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4c039060 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$Log$
de61d5d5 18Revision 1.52 2002/02/18 09:26:09 kowal2
19Removed compiler warning
20
43510af3 21Revision 1.51 2002/01/21 17:13:21 kowal2
22New track hits using root containers. Setting active sectors added.
23
792bb11c 24Revision 1.50 2001/12/06 14:16:19 kowal2
25meaningfull printouts
26
0a9b058d 27Revision 1.49 2001/11/30 11:55:37 hristov
28Noise table created in Hits2SDigits (M.Ivanov)
29
180f4872 30Revision 1.48 2001/11/24 16:10:21 kowal2
31Faster algorithms.
32
407ff276 33Revision 1.47 2001/11/19 10:25:34 kowal2
34Nearest integer instead of integer when converting to ADC counts
35
68771f83 36Revision 1.46 2001/11/07 06:47:12 kowal2
37Removed printouts
38
9fe90376 39Revision 1.45 2001/11/03 13:33:48 kowal2
40Updated algorithms in Hits2SDigits, SDigits2Digits,
41Hits2ExactClusters.
42Added method Merge
43
5f16d237 44Revision 1.44 2001/08/30 09:28:48 hristov
45TTree names are explicitly set via SetName(name) and then Write() is called
46
6bc3458d 47Revision 1.43 2001/07/28 12:02:54 hristov
48Branch split level set to 99
49
8f90302f 50Revision 1.42 2001/07/28 11:38:52 hristov
51Loop variable declared once
52
43272665 53Revision 1.41 2001/07/28 10:53:50 hristov
54Digitisation done according to the general scheme (M.Ivanov)
55
0a61bf9d 56Revision 1.40 2001/07/27 13:03:14 hristov
57Default Branch split level set to 99
58
d0f40f23 59Revision 1.39 2001/07/26 09:09:34 kowal2
60Hits2Reco method added
61
a62d28a2 62Revision 1.38 2001/07/20 14:32:43 kowal2
63Processing of many events possible now
64
afc42102 65Revision 1.37 2001/06/12 07:17:18 kowal2
66Hits2SDigits method implemented (summable digits)
67
f8cf550c 68Revision 1.36 2001/05/16 14:57:25 alibrary
69New files for folders and Stack
70
9e1a0ddb 71Revision 1.35 2001/05/08 16:02:22 kowal2
72Updated material specifications
73
ba1d05f9 74Revision 1.34 2001/05/08 15:00:15 hristov
75Corrections for tracking in arbitrary magnenetic field. Changes towards a concept of global Alice track. Back propagation of reconstructed tracks (Yu.Belikov)
76
b9de75e1 77Revision 1.33 2001/04/03 12:40:43 kowal2
78Removed printouts
79
5a28a08f 80Revision 1.32 2001/03/12 17:47:36 hristov
81Changes needed on Sun with CC 5.0
82
5cf7bbad 83Revision 1.31 2001/03/12 08:21:50 kowal2
84Corrected C++ bug in the material definitions
85
9a3667bd 86Revision 1.30 2001/03/01 17:34:47 kowal2
87Correction due to the accuracy problem
88
710dacf5 89Revision 1.29 2001/02/28 16:34:40 kowal2
90Protection against nonphysical values of the avalanche size,
9110**6 is the maximum
92
1705494b 93Revision 1.28 2001/01/26 19:57:19 hristov
94Major upgrade of AliRoot code
95
2ab0c725 96Revision 1.27 2001/01/13 17:29:33 kowal2
97Sun compiler correction
98
f2e8b846 99Revision 1.26 2001/01/10 07:59:43 kowal2
100Corrections to load points from the noncompressed hits.
101
53048f2e 102Revision 1.25 2000/11/02 07:25:31 kowal2
103Changes due to the new hit structure.
104Memory leak removed.
105
39c8eb58 106Revision 1.24 2000/10/05 16:06:09 kowal2
107Forward declarations. Changes due to a new class AliComplexCluster.
108
2b06d5c3 109Revision 1.23 2000/10/02 21:28:18 fca
110Removal of useless dependecies via forward declarations
111
94de3818 112Revision 1.22 2000/07/10 20:57:39 hristov
113Update of TPC code and macros by M.Kowalski
114
73042f01 115Revision 1.19.2.4 2000/06/26 07:39:42 kowal2
116Changes to obey the coding rules
117
118Revision 1.19.2.3 2000/06/25 08:38:41 kowal2
119Splitted from AliTPCtracking
120
121Revision 1.19.2.2 2000/06/16 12:59:28 kowal2
122Changed parameter settings
123
124Revision 1.19.2.1 2000/06/09 07:15:07 kowal2
125
126Defaults loaded automatically (hard-wired)
127Optional parameters can be set via macro called in the constructor
128
129Revision 1.19 2000/04/18 19:00:59 fca
130Small bug fixes to TPC files
131
4d68a14a 132Revision 1.18 2000/04/17 09:37:33 kowal2
133removed obsolete AliTPCDigitsDisplay.C
134
cc80f89e 135Revision 1.17.2.2 2000/04/10 08:15:12 kowal2
136
137New, experimental data structure from M. Ivanov
138New tracking algorithm
139Different pad geometry for different sectors
140Digitization rewritten
141
142Revision 1.17.2.1 2000/04/10 07:56:53 kowal2
143Not used anymore - removed
144
145Revision 1.17 2000/01/19 17:17:30 fca
146Introducing a list of lists of hits -- more hits allowed for detector now
147
1cedd08a 148Revision 1.16 1999/11/05 09:29:23 fca
149Accept only signals > 0
150
921bf71a 151Revision 1.15 1999/10/08 06:26:53 fca
152Removed ClustersIndex - not used anymore
153
e674b993 154Revision 1.14 1999/09/29 09:24:33 fca
155Introduction of the Copyright and cvs Log
156
4c039060 157*/
158
fe4da5cc 159///////////////////////////////////////////////////////////////////////////////
160// //
161// Time Projection Chamber //
162// This class contains the basic functions for the Time Projection Chamber //
163// detector. Functions specific to one particular geometry are //
164// contained in the derived classes //
165// //
166//Begin_Html
167/*
1439f98e 168<img src="picts/AliTPCClass.gif">
fe4da5cc 169*/
170//End_Html
171// //
8c555625 172// //
fe4da5cc 173///////////////////////////////////////////////////////////////////////////////
174
73042f01 175//
176
fe4da5cc 177#include <TMath.h>
178#include <TRandom.h>
179#include <TVector.h>
8c555625 180#include <TMatrix.h>
fe4da5cc 181#include <TGeometry.h>
182#include <TNode.h>
183#include <TTUBS.h>
184#include <TObjectTable.h>
1578254f 185#include "TParticle.h"
fe4da5cc 186#include "AliTPC.h"
afc42102 187#include <TFile.h>
188#include <TROOT.h>
189#include <TSystem.h>
fe4da5cc 190#include "AliRun.h"
191#include <iostream.h>
2ab0c725 192#include <stdlib.h>
fe4da5cc 193#include <fstream.h>
194#include "AliMC.h"
94de3818 195#include "AliMagF.h"
fe4da5cc 196
cc80f89e 197
73042f01 198#include "AliTPCParamSR.h"
8c555625 199#include "AliTPCPRF2D.h"
200#include "AliTPCRF1D.h"
cc80f89e 201#include "AliDigits.h"
202#include "AliSimDigits.h"
39c8eb58 203#include "AliTPCTrackHits.h"
792bb11c 204#include "AliTPCTrackHitsV2.h"
39c8eb58 205#include "AliPoints.h"
206#include "AliArrayBranch.h"
207
cc80f89e 208
209#include "AliTPCDigitsArray.h"
2b06d5c3 210#include "AliComplexCluster.h"
cc80f89e 211#include "AliClusters.h"
212#include "AliTPCClustersRow.h"
213#include "AliTPCClustersArray.h"
8c555625 214
73042f01 215#include "AliTPCcluster.h"
216#include "AliTPCclusterer.h"
217#include "AliTPCtracker.h"
8c555625 218
73042f01 219#include <TInterpreter.h>
2b06d5c3 220#include <TTree.h>
1283eee5 221
39c8eb58 222
223
fe4da5cc 224ClassImp(AliTPC)
225
de61d5d5 226//_____________________________________________________________________________
227// helper class for fast matrix and vector manipulation - no range checking
228// origin - Marian Ivanov
229
230class AliTPCFastMatrix : public TMatrix {
231public :
232 AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb);
233 inline Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
234 inline Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
235};
236
237AliTPCFastMatrix::AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb):
238 TMatrix(row_lwb, row_upb,col_lwb,col_upb)
239 {
240 };
241//_____________________________________________________________________________
242class AliTPCFastVector : public TVector {
243public :
244 AliTPCFastVector(Int_t size);
245 inline Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
246};
247
248AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
249};
250
fe4da5cc 251//_____________________________________________________________________________
252AliTPC::AliTPC()
253{
254 //
255 // Default constructor
256 //
257 fIshunt = 0;
fe4da5cc 258 fHits = 0;
259 fDigits = 0;
fe4da5cc 260 fNsectors = 0;
cc80f89e 261 fDigitsArray = 0;
262 fClustersArray = 0;
afc42102 263 fDefaults = 0;
792bb11c 264 fTrackHits = 0;
265 fTrackHitsOld = 0;
266 fHitType = 4; //default CONTAINERS - based on ROOT structure
407ff276 267 fTPCParam = 0;
268 fNoiseTable = 0;
792bb11c 269 fActiveSectors =0;
407ff276 270
fe4da5cc 271}
272
273//_____________________________________________________________________________
274AliTPC::AliTPC(const char *name, const char *title)
275 : AliDetector(name,title)
276{
277 //
278 // Standard constructor
279 //
280
281 //
282 // Initialise arrays of hits and digits
283 fHits = new TClonesArray("AliTPChit", 176);
792bb11c 284 gAlice->AddHitList(fHits);
cc80f89e 285 fDigitsArray = 0;
286 fClustersArray= 0;
afc42102 287 fDefaults = 0;
fe4da5cc 288 //
792bb11c 289 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 290 fTrackHits->SetHitPrecision(0.002);
291 fTrackHits->SetStepPrecision(0.003);
792bb11c 292 fTrackHits->SetMaxDistance(100);
293
294 fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
295 fTrackHitsOld->SetHitPrecision(0.002);
296 fTrackHitsOld->SetStepPrecision(0.003);
297 fTrackHitsOld->SetMaxDistance(100);
298
407ff276 299 fNoiseTable =0;
39c8eb58 300
792bb11c 301 fHitType = 4;
302 fActiveSectors = 0;
39c8eb58 303 //
fe4da5cc 304 // Initialise counters
cc80f89e 305 fNsectors = 0;
cc80f89e 306
fe4da5cc 307 //
308 fIshunt = 0;
309 //
310 // Initialise color attributes
311 SetMarkerColor(kYellow);
73042f01 312
313 //
314 // Set TPC parameters
315 //
316
afc42102 317
318 if (!strcmp(title,"Default")) {
319 fTPCParam = new AliTPCParamSR;
73042f01 320 } else {
321 cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
322 fTPCParam=0;
323 }
324
fe4da5cc 325}
326
327//_____________________________________________________________________________
328AliTPC::~AliTPC()
329{
330 //
331 // TPC destructor
332 //
73042f01 333
fe4da5cc 334 fIshunt = 0;
335 delete fHits;
336 delete fDigits;
73042f01 337 delete fTPCParam;
39c8eb58 338 delete fTrackHits; //MI 15.09.2000
792bb11c 339 delete fTrackHitsOld; //MI 10.12.2001
407ff276 340 if (fNoiseTable) delete [] fNoiseTable;
341
fe4da5cc 342}
343
fe4da5cc 344//_____________________________________________________________________________
345void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
346{
347 //
348 // Add a hit to the list
349 //
39c8eb58 350 // TClonesArray &lhits = *fHits;
351 // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
352 if (fHitType&1){
353 TClonesArray &lhits = *fHits;
354 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
355 }
792bb11c 356 if (fHitType>1)
39c8eb58 357 AddHit2(track,vol,hits);
fe4da5cc 358}
359
fe4da5cc 360//_____________________________________________________________________________
361void AliTPC::BuildGeometry()
362{
cc80f89e 363
fe4da5cc 364 //
365 // Build TPC ROOT TNode geometry for the event display
366 //
73042f01 367 TNode *nNode, *nTop;
fe4da5cc 368 TTUBS *tubs;
369 Int_t i;
370 const int kColorTPC=19;
1283eee5 371 char name[5], title[25];
fe4da5cc 372 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 373 const Double_t kRaddeg=180./TMath::Pi();
374
1283eee5 375
73042f01 376 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
377 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 378
73042f01 379 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
380 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 381
382 Int_t nLo = fTPCParam->GetNInnerSector()/2;
383 Int_t nHi = fTPCParam->GetNOuterSector()/2;
384
73042f01 385 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
386 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
387 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
388 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 389
390
73042f01 391 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
392 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 393
394 Double_t rl,ru;
395
396
fe4da5cc 397 //
398 // Get ALICE top node
fe4da5cc 399 //
1283eee5 400
73042f01 401 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 402
403 // inner sectors
404
cc80f89e 405 rl = fTPCParam->GetInnerRadiusLow();
406 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 407
408
fe4da5cc 409 for(i=0;i<nLo;i++) {
410 sprintf(name,"LS%2.2d",i);
1283eee5 411 name[4]='\0';
412 sprintf(title,"TPC low sector %3d",i);
413 title[24]='\0';
414
73042f01 415 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
416 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 417 tubs->SetNumberOfDivisions(1);
73042f01 418 nTop->cd();
419 nNode = new TNode(name,title,name,0,0,0,"");
420 nNode->SetLineColor(kColorTPC);
421 fNodes->Add(nNode);
fe4da5cc 422 }
1283eee5 423
fe4da5cc 424 // Outer sectors
1283eee5 425
cc80f89e 426 rl = fTPCParam->GetOuterRadiusLow();
427 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 428
fe4da5cc 429 for(i=0;i<nHi;i++) {
430 sprintf(name,"US%2.2d",i);
1283eee5 431 name[4]='\0';
fe4da5cc 432 sprintf(title,"TPC upper sector %d",i);
1283eee5 433 title[24]='\0';
73042f01 434 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
435 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 436 tubs->SetNumberOfDivisions(1);
73042f01 437 nTop->cd();
438 nNode = new TNode(name,title,name,0,0,0,"");
439 nNode->SetLineColor(kColorTPC);
440 fNodes->Add(nNode);
fe4da5cc 441 }
cc80f89e 442
73042f01 443}
1283eee5 444
fe4da5cc 445//_____________________________________________________________________________
446Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t )
447{
448 //
449 // Calculate distance from TPC to mouse on the display
450 // Dummy procedure
451 //
452 return 9999;
453}
454
73042f01 455void AliTPC::Clusters2Tracks(TFile *of) {
3c0f9266 456 //-----------------------------------------------------------------
457 // This is a track finder.
3c0f9266 458 //-----------------------------------------------------------------
b9de75e1 459 AliTPCtracker tracker(fTPCParam);
460 tracker.Clusters2Tracks(gFile,of);
fe4da5cc 461}
462
463//_____________________________________________________________________________
464void AliTPC::CreateMaterials()
465{
8c555625 466 //-----------------------------------------------
37831078 467 // Create Materials for for TPC simulations
8c555625 468 //-----------------------------------------------
469
470 //-----------------------------------------------------------------
471 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
472 //-----------------------------------------------------------------
1283eee5 473
73042f01 474 Int_t iSXFLD=gAlice->Field()->Integ();
475 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 476
477 Float_t amat[5]; // atomic numbers
478 Float_t zmat[5]; // z
479 Float_t wmat[5]; // proportions
480
481 Float_t density;
37831078 482 Float_t apure[2];
1283eee5 483
1283eee5 484
37831078 485 //***************** Gases *************************
486
487 //-------------------------------------------------
1283eee5 488 // pure gases
37831078 489 //-------------------------------------------------
1283eee5 490
37831078 491 // Neon
1283eee5 492
493
37831078 494 amat[0]= 20.18;
495 zmat[0]= 10.;
1283eee5 496 density = 0.0009;
37831078 497
498 apure[0]=amat[0];
1283eee5 499
37831078 500 AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
1283eee5 501
37831078 502 // Argon
1283eee5 503
37831078 504 amat[0]= 39.948;
505 zmat[0]= 18.;
506 density = 0.001782;
1283eee5 507
37831078 508 apure[1]=amat[0];
1283eee5 509
37831078 510 AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
511
1283eee5 512
513 //--------------------------------------------------------------
514 // gases - compounds
515 //--------------------------------------------------------------
516
517 Float_t amol[3];
518
37831078 519 // CO2
1283eee5 520
521 amat[0]=12.011;
522 amat[1]=15.9994;
523
524 zmat[0]=6.;
525 zmat[1]=8.;
526
527 wmat[0]=1.;
528 wmat[1]=2.;
529
530 density=0.001977;
531
532 amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
533
534 AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
37831078 535
1283eee5 536 // CF4
537
538 amat[0]=12.011;
539 amat[1]=18.998;
540
541 zmat[0]=6.;
542 zmat[1]=9.;
543
544 wmat[0]=1.;
545 wmat[1]=4.;
546
547 density=0.003034;
548
549 amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
550
551 AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
552
37831078 553
1283eee5 554 // CH4
555
556 amat[0]=12.011;
557 amat[1]=1.;
558
559 zmat[0]=6.;
560 zmat[1]=1.;
561
562 wmat[0]=1.;
563 wmat[1]=4.;
564
565 density=0.000717;
566
567 amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
568
569 AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
570
571 //----------------------------------------------------------------
572 // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
573 //----------------------------------------------------------------
37831078 574
575 char namate[21];
1283eee5 576 density = 0.;
577 Float_t am=0;
578 Int_t nc;
37831078 579 Float_t rho,absl,X0,buf[1];
1283eee5 580 Int_t nbuf;
37831078 581 Float_t a,z;
1283eee5 582
583 for(nc = 0;nc<fNoComp;nc++)
584 {
585
586 // retrive material constants
587
37831078 588 gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf);
1283eee5 589
590 amat[nc] = a;
591 zmat[nc] = z;
592
593 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
594
37831078 595 am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
1283eee5 596 density += fMixtProp[nc]*rho; // density of the mixture
597
598 }
599
600 // mixture proportions by weight!
601
602 for(nc = 0;nc<fNoComp;nc++)
603 {
604
605 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
606
37831078 607 wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
608 apure[nnc] : amol[nnc])/am;
609
610 }
611
612 // Drift gases 1 - nonsensitive, 2 - sensitive
1283eee5 613
1283eee5 614 AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
615 AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
1283eee5 616
1283eee5 617
37831078 618 // Air
619
620 amat[0] = 14.61;
621 zmat[0] = 7.3;
622 density = 0.001205;
1283eee5 623
37831078 624 AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
1283eee5 625
1283eee5 626
627 //----------------------------------------------------------------------
628 // solid materials
629 //----------------------------------------------------------------------
630
1283eee5 631
37831078 632 // Kevlar C14H22O2N2
1283eee5 633
37831078 634 amat[0] = 12.011;
635 amat[1] = 1.;
636 amat[2] = 15.999;
637 amat[3] = 14.006;
1283eee5 638
37831078 639 zmat[0] = 6.;
640 zmat[1] = 1.;
641 zmat[2] = 8.;
642 zmat[3] = 7.;
643
644 wmat[0] = 14.;
645 wmat[1] = 22.;
646 wmat[2] = 2.;
647 wmat[3] = 2.;
648
649 density = 1.45;
650
651 AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
652
653 // NOMEX
1283eee5 654
37831078 655 amat[0] = 12.011;
656 amat[1] = 1.;
657 amat[2] = 15.999;
658 amat[3] = 14.006;
659
660 zmat[0] = 6.;
661 zmat[1] = 1.;
662 zmat[2] = 8.;
663 zmat[3] = 7.;
664
665 wmat[0] = 14.;
666 wmat[1] = 22.;
667 wmat[2] = 2.;
668 wmat[3] = 2.;
669
670 density = 0.03;
1283eee5 671
fe4da5cc 672
37831078 673 AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
674
675 // Makrolon C16H18O3
676
677 amat[0] = 12.011;
678 amat[1] = 1.;
679 amat[2] = 15.999;
1283eee5 680
37831078 681 zmat[0] = 6.;
682 zmat[1] = 1.;
683 zmat[2] = 8.;
684
685 wmat[0] = 16.;
686 wmat[1] = 18.;
687 wmat[2] = 3.;
688
689 density = 1.2;
690
691 AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
692
1283eee5 693 // Mylar C5H4O2
694
695 amat[0]=12.011;
696 amat[1]=1.;
697 amat[2]=15.9994;
698
699 zmat[0]=6.;
700 zmat[1]=1.;
701 zmat[2]=8.;
702
703 wmat[0]=5.;
704 wmat[1]=4.;
705 wmat[2]=2.;
706
707 density = 1.39;
fe4da5cc 708
37831078 709 AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
1283eee5 710
ba1d05f9 711 // SiO2 - used later for the glass fiber
1283eee5 712
37831078 713 amat[0]=28.086;
714 amat[1]=15.9994;
1283eee5 715
37831078 716 zmat[0]=14.;
717 zmat[1]=8.;
1283eee5 718
37831078 719 wmat[0]=1.;
720 wmat[1]=2.;
1283eee5 721
1283eee5 722
ba1d05f9 723 AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
1283eee5 724
37831078 725 // Al
1283eee5 726
37831078 727 amat[0] = 26.98;
728 zmat[0] = 13.;
1283eee5 729
37831078 730 density = 2.7;
1283eee5 731
37831078 732 AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 733
37831078 734 // Si
1283eee5 735
37831078 736 amat[0] = 28.086;
9a3667bd 737 zmat[0] = 14.;
1283eee5 738
37831078 739 density = 2.33;
1283eee5 740
37831078 741 AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 742
37831078 743 // Cu
1283eee5 744
37831078 745 amat[0] = 63.546;
746 zmat[0] = 29.;
1283eee5 747
37831078 748 density = 8.96;
1283eee5 749
37831078 750 AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 751
37831078 752 // Tedlar C2H3F
1283eee5 753
37831078 754 amat[0] = 12.011;
755 amat[1] = 1.;
756 amat[2] = 18.998;
1283eee5 757
37831078 758 zmat[0] = 6.;
759 zmat[1] = 1.;
760 zmat[2] = 9.;
1283eee5 761
37831078 762 wmat[0] = 2.;
763 wmat[1] = 3.;
764 wmat[2] = 1.;
1283eee5 765
37831078 766 density = 1.71;
1283eee5 767
37831078 768 AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
1283eee5 769
1283eee5 770
37831078 771 // Plexiglas C5H8O2
1283eee5 772
37831078 773 amat[0]=12.011;
774 amat[1]=1.;
775 amat[2]=15.9994;
1283eee5 776
37831078 777 zmat[0]=6.;
778 zmat[1]=1.;
779 zmat[2]=8.;
1283eee5 780
37831078 781 wmat[0]=5.;
782 wmat[1]=8.;
783 wmat[2]=2.;
1283eee5 784
37831078 785 density=1.18;
1283eee5 786
37831078 787 AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
1283eee5 788
ba1d05f9 789 // Epoxy - C14 H20 O3
1283eee5 790
5a28a08f 791
792 amat[0]=12.011;
793 amat[1]=1.;
794 amat[2]=15.9994;
795
796 zmat[0]=6.;
797 zmat[1]=1.;
798 zmat[2]=8.;
799
ba1d05f9 800 wmat[0]=14.;
801 wmat[1]=20.;
5a28a08f 802 wmat[2]=3.;
803
ba1d05f9 804 density=1.25;
5a28a08f 805
806 AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
37831078 807
ba1d05f9 808 // Carbon
809
810 amat[0]=12.011;
811 zmat[0]=6.;
812 density= 2.265;
813
814 AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
815
816 // get epoxy
817
818 gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,X0,absl,buf,nbuf);
819
820 // Carbon fiber
821
822 wmat[0]=0.644; // by weight!
823 wmat[1]=0.356;
824
825 density=0.5*(1.25+2.265);
826
827 AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
828
829 // get SiO2
830
831 gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
832
833 wmat[0]=0.725; // by weight!
834 wmat[1]=0.275;
835
836 density=1.7;
837
838 AliMixture(39,"G10",amat,zmat,density,2,wmat);
839
840
841
842
37831078 843 //----------------------------------------------------------
844 // tracking media for gases
845 //----------------------------------------------------------
846
847 AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
848 AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
849 AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
850 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
851
852 //-----------------------------------------------------------
853 // tracking media for solids
854 //-----------------------------------------------------------
855
856 AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
857 AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
858 AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
859 AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
860 AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
861 AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
862 AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
863 AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
864 AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
865 AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
5a28a08f 866 AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
ba1d05f9 867 AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 868
fe4da5cc 869}
870
407ff276 871void AliTPC::GenerNoise(Int_t tablesize)
872{
873 //
874 //Generate table with noise
875 //
876 if (fTPCParam==0) {
877 // error message
878 fNoiseDepth=0;
879 return;
880 }
881 if (fNoiseTable) delete[] fNoiseTable;
882 fNoiseTable = new Float_t[tablesize];
883 fNoiseDepth = tablesize;
884 fCurrentNoise =0; //!index of the noise in the noise table
885
886 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
887 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
888}
889
890Float_t AliTPC::GetNoise()
891{
892 // get noise from table
893 // if ((fCurrentNoise%10)==0)
894 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
895 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
896 return fNoiseTable[fCurrentNoise++];
897 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
898}
899
900
792bb11c 901Bool_t AliTPC::IsSectorActive(Int_t sec)
902{
903 //
904 // check if the sector is active
905 if (!fActiveSectors) return kTRUE;
906 else return fActiveSectors[sec];
907}
908
909void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
910{
911 // activate interesting sectors
912 if (fActiveSectors) delete [] fActiveSectors;
913 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
914 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
915 for (Int_t i=0;i<n;i++)
916 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
917
918}
919
920void AliTPC::SetActiveSectors()
921{
922 //
923 // activate sectors which were hitted by tracks
924 //loop over tracks
925 if (fHitType==0) return; // if Clones hit - not short volume ID information
926 if (fActiveSectors) delete [] fActiveSectors;
927 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
928 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
929 TBranch * branch=0;
930 if (fHitType>1) branch = gAlice->TreeH()->GetBranch("TPC2");
931 else branch = gAlice->TreeH()->GetBranch("TPC");
932 Stat_t ntracks = gAlice->TreeH()->GetEntries();
933 // loop over all hits
934 for(Int_t track=0;track<ntracks;track++){
935 ResetHits();
936 //
937 if (fTrackHits && fHitType&4) {
938 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
939 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
940 br1->GetEvent(track);
941 br2->GetEvent(track);
942 Int_t *volumes = fTrackHits->GetVolumes();
943 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
944 fActiveSectors[volumes[j]]=kTRUE;
945 }
946
947 //
948 if (fTrackHitsOld && fHitType&2) {
949 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
950 br->GetEvent(track);
951 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
952 for (UInt_t j=0;j<ar->GetSize();j++){
953 fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
954 }
955 }
956 }
957
958}
959
960
961
fe4da5cc 962
afc42102 963void AliTPC::Digits2Clusters(TFile *of, Int_t eventnumber)
fe4da5cc 964{
3c0f9266 965 //-----------------------------------------------------------------
966 // This is a simple cluster finder.
3c0f9266 967 //-----------------------------------------------------------------
afc42102 968 AliTPCclusterer::Digits2Clusters(fTPCParam,of,eventnumber);
fe4da5cc 969}
970
73042f01 971extern Double_t SigmaY2(Double_t, Double_t, Double_t);
972extern Double_t SigmaZ2(Double_t, Double_t);
fe4da5cc 973//_____________________________________________________________________________
afc42102 974void AliTPC::Hits2Clusters(TFile *of, Int_t eventn)
fe4da5cc 975{
8c555625 976 //--------------------------------------------------------
fe4da5cc 977 // TPC simple cluster generator from hits
978 // obtained from the TPC Fast Simulator
8c555625 979 // The point errors are taken from the parametrization
980 //--------------------------------------------------------
981
982 //-----------------------------------------------------------------
983 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
984 //-----------------------------------------------------------------
73042f01 985 // Adopted to Marian's cluster data structure by I.Belikov, CERN,
986 // Jouri.Belikov@cern.ch
987 //----------------------------------------------------------------
988
989 /////////////////////////////////////////////////////////////////////////////
990 //
991 //---------------------------------------------------------------------
992 // ALICE TPC Cluster Parameters
993 //--------------------------------------------------------------------
994
995
996
997 // Cluster width in rphi
998 const Float_t kACrphi=0.18322;
999 const Float_t kBCrphi=0.59551e-3;
1000 const Float_t kCCrphi=0.60952e-1;
1001 // Cluster width in z
1002 const Float_t kACz=0.19081;
1003 const Float_t kBCz=0.55938e-3;
1004 const Float_t kCCz=0.30428;
1005
1006 TDirectory *savedir=gDirectory;
1007
1008 if (!of->IsOpen()) {
1009 cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
1010 return;
1011 }
3c0f9266 1012
afc42102 1013 //if(fDefaults == 0) SetDefaults();
cc80f89e 1014
73042f01 1015 Float_t sigmaRphi,sigmaZ,clRphi,clZ;
fe4da5cc 1016 //
1578254f 1017 TParticle *particle; // pointer to a given particle
fe4da5cc 1018 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 1019 Int_t sector;
fe4da5cc 1020 Int_t ipart;
1021 Float_t xyz[5];
1022 Float_t pl,pt,tanth,rpad,ratio;
fe4da5cc 1023 Float_t cph,sph;
1024
1025 //---------------------------------------------------------------
1026 // Get the access to the tracks
1027 //---------------------------------------------------------------
1028
73042f01 1029 TTree *tH = gAlice->TreeH();
1030 Stat_t ntracks = tH->GetEntries();
73042f01 1031
1032 //Switch to the output file
1033 of->cd();
1034
afc42102 1035 char cname[100];
1036
1037 sprintf(cname,"TreeC_TPC_%d",eventn);
1038
73042f01 1039 fTPCParam->Write(fTPCParam->GetTitle());
1040 AliTPCClustersArray carray;
1041 carray.Setup(fTPCParam);
1042 carray.SetClusterType("AliTPCcluster");
1043 carray.MakeTree();
1044
1045 Int_t nclusters=0; //cluster counter
fe4da5cc 1046
1047 //------------------------------------------------------------
cc80f89e 1048 // Loop over all sectors (72 sectors for 20 deg
1049 // segmentation for both lower and upper sectors)
1050 // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
3c0f9266 1051 // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
fe4da5cc 1052 //
3c0f9266 1053 // First cluster for sector 0 starts at "0"
fe4da5cc 1054 //------------------------------------------------------------
cc80f89e 1055
1056 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){
8c555625 1057 //MI change
cc80f89e 1058 fTPCParam->AdjustCosSin(isec,cph,sph);
fe4da5cc 1059
1060 //------------------------------------------------------------
1061 // Loop over tracks
1062 //------------------------------------------------------------
1063
1064 for(Int_t track=0;track<ntracks;track++){
1065 ResetHits();
73042f01 1066 tH->GetEvent(track);
fe4da5cc 1067 //
73042f01 1068 // Get number of the TPC hits
792bb11c 1069 //
39c8eb58 1070 tpcHit = (AliTPChit*)FirstHit(-1);
1071
fe4da5cc 1072 // Loop over hits
1073 //
39c8eb58 1074 while(tpcHit){
1075
1076 if (tpcHit->fQ == 0.) {
1077 tpcHit = (AliTPChit*) NextHit();
1078 continue; //information about track (I.Belikov)
1079 }
fe4da5cc 1080 sector=tpcHit->fSector; // sector number
39c8eb58 1081
39c8eb58 1082 if(sector != isec){
1083 tpcHit = (AliTPChit*) NextHit();
1084 continue;
1085 }
94de3818 1086 ipart=tpcHit->Track();
2ab0c725 1087 particle=gAlice->Particle(ipart);
1578254f 1088 pl=particle->Pz();
1089 pt=particle->Pt();
fe4da5cc 1090 if(pt < 1.e-9) pt=1.e-9;
1091 tanth=pl/pt;
1092 tanth = TMath::Abs(tanth);
94de3818 1093 rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
fe4da5cc 1094 ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
73042f01 1095
fe4da5cc 1096 // space-point resolutions
1097
73042f01 1098 sigmaRphi=SigmaY2(rpad,tanth,pt);
1099 sigmaZ =SigmaZ2(rpad,tanth );
fe4da5cc 1100
1101 // cluster widths
1102
73042f01 1103 clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
1104 clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
fe4da5cc 1105
1106 // temporary protection
1107
73042f01 1108 if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
1109 if(sigmaZ < 0.) sigmaZ=0.4e-3;
1110 if(clRphi < 0.) clRphi=2.5e-3;
1111 if(clZ < 0.) clZ=2.5e-5;
fe4da5cc 1112
1113 //
cc80f89e 1114
1115 //
1116 // smearing --> rotate to the 1 (13) or to the 25 (49) sector,
fe4da5cc 1117 // then the inaccuracy in a X-Y plane is only along Y (pad row)!
1118 //
94de3818 1119 Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
1120 Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
73042f01 1121 xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
1122 Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
1123 fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
1124 Float_t ymax=xprim*TMath::Tan(0.5*alpha);
1125 if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
94de3818 1126 xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
1127 if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
39c8eb58 1128 xyz[2]=sigmaRphi; // fSigmaY2
1129 xyz[3]=sigmaZ; // fSigmaZ2
1130 xyz[4]=tpcHit->fQ; // q
73042f01 1131
1132 AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
1133 if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
1134
94de3818 1135 Int_t tracks[3]={tpcHit->Track(), -1, -1};
39c8eb58 1136 AliTPCcluster cluster(tracks,xyz);
73042f01 1137
1138 clrow->InsertCluster(&cluster); nclusters++;
1139
39c8eb58 1140 tpcHit = (AliTPChit*)NextHit();
1141
1142
fe4da5cc 1143 } // end of loop over hits
73042f01 1144
1145 } // end of loop over tracks
1146
1147 Int_t nrows=fTPCParam->GetNRow(isec);
1148 for (Int_t irow=0; irow<nrows; irow++) {
1149 AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
1150 if (!clrow) continue;
1151 carray.StoreRow(isec,irow);
1152 carray.ClearRow(isec,irow);
1153 }
1154
cc80f89e 1155 } // end of loop over sectors
73042f01 1156
1157 cerr<<"Number of made clusters : "<<nclusters<<" \n";
6bc3458d 1158 carray.GetTree()->SetName(cname);
1159 carray.GetTree()->Write();
73042f01 1160
1161 savedir->cd(); //switch back to the input file
cc80f89e 1162
1163} // end of function
1164
1165//_________________________________________________________________
1166void AliTPC::Hits2ExactClustersSector(Int_t isec)
1167{
1168 //--------------------------------------------------------
1169 //calculate exact cross point of track and given pad row
1170 //resulting values are expressed in "digit" coordinata
1171 //--------------------------------------------------------
1172
1173 //-----------------------------------------------------------------
1174 // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
1175 //-----------------------------------------------------------------
1176 //
1177 if (fClustersArray==0){
1178 return;
1179 }
1180 //
1181 TParticle *particle; // pointer to a given particle
1182 AliTPChit *tpcHit; // pointer to a sigle TPC hit
5f16d237 1183 // Int_t sector,nhits;
cc80f89e 1184 Int_t ipart;
73042f01 1185 const Int_t kcmaxhits=30000;
de61d5d5 1186 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
1187 AliTPCFastVector & xxx = *xxxx;
73042f01 1188 Int_t maxhits = kcmaxhits;
cc80f89e 1189 //construct array for each padrow
1190 for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++)
1191 fClustersArray->CreateRow(isec,i);
fe4da5cc 1192
cc80f89e 1193 //---------------------------------------------------------------
1194 // Get the access to the tracks
1195 //---------------------------------------------------------------
1196
73042f01 1197 TTree *tH = gAlice->TreeH();
1198 Stat_t ntracks = tH->GetEntries();
2ab0c725 1199 Int_t npart = gAlice->GetNtrack();
5f16d237 1200 //MI change
1201 TBranch * branch=0;
792bb11c 1202 if (fHitType>1) branch = tH->GetBranch("TPC2");
5f16d237 1203 else branch = tH->GetBranch("TPC");
1204
cc80f89e 1205 //------------------------------------------------------------
1206 // Loop over tracks
1207 //------------------------------------------------------------
792bb11c 1208
5f16d237 1209 for(Int_t track=0;track<ntracks;track++){
1210 Bool_t isInSector=kTRUE;
cc80f89e 1211 ResetHits();
792bb11c 1212 isInSector = TrackInVolume(isec,track);
5f16d237 1213 if (!isInSector) continue;
1214 //MI change
1215 branch->GetEntry(track); // get next track
cc80f89e 1216 //
1217 // Get number of the TPC hits and a pointer
1218 // to the particles
cc80f89e 1219 // Loop over hits
1220 //
1221 Int_t currentIndex=0;
1222 Int_t lastrow=-1; //last writen row
5f16d237 1223
1224 //M.I. changes
1225
1226 tpcHit = (AliTPChit*)FirstHit(-1);
1227 while(tpcHit){
1228
1229 Int_t sector=tpcHit->fSector; // sector number
1230 if(sector != isec){
1231 tpcHit = (AliTPChit*) NextHit();
1232 continue;
1233 }
1234
94de3818 1235 ipart=tpcHit->Track();
2ab0c725 1236 if (ipart<npart) particle=gAlice->Particle(ipart);
cc80f89e 1237
1238 //find row number
1239
94de3818 1240 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
cc80f89e 1241 Int_t index[3]={1,isec,0};
1242 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
5f16d237 1243 if (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
cc80f89e 1244 if (lastrow<0) lastrow=currentrow;
1245 if (currentrow==lastrow){
1246 if ( currentIndex>=maxhits){
73042f01 1247 maxhits+=kcmaxhits;
cc80f89e 1248 xxx.ResizeTo(4*maxhits);
1249 }
1250 xxx(currentIndex*4)=x[0];
1251 xxx(currentIndex*4+1)=x[1];
1252 xxx(currentIndex*4+2)=x[2];
1253 xxx(currentIndex*4+3)=tpcHit->fQ;
1254 currentIndex++;
1255 }
1256 else
1257 if (currentIndex>2){
1258 Float_t sumx=0;
1259 Float_t sumx2=0;
1260 Float_t sumx3=0;
1261 Float_t sumx4=0;
1262 Float_t sumy=0;
1263 Float_t sumxy=0;
1264 Float_t sumx2y=0;
1265 Float_t sumz=0;
1266 Float_t sumxz=0;
1267 Float_t sumx2z=0;
1268 Float_t sumq=0;
1269 for (Int_t index=0;index<currentIndex;index++){
1270 Float_t x,x2,x3,x4;
1271 x=x2=x3=x4=xxx(index*4);
1272 x2*=x;
1273 x3*=x2;
1274 x4*=x3;
1275 sumx+=x;
1276 sumx2+=x2;
1277 sumx3+=x3;
1278 sumx4+=x4;
1279 sumy+=xxx(index*4+1);
1280 sumxy+=xxx(index*4+1)*x;
1281 sumx2y+=xxx(index*4+1)*x2;
1282 sumz+=xxx(index*4+2);
1283 sumxz+=xxx(index*4+2)*x;
1284 sumx2z+=xxx(index*4+2)*x2;
1285 sumq+=xxx(index*4+3);
1286 }
73042f01 1287 Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
cc80f89e 1288 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
1289 sumx2*(sumx*sumx3-sumx2*sumx2);
1290
1291 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
1292 sumx2*(sumxy*sumx3-sumx2y*sumx2);
1293 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
1294 sumx2*(sumxz*sumx3-sumx2z*sumx2);
1295
1296 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
1297 sumx2*(sumx*sumx2y-sumx2*sumxy);
1298 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
1299 sumx2*(sumx*sumx2z-sumx2*sumxz);
1300
73042f01 1301 Float_t y=detay/det+centralPad;
cc80f89e 1302 Float_t z=detaz/det;
1303 Float_t by=detby/det; //y angle
1304 Float_t bz=detbz/det; //z angle
1305 sumy/=Float_t(currentIndex);
1306 sumz/=Float_t(currentIndex);
5f16d237 1307
cc80f89e 1308 AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
5f16d237 1309 if (row!=0) {
1310 AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
1311 // AliComplexCluster cl;
1312 cl->fX=z;
1313 cl->fY=y;
1314 cl->fQ=sumq;
1315 cl->fSigmaX2=bz;
1316 cl->fSigmaY2=by;
1317 cl->fTracks[0]=ipart;
1318 }
cc80f89e 1319 currentIndex=0;
1320 lastrow=currentrow;
1321 } //end of calculating cluster for given row
1322
1323
5f16d237 1324 tpcHit = (AliTPChit*)NextHit();
cc80f89e 1325 } // end of loop over hits
1326 } // end of loop over tracks
1327 //write padrows to tree
1328 for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) {
1329 fClustersArray->StoreRow(isec,ii);
1330 fClustersArray->ClearRow(isec,ii);
1331 }
1332 xxxx->Delete();
1333
fe4da5cc 1334}
0a61bf9d 1335
1336
1337
1338//__
1339void AliTPC::SDigits2Digits2(Int_t eventnumber)
1340{
1341 //create digits from summable digits
407ff276 1342 GenerNoise(500000); //create teble with noise
0a61bf9d 1343 char sname[100];
1344 char dname[100];
1345 sprintf(sname,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1346 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1347
1348 //conect tree with sSDigits
1349 TTree *t = (TTree *)gDirectory->Get(sname);
1350 AliSimDigits digarr, *dummy=&digarr;
1351 t->GetBranch("Segment")->SetAddress(&dummy);
1352 Stat_t nentries = t->GetEntries();
1353
5f16d237 1354 // set zero suppression
1355
1356 fTPCParam->SetZeroSup(2);
1357
1358 // get zero suppression
1359
1360 Int_t zerosup = fTPCParam->GetZeroSup();
1361
1362 //make tree with digits
1363
0a61bf9d 1364 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1365 arr->SetClass("AliSimDigits");
1366 arr->Setup(fTPCParam);
1367 arr->MakeTree(fDigitsFile);
1368
1369 AliTPCParam * par =fTPCParam;
5f16d237 1370
0a61bf9d 1371 //Loop over segments of the TPC
5f16d237 1372
0a61bf9d 1373 for (Int_t n=0; n<nentries; n++) {
1374 t->GetEvent(n);
1375 Int_t sec, row;
1376 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
1377 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
1378 continue;
1379 }
792bb11c 1380 if (!IsSectorActive(sec)) continue;
0a61bf9d 1381 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1382 Int_t nrows = digrow->GetNRows();
1383 Int_t ncols = digrow->GetNCols();
1384
1385 digrow->ExpandBuffer();
1386 digarr.ExpandBuffer();
1387 digrow->ExpandTrackBuffer();
1388 digarr.ExpandTrackBuffer();
1389
5f16d237 1390
407ff276 1391 Short_t * pamp0 = digarr.GetDigits();
1392 Int_t * ptracks0 = digarr.GetTracks();
1393 Short_t * pamp1 = digrow->GetDigits();
1394 Int_t * ptracks1 = digrow->GetTracks();
1395 Int_t nelems =nrows*ncols;
1396 Int_t saturation = fTPCParam->GetADCSat();
1397 //use internal structure of the AliDigits - for speed reason
1398 //if you cahnge implementation
1399 //of the Alidigits - it must be rewriten -
1400 for (Int_t i= 0; i<nelems; i++){
1401 // Float_t q = *pamp0;
1402 //q/=16.; //conversion faktor
1403 //Float_t noise= GetNoise();
1404 //q+=noise;
1405 //q= TMath::Nint(q);
1406 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1407 if (q>zerosup){
1408 if (q>saturation) q=saturation;
1409 *pamp1=(Short_t)q;
1410 //if (ptracks0[0]==0)
1411 // ptracks1[0]=1;
1412 //else
1413 ptracks1[0]=ptracks0[0];
1414 ptracks1[nelems]=ptracks0[nelems];
1415 ptracks1[2*nelems]=ptracks0[2*nelems];
1416 }
1417 pamp0++;
1418 pamp1++;
1419 ptracks0++;
1420 ptracks1++;
1421 }
5f16d237 1422
5f16d237 1423 arr->StoreRow(sec,row);
1424 arr->ClearRow(sec,row);
9fe90376 1425 // cerr<<sec<<"\t"<<row<<"\n";
5f16d237 1426 }
0a61bf9d 1427
0a61bf9d 1428
5f16d237 1429 //write results
0a61bf9d 1430
5f16d237 1431
1432 arr->GetTree()->SetName(dname);
1433 arr->GetTree()->Write();
1434 delete arr;
1435}
1436//_________________________________________
1437void AliTPC::Merge(TTree * intree, Int_t *mask, Int_t nin, Int_t outid)
1438{
1439
1440 //intree - pointer to array of trees with s digits
1441 //mask - mask for each
1442 //nin - number of inputs
1443 //outid - event number of the output event
1444
1445 //create digits from summable digits
1446 //conect tree with sSDigits
1447
1448
1449 AliSimDigits ** digarr = new AliSimDigits*[nin];
1450 for (Int_t i1=0;i1<nin; i1++){
1451 digarr[i1]=0;
1452 intree[i1].GetBranch("Segment")->SetAddress(&digarr[i1]);
0a61bf9d 1453 }
5f16d237 1454 Stat_t nentries = intree[0].GetEntries();
1455
1456 //make tree with digits
1457 char dname[100];
1458 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),outid);
1459 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1460 arr->SetClass("AliSimDigits");
1461 arr->Setup(fTPCParam);
1462 arr->MakeTree(fDigitsFile);
0a61bf9d 1463
5f16d237 1464 // set zero suppression
0a61bf9d 1465
5f16d237 1466 fTPCParam->SetZeroSup(2);
0a61bf9d 1467
5f16d237 1468 // get zero suppression
1469
1470 Int_t zerosup = fTPCParam->GetZeroSup();
1471
1472
1473 AliTPCParam * par =fTPCParam;
1474
1475 //Loop over segments of the TPC
1476 for (Int_t n=0; n<nentries; n++) {
0a61bf9d 1477
5f16d237 1478 for (Int_t i=0;i<nin; i++){
1479 //connect proper digits
1480 intree[i].GetEvent(n);
1481 digarr[i]->ExpandBuffer();
1482 digarr[i]->ExpandTrackBuffer();
1483 }
1484 Int_t sec, row;
1485 if (!par->AdjustSectorRow(digarr[0]->GetID(),sec,row)) {
1486 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr[0]->GetID()<<endl;
1487 continue;
1488 }
0a61bf9d 1489
5f16d237 1490 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1491 Int_t nrows = digrow->GetNRows();
1492 Int_t ncols = digrow->GetNCols();
0a61bf9d 1493
5f16d237 1494 digrow->ExpandBuffer();
1495 digrow->ExpandTrackBuffer();
1496
1497 for (Int_t rows=0;rows<nrows; rows++){
1498 for (Int_t col=0;col<ncols; col++){
1499 Float_t q=0;
1500 Int_t label[1000]; // i hope no more than 300 events merged
1501 Int_t labptr = 0;
1502 // looop over digits
1503 for (Int_t i=0;i<nin; i++){
1504 q += digarr[i]->GetDigitFast(rows,col);
1505 for (Int_t tr=0;tr<3;tr++) {
1506 Int_t lab = digarr[i]->GetTrackIDFast(rows,col,tr);
1507 if ( lab > 1) {
1508 label[labptr]=lab+mask[i]-2;
1509 labptr++;
1510 }
1511 }
1512 }
1513 //add noise
1514 q = gRandom->Gaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac()*16);
1515
1516 q/=16; //conversion faktor
1517 q=(Short_t)q;
1518
1519 if (q> zerosup){
1520
43510af3 1521 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat();
1522 digrow->SetDigitFast((Short_t)q,rows,col);
5f16d237 1523 for (Int_t tr=0;tr<3;tr++){
1524 if (tr<labptr)
1525 ((AliSimDigits*)digrow)->SetTrackIDFast(label[tr],rows,col,tr);
1526 else
1527 ((AliSimDigits*)digrow)->SetTrackIDFast(-1,rows,col,tr);
1528 }
1529 }
1530 }
1531 }
1532 arr->StoreRow(sec,row);
1533
1534 arr->ClearRow(sec,row);
792bb11c 1535
5f16d237 1536 }
1537
1538 delete digarr;
1539 arr->GetTree()->SetName(dname);
1540 arr->GetTree()->Write();
1541
1542 delete arr;
0a61bf9d 1543
0a61bf9d 1544}
1545
0a61bf9d 1546/*_________________________________________
afc42102 1547void AliTPC::SDigits2Digits(Int_t eventnumber)
2ab0c725 1548{
afc42102 1549
1550
1551 cerr<<"Digitizing TPC...\n";
1552
1553 Hits2Digits(eventnumber);
1554
1555
1556 //write results
1557
1558 // char treeName[100];
1559
1560 // sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1561
1562 // GetDigitsArray()->GetTree()->Write(treeName);
1563}
0a61bf9d 1564*/
afc42102 1565//__________________________________________________________________
1566void AliTPC::SetDefaults(){
1567
1568
1569 cerr<<"Setting default parameters...\n";
1570
1571 // Set response functions
1572
2ab0c725 1573 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
1574 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
1575 AliTPCPRF2D * prfouter = new AliTPCPRF2D;
1576 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1577 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1578 rf->SetOffset(3*param->GetZSigma());
1579 rf->Update();
afc42102 1580
1581 TDirectory *savedir=gDirectory;
2ab0c725 1582 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
1583 if (!f->IsOpen()) {
afc42102 1584 cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
2ab0c725 1585 exit(3);
1586 }
1587 prfinner->Read("prf_07504_Gati_056068_d02");
1588 prfouter->Read("prf_10006_Gati_047051_d03");
1589 f->Close();
afc42102 1590 savedir->cd();
1591
2ab0c725 1592 param->SetInnerPRF(prfinner);
1593 param->SetOuterPRF(prfouter);
1594 param->SetTimeRF(rf);
1595
afc42102 1596 // set fTPCParam
1597
2ab0c725 1598 SetParam(param);
1599
afc42102 1600
1601 fDefaults = 1;
1602
1603}
1604//__________________________________________________________________
1605void AliTPC::Hits2Digits(Int_t eventnumber)
1606{
1607 //----------------------------------------------------
1608 // Loop over all sectors for a single event
1609 //----------------------------------------------------
1610
1611
1612 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1613 GenerNoise(500000); //create teble with noise
2ab0c725 1614
1615 //setup TPCDigitsArray
afc42102 1616
1617 if(GetDigitsArray()) delete GetDigitsArray();
1618
2ab0c725 1619 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1620 arr->SetClass("AliSimDigits");
afc42102 1621 arr->Setup(fTPCParam);
2ab0c725 1622 arr->MakeTree(fDigitsFile);
2ab0c725 1623 SetDigitsArray(arr);
1624
afc42102 1625 fDigitsSwitch=0; // standard digits
2ab0c725 1626
0a9b058d 1627 cerr<<"Digitizing TPC -- normal digits...\n";
fe4da5cc 1628
792bb11c 1629 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
cc80f89e 1630
afc42102 1631 // write results
1632
1633 char treeName[100];
1634
1635 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
f8cf550c 1636
6bc3458d 1637 GetDigitsArray()->GetTree()->SetName(treeName);
1638 GetDigitsArray()->GetTree()->Write();
cc80f89e 1639
cc80f89e 1640
8c555625 1641}
1642
afc42102 1643
1644
f8cf550c 1645//__________________________________________________________________
0a61bf9d 1646void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1647{
1648
1649 //-----------------------------------------------------------
1650 // summable digits - 16 bit "ADC", no noise, no saturation
1651 //-----------------------------------------------------------
1652
1653 //----------------------------------------------------
afc42102 1654 // Loop over all sectors for a single event
f8cf550c 1655 //----------------------------------------------------
1656
afc42102 1657
1658 if(fDefaults == 0) SetDefaults();
407ff276 1659 GenerNoise(500000); //create table with noise
afc42102 1660 //setup TPCDigitsArray
1661
1662 if(GetDigitsArray()) delete GetDigitsArray();
1663
1664 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1665 arr->SetClass("AliSimDigits");
1666 arr->Setup(fTPCParam);
1667 arr->MakeTree(fDigitsFile);
1668 SetDigitsArray(arr);
1669
0a9b058d 1670 cerr<<"Digitizing TPC -- summable digits...\n";
afc42102 1671
1672 fDigitsSwitch=1; // summable digits
5f16d237 1673
1674 // set zero suppression to "0"
1675
1676 fTPCParam->SetZeroSup(0);
f8cf550c 1677
792bb11c 1678 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
f8cf550c 1679
afc42102 1680
1681 // write results
1682
1683 char treeName[100];
1684
1685 sprintf(treeName,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1686
6bc3458d 1687 GetDigitsArray()->GetTree()->SetName(treeName);
1688 GetDigitsArray()->GetTree()->Write();
afc42102 1689
f8cf550c 1690}
8c555625 1691
afc42102 1692
1693
0a61bf9d 1694//__________________________________________________________________
1695void AliTPC::Hits2SDigits()
1696{
1697
1698 //-----------------------------------------------------------
1699 // summable digits - 16 bit "ADC", no noise, no saturation
1700 //-----------------------------------------------------------
1701
1702 //----------------------------------------------------
1703 // Loop over all sectors for a single event
1704 //----------------------------------------------------
1705 //MI change - for pp run
1706 Int_t eventnumber = gAlice->GetEvNumber();
1707
1708 if(fDefaults == 0) SetDefaults();
180f4872 1709 GenerNoise(500000); //create table with noise
0a61bf9d 1710
1711 //setup TPCDigitsArray
1712
1713 if(GetDigitsArray()) delete GetDigitsArray();
1714
1715 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1716 arr->SetClass("AliSimDigits");
1717 arr->Setup(fTPCParam);
1718 arr->MakeTree(fDigitsFile);
1719 SetDigitsArray(arr);
1720
0a9b058d 1721 cerr<<"Digitizing TPC -- summable digits...\n";
0a61bf9d 1722
1723 // fDigitsSwitch=1; // summable digits -for the moment direct
1724
792bb11c 1725 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
0a61bf9d 1726
1727
1728 // write results
1729 char treeName[100];
1730
1731 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1732
6bc3458d 1733 GetDigitsArray()->GetTree()->SetName(treeName);
1734 GetDigitsArray()->GetTree()->Write();
0a61bf9d 1735
1736}
1737
1738
fe4da5cc 1739//_____________________________________________________________________________
8c555625 1740void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1741{
8c555625 1742 //-------------------------------------------------------------------
fe4da5cc 1743 // TPC conversion from hits to digits.
8c555625 1744 //-------------------------------------------------------------------
1745
1746 //-----------------------------------------------------------------
1747 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1748 //-----------------------------------------------------------------
1749
fe4da5cc 1750 //-------------------------------------------------------
8c555625 1751 // Get the access to the track hits
fe4da5cc 1752 //-------------------------------------------------------
8c555625 1753
afc42102 1754 // check if the parameters are set - important if one calls this method
1755 // directly, not from the Hits2Digits
1756
1757 if(fDefaults == 0) SetDefaults();
cc80f89e 1758
73042f01 1759 TTree *tH = gAlice->TreeH(); // pointer to the hits tree
1760 Stat_t ntracks = tH->GetEntries();
8c555625 1761
1762 if( ntracks > 0){
1763
1764 //-------------------------------------------
1765 // Only if there are any tracks...
1766 //-------------------------------------------
1767
8c555625 1768 TObjArray **row;
fe4da5cc 1769
a62d28a2 1770 //printf("*** Processing sector number %d ***\n",isec);
8c555625 1771
1772 Int_t nrows =fTPCParam->GetNRow(isec);
1773
1774 row= new TObjArray* [nrows];
fe4da5cc 1775
73042f01 1776 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1777
1778 //--------------------------------------------------------
1779 // Digitize this sector, row by row
de61d5d5 1780 // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
8c555625 1781 // each one containing electrons accepted on this
1782 // row, assigned into tracks
1783 //--------------------------------------------------------
1784
1785 Int_t i;
1786
2ab0c725 1787 if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree(fDigitsFile);
8c555625 1788
cc80f89e 1789 for (i=0;i<nrows;i++){
8c555625 1790
afc42102 1791 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1792
cc80f89e 1793 DigitizeRow(i,isec,row);
8c555625 1794
cc80f89e 1795 fDigitsArray->StoreRow(isec,i);
8c555625 1796
792bb11c 1797 Int_t ndig = dig->GetDigitSize();
1798 if (gDebug > 10) printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
1799
cc80f89e 1800 fDigitsArray->ClearRow(isec,i);
8c555625 1801
cc80f89e 1802
8c555625 1803 } // end of the sector digitization
8c555625 1804
cc80f89e 1805 for(i=0;i<nrows;i++){
39c8eb58 1806 row[i]->Delete();
1807 delete row[i];
cc80f89e 1808 }
1809
8c555625 1810 delete [] row; // delete the array of pointers to TObjArray-s
1811
1812 } // ntracks >0
8c555625 1813
cc80f89e 1814} // end of Hits2DigitsSector
8c555625 1815
8c555625 1816
8c555625 1817//_____________________________________________________________________________
cc80f89e 1818void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1819{
1820 //-----------------------------------------------------------
1821 // Single row digitization, coupling from the neighbouring
1822 // rows taken into account
1823 //-----------------------------------------------------------
1824
1825 //-----------------------------------------------------------------
1826 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1827 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1828 //-----------------------------------------------------------------
1829
1830
8c555625 1831 Float_t zerosup = fTPCParam->GetZeroSup();
1832 Int_t nrows =fTPCParam->GetNRow(isec);
cc80f89e 1833 fCurrentIndex[1]= isec;
8c555625 1834
8c555625 1835
73042f01 1836 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1837 Int_t nofTbins = fTPCParam->GetMaxTBin();
1838 Int_t indexRange[4];
8c555625 1839 //
1840 // Integrated signal for this row
1841 // and a single track signal
cc80f89e 1842 //
de61d5d5 1843
1844 AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
1845 AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
8c555625 1846 //
de61d5d5 1847 AliTPCFastMatrix &total = *m1;
8c555625 1848
1849 // Array of pointers to the label-signal list
1850
73042f01 1851 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1852 Float_t **pList = new Float_t* [nofDigits];
8c555625 1853
1854 Int_t lp;
cc80f89e 1855 Int_t i1;
73042f01 1856 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1857 //
cc80f89e 1858 //calculate signal
1859 //
1860 Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
1861 Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
1862 for (Int_t row= row1;row<=row2;row++){
1863 Int_t nTracks= rows[row]->GetEntries();
1864 for (i1=0;i1<nTracks;i1++){
1865 fCurrentIndex[2]= row;
1866 fCurrentIndex[3]=irow;
1867 if (row==irow){
1868 m2->Zero(); // clear single track signal matrix
73042f01 1869 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1870 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1871 }
73042f01 1872 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1873 }
8c555625 1874 }
cc80f89e 1875
8c555625 1876 Int_t tracks[3];
8c555625 1877
cc80f89e 1878 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1879 Int_t gi=-1;
1880 Float_t fzerosup = zerosup+0.5;
1881 for(Int_t it=0;it<nofTbins;it++){
1882 Float_t *pq = &(total.UncheckedAt(0,it));
1883 for(Int_t ip=0;ip<nofPads;ip++){
1884 gi++;
1885 Float_t q=*pq;
1886 pq++;
f8cf550c 1887 if(fDigitsSwitch == 0){
407ff276 1888 q+=GetNoise();
de61d5d5 1889 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1890 q = TMath::Nint(q);
f8cf550c 1891 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
cc80f89e 1892
f8cf550c 1893 }
1894
1895 else {
5f16d237 1896 if(q <= 0.) continue; // do not fill zeros
68771f83 1897 if(q>2000.) q=2000.;
f8cf550c 1898 q *= 16.;
68771f83 1899 q = TMath::Nint(q);
f8cf550c 1900 }
8c555625 1901
1902 //
1903 // "real" signal or electronic noise (list = -1)?
1904 //
1905
1906 for(Int_t j1=0;j1<3;j1++){
407ff276 1907 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 1908 }
1909
cc80f89e 1910//Begin_Html
1911/*
1912 <A NAME="AliDigits"></A>
1913 using of AliDigits object
1914*/
1915//End_Html
1916 dig->SetDigitFast((Short_t)q,it,ip);
1917 if (fDigitsArray->IsSimulated())
1918 {
1919 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
1920 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
1921 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
1922 }
1923
8c555625 1924
1925 } // end of loop over time buckets
1926 } // end of lop over pads
1927
1928 //
1929 // This row has been digitized, delete nonused stuff
1930 //
1931
73042f01 1932 for(lp=0;lp<nofDigits;lp++){
8c555625 1933 if(pList[lp]) delete [] pList[lp];
1934 }
1935
1936 delete [] pList;
1937
1938 delete m1;
1939 delete m2;
cc80f89e 1940 // delete m3;
8c555625 1941
1942} // end of DigitizeRow
cc80f89e 1943
8c555625 1944//_____________________________________________________________________________
cc80f89e 1945
de61d5d5 1946Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
1947 AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
8c555625 1948{
1949
1950 //---------------------------------------------------------------
1951 // Calculates 2-D signal (pad,time) for a single track,
1952 // returns a pointer to the signal matrix and the track label
1953 // No digitization is performed at this level!!!
1954 //---------------------------------------------------------------
1955
1956 //-----------------------------------------------------------------
1957 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1958 // Modified: Marian Ivanov
8c555625 1959 //-----------------------------------------------------------------
1960
de61d5d5 1961 AliTPCFastVector *tv;
1962
1963 tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
1964 AliTPCFastVector &v = *tv;
8c555625 1965
1966 Float_t label = v(0);
73042f01 1967 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3])-1)/2;
8c555625 1968
8c555625 1969 Int_t nElectrons = (tv->GetNrows()-1)/4;
73042f01 1970 indexRange[0]=9999; // min pad
1971 indexRange[1]=-1; // max pad
1972 indexRange[2]=9999; //min time
1973 indexRange[3]=-1; // max time
8c555625 1974
de61d5d5 1975 AliTPCFastMatrix &signal = *m1;
1976 AliTPCFastMatrix &total = *m2;
8c555625 1977 //
1978 // Loop over all electrons
1979 //
8c555625 1980 for(Int_t nel=0; nel<nElectrons; nel++){
cc80f89e 1981 Int_t idx=nel*4;
1982 Float_t aval = v(idx+4);
1983 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
1984 Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
de61d5d5 1985 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
1986
1987 Int_t *index = fTPCParam->GetResBin(0);
1988 Float_t *weight = & (fTPCParam->GetResWeight(0));
1989
1990 if (n>0) for (Int_t i =0; i<n; i++){
73042f01 1991 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
de61d5d5 1992
1993 if (pad>=0){
cc80f89e 1994 Int_t time=index[2];
de61d5d5 1995 Float_t qweight = *(weight)*eltoadcfac;
cc80f89e 1996
de61d5d5 1997 if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
1998 total.UncheckedAt(pad,time)+=qweight;
1999 if (indexRange[0]>pad) indexRange[0]=pad;
2000 if (indexRange[1]<pad) indexRange[1]=pad;
2001 if (indexRange[2]>time) indexRange[2]=time;
2002 if (indexRange[3]<time) indexRange[3]=time;
2003
2004 index+=3;
2005 weight++;
2006
cc80f89e 2007 }
2008 }
8c555625 2009 } // end of loop over electrons
cc80f89e 2010
8c555625 2011 return label; // returns track label when finished
2012}
2013
2014//_____________________________________________________________________________
de61d5d5 2015void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *m,
2016 Int_t *indexRange, Float_t **pList)
8c555625 2017{
2018 //----------------------------------------------------------------------
2019 // Updates the list of tracks contributing to digits for a given row
2020 //----------------------------------------------------------------------
2021
2022 //-----------------------------------------------------------------
2023 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2024 //-----------------------------------------------------------------
2025
de61d5d5 2026 AliTPCFastMatrix &signal = *m;
8c555625 2027
2028 // lop over nonzero digits
2029
73042f01 2030 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
2031 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 2032
2033
921bf71a 2034 // accept only the contribution larger than 500 electrons (1/2 s_noise)
2035
cc80f89e 2036 if(signal(ip,it)<0.5) continue;
921bf71a 2037
2038
73042f01 2039 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 2040
73042f01 2041 if(!pList[globalIndex]){
8c555625 2042
2043 //
2044 // Create new list (6 elements - 3 signals and 3 labels),
8c555625 2045 //
2046
73042f01 2047 pList[globalIndex] = new Float_t [6];
8c555625 2048
2049 // set list to -1
2050
73042f01 2051 *pList[globalIndex] = -1.;
2052 *(pList[globalIndex]+1) = -1.;
2053 *(pList[globalIndex]+2) = -1.;
2054 *(pList[globalIndex]+3) = -1.;
2055 *(pList[globalIndex]+4) = -1.;
2056 *(pList[globalIndex]+5) = -1.;
8c555625 2057
2058
73042f01 2059 *pList[globalIndex] = label;
2060 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2061 }
2062 else{
2063
2064 // check the signal magnitude
2065
73042f01 2066 Float_t highest = *(pList[globalIndex]+3);
2067 Float_t middle = *(pList[globalIndex]+4);
2068 Float_t lowest = *(pList[globalIndex]+5);
8c555625 2069
2070 //
2071 // compare the new signal with already existing list
2072 //
2073
2074 if(signal(ip,it)<lowest) continue; // neglect this track
2075
2076 //
2077
2078 if (signal(ip,it)>highest){
73042f01 2079 *(pList[globalIndex]+5) = middle;
2080 *(pList[globalIndex]+4) = highest;
2081 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2082
73042f01 2083 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2084 *(pList[globalIndex]+1) = *pList[globalIndex];
2085 *pList[globalIndex] = label;
8c555625 2086 }
2087 else if (signal(ip,it)>middle){
73042f01 2088 *(pList[globalIndex]+5) = middle;
2089 *(pList[globalIndex]+4) = signal(ip,it);
8c555625 2090
73042f01 2091 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2092 *(pList[globalIndex]+1) = label;
8c555625 2093 }
2094 else{
73042f01 2095 *(pList[globalIndex]+5) = signal(ip,it);
2096 *(pList[globalIndex]+2) = label;
8c555625 2097 }
2098 }
2099
2100 } // end of loop over pads
2101 } // end of loop over time bins
2102
2103
2104
8c555625 2105}//end of GetList
2106//___________________________________________________________________
2107void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
2108 Stat_t ntracks,TObjArray **row)
2109{
2110
2111 //-----------------------------------------------------------------
2112 // Prepares the sector digitization, creates the vectors of
2113 // tracks for each row of this sector. The track vector
2114 // contains the track label and the position of electrons.
2115 //-----------------------------------------------------------------
2116
2117 //-----------------------------------------------------------------
2118 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2119 //-----------------------------------------------------------------
2120
cc80f89e 2121 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 2122 Int_t i;
cc80f89e 2123 Float_t xyz[4];
8c555625 2124
2125 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 2126 //MI change
2127 TBranch * branch=0;
792bb11c 2128 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 2129 else branch = TH->GetBranch("TPC");
2130
8c555625 2131
2132 //----------------------------------------------
2133 // Create TObjArray-s, one for each row,
de61d5d5 2134 // each TObjArray will store the AliTPCFastVectors
2135 // of electrons, one AliTPCFastVectors per each track.
8c555625 2136 //----------------------------------------------
2137
f74bb6f5 2138 Int_t *nofElectrons = new Int_t [nrows]; // electron counter for each row
de61d5d5 2139 AliTPCFastVector **tracks = new AliTPCFastVector* [nrows]; //pointers to the track vectors
2140
8c555625 2141 for(i=0; i<nrows; i++){
2142 row[i] = new TObjArray;
f74bb6f5 2143 nofElectrons[i]=0;
2144 tracks[i]=0;
8c555625 2145 }
8c555625 2146
37831078 2147
2148
8c555625 2149 //--------------------------------------------------------------------
2150 // Loop over tracks, the "track" contains the full history
2151 //--------------------------------------------------------------------
2152
2153 Int_t previousTrack,currentTrack;
2154 previousTrack = -1; // nothing to store so far!
2155
2156 for(Int_t track=0;track<ntracks;track++){
39c8eb58 2157 Bool_t isInSector=kTRUE;
8c555625 2158 ResetHits();
792bb11c 2159 isInSector = TrackInVolume(isec,track);
39c8eb58 2160 if (!isInSector) continue;
2161 //MI change
2162 branch->GetEntry(track); // get next track
2163
2164 //M.I. changes
8c555625 2165
39c8eb58 2166 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 2167
2168 //--------------------------------------------------------------
2169 // Loop over hits
2170 //--------------------------------------------------------------
2171
8c555625 2172
39c8eb58 2173 while(tpcHit){
8c555625 2174
2175 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 2176 if(sector != isec){
2177 tpcHit = (AliTPChit*) NextHit();
2178 continue;
2179 }
8c555625 2180
94de3818 2181 currentTrack = tpcHit->Track(); // track number
39c8eb58 2182
2183
8c555625 2184 if(currentTrack != previousTrack){
2185
2186 // store already filled fTrack
2187
2188 for(i=0;i<nrows;i++){
2189 if(previousTrack != -1){
73042f01 2190 if(nofElectrons[i]>0){
de61d5d5 2191 AliTPCFastVector &v = *tracks[i];
8c555625 2192 v(0) = previousTrack;
73042f01 2193 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2194 row[i]->Add(tracks[i]);
8c555625 2195 }
2196 else{
de61d5d5 2197 delete tracks[i]; // delete empty AliTPCFastVector
cc80f89e 2198 tracks[i]=0;
8c555625 2199 }
2200 }
2201
73042f01 2202 nofElectrons[i]=0;
de61d5d5 2203 tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors for the next fTrack
8c555625 2204
2205 } // end of loop over rows
2206
2207 previousTrack=currentTrack; // update track label
2208 }
2209
73042f01 2210 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 2211
2212 //---------------------------------------------------
2213 // Calculate the electron attachment probability
2214 //---------------------------------------------------
2215
cc80f89e 2216
94de3818 2217 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
cc80f89e 2218 /fTPCParam->GetDriftV();
8c555625 2219 // in microseconds!
73042f01 2220 Float_t attProb = fTPCParam->GetAttCoef()*
8c555625 2221 fTPCParam->GetOxyCont()*time; // fraction!
2222
2223 //-----------------------------------------------
2224 // Loop over electrons
2225 //-----------------------------------------------
cc80f89e 2226 Int_t index[3];
2227 index[1]=isec;
73042f01 2228 for(Int_t nel=0;nel<qI;nel++){
8c555625 2229 // skip if electron lost due to the attachment
73042f01 2230 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
94de3818 2231 xyz[0]=tpcHit->X();
2232 xyz[1]=tpcHit->Y();
1705494b 2233 xyz[2]=tpcHit->Z();
2234 //
2235 // protection for the nonphysical avalanche size (10**6 maximum)
2236 //
710dacf5 2237 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
2238 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
cc80f89e 2239 index[0]=1;
2240
2241 TransportElectron(xyz,index); //MI change -august
73042f01 2242 Int_t rowNumber;
cc80f89e 2243 fTPCParam->GetPadRow(xyz,index); //MI change august
73042f01 2244 rowNumber = index[2];
cc80f89e 2245 //transform position to local digit coordinates
2246 //relative to nearest pad row
73042f01 2247 if ((rowNumber<0)||rowNumber>=fTPCParam->GetNRow(isec)) continue;
2248 nofElectrons[rowNumber]++;
8c555625 2249 //----------------------------------
2250 // Expand vector if necessary
2251 //----------------------------------
73042f01 2252 if(nofElectrons[rowNumber]>120){
2253 Int_t range = tracks[rowNumber]->GetNrows();
2254 if((nofElectrons[rowNumber])>(range-1)/4){
cc80f89e 2255
73042f01 2256 tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
fe4da5cc 2257 }
2258 }
2259
de61d5d5 2260 AliTPCFastVector &v = *tracks[rowNumber];
73042f01 2261 Int_t idx = 4*nofElectrons[rowNumber]-3;
de61d5d5 2262 Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
2263 memcpy(position,xyz,4*sizeof(Float_t));
2264
8c555625 2265 } // end of loop over electrons
39c8eb58 2266
2267 tpcHit = (AliTPChit*)NextHit();
8c555625 2268
2269 } // end of loop over hits
2270 } // end of loop over tracks
2271
2272 //
2273 // store remaining track (the last one) if not empty
2274 //
2275
2276 for(i=0;i<nrows;i++){
73042f01 2277 if(nofElectrons[i]>0){
de61d5d5 2278 AliTPCFastVector &v = *tracks[i];
8c555625 2279 v(0) = previousTrack;
73042f01 2280 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2281 row[i]->Add(tracks[i]);
fe4da5cc 2282 }
2283 else{
cc80f89e 2284 delete tracks[i];
2285 tracks[i]=0;
8c555625 2286 }
2287 }
2288
cc80f89e 2289 delete [] tracks;
73042f01 2290 delete [] nofElectrons;
8c555625 2291
8c555625 2292
cc80f89e 2293} // end of MakeSector
8c555625 2294
fe4da5cc 2295
2296//_____________________________________________________________________________
2297void AliTPC::Init()
2298{
2299 //
2300 // Initialise TPC detector after definition of geometry
2301 //
2302 Int_t i;
2303 //
9e1a0ddb 2304 if(fDebug) {
2305 printf("\n%s: ",ClassName());
2306 for(i=0;i<35;i++) printf("*");
2307 printf(" TPC_INIT ");
2308 for(i=0;i<35;i++) printf("*");
2309 printf("\n%s: ",ClassName());
2310 //
2311 for(i=0;i<80;i++) printf("*");
2312 printf("\n");
2313 }
fe4da5cc 2314}
2315
2316//_____________________________________________________________________________
9e1a0ddb 2317void AliTPC::MakeBranch(Option_t* option, const char *file)
fe4da5cc 2318{
2319 //
2320 // Create Tree branches for the TPC.
2321 //
2322 Int_t buffersize = 4000;
2323 char branchname[10];
2324 sprintf(branchname,"%s",GetName());
2325
2ab0c725 2326 AliDetector::MakeBranch(option,file);
fe4da5cc 2327
5cf7bbad 2328 const char *d = strstr(option,"D");
fe4da5cc 2329
73042f01 2330 if (fDigits && gAlice->TreeD() && d) {
9e1a0ddb 2331 MakeBranchInTree(gAlice->TreeD(),
2332 branchname, &fDigits, buffersize, file);
fe4da5cc 2333 }
39c8eb58 2334
792bb11c 2335 if (fHitType>1) MakeBranch2(option,file); // MI change 14.09.2000
fe4da5cc 2336}
2337
2338//_____________________________________________________________________________
2339void AliTPC::ResetDigits()
2340{
2341 //
2342 // Reset number of digits and the digits array for this detector
fe4da5cc 2343 //
2344 fNdigits = 0;
cc80f89e 2345 if (fDigits) fDigits->Clear();
fe4da5cc 2346}
2347
2348//_____________________________________________________________________________
2349void AliTPC::SetSecAL(Int_t sec)
2350{
8c555625 2351 //---------------------------------------------------
fe4da5cc 2352 // Activate/deactivate selection for lower sectors
8c555625 2353 //---------------------------------------------------
2354
2355 //-----------------------------------------------------------------
2356 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2357 //-----------------------------------------------------------------
2358
fe4da5cc 2359 fSecAL = sec;
2360}
2361
2362//_____________________________________________________________________________
2363void AliTPC::SetSecAU(Int_t sec)
2364{
8c555625 2365 //----------------------------------------------------
fe4da5cc 2366 // Activate/deactivate selection for upper sectors
8c555625 2367 //---------------------------------------------------
2368
2369 //-----------------------------------------------------------------
2370 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2371 //-----------------------------------------------------------------
2372
fe4da5cc 2373 fSecAU = sec;
2374}
2375
2376//_____________________________________________________________________________
2377void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
2378{
8c555625 2379 //----------------------------------------
fe4da5cc 2380 // Select active lower sectors
8c555625 2381 //----------------------------------------
2382
2383 //-----------------------------------------------------------------
2384 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2385 //-----------------------------------------------------------------
2386
fe4da5cc 2387 fSecLows[0] = s1;
2388 fSecLows[1] = s2;
2389 fSecLows[2] = s3;
2390 fSecLows[3] = s4;
2391 fSecLows[4] = s5;
2392 fSecLows[5] = s6;
2393}
2394
2395//_____________________________________________________________________________
2396void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
2397 Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
2398 Int_t s11 , Int_t s12)
2399{
8c555625 2400 //--------------------------------
fe4da5cc 2401 // Select active upper sectors
8c555625 2402 //--------------------------------
2403
2404 //-----------------------------------------------------------------
2405 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2406 //-----------------------------------------------------------------
2407
fe4da5cc 2408 fSecUps[0] = s1;
2409 fSecUps[1] = s2;
2410 fSecUps[2] = s3;
2411 fSecUps[3] = s4;
2412 fSecUps[4] = s5;
2413 fSecUps[5] = s6;
2414 fSecUps[6] = s7;
2415 fSecUps[7] = s8;
2416 fSecUps[8] = s9;
2417 fSecUps[9] = s10;
2418 fSecUps[10] = s11;
2419 fSecUps[11] = s12;
2420}
2421
2422//_____________________________________________________________________________
2423void AliTPC::SetSens(Int_t sens)
2424{
8c555625 2425
2426 //-------------------------------------------------------------
2427 // Activates/deactivates the sensitive strips at the center of
2428 // the pad row -- this is for the space-point resolution calculations
2429 //-------------------------------------------------------------
2430
2431 //-----------------------------------------------------------------
2432 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2433 //-----------------------------------------------------------------
2434
fe4da5cc 2435 fSens = sens;
2436}
2b06d5c3 2437
4b0fdcad 2438
73042f01 2439void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2440{
73042f01 2441 // choice of the TPC side
2442
4b0fdcad 2443 fSide = side;
2444
2445}
1283eee5 2446//____________________________________________________________________________
2447void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
2448 Float_t p2,Float_t p3)
2449{
fe4da5cc 2450
73042f01 2451 // gax mixture definition
2452
1283eee5 2453 fNoComp = nc;
2454
2455 fMixtComp[0]=c1;
2456 fMixtComp[1]=c2;
2457 fMixtComp[2]=c3;
2458
2459 fMixtProp[0]=p1;
2460 fMixtProp[1]=p2;
2461 fMixtProp[2]=p3;
2462
2463
cc80f89e 2464}
2465//_____________________________________________________________________________
2466
2467void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2468{
2469 //
2470 // electron transport taking into account:
2471 // 1. diffusion,
2472 // 2.ExB at the wires
2473 // 3. nonisochronity
2474 //
2475 // xyz and index must be already transformed to system 1
2476 //
2477
2478 fTPCParam->Transform1to2(xyz,index);
2479
2480 //add diffusion
2481 Float_t driftl=xyz[2];
2482 if(driftl<0.01) driftl=0.01;
2483 driftl=TMath::Sqrt(driftl);
73042f01 2484 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2485 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2486 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2487 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2488 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2489
2490 // ExB
2491
2492 if (fTPCParam->GetMWPCReadout()==kTRUE){
2493 Float_t x1=xyz[0];
2494 fTPCParam->Transform2to2NearestWire(xyz,index);
2495 Float_t dx=xyz[0]-x1;
2496 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2497 }
2498 //add nonisochronity (not implemented yet)
2499
1283eee5 2500}
fe4da5cc 2501
fe4da5cc 2502ClassImp(AliTPCdigit)
2503
2504//_____________________________________________________________________________
2505AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
2506 AliDigit(tracks)
2507{
2508 //
2509 // Creates a TPC digit object
2510 //
2511 fSector = digits[0];
2512 fPadRow = digits[1];
2513 fPad = digits[2];
2514 fTime = digits[3];
2515 fSignal = digits[4];
2516}
2517
2518
2519ClassImp(AliTPChit)
2520
2521//_____________________________________________________________________________
2522AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2523AliHit(shunt,track)
2524{
2525 //
2526 // Creates a TPC hit object
2527 //
2528 fSector = vol[0];
2529 fPadRow = vol[1];
2530 fX = hits[0];
2531 fY = hits[1];
2532 fZ = hits[2];
2533 fQ = hits[3];
2534}
2535
8c555625 2536
39c8eb58 2537//________________________________________________________________________
792bb11c 2538// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2539
9e1a0ddb 2540void AliTPC::MakeBranch2(Option_t *option,const char *file)
39c8eb58 2541{
2542 //
2543 // Create a new branch in the current Root Tree
2544 // The branch of fHits is automatically split
2545 // MI change 14.09.2000
792bb11c 2546 if (fHitType<2) return;
39c8eb58 2547 char branchname[10];
2548 sprintf(branchname,"%s2",GetName());
2549 //
2550 // Get the pointer to the header
5cf7bbad 2551 const char *cH = strstr(option,"H");
39c8eb58 2552 //
792bb11c 2553 if (fTrackHits && gAlice->TreeH() && cH && fHitType&4) {
2554 // AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2555 // gAlice->TreeH(),fBufferSize,99);
2556 //TBranch * branch =
2557 gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2558 fBufferSize,99);
2559
2560 // gAlice->TreeH()->GetListOfBranches()->Add(branch);
9e1a0ddb 2561 if (GetDebug()>1)
2562 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2563 const char folder [] = "RunMC/Event/Data";
2564 if (GetDebug())
2565 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2566 Publish(folder,&fTrackHits,branchname);
2ab0c725 2567 if (file) {
2568 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2569 TDirectory *wd = gDirectory;
2570 b->SetFile(file);
2571 TIter next( b->GetListOfBranches());
2572 while ((b=(TBranch*)next())) {
9e1a0ddb 2573 b->SetFile(file);
2ab0c725 2574 }
2575 wd->cd();
9e1a0ddb 2576 if (GetDebug()>1)
2577 cout << "Diverting branch " << branchname << " to file " << file << endl;
2ab0c725 2578 }
39c8eb58 2579 }
792bb11c 2580
2581 if (fTrackHitsOld && gAlice->TreeH() && cH && fHitType&2) {
2582 AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
2583 gAlice->TreeH(),fBufferSize,99);
2584 //TBranch * branch = gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2585 // fBufferSize,99);
2586
2587 gAlice->TreeH()->GetListOfBranches()->Add(branch);
2588 if (GetDebug()>1)
2589 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2590 const char folder [] = "RunMC/Event/Data";
2591 if (GetDebug())
2592 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2593 Publish(folder,&fTrackHitsOld,branchname);
2594 if (file) {
2595 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2596 TDirectory *wd = gDirectory;
2597 b->SetFile(file);
2598 TIter next( b->GetListOfBranches());
2599 while ((b=(TBranch*)next())) {
2600 b->SetFile(file);
2601 }
2602 wd->cd();
2603 if (GetDebug()>1)
2604 cout << "Diverting branch " << branchname << " to file " << file << endl;
2605 }
2606 }
39c8eb58 2607}
2608
2609void AliTPC::SetTreeAddress()
2610{
792bb11c 2611 if (fHitType<=1) AliDetector::SetTreeAddress();
2612 if (fHitType>1) SetTreeAddress2();
39c8eb58 2613}
2614
2615void AliTPC::SetTreeAddress2()
2616{
2617 //
2618 // Set branch address for the TrackHits Tree
2619 //
2620 TBranch *branch;
2621 char branchname[20];
2622 sprintf(branchname,"%s2",GetName());
2623 //
2624 // Branch address for hit tree
2625 TTree *treeH = gAlice->TreeH();
792bb11c 2626 if ((treeH)&&(fHitType&4)) {
39c8eb58 2627 branch = treeH->GetBranch(branchname);
2628 if (branch) branch->SetAddress(&fTrackHits);
2629 }
792bb11c 2630 if ((treeH)&&(fHitType&2)) {
2631 branch = treeH->GetBranch(branchname);
2632 if (branch) branch->SetAddress(&fTrackHitsOld);
2633 }
2634
39c8eb58 2635}
2636
2637void AliTPC::FinishPrimary()
2638{
792bb11c 2639 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
2640 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2641}
2642
2643
2644void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2645{
2646 //
2647 // add hit to the list
39c8eb58 2648 Int_t rtrack;
2649 if (fIshunt) {
2650 int primary = gAlice->GetPrimary(track);
2ab0c725 2651 gAlice->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2652 rtrack=primary;
2653 } else {
2654 rtrack=track;
2655 gAlice->FlagTrack(track);
2656 }
2657 //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
2658 //if (hit->fTrack!=rtrack)
2659 // cout<<"bad track number\n";
792bb11c 2660 if (fTrackHits && fHitType&4)
39c8eb58 2661 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
2662 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2663 if (fTrackHitsOld &&fHitType&2 )
2664 fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
2665 hits[1],hits[2],(Int_t)hits[3]);
2666
39c8eb58 2667}
2668
2669void AliTPC::ResetHits()
2670{
2671 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2672 if (fHitType>1) ResetHits2();
39c8eb58 2673}
2674
2675void AliTPC::ResetHits2()
2676{
2677 //
2678 //reset hits
792bb11c 2679 if (fTrackHits && fHitType&4) fTrackHits->Clear();
2680 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
2681
39c8eb58 2682}
2683
2684AliHit* AliTPC::FirstHit(Int_t track)
2685{
792bb11c 2686 if (fHitType>1) return FirstHit2(track);
39c8eb58 2687 return AliDetector::FirstHit(track);
2688}
2689AliHit* AliTPC::NextHit()
2690{
792bb11c 2691 if (fHitType>1) return NextHit2();
2692
39c8eb58 2693 return AliDetector::NextHit();
2694}
2695
2696AliHit* AliTPC::FirstHit2(Int_t track)
2697{
2698 //
2699 // Initialise the hit iterator
2700 // Return the address of the first hit for track
2701 // If track>=0 the track is read from disk
2702 // while if track<0 the first hit of the current
2703 // track is returned
2704 //
2705 if(track>=0) {
2706 gAlice->ResetHits();
2707 gAlice->TreeH()->GetEvent(track);
2708 }
2709 //
792bb11c 2710 if (fTrackHits && fHitType&4) {
39c8eb58 2711 fTrackHits->First();
2712 return fTrackHits->GetHit();
2713 }
792bb11c 2714 if (fTrackHitsOld && fHitType&2) {
2715 fTrackHitsOld->First();
2716 return fTrackHitsOld->GetHit();
2717 }
2718
39c8eb58 2719 else return 0;
2720}
2721
2722AliHit* AliTPC::NextHit2()
2723{
2724 //
2725 //Return the next hit for the current track
2726
792bb11c 2727
2728 if (fTrackHitsOld && fHitType&2) {
2729 fTrackHitsOld->Next();
2730 return fTrackHitsOld->GetHit();
2731 }
39c8eb58 2732 if (fTrackHits) {
2733 fTrackHits->Next();
2734 return fTrackHits->GetHit();
2735 }
2736 else
2737 return 0;
2738}
2739
2740void AliTPC::LoadPoints(Int_t)
2741{
2742 //
2743 Int_t a = 0;
f2e8b846 2744 /* if(fHitType==1) return AliDetector::LoadPoints(a);
39c8eb58 2745 LoadPoints2(a);
f2e8b846 2746 */
2747 if(fHitType==1) AliDetector::LoadPoints(a);
2748 else LoadPoints2(a);
2749
39c8eb58 2750 // LoadPoints3(a);
2751
2752}
2753
2754
2755void AliTPC::RemapTrackHitIDs(Int_t *map)
2756{
2757 if (!fTrackHits) return;
39c8eb58 2758
792bb11c 2759 if (fTrackHitsOld && fHitType&2){
2760 AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2761 for (UInt_t i=0;i<arr->GetSize();i++){
2762 AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2763 info->fTrackID = map[info->fTrackID];
2764 }
2765 }
2766 if (fTrackHitsOld && fHitType&4){
2767 TClonesArray * arr = fTrackHits->GetArray();;
2768 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2769 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2770 info->fTrackID = map[info->fTrackID];
2771 }
2772 }
39c8eb58 2773}
2774
792bb11c 2775Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2776{
2777 //return bool information - is track in given volume
2778 //load only part of the track information
2779 //return true if current track is in volume
2780 //
2781 // return kTRUE;
2782 if (fTrackHitsOld && fHitType&2) {
2783 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
2784 br->GetEvent(track);
2785 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2786 for (UInt_t j=0;j<ar->GetSize();j++){
2787 if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2788 }
2789 }
2790
2791 if (fTrackHits && fHitType&4) {
2792 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
2793 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
2794 br2->GetEvent(track);
2795 br1->GetEvent(track);
2796 Int_t *volumes = fTrackHits->GetVolumes();
2797 Int_t nvolumes = fTrackHits->GetNVolumes();
2798 if (!volumes && nvolumes>0) {
2799 printf("Problematic track\t%d\t%d",track,nvolumes);
2800 return kFALSE;
2801 }
2802 for (Int_t j=0;j<nvolumes; j++)
2803 if (volumes[j]==id) return kTRUE;
2804 }
2805
2806 if (fHitType&1) {
2807 TBranch * br = gAlice->TreeH()->GetBranch("fSector");
2808 br->GetEvent(track);
2809 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2810 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2811 }
2812 }
2813 return kFALSE;
2814
2815}
39c8eb58 2816
2817//_____________________________________________________________________________
2818void AliTPC::LoadPoints2(Int_t)
2819{
2820 //
2821 // Store x, y, z of all hits in memory
2822 //
792bb11c 2823 if (fTrackHits == 0 && fTrackHitsOld==0) return;
39c8eb58 2824 //
792bb11c 2825 Int_t nhits =0;
2826 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
2827 if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
2828
39c8eb58 2829 if (nhits == 0) return;
2830 Int_t tracks = gAlice->GetNtrack();
2831 if (fPoints == 0) fPoints = new TObjArray(tracks);
2832 AliHit *ahit;
2833 //
2834 Int_t *ntrk=new Int_t[tracks];
2835 Int_t *limi=new Int_t[tracks];
2836 Float_t **coor=new Float_t*[tracks];
2837 for(Int_t i=0;i<tracks;i++) {
2838 ntrk[i]=0;
2839 coor[i]=0;
2840 limi[i]=0;
2841 }
2842 //
2843 AliPoints *points = 0;
2844 Float_t *fp=0;
2845 Int_t trk;
2846 Int_t chunk=nhits/4+1;
2847 //
2848 // Loop over all the hits and store their position
2849 //
2850 ahit = FirstHit2(-1);
39c8eb58 2851 while (ahit){
39c8eb58 2852 trk=ahit->GetTrack();
2853 if(ntrk[trk]==limi[trk]) {
2854 //
2855 // Initialise a new track
2856 fp=new Float_t[3*(limi[trk]+chunk)];
2857 if(coor[trk]) {
2858 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2859 delete [] coor[trk];
2860 }
2861 limi[trk]+=chunk;
2862 coor[trk] = fp;
2863 } else {
2864 fp = coor[trk];
2865 }
2866 fp[3*ntrk[trk] ] = ahit->X();
2867 fp[3*ntrk[trk]+1] = ahit->Y();
2868 fp[3*ntrk[trk]+2] = ahit->Z();
2869 ntrk[trk]++;
2870 ahit = NextHit2();
2871 }
792bb11c 2872
2873
2874
39c8eb58 2875 //
2876 for(trk=0; trk<tracks; ++trk) {
2877 if(ntrk[trk]) {
2878 points = new AliPoints();
2879 points->SetMarkerColor(GetMarkerColor());
2880 points->SetMarkerSize(GetMarkerSize());
2881 points->SetDetector(this);
2882 points->SetParticle(trk);
2883 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
2884 fPoints->AddAt(points,trk);
2885 delete [] coor[trk];
2886 coor[trk]=0;
2887 }
2888 }
2889 delete [] coor;
2890 delete [] ntrk;
2891 delete [] limi;
2892}
2893
2894
2895//_____________________________________________________________________________
2896void AliTPC::LoadPoints3(Int_t)
2897{
2898 //
2899 // Store x, y, z of all hits in memory
2900 // - only intersection point with pad row
2901 if (fTrackHits == 0) return;
2902 //
2903 Int_t nhits = fTrackHits->GetEntriesFast();
2904 if (nhits == 0) return;
2905 Int_t tracks = gAlice->GetNtrack();
2906 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
2907 fPoints->Expand(2*tracks);
2908 AliHit *ahit;
2909 //
2910 Int_t *ntrk=new Int_t[tracks];
2911 Int_t *limi=new Int_t[tracks];
2912 Float_t **coor=new Float_t*[tracks];
2913 for(Int_t i=0;i<tracks;i++) {
2914 ntrk[i]=0;
2915 coor[i]=0;
2916 limi[i]=0;
2917 }
2918 //
2919 AliPoints *points = 0;
2920 Float_t *fp=0;
2921 Int_t trk;
2922 Int_t chunk=nhits/4+1;
2923 //
2924 // Loop over all the hits and store their position
2925 //
2926 ahit = FirstHit2(-1);
2927 //for (Int_t hit=0;hit<nhits;hit++) {
2928
2929 Int_t lastrow = -1;
2930 while (ahit){
2931 // ahit = (AliHit*)fHits->UncheckedAt(hit);
2932 trk=ahit->GetTrack();
2933 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
2934 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
2935 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2936 if (currentrow!=lastrow){
2937 lastrow = currentrow;
2938 //later calculate intersection point
2939 if(ntrk[trk]==limi[trk]) {
2940 //
2941 // Initialise a new track
2942 fp=new Float_t[3*(limi[trk]+chunk)];
2943 if(coor[trk]) {
2944 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2945 delete [] coor[trk];
2946 }
2947 limi[trk]+=chunk;
2948 coor[trk] = fp;
2949 } else {
2950 fp = coor[trk];
2951 }
2952 fp[3*ntrk[trk] ] = ahit->X();
2953 fp[3*ntrk[trk]+1] = ahit->Y();
2954 fp[3*ntrk[trk]+2] = ahit->Z();
2955 ntrk[trk]++;
2956 }
2957 ahit = NextHit2();
2958 }
2959
2960 //
2961 for(trk=0; trk<tracks; ++trk) {
2962 if(ntrk[trk]) {
2963 points = new AliPoints();
2964 points->SetMarkerColor(GetMarkerColor()+1);
2965 points->SetMarkerStyle(5);
2966 points->SetMarkerSize(0.2);
2967 points->SetDetector(this);
2968 points->SetParticle(trk);
2969 // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
2970 points->SetPolyMarker(ntrk[trk],coor[trk],30);
2971 fPoints->AddAt(points,tracks+trk);
2972 delete [] coor[trk];
2973 coor[trk]=0;
2974 }
2975 }
2976 delete [] coor;
2977 delete [] ntrk;
2978 delete [] limi;
2979}
2980
2981
2982
2983void AliTPC::FindTrackHitsIntersection(TClonesArray * arr)
2984{
2985
2986 //
2987 //fill clones array with intersection of current point with the
2988 //middle of the row
2989 Int_t sector;
2990 Int_t ipart;
2991
2992 const Int_t kcmaxhits=30000;
de61d5d5 2993 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
2994 AliTPCFastVector & xxx = *xxxx;
39c8eb58 2995 Int_t maxhits = kcmaxhits;
2996
2997 //
2998 AliTPChit * tpcHit=0;
2999 tpcHit = (AliTPChit*)FirstHit2(-1);
3000 Int_t currentIndex=0;
3001 Int_t lastrow=-1; //last writen row
3002
3003 while (tpcHit){
3004 if (tpcHit==0) continue;
3005 sector=tpcHit->fSector; // sector number
3006 ipart=tpcHit->Track();
3007
3008 //find row number
3009
3010 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
3011 Int_t index[3]={1,sector,0};
3012 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
3013 if (currentrow<0) continue;
3014 if (lastrow<0) lastrow=currentrow;
3015 if (currentrow==lastrow){
3016 if ( currentIndex>=maxhits){
3017 maxhits+=kcmaxhits;
3018 xxx.ResizeTo(4*maxhits);
3019 }
3020 xxx(currentIndex*4)=x[0];
3021 xxx(currentIndex*4+1)=x[1];
3022 xxx(currentIndex*4+2)=x[2];
3023 xxx(currentIndex*4+3)=tpcHit->fQ;
3024 currentIndex++;
3025 }
3026 else
3027 if (currentIndex>2){
3028 Float_t sumx=0;
3029 Float_t sumx2=0;
3030 Float_t sumx3=0;
3031 Float_t sumx4=0;
3032 Float_t sumy=0;
3033 Float_t sumxy=0;
3034 Float_t sumx2y=0;
3035 Float_t sumz=0;
3036 Float_t sumxz=0;
3037 Float_t sumx2z=0;
3038 Float_t sumq=0;
3039 for (Int_t index=0;index<currentIndex;index++){
3040 Float_t x,x2,x3,x4;
3041 x=x2=x3=x4=xxx(index*4);
3042 x2*=x;
3043 x3*=x2;
3044 x4*=x3;
3045 sumx+=x;
3046 sumx2+=x2;
3047 sumx3+=x3;
3048 sumx4+=x4;
3049 sumy+=xxx(index*4+1);
3050 sumxy+=xxx(index*4+1)*x;
3051 sumx2y+=xxx(index*4+1)*x2;
3052 sumz+=xxx(index*4+2);
3053 sumxz+=xxx(index*4+2)*x;
3054 sumx2z+=xxx(index*4+2)*x2;
3055 sumq+=xxx(index*4+3);
3056 }
3057 Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2;
3058 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
3059 sumx2*(sumx*sumx3-sumx2*sumx2);
3060
3061 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
3062 sumx2*(sumxy*sumx3-sumx2y*sumx2);
3063 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
3064 sumx2*(sumxz*sumx3-sumx2z*sumx2);
3065
3066 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
3067 sumx2*(sumx*sumx2y-sumx2*sumxy);
3068 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
3069 sumx2*(sumx*sumx2z-sumx2*sumxz);
3070
3071 Float_t y=detay/det+centralPad;
3072 Float_t z=detaz/det;
3073 Float_t by=detby/det; //y angle
3074 Float_t bz=detbz/det; //z angle
3075 sumy/=Float_t(currentIndex);
3076 sumz/=Float_t(currentIndex);
3077
3078 AliComplexCluster cl;
3079 cl.fX=z;
3080 cl.fY=y;
3081 cl.fQ=sumq;
3082 cl.fSigmaX2=bz;
3083 cl.fSigmaY2=by;
3084 cl.fTracks[0]=ipart;
3085
3086 AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
3087 if (row!=0) row->InsertCluster(&cl);
3088 currentIndex=0;
3089 lastrow=currentrow;
3090 } //end of calculating cluster for given row
3091
3092 } // end of loop over hits
3093 xxxx->Delete();
39c8eb58 3094
3095}
afc42102 3096//_______________________________________________________________________________
a62d28a2 3097void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
afc42102 3098{
a62d28a2 3099 // produces rec points from digits and writes them on the root file
3100 // AliTPCclusters.root
3101
3102 TDirectory *cwd = gDirectory;
3103
3104
3105 AliTPCParam *dig=(AliTPCParam *)gDirectory->Get("75x40_100x60");
3106 SetParam(dig);
3107 cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
3108 TFile *out;
3109 if(!gSystem->Getenv("CONFIG_FILE")){
3110 out=TFile::Open("AliTPCclusters.root","recreate");
3111 }
3112 else {
3113 const char *tmp1;
3114 const char *tmp2;
3115 char tmp3[80];
3116 tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
3117 tmp2=gSystem->Getenv("CONFIG_OUTDIR");
3118 sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
3119 out=TFile::Open(tmp3,"recreate");
3120 }
3121
3122 TStopwatch timer;
3123 cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
3124 timer.Start();
3125 cwd->cd();
3126 for(Int_t iev=firstevent;iev<lastevent+1;iev++){
3127
3128 printf("Processing event %d\n",iev);
3129 Digits2Clusters(out,iev);
3130 }
3131 cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
3132 timer.Stop();
3133 timer.Print();
3134 out->Close();
3135 cwd->cd();
3136
3137
afc42102 3138}