit++]) AliPMDsdigit(trnumber,det,smnumber,irow,icol,adc);
1112}
1113//____________________________________________________________________________
1114
1115void AliPMDDigitizer::AddDigit(Int_t trnumber, Int_t det, Int_t smnumber,
1116 Int_t irow, Int_t icol, Float_t adc)
1117{
1118 // Add Digit
1119 //
1120 if (!fDigits) fDigits = new TClonesArray("AliPMDdigit", 1000);
1121 TClonesArray &ldigits = *fDigits;
1122 new(ldigits[fNdigit++]) AliPMDdigit(trnumber,det,smnumber,irow,icol,adc);
1123}
1124//____________________________________________________________________________
1125
1126void AliPMDDigitizer::SetZPosition(Float_t zpos)
1127{
1128 fZPos = zpos;
1129}
1130//____________________________________________________________________________
1131Float_t AliPMDDigitizer::GetZPosition() const
1132{
1133 return fZPos;
1134}
1135//____________________________________________________________________________
1136
1137void AliPMDDigitizer::ResetCell()
1138{
1139 // clears the cell array and also the counter
1140 // for each cell
1141 //
1142 fCell.Delete();
1143 for (Int_t i = 0; i < fgkTotUM; i++)
1144 {
1145 for (Int_t j = 0; j < fgkRow; j++)
1146 {
1147 for (Int_t k = 0; k < fgkCol; k++)
1148 {
1149 fPRECounter[i][j][k] = 0;
1150 }
1151 }
1152 }
1153}
1154//____________________________________________________________________________
1155void AliPMDDigitizer::ResetSDigit()
1156{
1157 // Clears SDigits
1158 fNsdigit = 0;
1159 if (fSDigits) fSDigits->Delete();
1160}
1161//____________________________________________________________________________
1162void AliPMDDigitizer::ResetDigit()
1163{
1164 // Clears Digits
1165 fNdigit = 0;
1166 if (fDigits) fDigits->Delete();
1167}
1168//____________________________________________________________________________
1169
1170void AliPMDDigitizer::ResetCellADC()
1171{
1172 // Clears individual cells edep and track number
1173 for (Int_t i = 0; i < fgkTotUM; i++)
1174 {
1175 for (Int_t j = 0; j < fgkRow; j++)
1176 {
1177 for (Int_t k = 0; k < fgkCol; k++)
1178 {
1179 fCPV[i][j][k] = 0.;
1180 fPRE[i][j][k] = 0.;
1181 fPRETrackNo[i][j][k] = 0;
1182 fCPVTrackNo[i][j][k] = 0;
1183 }
1184 }
1185 }
1186}
1187//____________________________________________________________________________
1188
1189void AliPMDDigitizer::UnLoad(Option_t *option)
1190{
1191 // Unloads all the root files
1192 //
1193 const char *cS = strstr(option,"S");
1194 const char *cD = strstr(option,"D");
1195
1196 fRunLoader->UnloadgAlice();
1197 fRunLoader->UnloadHeader();
1198 fRunLoader->UnloadKinematics();
1199
1200 if (cS)
1201 {
1202 fPMDLoader->UnloadHits();
1203 }
1204 if (cD)
1205 {
1206 fPMDLoader->UnloadHits();
1207 fPMDLoader->UnloadSDigits();
1208 }
1209}