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Made a new abstract base class; AliL3HoughBaseTransformer for different implementations
[u/mrichter/AliRoot.git] / TPC / AliTPC.cxx
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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$Log$
12d8d654 18Revision 1.55 2002/03/29 06:57:45 kowal2
19Restored backward compatibility to use the hits from Dec. 2000 production.
20
7a09f434 21Revision 1.54 2002/03/18 17:59:13 kowal2
22Chnges in the pad geometry - 3 pad lengths introduced.
23
f03e3423 24Revision 1.53 2002/02/25 11:02:56 kowal2
25Changes towards speeding up the code. Thanks to Marian Ivanov.
26
de61d5d5 27Revision 1.52 2002/02/18 09:26:09 kowal2
28Removed compiler warning
29
43510af3 30Revision 1.51 2002/01/21 17:13:21 kowal2
31New track hits using root containers. Setting active sectors added.
32
792bb11c 33Revision 1.50 2001/12/06 14:16:19 kowal2
34meaningfull printouts
35
0a9b058d 36Revision 1.49 2001/11/30 11:55:37 hristov
37Noise table created in Hits2SDigits (M.Ivanov)
38
180f4872 39Revision 1.48 2001/11/24 16:10:21 kowal2
40Faster algorithms.
41
407ff276 42Revision 1.47 2001/11/19 10:25:34 kowal2
43Nearest integer instead of integer when converting to ADC counts
44
68771f83 45Revision 1.46 2001/11/07 06:47:12 kowal2
46Removed printouts
47
9fe90376 48Revision 1.45 2001/11/03 13:33:48 kowal2
49Updated algorithms in Hits2SDigits, SDigits2Digits,
50Hits2ExactClusters.
51Added method Merge
52
5f16d237 53Revision 1.44 2001/08/30 09:28:48 hristov
54TTree names are explicitly set via SetName(name) and then Write() is called
55
6bc3458d 56Revision 1.43 2001/07/28 12:02:54 hristov
57Branch split level set to 99
58
8f90302f 59Revision 1.42 2001/07/28 11:38:52 hristov
60Loop variable declared once
61
43272665 62Revision 1.41 2001/07/28 10:53:50 hristov
63Digitisation done according to the general scheme (M.Ivanov)
64
0a61bf9d 65Revision 1.40 2001/07/27 13:03:14 hristov
66Default Branch split level set to 99
67
d0f40f23 68Revision 1.39 2001/07/26 09:09:34 kowal2
69Hits2Reco method added
70
a62d28a2 71Revision 1.38 2001/07/20 14:32:43 kowal2
72Processing of many events possible now
73
afc42102 74Revision 1.37 2001/06/12 07:17:18 kowal2
75Hits2SDigits method implemented (summable digits)
76
f8cf550c 77Revision 1.36 2001/05/16 14:57:25 alibrary
78New files for folders and Stack
79
9e1a0ddb 80Revision 1.35 2001/05/08 16:02:22 kowal2
81Updated material specifications
82
ba1d05f9 83Revision 1.34 2001/05/08 15:00:15 hristov
84Corrections for tracking in arbitrary magnenetic field. Changes towards a concept of global Alice track. Back propagation of reconstructed tracks (Yu.Belikov)
85
b9de75e1 86Revision 1.33 2001/04/03 12:40:43 kowal2
87Removed printouts
88
5a28a08f 89Revision 1.32 2001/03/12 17:47:36 hristov
90Changes needed on Sun with CC 5.0
91
5cf7bbad 92Revision 1.31 2001/03/12 08:21:50 kowal2
93Corrected C++ bug in the material definitions
94
9a3667bd 95Revision 1.30 2001/03/01 17:34:47 kowal2
96Correction due to the accuracy problem
97
710dacf5 98Revision 1.29 2001/02/28 16:34:40 kowal2
99Protection against nonphysical values of the avalanche size,
10010**6 is the maximum
101
1705494b 102Revision 1.28 2001/01/26 19:57:19 hristov
103Major upgrade of AliRoot code
104
2ab0c725 105Revision 1.27 2001/01/13 17:29:33 kowal2
106Sun compiler correction
107
f2e8b846 108Revision 1.26 2001/01/10 07:59:43 kowal2
109Corrections to load points from the noncompressed hits.
110
53048f2e 111Revision 1.25 2000/11/02 07:25:31 kowal2
112Changes due to the new hit structure.
113Memory leak removed.
114
39c8eb58 115Revision 1.24 2000/10/05 16:06:09 kowal2
116Forward declarations. Changes due to a new class AliComplexCluster.
117
2b06d5c3 118Revision 1.23 2000/10/02 21:28:18 fca
119Removal of useless dependecies via forward declarations
120
94de3818 121Revision 1.22 2000/07/10 20:57:39 hristov
122Update of TPC code and macros by M.Kowalski
123
73042f01 124Revision 1.19.2.4 2000/06/26 07:39:42 kowal2
125Changes to obey the coding rules
126
127Revision 1.19.2.3 2000/06/25 08:38:41 kowal2
128Splitted from AliTPCtracking
129
130Revision 1.19.2.2 2000/06/16 12:59:28 kowal2
131Changed parameter settings
132
133Revision 1.19.2.1 2000/06/09 07:15:07 kowal2
134
135Defaults loaded automatically (hard-wired)
136Optional parameters can be set via macro called in the constructor
137
138Revision 1.19 2000/04/18 19:00:59 fca
139Small bug fixes to TPC files
140
4d68a14a 141Revision 1.18 2000/04/17 09:37:33 kowal2
142removed obsolete AliTPCDigitsDisplay.C
143
cc80f89e 144Revision 1.17.2.2 2000/04/10 08:15:12 kowal2
145
146New, experimental data structure from M. Ivanov
147New tracking algorithm
148Different pad geometry for different sectors
149Digitization rewritten
150
151Revision 1.17.2.1 2000/04/10 07:56:53 kowal2
152Not used anymore - removed
153
154Revision 1.17 2000/01/19 17:17:30 fca
155Introducing a list of lists of hits -- more hits allowed for detector now
156
1cedd08a 157Revision 1.16 1999/11/05 09:29:23 fca
158Accept only signals > 0
159
921bf71a 160Revision 1.15 1999/10/08 06:26:53 fca
161Removed ClustersIndex - not used anymore
162
e674b993 163Revision 1.14 1999/09/29 09:24:33 fca
164Introduction of the Copyright and cvs Log
165
4c039060 166*/
167
fe4da5cc 168///////////////////////////////////////////////////////////////////////////////
169// //
170// Time Projection Chamber //
171// This class contains the basic functions for the Time Projection Chamber //
172// detector. Functions specific to one particular geometry are //
173// contained in the derived classes //
174// //
175//Begin_Html
176/*
1439f98e 177<img src="picts/AliTPCClass.gif">
fe4da5cc 178*/
179//End_Html
180// //
8c555625 181// //
fe4da5cc 182///////////////////////////////////////////////////////////////////////////////
183
73042f01 184//
185
fe4da5cc 186#include <TMath.h>
187#include <TRandom.h>
188#include <TVector.h>
8c555625 189#include <TMatrix.h>
fe4da5cc 190#include <TGeometry.h>
191#include <TNode.h>
192#include <TTUBS.h>
193#include <TObjectTable.h>
1578254f 194#include "TParticle.h"
fe4da5cc 195#include "AliTPC.h"
afc42102 196#include <TFile.h>
197#include <TROOT.h>
198#include <TSystem.h>
fe4da5cc 199#include "AliRun.h"
200#include <iostream.h>
2ab0c725 201#include <stdlib.h>
fe4da5cc 202#include <fstream.h>
203#include "AliMC.h"
94de3818 204#include "AliMagF.h"
fe4da5cc 205
cc80f89e 206
73042f01 207#include "AliTPCParamSR.h"
8c555625 208#include "AliTPCPRF2D.h"
209#include "AliTPCRF1D.h"
cc80f89e 210#include "AliDigits.h"
211#include "AliSimDigits.h"
39c8eb58 212#include "AliTPCTrackHits.h"
792bb11c 213#include "AliTPCTrackHitsV2.h"
39c8eb58 214#include "AliPoints.h"
215#include "AliArrayBranch.h"
216
cc80f89e 217
218#include "AliTPCDigitsArray.h"
2b06d5c3 219#include "AliComplexCluster.h"
cc80f89e 220#include "AliClusters.h"
221#include "AliTPCClustersRow.h"
222#include "AliTPCClustersArray.h"
8c555625 223
73042f01 224#include "AliTPCcluster.h"
225#include "AliTPCclusterer.h"
226#include "AliTPCtracker.h"
8c555625 227
73042f01 228#include <TInterpreter.h>
2b06d5c3 229#include <TTree.h>
1283eee5 230
39c8eb58 231
232
fe4da5cc 233ClassImp(AliTPC)
234
de61d5d5 235//_____________________________________________________________________________
236// helper class for fast matrix and vector manipulation - no range checking
237// origin - Marian Ivanov
238
239class AliTPCFastMatrix : public TMatrix {
240public :
241 AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb);
242 inline Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
243 inline Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
244};
245
246AliTPCFastMatrix::AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb):
247 TMatrix(row_lwb, row_upb,col_lwb,col_upb)
248 {
249 };
250//_____________________________________________________________________________
251class AliTPCFastVector : public TVector {
252public :
253 AliTPCFastVector(Int_t size);
254 inline Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
255};
256
257AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
258};
259
fe4da5cc 260//_____________________________________________________________________________
261AliTPC::AliTPC()
262{
263 //
264 // Default constructor
265 //
266 fIshunt = 0;
fe4da5cc 267 fHits = 0;
268 fDigits = 0;
fe4da5cc 269 fNsectors = 0;
cc80f89e 270 fDigitsArray = 0;
271 fClustersArray = 0;
afc42102 272 fDefaults = 0;
792bb11c 273 fTrackHits = 0;
274 fTrackHitsOld = 0;
275 fHitType = 4; //default CONTAINERS - based on ROOT structure
407ff276 276 fTPCParam = 0;
277 fNoiseTable = 0;
792bb11c 278 fActiveSectors =0;
407ff276 279
fe4da5cc 280}
281
282//_____________________________________________________________________________
283AliTPC::AliTPC(const char *name, const char *title)
284 : AliDetector(name,title)
285{
286 //
287 // Standard constructor
288 //
289
290 //
291 // Initialise arrays of hits and digits
292 fHits = new TClonesArray("AliTPChit", 176);
792bb11c 293 gAlice->AddHitList(fHits);
cc80f89e 294 fDigitsArray = 0;
295 fClustersArray= 0;
afc42102 296 fDefaults = 0;
fe4da5cc 297 //
792bb11c 298 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 299 fTrackHits->SetHitPrecision(0.002);
300 fTrackHits->SetStepPrecision(0.003);
792bb11c 301 fTrackHits->SetMaxDistance(100);
302
303 fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
304 fTrackHitsOld->SetHitPrecision(0.002);
305 fTrackHitsOld->SetStepPrecision(0.003);
306 fTrackHitsOld->SetMaxDistance(100);
307
407ff276 308 fNoiseTable =0;
39c8eb58 309
792bb11c 310 fHitType = 4;
311 fActiveSectors = 0;
39c8eb58 312 //
fe4da5cc 313 // Initialise counters
cc80f89e 314 fNsectors = 0;
cc80f89e 315
fe4da5cc 316 //
317 fIshunt = 0;
318 //
319 // Initialise color attributes
320 SetMarkerColor(kYellow);
73042f01 321
322 //
323 // Set TPC parameters
324 //
325
afc42102 326
327 if (!strcmp(title,"Default")) {
328 fTPCParam = new AliTPCParamSR;
73042f01 329 } else {
330 cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
331 fTPCParam=0;
332 }
333
fe4da5cc 334}
335
336//_____________________________________________________________________________
337AliTPC::~AliTPC()
338{
339 //
340 // TPC destructor
341 //
73042f01 342
fe4da5cc 343 fIshunt = 0;
344 delete fHits;
345 delete fDigits;
73042f01 346 delete fTPCParam;
39c8eb58 347 delete fTrackHits; //MI 15.09.2000
792bb11c 348 delete fTrackHitsOld; //MI 10.12.2001
407ff276 349 if (fNoiseTable) delete [] fNoiseTable;
350
fe4da5cc 351}
352
fe4da5cc 353//_____________________________________________________________________________
354void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
355{
356 //
357 // Add a hit to the list
358 //
39c8eb58 359 // TClonesArray &lhits = *fHits;
360 // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
361 if (fHitType&1){
362 TClonesArray &lhits = *fHits;
363 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
364 }
792bb11c 365 if (fHitType>1)
39c8eb58 366 AddHit2(track,vol,hits);
fe4da5cc 367}
368
fe4da5cc 369//_____________________________________________________________________________
370void AliTPC::BuildGeometry()
371{
cc80f89e 372
fe4da5cc 373 //
374 // Build TPC ROOT TNode geometry for the event display
375 //
73042f01 376 TNode *nNode, *nTop;
fe4da5cc 377 TTUBS *tubs;
378 Int_t i;
379 const int kColorTPC=19;
1283eee5 380 char name[5], title[25];
fe4da5cc 381 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 382 const Double_t kRaddeg=180./TMath::Pi();
383
1283eee5 384
73042f01 385 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
386 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 387
73042f01 388 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
389 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 390
391 Int_t nLo = fTPCParam->GetNInnerSector()/2;
392 Int_t nHi = fTPCParam->GetNOuterSector()/2;
393
73042f01 394 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
395 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
396 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
397 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 398
399
73042f01 400 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
401 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 402
403 Double_t rl,ru;
404
405
fe4da5cc 406 //
407 // Get ALICE top node
fe4da5cc 408 //
1283eee5 409
73042f01 410 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 411
412 // inner sectors
413
cc80f89e 414 rl = fTPCParam->GetInnerRadiusLow();
415 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 416
417
fe4da5cc 418 for(i=0;i<nLo;i++) {
419 sprintf(name,"LS%2.2d",i);
1283eee5 420 name[4]='\0';
421 sprintf(title,"TPC low sector %3d",i);
422 title[24]='\0';
423
73042f01 424 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
425 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 426 tubs->SetNumberOfDivisions(1);
73042f01 427 nTop->cd();
428 nNode = new TNode(name,title,name,0,0,0,"");
429 nNode->SetLineColor(kColorTPC);
430 fNodes->Add(nNode);
fe4da5cc 431 }
1283eee5 432
fe4da5cc 433 // Outer sectors
1283eee5 434
cc80f89e 435 rl = fTPCParam->GetOuterRadiusLow();
436 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 437
fe4da5cc 438 for(i=0;i<nHi;i++) {
439 sprintf(name,"US%2.2d",i);
1283eee5 440 name[4]='\0';
fe4da5cc 441 sprintf(title,"TPC upper sector %d",i);
1283eee5 442 title[24]='\0';
73042f01 443 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
444 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 445 tubs->SetNumberOfDivisions(1);
73042f01 446 nTop->cd();
447 nNode = new TNode(name,title,name,0,0,0,"");
448 nNode->SetLineColor(kColorTPC);
449 fNodes->Add(nNode);
fe4da5cc 450 }
cc80f89e 451
73042f01 452}
1283eee5 453
fe4da5cc 454//_____________________________________________________________________________
455Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t )
456{
457 //
458 // Calculate distance from TPC to mouse on the display
459 // Dummy procedure
460 //
461 return 9999;
462}
463
73042f01 464void AliTPC::Clusters2Tracks(TFile *of) {
3c0f9266 465 //-----------------------------------------------------------------
466 // This is a track finder.
3c0f9266 467 //-----------------------------------------------------------------
b9de75e1 468 AliTPCtracker tracker(fTPCParam);
469 tracker.Clusters2Tracks(gFile,of);
fe4da5cc 470}
471
472//_____________________________________________________________________________
473void AliTPC::CreateMaterials()
474{
8c555625 475 //-----------------------------------------------
37831078 476 // Create Materials for for TPC simulations
8c555625 477 //-----------------------------------------------
478
479 //-----------------------------------------------------------------
480 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
481 //-----------------------------------------------------------------
1283eee5 482
73042f01 483 Int_t iSXFLD=gAlice->Field()->Integ();
484 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 485
486 Float_t amat[5]; // atomic numbers
487 Float_t zmat[5]; // z
488 Float_t wmat[5]; // proportions
489
490 Float_t density;
37831078 491 Float_t apure[2];
1283eee5 492
1283eee5 493
37831078 494 //***************** Gases *************************
495
496 //-------------------------------------------------
1283eee5 497 // pure gases
37831078 498 //-------------------------------------------------
1283eee5 499
37831078 500 // Neon
1283eee5 501
502
37831078 503 amat[0]= 20.18;
504 zmat[0]= 10.;
1283eee5 505 density = 0.0009;
37831078 506
507 apure[0]=amat[0];
1283eee5 508
37831078 509 AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
1283eee5 510
37831078 511 // Argon
1283eee5 512
37831078 513 amat[0]= 39.948;
514 zmat[0]= 18.;
515 density = 0.001782;
1283eee5 516
37831078 517 apure[1]=amat[0];
1283eee5 518
37831078 519 AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
520
1283eee5 521
522 //--------------------------------------------------------------
523 // gases - compounds
524 //--------------------------------------------------------------
525
526 Float_t amol[3];
527
37831078 528 // CO2
1283eee5 529
530 amat[0]=12.011;
531 amat[1]=15.9994;
532
533 zmat[0]=6.;
534 zmat[1]=8.;
535
536 wmat[0]=1.;
537 wmat[1]=2.;
538
539 density=0.001977;
540
541 amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
542
543 AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
37831078 544
1283eee5 545 // CF4
546
547 amat[0]=12.011;
548 amat[1]=18.998;
549
550 zmat[0]=6.;
551 zmat[1]=9.;
552
553 wmat[0]=1.;
554 wmat[1]=4.;
555
556 density=0.003034;
557
558 amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
559
560 AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
561
37831078 562
1283eee5 563 // CH4
564
565 amat[0]=12.011;
566 amat[1]=1.;
567
568 zmat[0]=6.;
569 zmat[1]=1.;
570
571 wmat[0]=1.;
572 wmat[1]=4.;
573
574 density=0.000717;
575
576 amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
577
578 AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
579
580 //----------------------------------------------------------------
581 // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
582 //----------------------------------------------------------------
37831078 583
584 char namate[21];
1283eee5 585 density = 0.;
586 Float_t am=0;
587 Int_t nc;
37831078 588 Float_t rho,absl,X0,buf[1];
1283eee5 589 Int_t nbuf;
37831078 590 Float_t a,z;
1283eee5 591
592 for(nc = 0;nc<fNoComp;nc++)
593 {
594
595 // retrive material constants
596
37831078 597 gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf);
1283eee5 598
599 amat[nc] = a;
600 zmat[nc] = z;
601
602 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
603
37831078 604 am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
1283eee5 605 density += fMixtProp[nc]*rho; // density of the mixture
606
607 }
608
609 // mixture proportions by weight!
610
611 for(nc = 0;nc<fNoComp;nc++)
612 {
613
614 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
615
37831078 616 wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
617 apure[nnc] : amol[nnc])/am;
618
619 }
620
621 // Drift gases 1 - nonsensitive, 2 - sensitive
1283eee5 622
1283eee5 623 AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
624 AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
1283eee5 625
1283eee5 626
37831078 627 // Air
628
629 amat[0] = 14.61;
630 zmat[0] = 7.3;
631 density = 0.001205;
1283eee5 632
37831078 633 AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
1283eee5 634
1283eee5 635
636 //----------------------------------------------------------------------
637 // solid materials
638 //----------------------------------------------------------------------
639
1283eee5 640
37831078 641 // Kevlar C14H22O2N2
1283eee5 642
37831078 643 amat[0] = 12.011;
644 amat[1] = 1.;
645 amat[2] = 15.999;
646 amat[3] = 14.006;
1283eee5 647
37831078 648 zmat[0] = 6.;
649 zmat[1] = 1.;
650 zmat[2] = 8.;
651 zmat[3] = 7.;
652
653 wmat[0] = 14.;
654 wmat[1] = 22.;
655 wmat[2] = 2.;
656 wmat[3] = 2.;
657
658 density = 1.45;
659
660 AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
661
662 // NOMEX
1283eee5 663
37831078 664 amat[0] = 12.011;
665 amat[1] = 1.;
666 amat[2] = 15.999;
667 amat[3] = 14.006;
668
669 zmat[0] = 6.;
670 zmat[1] = 1.;
671 zmat[2] = 8.;
672 zmat[3] = 7.;
673
674 wmat[0] = 14.;
675 wmat[1] = 22.;
676 wmat[2] = 2.;
677 wmat[3] = 2.;
678
679 density = 0.03;
1283eee5 680
fe4da5cc 681
37831078 682 AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
683
684 // Makrolon C16H18O3
685
686 amat[0] = 12.011;
687 amat[1] = 1.;
688 amat[2] = 15.999;
1283eee5 689
37831078 690 zmat[0] = 6.;
691 zmat[1] = 1.;
692 zmat[2] = 8.;
693
694 wmat[0] = 16.;
695 wmat[1] = 18.;
696 wmat[2] = 3.;
697
698 density = 1.2;
699
700 AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
701
1283eee5 702 // Mylar C5H4O2
703
704 amat[0]=12.011;
705 amat[1]=1.;
706 amat[2]=15.9994;
707
708 zmat[0]=6.;
709 zmat[1]=1.;
710 zmat[2]=8.;
711
712 wmat[0]=5.;
713 wmat[1]=4.;
714 wmat[2]=2.;
715
716 density = 1.39;
fe4da5cc 717
37831078 718 AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
1283eee5 719
ba1d05f9 720 // SiO2 - used later for the glass fiber
1283eee5 721
37831078 722 amat[0]=28.086;
723 amat[1]=15.9994;
1283eee5 724
37831078 725 zmat[0]=14.;
726 zmat[1]=8.;
1283eee5 727
37831078 728 wmat[0]=1.;
729 wmat[1]=2.;
1283eee5 730
1283eee5 731
ba1d05f9 732 AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
1283eee5 733
37831078 734 // Al
1283eee5 735
37831078 736 amat[0] = 26.98;
737 zmat[0] = 13.;
1283eee5 738
37831078 739 density = 2.7;
1283eee5 740
37831078 741 AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 742
37831078 743 // Si
1283eee5 744
37831078 745 amat[0] = 28.086;
9a3667bd 746 zmat[0] = 14.;
1283eee5 747
37831078 748 density = 2.33;
1283eee5 749
37831078 750 AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 751
37831078 752 // Cu
1283eee5 753
37831078 754 amat[0] = 63.546;
755 zmat[0] = 29.;
1283eee5 756
37831078 757 density = 8.96;
1283eee5 758
37831078 759 AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 760
37831078 761 // Tedlar C2H3F
1283eee5 762
37831078 763 amat[0] = 12.011;
764 amat[1] = 1.;
765 amat[2] = 18.998;
1283eee5 766
37831078 767 zmat[0] = 6.;
768 zmat[1] = 1.;
769 zmat[2] = 9.;
1283eee5 770
37831078 771 wmat[0] = 2.;
772 wmat[1] = 3.;
773 wmat[2] = 1.;
1283eee5 774
37831078 775 density = 1.71;
1283eee5 776
37831078 777 AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
1283eee5 778
1283eee5 779
37831078 780 // Plexiglas C5H8O2
1283eee5 781
37831078 782 amat[0]=12.011;
783 amat[1]=1.;
784 amat[2]=15.9994;
1283eee5 785
37831078 786 zmat[0]=6.;
787 zmat[1]=1.;
788 zmat[2]=8.;
1283eee5 789
37831078 790 wmat[0]=5.;
791 wmat[1]=8.;
792 wmat[2]=2.;
1283eee5 793
37831078 794 density=1.18;
1283eee5 795
37831078 796 AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
1283eee5 797
ba1d05f9 798 // Epoxy - C14 H20 O3
1283eee5 799
5a28a08f 800
801 amat[0]=12.011;
802 amat[1]=1.;
803 amat[2]=15.9994;
804
805 zmat[0]=6.;
806 zmat[1]=1.;
807 zmat[2]=8.;
808
ba1d05f9 809 wmat[0]=14.;
810 wmat[1]=20.;
5a28a08f 811 wmat[2]=3.;
812
ba1d05f9 813 density=1.25;
5a28a08f 814
815 AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
37831078 816
ba1d05f9 817 // Carbon
818
819 amat[0]=12.011;
820 zmat[0]=6.;
821 density= 2.265;
822
823 AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
824
825 // get epoxy
826
827 gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,X0,absl,buf,nbuf);
828
829 // Carbon fiber
830
831 wmat[0]=0.644; // by weight!
832 wmat[1]=0.356;
833
834 density=0.5*(1.25+2.265);
835
836 AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
837
838 // get SiO2
839
840 gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
841
842 wmat[0]=0.725; // by weight!
843 wmat[1]=0.275;
844
845 density=1.7;
846
847 AliMixture(39,"G10",amat,zmat,density,2,wmat);
848
849
850
851
37831078 852 //----------------------------------------------------------
853 // tracking media for gases
854 //----------------------------------------------------------
855
856 AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
857 AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
858 AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
859 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
860
861 //-----------------------------------------------------------
862 // tracking media for solids
863 //-----------------------------------------------------------
864
865 AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
866 AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
867 AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
868 AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
869 AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
870 AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
871 AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
872 AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
873 AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
874 AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
5a28a08f 875 AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
ba1d05f9 876 AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 877
fe4da5cc 878}
879
407ff276 880void AliTPC::GenerNoise(Int_t tablesize)
881{
882 //
883 //Generate table with noise
884 //
885 if (fTPCParam==0) {
886 // error message
887 fNoiseDepth=0;
888 return;
889 }
890 if (fNoiseTable) delete[] fNoiseTable;
891 fNoiseTable = new Float_t[tablesize];
892 fNoiseDepth = tablesize;
893 fCurrentNoise =0; //!index of the noise in the noise table
894
895 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
896 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
897}
898
899Float_t AliTPC::GetNoise()
900{
901 // get noise from table
902 // if ((fCurrentNoise%10)==0)
903 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
904 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
905 return fNoiseTable[fCurrentNoise++];
906 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
907}
908
909
792bb11c 910Bool_t AliTPC::IsSectorActive(Int_t sec)
911{
912 //
913 // check if the sector is active
914 if (!fActiveSectors) return kTRUE;
915 else return fActiveSectors[sec];
916}
917
918void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
919{
920 // activate interesting sectors
921 if (fActiveSectors) delete [] fActiveSectors;
922 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
923 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
924 for (Int_t i=0;i<n;i++)
925 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
926
927}
928
12d8d654 929void AliTPC::SetActiveSectors(Int_t flag)
792bb11c 930{
931 //
932 // activate sectors which were hitted by tracks
933 //loop over tracks
934 if (fHitType==0) return; // if Clones hit - not short volume ID information
935 if (fActiveSectors) delete [] fActiveSectors;
936 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
12d8d654 937 if (flag) {
938 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
939 return;
940 }
792bb11c 941 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
942 TBranch * branch=0;
943 if (fHitType>1) branch = gAlice->TreeH()->GetBranch("TPC2");
944 else branch = gAlice->TreeH()->GetBranch("TPC");
945 Stat_t ntracks = gAlice->TreeH()->GetEntries();
946 // loop over all hits
947 for(Int_t track=0;track<ntracks;track++){
948 ResetHits();
949 //
950 if (fTrackHits && fHitType&4) {
951 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
952 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
953 br1->GetEvent(track);
954 br2->GetEvent(track);
955 Int_t *volumes = fTrackHits->GetVolumes();
956 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
957 fActiveSectors[volumes[j]]=kTRUE;
958 }
959
960 //
961 if (fTrackHitsOld && fHitType&2) {
962 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
963 br->GetEvent(track);
964 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
965 for (UInt_t j=0;j<ar->GetSize();j++){
966 fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
967 }
968 }
969 }
970
971}
972
973
974
fe4da5cc 975
afc42102 976void AliTPC::Digits2Clusters(TFile *of, Int_t eventnumber)
fe4da5cc 977{
3c0f9266 978 //-----------------------------------------------------------------
979 // This is a simple cluster finder.
3c0f9266 980 //-----------------------------------------------------------------
afc42102 981 AliTPCclusterer::Digits2Clusters(fTPCParam,of,eventnumber);
fe4da5cc 982}
983
73042f01 984extern Double_t SigmaY2(Double_t, Double_t, Double_t);
985extern Double_t SigmaZ2(Double_t, Double_t);
fe4da5cc 986//_____________________________________________________________________________
afc42102 987void AliTPC::Hits2Clusters(TFile *of, Int_t eventn)
fe4da5cc 988{
8c555625 989 //--------------------------------------------------------
fe4da5cc 990 // TPC simple cluster generator from hits
991 // obtained from the TPC Fast Simulator
8c555625 992 // The point errors are taken from the parametrization
993 //--------------------------------------------------------
994
995 //-----------------------------------------------------------------
996 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
997 //-----------------------------------------------------------------
73042f01 998 // Adopted to Marian's cluster data structure by I.Belikov, CERN,
999 // Jouri.Belikov@cern.ch
1000 //----------------------------------------------------------------
1001
1002 /////////////////////////////////////////////////////////////////////////////
1003 //
1004 //---------------------------------------------------------------------
1005 // ALICE TPC Cluster Parameters
1006 //--------------------------------------------------------------------
1007
1008
1009
1010 // Cluster width in rphi
1011 const Float_t kACrphi=0.18322;
1012 const Float_t kBCrphi=0.59551e-3;
1013 const Float_t kCCrphi=0.60952e-1;
1014 // Cluster width in z
1015 const Float_t kACz=0.19081;
1016 const Float_t kBCz=0.55938e-3;
1017 const Float_t kCCz=0.30428;
1018
1019 TDirectory *savedir=gDirectory;
1020
1021 if (!of->IsOpen()) {
1022 cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
1023 return;
1024 }
3c0f9266 1025
afc42102 1026 //if(fDefaults == 0) SetDefaults();
cc80f89e 1027
73042f01 1028 Float_t sigmaRphi,sigmaZ,clRphi,clZ;
fe4da5cc 1029 //
1578254f 1030 TParticle *particle; // pointer to a given particle
fe4da5cc 1031 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 1032 Int_t sector;
fe4da5cc 1033 Int_t ipart;
1034 Float_t xyz[5];
1035 Float_t pl,pt,tanth,rpad,ratio;
fe4da5cc 1036 Float_t cph,sph;
1037
1038 //---------------------------------------------------------------
1039 // Get the access to the tracks
1040 //---------------------------------------------------------------
1041
73042f01 1042 TTree *tH = gAlice->TreeH();
1043 Stat_t ntracks = tH->GetEntries();
73042f01 1044
1045 //Switch to the output file
1046 of->cd();
1047
afc42102 1048 char cname[100];
1049
1050 sprintf(cname,"TreeC_TPC_%d",eventn);
1051
73042f01 1052 fTPCParam->Write(fTPCParam->GetTitle());
1053 AliTPCClustersArray carray;
1054 carray.Setup(fTPCParam);
1055 carray.SetClusterType("AliTPCcluster");
1056 carray.MakeTree();
1057
1058 Int_t nclusters=0; //cluster counter
fe4da5cc 1059
1060 //------------------------------------------------------------
cc80f89e 1061 // Loop over all sectors (72 sectors for 20 deg
1062 // segmentation for both lower and upper sectors)
1063 // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
3c0f9266 1064 // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
fe4da5cc 1065 //
3c0f9266 1066 // First cluster for sector 0 starts at "0"
fe4da5cc 1067 //------------------------------------------------------------
cc80f89e 1068
1069 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){
8c555625 1070 //MI change
cc80f89e 1071 fTPCParam->AdjustCosSin(isec,cph,sph);
fe4da5cc 1072
1073 //------------------------------------------------------------
1074 // Loop over tracks
1075 //------------------------------------------------------------
1076
1077 for(Int_t track=0;track<ntracks;track++){
1078 ResetHits();
73042f01 1079 tH->GetEvent(track);
fe4da5cc 1080 //
73042f01 1081 // Get number of the TPC hits
792bb11c 1082 //
39c8eb58 1083 tpcHit = (AliTPChit*)FirstHit(-1);
1084
fe4da5cc 1085 // Loop over hits
1086 //
39c8eb58 1087 while(tpcHit){
1088
1089 if (tpcHit->fQ == 0.) {
1090 tpcHit = (AliTPChit*) NextHit();
1091 continue; //information about track (I.Belikov)
1092 }
fe4da5cc 1093 sector=tpcHit->fSector; // sector number
39c8eb58 1094
39c8eb58 1095 if(sector != isec){
1096 tpcHit = (AliTPChit*) NextHit();
1097 continue;
1098 }
94de3818 1099 ipart=tpcHit->Track();
2ab0c725 1100 particle=gAlice->Particle(ipart);
1578254f 1101 pl=particle->Pz();
1102 pt=particle->Pt();
fe4da5cc 1103 if(pt < 1.e-9) pt=1.e-9;
1104 tanth=pl/pt;
1105 tanth = TMath::Abs(tanth);
94de3818 1106 rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
fe4da5cc 1107 ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
73042f01 1108
fe4da5cc 1109 // space-point resolutions
1110
73042f01 1111 sigmaRphi=SigmaY2(rpad,tanth,pt);
1112 sigmaZ =SigmaZ2(rpad,tanth );
fe4da5cc 1113
1114 // cluster widths
1115
73042f01 1116 clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
1117 clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
fe4da5cc 1118
1119 // temporary protection
1120
73042f01 1121 if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
1122 if(sigmaZ < 0.) sigmaZ=0.4e-3;
1123 if(clRphi < 0.) clRphi=2.5e-3;
1124 if(clZ < 0.) clZ=2.5e-5;
fe4da5cc 1125
1126 //
cc80f89e 1127
1128 //
1129 // smearing --> rotate to the 1 (13) or to the 25 (49) sector,
fe4da5cc 1130 // then the inaccuracy in a X-Y plane is only along Y (pad row)!
1131 //
94de3818 1132 Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
1133 Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
73042f01 1134 xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
1135 Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
1136 fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
1137 Float_t ymax=xprim*TMath::Tan(0.5*alpha);
1138 if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
94de3818 1139 xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
1140 if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
39c8eb58 1141 xyz[2]=sigmaRphi; // fSigmaY2
1142 xyz[3]=sigmaZ; // fSigmaZ2
1143 xyz[4]=tpcHit->fQ; // q
73042f01 1144
1145 AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
1146 if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
1147
94de3818 1148 Int_t tracks[3]={tpcHit->Track(), -1, -1};
39c8eb58 1149 AliTPCcluster cluster(tracks,xyz);
73042f01 1150
1151 clrow->InsertCluster(&cluster); nclusters++;
1152
39c8eb58 1153 tpcHit = (AliTPChit*)NextHit();
1154
1155
fe4da5cc 1156 } // end of loop over hits
73042f01 1157
1158 } // end of loop over tracks
1159
1160 Int_t nrows=fTPCParam->GetNRow(isec);
1161 for (Int_t irow=0; irow<nrows; irow++) {
1162 AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
1163 if (!clrow) continue;
1164 carray.StoreRow(isec,irow);
1165 carray.ClearRow(isec,irow);
1166 }
1167
cc80f89e 1168 } // end of loop over sectors
73042f01 1169
1170 cerr<<"Number of made clusters : "<<nclusters<<" \n";
6bc3458d 1171 carray.GetTree()->SetName(cname);
1172 carray.GetTree()->Write();
73042f01 1173
1174 savedir->cd(); //switch back to the input file
cc80f89e 1175
1176} // end of function
1177
1178//_________________________________________________________________
1179void AliTPC::Hits2ExactClustersSector(Int_t isec)
1180{
1181 //--------------------------------------------------------
1182 //calculate exact cross point of track and given pad row
1183 //resulting values are expressed in "digit" coordinata
1184 //--------------------------------------------------------
1185
1186 //-----------------------------------------------------------------
1187 // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
1188 //-----------------------------------------------------------------
1189 //
1190 if (fClustersArray==0){
1191 return;
1192 }
1193 //
1194 TParticle *particle; // pointer to a given particle
1195 AliTPChit *tpcHit; // pointer to a sigle TPC hit
5f16d237 1196 // Int_t sector,nhits;
cc80f89e 1197 Int_t ipart;
73042f01 1198 const Int_t kcmaxhits=30000;
de61d5d5 1199 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
1200 AliTPCFastVector & xxx = *xxxx;
73042f01 1201 Int_t maxhits = kcmaxhits;
cc80f89e 1202 //construct array for each padrow
1203 for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++)
1204 fClustersArray->CreateRow(isec,i);
fe4da5cc 1205
cc80f89e 1206 //---------------------------------------------------------------
1207 // Get the access to the tracks
1208 //---------------------------------------------------------------
1209
73042f01 1210 TTree *tH = gAlice->TreeH();
1211 Stat_t ntracks = tH->GetEntries();
2ab0c725 1212 Int_t npart = gAlice->GetNtrack();
5f16d237 1213 //MI change
1214 TBranch * branch=0;
792bb11c 1215 if (fHitType>1) branch = tH->GetBranch("TPC2");
5f16d237 1216 else branch = tH->GetBranch("TPC");
1217
cc80f89e 1218 //------------------------------------------------------------
1219 // Loop over tracks
1220 //------------------------------------------------------------
792bb11c 1221
5f16d237 1222 for(Int_t track=0;track<ntracks;track++){
1223 Bool_t isInSector=kTRUE;
cc80f89e 1224 ResetHits();
792bb11c 1225 isInSector = TrackInVolume(isec,track);
5f16d237 1226 if (!isInSector) continue;
1227 //MI change
1228 branch->GetEntry(track); // get next track
cc80f89e 1229 //
1230 // Get number of the TPC hits and a pointer
1231 // to the particles
cc80f89e 1232 // Loop over hits
1233 //
1234 Int_t currentIndex=0;
1235 Int_t lastrow=-1; //last writen row
5f16d237 1236
1237 //M.I. changes
1238
1239 tpcHit = (AliTPChit*)FirstHit(-1);
1240 while(tpcHit){
1241
1242 Int_t sector=tpcHit->fSector; // sector number
1243 if(sector != isec){
1244 tpcHit = (AliTPChit*) NextHit();
1245 continue;
1246 }
1247
94de3818 1248 ipart=tpcHit->Track();
2ab0c725 1249 if (ipart<npart) particle=gAlice->Particle(ipart);
cc80f89e 1250
1251 //find row number
1252
94de3818 1253 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
cc80f89e 1254 Int_t index[3]={1,isec,0};
1255 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
5f16d237 1256 if (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
cc80f89e 1257 if (lastrow<0) lastrow=currentrow;
1258 if (currentrow==lastrow){
1259 if ( currentIndex>=maxhits){
73042f01 1260 maxhits+=kcmaxhits;
cc80f89e 1261 xxx.ResizeTo(4*maxhits);
1262 }
1263 xxx(currentIndex*4)=x[0];
1264 xxx(currentIndex*4+1)=x[1];
1265 xxx(currentIndex*4+2)=x[2];
1266 xxx(currentIndex*4+3)=tpcHit->fQ;
1267 currentIndex++;
1268 }
1269 else
1270 if (currentIndex>2){
1271 Float_t sumx=0;
1272 Float_t sumx2=0;
1273 Float_t sumx3=0;
1274 Float_t sumx4=0;
1275 Float_t sumy=0;
1276 Float_t sumxy=0;
1277 Float_t sumx2y=0;
1278 Float_t sumz=0;
1279 Float_t sumxz=0;
1280 Float_t sumx2z=0;
1281 Float_t sumq=0;
1282 for (Int_t index=0;index<currentIndex;index++){
1283 Float_t x,x2,x3,x4;
1284 x=x2=x3=x4=xxx(index*4);
1285 x2*=x;
1286 x3*=x2;
1287 x4*=x3;
1288 sumx+=x;
1289 sumx2+=x2;
1290 sumx3+=x3;
1291 sumx4+=x4;
1292 sumy+=xxx(index*4+1);
1293 sumxy+=xxx(index*4+1)*x;
1294 sumx2y+=xxx(index*4+1)*x2;
1295 sumz+=xxx(index*4+2);
1296 sumxz+=xxx(index*4+2)*x;
1297 sumx2z+=xxx(index*4+2)*x2;
1298 sumq+=xxx(index*4+3);
1299 }
73042f01 1300 Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
cc80f89e 1301 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
1302 sumx2*(sumx*sumx3-sumx2*sumx2);
1303
1304 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
1305 sumx2*(sumxy*sumx3-sumx2y*sumx2);
1306 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
1307 sumx2*(sumxz*sumx3-sumx2z*sumx2);
1308
1309 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
1310 sumx2*(sumx*sumx2y-sumx2*sumxy);
1311 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
1312 sumx2*(sumx*sumx2z-sumx2*sumxz);
1313
73042f01 1314 Float_t y=detay/det+centralPad;
cc80f89e 1315 Float_t z=detaz/det;
1316 Float_t by=detby/det; //y angle
1317 Float_t bz=detbz/det; //z angle
1318 sumy/=Float_t(currentIndex);
1319 sumz/=Float_t(currentIndex);
5f16d237 1320
cc80f89e 1321 AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
5f16d237 1322 if (row!=0) {
1323 AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
1324 // AliComplexCluster cl;
1325 cl->fX=z;
1326 cl->fY=y;
1327 cl->fQ=sumq;
1328 cl->fSigmaX2=bz;
1329 cl->fSigmaY2=by;
1330 cl->fTracks[0]=ipart;
1331 }
cc80f89e 1332 currentIndex=0;
1333 lastrow=currentrow;
1334 } //end of calculating cluster for given row
1335
1336
5f16d237 1337 tpcHit = (AliTPChit*)NextHit();
cc80f89e 1338 } // end of loop over hits
1339 } // end of loop over tracks
1340 //write padrows to tree
1341 for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) {
1342 fClustersArray->StoreRow(isec,ii);
1343 fClustersArray->ClearRow(isec,ii);
1344 }
1345 xxxx->Delete();
1346
fe4da5cc 1347}
0a61bf9d 1348
1349
1350
1351//__
1352void AliTPC::SDigits2Digits2(Int_t eventnumber)
1353{
1354 //create digits from summable digits
407ff276 1355 GenerNoise(500000); //create teble with noise
0a61bf9d 1356 char sname[100];
1357 char dname[100];
1358 sprintf(sname,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1359 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1360
1361 //conect tree with sSDigits
12d8d654 1362 TTree *t;
1363 if (gAlice->GetTreeDFile()) {
1364 t = (TTree *)gAlice->GetTreeDFile()->Get(sname);
1365 } else {
1366 t = (TTree *)gDirectory->Get(sname);
1367 }
1368 if (!t) {
1369 cerr<<"TPC tree with sdigits not found"<<endl;
1370 return;
1371 }
0a61bf9d 1372 AliSimDigits digarr, *dummy=&digarr;
1373 t->GetBranch("Segment")->SetAddress(&dummy);
1374 Stat_t nentries = t->GetEntries();
1375
5f16d237 1376 // set zero suppression
1377
1378 fTPCParam->SetZeroSup(2);
1379
1380 // get zero suppression
1381
1382 Int_t zerosup = fTPCParam->GetZeroSup();
1383
1384 //make tree with digits
1385
0a61bf9d 1386 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1387 arr->SetClass("AliSimDigits");
1388 arr->Setup(fTPCParam);
12d8d654 1389// Note that methods arr->MakeTree have different signatures
1390 if (gAlice->GetTreeDFile()) {
1391 arr->MakeTree(gAlice->GetTreeDFile());
1392 } else {
1393 arr->MakeTree(fDigitsFile);
1394 }
0a61bf9d 1395
1396 AliTPCParam * par =fTPCParam;
5f16d237 1397
0a61bf9d 1398 //Loop over segments of the TPC
5f16d237 1399
0a61bf9d 1400 for (Int_t n=0; n<nentries; n++) {
1401 t->GetEvent(n);
1402 Int_t sec, row;
1403 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
1404 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
1405 continue;
1406 }
792bb11c 1407 if (!IsSectorActive(sec)) continue;
0a61bf9d 1408 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1409 Int_t nrows = digrow->GetNRows();
1410 Int_t ncols = digrow->GetNCols();
1411
1412 digrow->ExpandBuffer();
1413 digarr.ExpandBuffer();
1414 digrow->ExpandTrackBuffer();
1415 digarr.ExpandTrackBuffer();
1416
5f16d237 1417
407ff276 1418 Short_t * pamp0 = digarr.GetDigits();
1419 Int_t * ptracks0 = digarr.GetTracks();
1420 Short_t * pamp1 = digrow->GetDigits();
1421 Int_t * ptracks1 = digrow->GetTracks();
1422 Int_t nelems =nrows*ncols;
1423 Int_t saturation = fTPCParam->GetADCSat();
1424 //use internal structure of the AliDigits - for speed reason
1425 //if you cahnge implementation
1426 //of the Alidigits - it must be rewriten -
1427 for (Int_t i= 0; i<nelems; i++){
1428 // Float_t q = *pamp0;
1429 //q/=16.; //conversion faktor
1430 //Float_t noise= GetNoise();
1431 //q+=noise;
1432 //q= TMath::Nint(q);
1433 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1434 if (q>zerosup){
1435 if (q>saturation) q=saturation;
1436 *pamp1=(Short_t)q;
1437 //if (ptracks0[0]==0)
1438 // ptracks1[0]=1;
1439 //else
1440 ptracks1[0]=ptracks0[0];
1441 ptracks1[nelems]=ptracks0[nelems];
1442 ptracks1[2*nelems]=ptracks0[2*nelems];
1443 }
1444 pamp0++;
1445 pamp1++;
1446 ptracks0++;
1447 ptracks1++;
1448 }
5f16d237 1449
5f16d237 1450 arr->StoreRow(sec,row);
1451 arr->ClearRow(sec,row);
9fe90376 1452 // cerr<<sec<<"\t"<<row<<"\n";
5f16d237 1453 }
0a61bf9d 1454
0a61bf9d 1455
5f16d237 1456 //write results
0a61bf9d 1457
5f16d237 1458
1459 arr->GetTree()->SetName(dname);
12d8d654 1460 arr->GetTree()->AutoSave();
5f16d237 1461 delete arr;
1462}
1463//_________________________________________
1464void AliTPC::Merge(TTree * intree, Int_t *mask, Int_t nin, Int_t outid)
1465{
1466
1467 //intree - pointer to array of trees with s digits
1468 //mask - mask for each
1469 //nin - number of inputs
1470 //outid - event number of the output event
1471
1472 //create digits from summable digits
1473 //conect tree with sSDigits
1474
1475
1476 AliSimDigits ** digarr = new AliSimDigits*[nin];
1477 for (Int_t i1=0;i1<nin; i1++){
1478 digarr[i1]=0;
1479 intree[i1].GetBranch("Segment")->SetAddress(&digarr[i1]);
0a61bf9d 1480 }
5f16d237 1481 Stat_t nentries = intree[0].GetEntries();
1482
1483 //make tree with digits
1484 char dname[100];
1485 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),outid);
1486 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1487 arr->SetClass("AliSimDigits");
1488 arr->Setup(fTPCParam);
1489 arr->MakeTree(fDigitsFile);
0a61bf9d 1490
5f16d237 1491 // set zero suppression
0a61bf9d 1492
5f16d237 1493 fTPCParam->SetZeroSup(2);
0a61bf9d 1494
5f16d237 1495 // get zero suppression
1496
1497 Int_t zerosup = fTPCParam->GetZeroSup();
1498
1499
1500 AliTPCParam * par =fTPCParam;
1501
1502 //Loop over segments of the TPC
1503 for (Int_t n=0; n<nentries; n++) {
0a61bf9d 1504
5f16d237 1505 for (Int_t i=0;i<nin; i++){
1506 //connect proper digits
1507 intree[i].GetEvent(n);
1508 digarr[i]->ExpandBuffer();
1509 digarr[i]->ExpandTrackBuffer();
1510 }
1511 Int_t sec, row;
1512 if (!par->AdjustSectorRow(digarr[0]->GetID(),sec,row)) {
1513 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr[0]->GetID()<<endl;
1514 continue;
1515 }
0a61bf9d 1516
5f16d237 1517 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1518 Int_t nrows = digrow->GetNRows();
1519 Int_t ncols = digrow->GetNCols();
0a61bf9d 1520
5f16d237 1521 digrow->ExpandBuffer();
1522 digrow->ExpandTrackBuffer();
1523
1524 for (Int_t rows=0;rows<nrows; rows++){
1525 for (Int_t col=0;col<ncols; col++){
1526 Float_t q=0;
1527 Int_t label[1000]; // i hope no more than 300 events merged
1528 Int_t labptr = 0;
1529 // looop over digits
1530 for (Int_t i=0;i<nin; i++){
1531 q += digarr[i]->GetDigitFast(rows,col);
1532 for (Int_t tr=0;tr<3;tr++) {
1533 Int_t lab = digarr[i]->GetTrackIDFast(rows,col,tr);
1534 if ( lab > 1) {
1535 label[labptr]=lab+mask[i]-2;
1536 labptr++;
1537 }
1538 }
1539 }
1540 //add noise
1541 q = gRandom->Gaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac()*16);
1542
1543 q/=16; //conversion faktor
1544 q=(Short_t)q;
1545
1546 if (q> zerosup){
1547
43510af3 1548 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat();
1549 digrow->SetDigitFast((Short_t)q,rows,col);
5f16d237 1550 for (Int_t tr=0;tr<3;tr++){
1551 if (tr<labptr)
1552 ((AliSimDigits*)digrow)->SetTrackIDFast(label[tr],rows,col,tr);
1553 else
1554 ((AliSimDigits*)digrow)->SetTrackIDFast(-1,rows,col,tr);
1555 }
1556 }
1557 }
1558 }
1559 arr->StoreRow(sec,row);
1560
1561 arr->ClearRow(sec,row);
792bb11c 1562
5f16d237 1563 }
1564
1565 delete digarr;
1566 arr->GetTree()->SetName(dname);
1567 arr->GetTree()->Write();
1568
1569 delete arr;
0a61bf9d 1570
0a61bf9d 1571}
1572
0a61bf9d 1573/*_________________________________________
afc42102 1574void AliTPC::SDigits2Digits(Int_t eventnumber)
2ab0c725 1575{
afc42102 1576
1577
1578 cerr<<"Digitizing TPC...\n";
1579
1580 Hits2Digits(eventnumber);
1581
1582
1583 //write results
1584
1585 // char treeName[100];
1586
1587 // sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1588
1589 // GetDigitsArray()->GetTree()->Write(treeName);
1590}
0a61bf9d 1591*/
afc42102 1592//__________________________________________________________________
1593void AliTPC::SetDefaults(){
1594
1595
1596 cerr<<"Setting default parameters...\n";
1597
1598 // Set response functions
1599
2ab0c725 1600 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
7a09f434 1601 if(param){
1602 printf("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...\n");
1603 delete param;
1604 param = new AliTPCParamSR();
1605 }
1606 else {
1607 param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
1608 }
1609 if(!param){
1610 printf("No TPC parameters found\n");
1611 exit(4);
1612 }
1613
1614
2ab0c725 1615 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
f03e3423 1616 AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
1617 AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
2ab0c725 1618 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1619 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1620 rf->SetOffset(3*param->GetZSigma());
1621 rf->Update();
afc42102 1622
1623 TDirectory *savedir=gDirectory;
2ab0c725 1624 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
1625 if (!f->IsOpen()) {
afc42102 1626 cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
2ab0c725 1627 exit(3);
1628 }
1629 prfinner->Read("prf_07504_Gati_056068_d02");
f03e3423 1630 prfouter1->Read("prf_10006_Gati_047051_d03");
1631 prfouter2->Read("prf_15006_Gati_047051_d03");
2ab0c725 1632 f->Close();
afc42102 1633 savedir->cd();
1634
2ab0c725 1635 param->SetInnerPRF(prfinner);
f03e3423 1636 param->SetOuter1PRF(prfouter1);
1637 param->SetOuter2PRF(prfouter2);
2ab0c725 1638 param->SetTimeRF(rf);
1639
afc42102 1640 // set fTPCParam
1641
2ab0c725 1642 SetParam(param);
1643
afc42102 1644
1645 fDefaults = 1;
1646
1647}
1648//__________________________________________________________________
1649void AliTPC::Hits2Digits(Int_t eventnumber)
1650{
1651 //----------------------------------------------------
1652 // Loop over all sectors for a single event
1653 //----------------------------------------------------
1654
1655
1656 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1657 GenerNoise(500000); //create teble with noise
2ab0c725 1658
1659 //setup TPCDigitsArray
afc42102 1660
1661 if(GetDigitsArray()) delete GetDigitsArray();
1662
2ab0c725 1663 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1664 arr->SetClass("AliSimDigits");
afc42102 1665 arr->Setup(fTPCParam);
12d8d654 1666// Note that methods arr->MakeTree have different signatures
1667 if (gAlice->GetTreeDFile()) {
1668 arr->MakeTree(gAlice->GetTreeDFile());
1669 } else {
1670 arr->MakeTree(fDigitsFile);
1671 }
2ab0c725 1672 SetDigitsArray(arr);
1673
afc42102 1674 fDigitsSwitch=0; // standard digits
2ab0c725 1675
0a9b058d 1676 cerr<<"Digitizing TPC -- normal digits...\n";
fe4da5cc 1677
f03e3423 1678 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
1679
afc42102 1680 // write results
1681
1682 char treeName[100];
1683
1684 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
f8cf550c 1685
6bc3458d 1686 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1687 GetDigitsArray()->GetTree()->AutoSave();
cc80f89e 1688
cc80f89e 1689
8c555625 1690}
1691
afc42102 1692
1693
f8cf550c 1694//__________________________________________________________________
0a61bf9d 1695void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1696{
1697
1698 //-----------------------------------------------------------
1699 // summable digits - 16 bit "ADC", no noise, no saturation
1700 //-----------------------------------------------------------
1701
1702 //----------------------------------------------------
afc42102 1703 // Loop over all sectors for a single event
f8cf550c 1704 //----------------------------------------------------
1705
afc42102 1706
1707 if(fDefaults == 0) SetDefaults();
407ff276 1708 GenerNoise(500000); //create table with noise
afc42102 1709 //setup TPCDigitsArray
1710
1711 if(GetDigitsArray()) delete GetDigitsArray();
1712
1713 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1714 arr->SetClass("AliSimDigits");
1715 arr->Setup(fTPCParam);
12d8d654 1716// Note that methods arr->MakeTree have different signatures
1717 if (gAlice->GetTreeSFile()) {
1718 arr->MakeTree(gAlice->GetTreeSFile());
1719 } else {
1720 arr->MakeTree(fDigitsFile);
1721 }
afc42102 1722 SetDigitsArray(arr);
1723
0a9b058d 1724 cerr<<"Digitizing TPC -- summable digits...\n";
afc42102 1725
1726 fDigitsSwitch=1; // summable digits
5f16d237 1727
1728 // set zero suppression to "0"
1729
1730 fTPCParam->SetZeroSup(0);
f8cf550c 1731
792bb11c 1732 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
f8cf550c 1733
afc42102 1734
1735 // write results
1736
1737 char treeName[100];
1738
1739 sprintf(treeName,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1740
6bc3458d 1741 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1742 GetDigitsArray()->GetTree()->AutoSave();
afc42102 1743
f8cf550c 1744}
8c555625 1745
afc42102 1746
1747
0a61bf9d 1748//__________________________________________________________________
1749void AliTPC::Hits2SDigits()
1750{
1751
1752 //-----------------------------------------------------------
1753 // summable digits - 16 bit "ADC", no noise, no saturation
1754 //-----------------------------------------------------------
1755
1756 //----------------------------------------------------
1757 // Loop over all sectors for a single event
1758 //----------------------------------------------------
1759 //MI change - for pp run
1760 Int_t eventnumber = gAlice->GetEvNumber();
1761
1762 if(fDefaults == 0) SetDefaults();
180f4872 1763 GenerNoise(500000); //create table with noise
0a61bf9d 1764
1765 //setup TPCDigitsArray
1766
1767 if(GetDigitsArray()) delete GetDigitsArray();
1768
1769 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1770 arr->SetClass("AliSimDigits");
1771 arr->Setup(fTPCParam);
12d8d654 1772// Note that methods arr->MakeTree have different signatures
1773 if (gAlice->GetTreeSFile()) {
1774 arr->MakeTree(gAlice->GetTreeSFile());
1775 } else {
1776 arr->MakeTree(fDigitsFile);
1777 }
0a61bf9d 1778 SetDigitsArray(arr);
1779
0a9b058d 1780 cerr<<"Digitizing TPC -- summable digits...\n";
0a61bf9d 1781
1782 // fDigitsSwitch=1; // summable digits -for the moment direct
1783
792bb11c 1784 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
0a61bf9d 1785
1786
1787 // write results
1788 char treeName[100];
1789
1790 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1791
6bc3458d 1792 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1793 GetDigitsArray()->GetTree()->AutoSave();
0a61bf9d 1794
1795}
1796
1797
fe4da5cc 1798//_____________________________________________________________________________
8c555625 1799void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1800{
8c555625 1801 //-------------------------------------------------------------------
fe4da5cc 1802 // TPC conversion from hits to digits.
8c555625 1803 //-------------------------------------------------------------------
1804
1805 //-----------------------------------------------------------------
1806 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1807 //-----------------------------------------------------------------
1808
fe4da5cc 1809 //-------------------------------------------------------
8c555625 1810 // Get the access to the track hits
fe4da5cc 1811 //-------------------------------------------------------
8c555625 1812
afc42102 1813 // check if the parameters are set - important if one calls this method
1814 // directly, not from the Hits2Digits
1815
1816 if(fDefaults == 0) SetDefaults();
cc80f89e 1817
73042f01 1818 TTree *tH = gAlice->TreeH(); // pointer to the hits tree
1819 Stat_t ntracks = tH->GetEntries();
8c555625 1820
1821 if( ntracks > 0){
1822
1823 //-------------------------------------------
1824 // Only if there are any tracks...
1825 //-------------------------------------------
1826
8c555625 1827 TObjArray **row;
fe4da5cc 1828
a62d28a2 1829 //printf("*** Processing sector number %d ***\n",isec);
8c555625 1830
1831 Int_t nrows =fTPCParam->GetNRow(isec);
1832
1833 row= new TObjArray* [nrows];
fe4da5cc 1834
73042f01 1835 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1836
1837 //--------------------------------------------------------
1838 // Digitize this sector, row by row
de61d5d5 1839 // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
8c555625 1840 // each one containing electrons accepted on this
1841 // row, assigned into tracks
1842 //--------------------------------------------------------
1843
1844 Int_t i;
1845
2ab0c725 1846 if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree(fDigitsFile);
8c555625 1847
cc80f89e 1848 for (i=0;i<nrows;i++){
8c555625 1849
afc42102 1850 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1851
cc80f89e 1852 DigitizeRow(i,isec,row);
8c555625 1853
cc80f89e 1854 fDigitsArray->StoreRow(isec,i);
8c555625 1855
792bb11c 1856 Int_t ndig = dig->GetDigitSize();
1857 if (gDebug > 10) printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
1858
cc80f89e 1859 fDigitsArray->ClearRow(isec,i);
8c555625 1860
cc80f89e 1861
8c555625 1862 } // end of the sector digitization
8c555625 1863
cc80f89e 1864 for(i=0;i<nrows;i++){
39c8eb58 1865 row[i]->Delete();
1866 delete row[i];
cc80f89e 1867 }
1868
8c555625 1869 delete [] row; // delete the array of pointers to TObjArray-s
1870
1871 } // ntracks >0
8c555625 1872
cc80f89e 1873} // end of Hits2DigitsSector
8c555625 1874
8c555625 1875
8c555625 1876//_____________________________________________________________________________
cc80f89e 1877void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1878{
1879 //-----------------------------------------------------------
1880 // Single row digitization, coupling from the neighbouring
1881 // rows taken into account
1882 //-----------------------------------------------------------
1883
1884 //-----------------------------------------------------------------
1885 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1886 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1887 //-----------------------------------------------------------------
1888
1889
8c555625 1890 Float_t zerosup = fTPCParam->GetZeroSup();
1891 Int_t nrows =fTPCParam->GetNRow(isec);
cc80f89e 1892 fCurrentIndex[1]= isec;
8c555625 1893
8c555625 1894
73042f01 1895 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1896 Int_t nofTbins = fTPCParam->GetMaxTBin();
1897 Int_t indexRange[4];
8c555625 1898 //
1899 // Integrated signal for this row
1900 // and a single track signal
cc80f89e 1901 //
de61d5d5 1902
1903 AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
1904 AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
8c555625 1905 //
de61d5d5 1906 AliTPCFastMatrix &total = *m1;
8c555625 1907
1908 // Array of pointers to the label-signal list
1909
73042f01 1910 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1911 Float_t **pList = new Float_t* [nofDigits];
8c555625 1912
1913 Int_t lp;
cc80f89e 1914 Int_t i1;
73042f01 1915 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1916 //
cc80f89e 1917 //calculate signal
1918 //
1919 Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
1920 Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
1921 for (Int_t row= row1;row<=row2;row++){
1922 Int_t nTracks= rows[row]->GetEntries();
1923 for (i1=0;i1<nTracks;i1++){
1924 fCurrentIndex[2]= row;
1925 fCurrentIndex[3]=irow;
1926 if (row==irow){
1927 m2->Zero(); // clear single track signal matrix
73042f01 1928 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1929 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1930 }
73042f01 1931 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1932 }
8c555625 1933 }
cc80f89e 1934
8c555625 1935 Int_t tracks[3];
8c555625 1936
cc80f89e 1937 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1938 Int_t gi=-1;
1939 Float_t fzerosup = zerosup+0.5;
1940 for(Int_t it=0;it<nofTbins;it++){
1941 Float_t *pq = &(total.UncheckedAt(0,it));
1942 for(Int_t ip=0;ip<nofPads;ip++){
1943 gi++;
1944 Float_t q=*pq;
1945 pq++;
f8cf550c 1946 if(fDigitsSwitch == 0){
407ff276 1947 q+=GetNoise();
de61d5d5 1948 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1949 q = TMath::Nint(q);
f8cf550c 1950 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
cc80f89e 1951
f8cf550c 1952 }
1953
1954 else {
5f16d237 1955 if(q <= 0.) continue; // do not fill zeros
68771f83 1956 if(q>2000.) q=2000.;
f8cf550c 1957 q *= 16.;
68771f83 1958 q = TMath::Nint(q);
f8cf550c 1959 }
8c555625 1960
1961 //
1962 // "real" signal or electronic noise (list = -1)?
1963 //
1964
1965 for(Int_t j1=0;j1<3;j1++){
407ff276 1966 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 1967 }
1968
cc80f89e 1969//Begin_Html
1970/*
1971 <A NAME="AliDigits"></A>
1972 using of AliDigits object
1973*/
1974//End_Html
1975 dig->SetDigitFast((Short_t)q,it,ip);
1976 if (fDigitsArray->IsSimulated())
1977 {
1978 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
1979 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
1980 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
1981 }
1982
8c555625 1983
1984 } // end of loop over time buckets
1985 } // end of lop over pads
1986
1987 //
1988 // This row has been digitized, delete nonused stuff
1989 //
1990
73042f01 1991 for(lp=0;lp<nofDigits;lp++){
8c555625 1992 if(pList[lp]) delete [] pList[lp];
1993 }
1994
1995 delete [] pList;
1996
1997 delete m1;
1998 delete m2;
cc80f89e 1999 // delete m3;
8c555625 2000
2001} // end of DigitizeRow
cc80f89e 2002
8c555625 2003//_____________________________________________________________________________
cc80f89e 2004
de61d5d5 2005Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
2006 AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
8c555625 2007{
2008
2009 //---------------------------------------------------------------
2010 // Calculates 2-D signal (pad,time) for a single track,
2011 // returns a pointer to the signal matrix and the track label
2012 // No digitization is performed at this level!!!
2013 //---------------------------------------------------------------
2014
2015 //-----------------------------------------------------------------
2016 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 2017 // Modified: Marian Ivanov
8c555625 2018 //-----------------------------------------------------------------
2019
de61d5d5 2020 AliTPCFastVector *tv;
2021
2022 tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
2023 AliTPCFastVector &v = *tv;
8c555625 2024
2025 Float_t label = v(0);
73042f01 2026 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3])-1)/2;
8c555625 2027
8c555625 2028 Int_t nElectrons = (tv->GetNrows()-1)/4;
73042f01 2029 indexRange[0]=9999; // min pad
2030 indexRange[1]=-1; // max pad
2031 indexRange[2]=9999; //min time
2032 indexRange[3]=-1; // max time
8c555625 2033
de61d5d5 2034 AliTPCFastMatrix &signal = *m1;
2035 AliTPCFastMatrix &total = *m2;
8c555625 2036 //
2037 // Loop over all electrons
2038 //
8c555625 2039 for(Int_t nel=0; nel<nElectrons; nel++){
cc80f89e 2040 Int_t idx=nel*4;
2041 Float_t aval = v(idx+4);
2042 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
2043 Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
de61d5d5 2044 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
2045
2046 Int_t *index = fTPCParam->GetResBin(0);
2047 Float_t *weight = & (fTPCParam->GetResWeight(0));
2048
2049 if (n>0) for (Int_t i =0; i<n; i++){
73042f01 2050 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
de61d5d5 2051
2052 if (pad>=0){
cc80f89e 2053 Int_t time=index[2];
de61d5d5 2054 Float_t qweight = *(weight)*eltoadcfac;
cc80f89e 2055
de61d5d5 2056 if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
2057 total.UncheckedAt(pad,time)+=qweight;
2058 if (indexRange[0]>pad) indexRange[0]=pad;
2059 if (indexRange[1]<pad) indexRange[1]=pad;
2060 if (indexRange[2]>time) indexRange[2]=time;
2061 if (indexRange[3]<time) indexRange[3]=time;
2062
2063 index+=3;
2064 weight++;
2065
cc80f89e 2066 }
2067 }
8c555625 2068 } // end of loop over electrons
cc80f89e 2069
8c555625 2070 return label; // returns track label when finished
2071}
2072
2073//_____________________________________________________________________________
de61d5d5 2074void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *m,
2075 Int_t *indexRange, Float_t **pList)
8c555625 2076{
2077 //----------------------------------------------------------------------
2078 // Updates the list of tracks contributing to digits for a given row
2079 //----------------------------------------------------------------------
2080
2081 //-----------------------------------------------------------------
2082 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2083 //-----------------------------------------------------------------
2084
de61d5d5 2085 AliTPCFastMatrix &signal = *m;
8c555625 2086
2087 // lop over nonzero digits
2088
73042f01 2089 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
2090 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 2091
2092
921bf71a 2093 // accept only the contribution larger than 500 electrons (1/2 s_noise)
2094
cc80f89e 2095 if(signal(ip,it)<0.5) continue;
921bf71a 2096
2097
73042f01 2098 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 2099
73042f01 2100 if(!pList[globalIndex]){
8c555625 2101
2102 //
2103 // Create new list (6 elements - 3 signals and 3 labels),
8c555625 2104 //
2105
73042f01 2106 pList[globalIndex] = new Float_t [6];
8c555625 2107
2108 // set list to -1
2109
73042f01 2110 *pList[globalIndex] = -1.;
2111 *(pList[globalIndex]+1) = -1.;
2112 *(pList[globalIndex]+2) = -1.;
2113 *(pList[globalIndex]+3) = -1.;
2114 *(pList[globalIndex]+4) = -1.;
2115 *(pList[globalIndex]+5) = -1.;
8c555625 2116
2117
73042f01 2118 *pList[globalIndex] = label;
2119 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2120 }
2121 else{
2122
2123 // check the signal magnitude
2124
73042f01 2125 Float_t highest = *(pList[globalIndex]+3);
2126 Float_t middle = *(pList[globalIndex]+4);
2127 Float_t lowest = *(pList[globalIndex]+5);
8c555625 2128
2129 //
2130 // compare the new signal with already existing list
2131 //
2132
2133 if(signal(ip,it)<lowest) continue; // neglect this track
2134
2135 //
2136
2137 if (signal(ip,it)>highest){
73042f01 2138 *(pList[globalIndex]+5) = middle;
2139 *(pList[globalIndex]+4) = highest;
2140 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2141
73042f01 2142 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2143 *(pList[globalIndex]+1) = *pList[globalIndex];
2144 *pList[globalIndex] = label;
8c555625 2145 }
2146 else if (signal(ip,it)>middle){
73042f01 2147 *(pList[globalIndex]+5) = middle;
2148 *(pList[globalIndex]+4) = signal(ip,it);
8c555625 2149
73042f01 2150 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2151 *(pList[globalIndex]+1) = label;
8c555625 2152 }
2153 else{
73042f01 2154 *(pList[globalIndex]+5) = signal(ip,it);
2155 *(pList[globalIndex]+2) = label;
8c555625 2156 }
2157 }
2158
2159 } // end of loop over pads
2160 } // end of loop over time bins
2161
2162
2163
8c555625 2164}//end of GetList
2165//___________________________________________________________________
2166void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
2167 Stat_t ntracks,TObjArray **row)
2168{
2169
2170 //-----------------------------------------------------------------
2171 // Prepares the sector digitization, creates the vectors of
2172 // tracks for each row of this sector. The track vector
2173 // contains the track label and the position of electrons.
2174 //-----------------------------------------------------------------
2175
2176 //-----------------------------------------------------------------
2177 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2178 //-----------------------------------------------------------------
2179
cc80f89e 2180 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 2181 Int_t i;
cc80f89e 2182 Float_t xyz[4];
8c555625 2183
2184 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 2185 //MI change
2186 TBranch * branch=0;
792bb11c 2187 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 2188 else branch = TH->GetBranch("TPC");
2189
8c555625 2190
2191 //----------------------------------------------
2192 // Create TObjArray-s, one for each row,
de61d5d5 2193 // each TObjArray will store the AliTPCFastVectors
2194 // of electrons, one AliTPCFastVectors per each track.
8c555625 2195 //----------------------------------------------
2196
f74bb6f5 2197 Int_t *nofElectrons = new Int_t [nrows]; // electron counter for each row
de61d5d5 2198 AliTPCFastVector **tracks = new AliTPCFastVector* [nrows]; //pointers to the track vectors
2199
8c555625 2200 for(i=0; i<nrows; i++){
2201 row[i] = new TObjArray;
f74bb6f5 2202 nofElectrons[i]=0;
2203 tracks[i]=0;
8c555625 2204 }
8c555625 2205
37831078 2206
2207
8c555625 2208 //--------------------------------------------------------------------
2209 // Loop over tracks, the "track" contains the full history
2210 //--------------------------------------------------------------------
2211
2212 Int_t previousTrack,currentTrack;
2213 previousTrack = -1; // nothing to store so far!
2214
2215 for(Int_t track=0;track<ntracks;track++){
39c8eb58 2216 Bool_t isInSector=kTRUE;
8c555625 2217 ResetHits();
792bb11c 2218 isInSector = TrackInVolume(isec,track);
39c8eb58 2219 if (!isInSector) continue;
2220 //MI change
2221 branch->GetEntry(track); // get next track
2222
2223 //M.I. changes
8c555625 2224
39c8eb58 2225 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 2226
2227 //--------------------------------------------------------------
2228 // Loop over hits
2229 //--------------------------------------------------------------
2230
8c555625 2231
39c8eb58 2232 while(tpcHit){
8c555625 2233
2234 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 2235 if(sector != isec){
2236 tpcHit = (AliTPChit*) NextHit();
2237 continue;
2238 }
8c555625 2239
94de3818 2240 currentTrack = tpcHit->Track(); // track number
39c8eb58 2241
2242
8c555625 2243 if(currentTrack != previousTrack){
2244
2245 // store already filled fTrack
2246
2247 for(i=0;i<nrows;i++){
2248 if(previousTrack != -1){
73042f01 2249 if(nofElectrons[i]>0){
de61d5d5 2250 AliTPCFastVector &v = *tracks[i];
8c555625 2251 v(0) = previousTrack;
73042f01 2252 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2253 row[i]->Add(tracks[i]);
8c555625 2254 }
2255 else{
de61d5d5 2256 delete tracks[i]; // delete empty AliTPCFastVector
cc80f89e 2257 tracks[i]=0;
8c555625 2258 }
2259 }
2260
73042f01 2261 nofElectrons[i]=0;
de61d5d5 2262 tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors for the next fTrack
8c555625 2263
2264 } // end of loop over rows
2265
2266 previousTrack=currentTrack; // update track label
2267 }
2268
73042f01 2269 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 2270
2271 //---------------------------------------------------
2272 // Calculate the electron attachment probability
2273 //---------------------------------------------------
2274
cc80f89e 2275
94de3818 2276 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
cc80f89e 2277 /fTPCParam->GetDriftV();
8c555625 2278 // in microseconds!
73042f01 2279 Float_t attProb = fTPCParam->GetAttCoef()*
8c555625 2280 fTPCParam->GetOxyCont()*time; // fraction!
2281
2282 //-----------------------------------------------
2283 // Loop over electrons
2284 //-----------------------------------------------
cc80f89e 2285 Int_t index[3];
2286 index[1]=isec;
73042f01 2287 for(Int_t nel=0;nel<qI;nel++){
8c555625 2288 // skip if electron lost due to the attachment
73042f01 2289 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
94de3818 2290 xyz[0]=tpcHit->X();
2291 xyz[1]=tpcHit->Y();
1705494b 2292 xyz[2]=tpcHit->Z();
2293 //
2294 // protection for the nonphysical avalanche size (10**6 maximum)
2295 //
710dacf5 2296 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
2297 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
cc80f89e 2298 index[0]=1;
2299
2300 TransportElectron(xyz,index); //MI change -august
73042f01 2301 Int_t rowNumber;
cc80f89e 2302 fTPCParam->GetPadRow(xyz,index); //MI change august
73042f01 2303 rowNumber = index[2];
cc80f89e 2304 //transform position to local digit coordinates
2305 //relative to nearest pad row
f03e3423 2306 if ((rowNumber<0)||rowNumber>=fTPCParam->GetNRow(isec)) continue;
2307 Float_t x1,y1;
2308 if (isec <fTPCParam->GetNInnerSector()) {
2309 x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
2310 y1 = fTPCParam->GetYInner(rowNumber);
2311 }
2312 else{
2313 x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
2314 y1 = fTPCParam->GetYOuter(rowNumber);
2315 }
2316
2317 x1=TMath::Abs(x1);
2318 if (y1-0.5 <x1) {
2319 xyz[3]=0.;}
2320 else{
2321 if (y1 -1.<x1){
2322 xyz[3]*=0.5;}
2323 }
73042f01 2324 nofElectrons[rowNumber]++;
8c555625 2325 //----------------------------------
2326 // Expand vector if necessary
2327 //----------------------------------
73042f01 2328 if(nofElectrons[rowNumber]>120){
2329 Int_t range = tracks[rowNumber]->GetNrows();
2330 if((nofElectrons[rowNumber])>(range-1)/4){
cc80f89e 2331
73042f01 2332 tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
fe4da5cc 2333 }
2334 }
2335
de61d5d5 2336 AliTPCFastVector &v = *tracks[rowNumber];
73042f01 2337 Int_t idx = 4*nofElectrons[rowNumber]-3;
de61d5d5 2338 Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
2339 memcpy(position,xyz,4*sizeof(Float_t));
2340
8c555625 2341 } // end of loop over electrons
39c8eb58 2342
2343 tpcHit = (AliTPChit*)NextHit();
8c555625 2344
2345 } // end of loop over hits
2346 } // end of loop over tracks
2347
2348 //
2349 // store remaining track (the last one) if not empty
2350 //
2351
2352 for(i=0;i<nrows;i++){
73042f01 2353 if(nofElectrons[i]>0){
de61d5d5 2354 AliTPCFastVector &v = *tracks[i];
8c555625 2355 v(0) = previousTrack;
73042f01 2356 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2357 row[i]->Add(tracks[i]);
fe4da5cc 2358 }
2359 else{
cc80f89e 2360 delete tracks[i];
2361 tracks[i]=0;
8c555625 2362 }
2363 }
2364
cc80f89e 2365 delete [] tracks;
73042f01 2366 delete [] nofElectrons;
8c555625 2367
8c555625 2368
cc80f89e 2369} // end of MakeSector
8c555625 2370
fe4da5cc 2371
2372//_____________________________________________________________________________
2373void AliTPC::Init()
2374{
2375 //
2376 // Initialise TPC detector after definition of geometry
2377 //
2378 Int_t i;
2379 //
9e1a0ddb 2380 if(fDebug) {
2381 printf("\n%s: ",ClassName());
2382 for(i=0;i<35;i++) printf("*");
2383 printf(" TPC_INIT ");
2384 for(i=0;i<35;i++) printf("*");
2385 printf("\n%s: ",ClassName());
2386 //
2387 for(i=0;i<80;i++) printf("*");
2388 printf("\n");
2389 }
fe4da5cc 2390}
2391
2392//_____________________________________________________________________________
9e1a0ddb 2393void AliTPC::MakeBranch(Option_t* option, const char *file)
fe4da5cc 2394{
2395 //
2396 // Create Tree branches for the TPC.
2397 //
2398 Int_t buffersize = 4000;
2399 char branchname[10];
2400 sprintf(branchname,"%s",GetName());
2401
2ab0c725 2402 AliDetector::MakeBranch(option,file);
fe4da5cc 2403
5cf7bbad 2404 const char *d = strstr(option,"D");
fe4da5cc 2405
73042f01 2406 if (fDigits && gAlice->TreeD() && d) {
9e1a0ddb 2407 MakeBranchInTree(gAlice->TreeD(),
2408 branchname, &fDigits, buffersize, file);
fe4da5cc 2409 }
39c8eb58 2410
792bb11c 2411 if (fHitType>1) MakeBranch2(option,file); // MI change 14.09.2000
fe4da5cc 2412}
2413
2414//_____________________________________________________________________________
2415void AliTPC::ResetDigits()
2416{
2417 //
2418 // Reset number of digits and the digits array for this detector
fe4da5cc 2419 //
2420 fNdigits = 0;
cc80f89e 2421 if (fDigits) fDigits->Clear();
fe4da5cc 2422}
2423
2424//_____________________________________________________________________________
2425void AliTPC::SetSecAL(Int_t sec)
2426{
8c555625 2427 //---------------------------------------------------
fe4da5cc 2428 // Activate/deactivate selection for lower sectors
8c555625 2429 //---------------------------------------------------
2430
2431 //-----------------------------------------------------------------
2432 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2433 //-----------------------------------------------------------------
2434
fe4da5cc 2435 fSecAL = sec;
2436}
2437
2438//_____________________________________________________________________________
2439void AliTPC::SetSecAU(Int_t sec)
2440{
8c555625 2441 //----------------------------------------------------
fe4da5cc 2442 // Activate/deactivate selection for upper sectors
8c555625 2443 //---------------------------------------------------
2444
2445 //-----------------------------------------------------------------
2446 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2447 //-----------------------------------------------------------------
2448
fe4da5cc 2449 fSecAU = sec;
2450}
2451
2452//_____________________________________________________________________________
2453void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
2454{
8c555625 2455 //----------------------------------------
fe4da5cc 2456 // Select active lower sectors
8c555625 2457 //----------------------------------------
2458
2459 //-----------------------------------------------------------------
2460 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2461 //-----------------------------------------------------------------
2462
fe4da5cc 2463 fSecLows[0] = s1;
2464 fSecLows[1] = s2;
2465 fSecLows[2] = s3;
2466 fSecLows[3] = s4;
2467 fSecLows[4] = s5;
2468 fSecLows[5] = s6;
2469}
2470
2471//_____________________________________________________________________________
2472void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
2473 Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
2474 Int_t s11 , Int_t s12)
2475{
8c555625 2476 //--------------------------------
fe4da5cc 2477 // Select active upper sectors
8c555625 2478 //--------------------------------
2479
2480 //-----------------------------------------------------------------
2481 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2482 //-----------------------------------------------------------------
2483
fe4da5cc 2484 fSecUps[0] = s1;
2485 fSecUps[1] = s2;
2486 fSecUps[2] = s3;
2487 fSecUps[3] = s4;
2488 fSecUps[4] = s5;
2489 fSecUps[5] = s6;
2490 fSecUps[6] = s7;
2491 fSecUps[7] = s8;
2492 fSecUps[8] = s9;
2493 fSecUps[9] = s10;
2494 fSecUps[10] = s11;
2495 fSecUps[11] = s12;
2496}
2497
2498//_____________________________________________________________________________
2499void AliTPC::SetSens(Int_t sens)
2500{
8c555625 2501
2502 //-------------------------------------------------------------
2503 // Activates/deactivates the sensitive strips at the center of
2504 // the pad row -- this is for the space-point resolution calculations
2505 //-------------------------------------------------------------
2506
2507 //-----------------------------------------------------------------
2508 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2509 //-----------------------------------------------------------------
2510
fe4da5cc 2511 fSens = sens;
2512}
2b06d5c3 2513
4b0fdcad 2514
73042f01 2515void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2516{
73042f01 2517 // choice of the TPC side
2518
4b0fdcad 2519 fSide = side;
2520
2521}
1283eee5 2522//____________________________________________________________________________
2523void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
2524 Float_t p2,Float_t p3)
2525{
fe4da5cc 2526
73042f01 2527 // gax mixture definition
2528
1283eee5 2529 fNoComp = nc;
2530
2531 fMixtComp[0]=c1;
2532 fMixtComp[1]=c2;
2533 fMixtComp[2]=c3;
2534
2535 fMixtProp[0]=p1;
2536 fMixtProp[1]=p2;
2537 fMixtProp[2]=p3;
2538
2539
cc80f89e 2540}
2541//_____________________________________________________________________________
2542
2543void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2544{
2545 //
2546 // electron transport taking into account:
2547 // 1. diffusion,
2548 // 2.ExB at the wires
2549 // 3. nonisochronity
2550 //
2551 // xyz and index must be already transformed to system 1
2552 //
2553
2554 fTPCParam->Transform1to2(xyz,index);
2555
2556 //add diffusion
2557 Float_t driftl=xyz[2];
2558 if(driftl<0.01) driftl=0.01;
2559 driftl=TMath::Sqrt(driftl);
73042f01 2560 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2561 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2562 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2563 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2564 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2565
2566 // ExB
2567
2568 if (fTPCParam->GetMWPCReadout()==kTRUE){
2569 Float_t x1=xyz[0];
2570 fTPCParam->Transform2to2NearestWire(xyz,index);
2571 Float_t dx=xyz[0]-x1;
2572 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2573 }
2574 //add nonisochronity (not implemented yet)
2575
1283eee5 2576}
fe4da5cc 2577
fe4da5cc 2578ClassImp(AliTPCdigit)
2579
2580//_____________________________________________________________________________
2581AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
2582 AliDigit(tracks)
2583{
2584 //
2585 // Creates a TPC digit object
2586 //
2587 fSector = digits[0];
2588 fPadRow = digits[1];
2589 fPad = digits[2];
2590 fTime = digits[3];
2591 fSignal = digits[4];
2592}
2593
2594
2595ClassImp(AliTPChit)
2596
2597//_____________________________________________________________________________
2598AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2599AliHit(shunt,track)
2600{
2601 //
2602 // Creates a TPC hit object
2603 //
2604 fSector = vol[0];
2605 fPadRow = vol[1];
2606 fX = hits[0];
2607 fY = hits[1];
2608 fZ = hits[2];
2609 fQ = hits[3];
2610}
2611
8c555625 2612
39c8eb58 2613//________________________________________________________________________
792bb11c 2614// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2615
9e1a0ddb 2616void AliTPC::MakeBranch2(Option_t *option,const char *file)
39c8eb58 2617{
2618 //
2619 // Create a new branch in the current Root Tree
2620 // The branch of fHits is automatically split
2621 // MI change 14.09.2000
792bb11c 2622 if (fHitType<2) return;
39c8eb58 2623 char branchname[10];
2624 sprintf(branchname,"%s2",GetName());
2625 //
2626 // Get the pointer to the header
5cf7bbad 2627 const char *cH = strstr(option,"H");
39c8eb58 2628 //
792bb11c 2629 if (fTrackHits && gAlice->TreeH() && cH && fHitType&4) {
2630 // AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2631 // gAlice->TreeH(),fBufferSize,99);
2632 //TBranch * branch =
2633 gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2634 fBufferSize,99);
2635
2636 // gAlice->TreeH()->GetListOfBranches()->Add(branch);
9e1a0ddb 2637 if (GetDebug()>1)
2638 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2639 const char folder [] = "RunMC/Event/Data";
2640 if (GetDebug())
2641 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2642 Publish(folder,&fTrackHits,branchname);
2ab0c725 2643 if (file) {
2644 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2645 TDirectory *wd = gDirectory;
2646 b->SetFile(file);
2647 TIter next( b->GetListOfBranches());
2648 while ((b=(TBranch*)next())) {
9e1a0ddb 2649 b->SetFile(file);
2ab0c725 2650 }
2651 wd->cd();
9e1a0ddb 2652 if (GetDebug()>1)
2653 cout << "Diverting branch " << branchname << " to file " << file << endl;
2ab0c725 2654 }
39c8eb58 2655 }
792bb11c 2656
2657 if (fTrackHitsOld && gAlice->TreeH() && cH && fHitType&2) {
2658 AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
2659 gAlice->TreeH(),fBufferSize,99);
2660 //TBranch * branch = gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2661 // fBufferSize,99);
2662
2663 gAlice->TreeH()->GetListOfBranches()->Add(branch);
2664 if (GetDebug()>1)
2665 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2666 const char folder [] = "RunMC/Event/Data";
2667 if (GetDebug())
2668 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2669 Publish(folder,&fTrackHitsOld,branchname);
2670 if (file) {
2671 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2672 TDirectory *wd = gDirectory;
2673 b->SetFile(file);
2674 TIter next( b->GetListOfBranches());
2675 while ((b=(TBranch*)next())) {
2676 b->SetFile(file);
2677 }
2678 wd->cd();
2679 if (GetDebug()>1)
2680 cout << "Diverting branch " << branchname << " to file " << file << endl;
2681 }
2682 }
39c8eb58 2683}
2684
2685void AliTPC::SetTreeAddress()
2686{
792bb11c 2687 if (fHitType<=1) AliDetector::SetTreeAddress();
2688 if (fHitType>1) SetTreeAddress2();
39c8eb58 2689}
2690
2691void AliTPC::SetTreeAddress2()
2692{
2693 //
2694 // Set branch address for the TrackHits Tree
2695 //
2696 TBranch *branch;
2697 char branchname[20];
2698 sprintf(branchname,"%s2",GetName());
2699 //
2700 // Branch address for hit tree
2701 TTree *treeH = gAlice->TreeH();
792bb11c 2702 if ((treeH)&&(fHitType&4)) {
39c8eb58 2703 branch = treeH->GetBranch(branchname);
2704 if (branch) branch->SetAddress(&fTrackHits);
2705 }
792bb11c 2706 if ((treeH)&&(fHitType&2)) {
2707 branch = treeH->GetBranch(branchname);
2708 if (branch) branch->SetAddress(&fTrackHitsOld);
2709 }
2710
39c8eb58 2711}
2712
2713void AliTPC::FinishPrimary()
2714{
792bb11c 2715 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
2716 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2717}
2718
2719
2720void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2721{
2722 //
2723 // add hit to the list
39c8eb58 2724 Int_t rtrack;
2725 if (fIshunt) {
2726 int primary = gAlice->GetPrimary(track);
2ab0c725 2727 gAlice->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2728 rtrack=primary;
2729 } else {
2730 rtrack=track;
2731 gAlice->FlagTrack(track);
2732 }
2733 //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
2734 //if (hit->fTrack!=rtrack)
2735 // cout<<"bad track number\n";
792bb11c 2736 if (fTrackHits && fHitType&4)
39c8eb58 2737 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
2738 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2739 if (fTrackHitsOld &&fHitType&2 )
2740 fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
2741 hits[1],hits[2],(Int_t)hits[3]);
2742
39c8eb58 2743}
2744
2745void AliTPC::ResetHits()
2746{
2747 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2748 if (fHitType>1) ResetHits2();
39c8eb58 2749}
2750
2751void AliTPC::ResetHits2()
2752{
2753 //
2754 //reset hits
792bb11c 2755 if (fTrackHits && fHitType&4) fTrackHits->Clear();
2756 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
2757
39c8eb58 2758}
2759
2760AliHit* AliTPC::FirstHit(Int_t track)
2761{
792bb11c 2762 if (fHitType>1) return FirstHit2(track);
39c8eb58 2763 return AliDetector::FirstHit(track);
2764}
2765AliHit* AliTPC::NextHit()
2766{
792bb11c 2767 if (fHitType>1) return NextHit2();
2768
39c8eb58 2769 return AliDetector::NextHit();
2770}
2771
2772AliHit* AliTPC::FirstHit2(Int_t track)
2773{
2774 //
2775 // Initialise the hit iterator
2776 // Return the address of the first hit for track
2777 // If track>=0 the track is read from disk
2778 // while if track<0 the first hit of the current
2779 // track is returned
2780 //
2781 if(track>=0) {
2782 gAlice->ResetHits();
2783 gAlice->TreeH()->GetEvent(track);
2784 }
2785 //
792bb11c 2786 if (fTrackHits && fHitType&4) {
39c8eb58 2787 fTrackHits->First();
2788 return fTrackHits->GetHit();
2789 }
792bb11c 2790 if (fTrackHitsOld && fHitType&2) {
2791 fTrackHitsOld->First();
2792 return fTrackHitsOld->GetHit();
2793 }
2794
39c8eb58 2795 else return 0;
2796}
2797
2798AliHit* AliTPC::NextHit2()
2799{
2800 //
2801 //Return the next hit for the current track
2802
792bb11c 2803
2804 if (fTrackHitsOld && fHitType&2) {
2805 fTrackHitsOld->Next();
2806 return fTrackHitsOld->GetHit();
2807 }
39c8eb58 2808 if (fTrackHits) {
2809 fTrackHits->Next();
2810 return fTrackHits->GetHit();
2811 }
2812 else
2813 return 0;
2814}
2815
2816void AliTPC::LoadPoints(Int_t)
2817{
2818 //
2819 Int_t a = 0;
f2e8b846 2820 /* if(fHitType==1) return AliDetector::LoadPoints(a);
39c8eb58 2821 LoadPoints2(a);
f2e8b846 2822 */
2823 if(fHitType==1) AliDetector::LoadPoints(a);
2824 else LoadPoints2(a);
2825
39c8eb58 2826 // LoadPoints3(a);
2827
2828}
2829
2830
2831void AliTPC::RemapTrackHitIDs(Int_t *map)
2832{
2833 if (!fTrackHits) return;
39c8eb58 2834
792bb11c 2835 if (fTrackHitsOld && fHitType&2){
2836 AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2837 for (UInt_t i=0;i<arr->GetSize();i++){
2838 AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2839 info->fTrackID = map[info->fTrackID];
2840 }
2841 }
2842 if (fTrackHitsOld && fHitType&4){
2843 TClonesArray * arr = fTrackHits->GetArray();;
2844 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2845 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2846 info->fTrackID = map[info->fTrackID];
2847 }
2848 }
39c8eb58 2849}
2850
792bb11c 2851Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2852{
2853 //return bool information - is track in given volume
2854 //load only part of the track information
2855 //return true if current track is in volume
2856 //
2857 // return kTRUE;
2858 if (fTrackHitsOld && fHitType&2) {
2859 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
2860 br->GetEvent(track);
2861 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2862 for (UInt_t j=0;j<ar->GetSize();j++){
2863 if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2864 }
2865 }
2866
2867 if (fTrackHits && fHitType&4) {
2868 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
2869 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
2870 br2->GetEvent(track);
2871 br1->GetEvent(track);
2872 Int_t *volumes = fTrackHits->GetVolumes();
2873 Int_t nvolumes = fTrackHits->GetNVolumes();
2874 if (!volumes && nvolumes>0) {
2875 printf("Problematic track\t%d\t%d",track,nvolumes);
2876 return kFALSE;
2877 }
2878 for (Int_t j=0;j<nvolumes; j++)
2879 if (volumes[j]==id) return kTRUE;
2880 }
2881
2882 if (fHitType&1) {
2883 TBranch * br = gAlice->TreeH()->GetBranch("fSector");
2884 br->GetEvent(track);
2885 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2886 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2887 }
2888 }
2889 return kFALSE;
2890
2891}
39c8eb58 2892
2893//_____________________________________________________________________________
2894void AliTPC::LoadPoints2(Int_t)
2895{
2896 //
2897 // Store x, y, z of all hits in memory
2898 //
792bb11c 2899 if (fTrackHits == 0 && fTrackHitsOld==0) return;
39c8eb58 2900 //
792bb11c 2901 Int_t nhits =0;
2902 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
2903 if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
2904
39c8eb58 2905 if (nhits == 0) return;
2906 Int_t tracks = gAlice->GetNtrack();
2907 if (fPoints == 0) fPoints = new TObjArray(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);
39c8eb58 2927 while (ahit){
39c8eb58 2928 trk=ahit->GetTrack();
2929 if(ntrk[trk]==limi[trk]) {
2930 //
2931 // Initialise a new track
2932 fp=new Float_t[3*(limi[trk]+chunk)];
2933 if(coor[trk]) {
2934 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2935 delete [] coor[trk];
2936 }
2937 limi[trk]+=chunk;
2938 coor[trk] = fp;
2939 } else {
2940 fp = coor[trk];
2941 }
2942 fp[3*ntrk[trk] ] = ahit->X();
2943 fp[3*ntrk[trk]+1] = ahit->Y();
2944 fp[3*ntrk[trk]+2] = ahit->Z();
2945 ntrk[trk]++;
2946 ahit = NextHit2();
2947 }
792bb11c 2948
2949
2950
39c8eb58 2951 //
2952 for(trk=0; trk<tracks; ++trk) {
2953 if(ntrk[trk]) {
2954 points = new AliPoints();
2955 points->SetMarkerColor(GetMarkerColor());
2956 points->SetMarkerSize(GetMarkerSize());
2957 points->SetDetector(this);
2958 points->SetParticle(trk);
2959 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
2960 fPoints->AddAt(points,trk);
2961 delete [] coor[trk];
2962 coor[trk]=0;
2963 }
2964 }
2965 delete [] coor;
2966 delete [] ntrk;
2967 delete [] limi;
2968}
2969
2970
2971//_____________________________________________________________________________
2972void AliTPC::LoadPoints3(Int_t)
2973{
2974 //
2975 // Store x, y, z of all hits in memory
2976 // - only intersection point with pad row
2977 if (fTrackHits == 0) return;
2978 //
2979 Int_t nhits = fTrackHits->GetEntriesFast();
2980 if (nhits == 0) return;
2981 Int_t tracks = gAlice->GetNtrack();
2982 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
2983 fPoints->Expand(2*tracks);
2984 AliHit *ahit;
2985 //
2986 Int_t *ntrk=new Int_t[tracks];
2987 Int_t *limi=new Int_t[tracks];
2988 Float_t **coor=new Float_t*[tracks];
2989 for(Int_t i=0;i<tracks;i++) {
2990 ntrk[i]=0;
2991 coor[i]=0;
2992 limi[i]=0;
2993 }
2994 //
2995 AliPoints *points = 0;
2996 Float_t *fp=0;
2997 Int_t trk;
2998 Int_t chunk=nhits/4+1;
2999 //
3000 // Loop over all the hits and store their position
3001 //
3002 ahit = FirstHit2(-1);
3003 //for (Int_t hit=0;hit<nhits;hit++) {
3004
3005 Int_t lastrow = -1;
3006 while (ahit){
3007 // ahit = (AliHit*)fHits->UncheckedAt(hit);
3008 trk=ahit->GetTrack();
3009 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
3010 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
3011 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
3012 if (currentrow!=lastrow){
3013 lastrow = currentrow;
3014 //later calculate intersection point
3015 if(ntrk[trk]==limi[trk]) {
3016 //
3017 // Initialise a new track
3018 fp=new Float_t[3*(limi[trk]+chunk)];
3019 if(coor[trk]) {
3020 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
3021 delete [] coor[trk];
3022 }
3023 limi[trk]+=chunk;
3024 coor[trk] = fp;
3025 } else {
3026 fp = coor[trk];
3027 }
3028 fp[3*ntrk[trk] ] = ahit->X();
3029 fp[3*ntrk[trk]+1] = ahit->Y();
3030 fp[3*ntrk[trk]+2] = ahit->Z();
3031 ntrk[trk]++;
3032 }
3033 ahit = NextHit2();
3034 }
3035
3036 //
3037 for(trk=0; trk<tracks; ++trk) {
3038 if(ntrk[trk]) {
3039 points = new AliPoints();
3040 points->SetMarkerColor(GetMarkerColor()+1);
3041 points->SetMarkerStyle(5);
3042 points->SetMarkerSize(0.2);
3043 points->SetDetector(this);
3044 points->SetParticle(trk);
3045 // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
3046 points->SetPolyMarker(ntrk[trk],coor[trk],30);
3047 fPoints->AddAt(points,tracks+trk);
3048 delete [] coor[trk];
3049 coor[trk]=0;
3050 }
3051 }
3052 delete [] coor;
3053 delete [] ntrk;
3054 delete [] limi;
3055}
3056
3057
3058
3059void AliTPC::FindTrackHitsIntersection(TClonesArray * arr)
3060{
3061
3062 //
3063 //fill clones array with intersection of current point with the
3064 //middle of the row
3065 Int_t sector;
3066 Int_t ipart;
3067
3068 const Int_t kcmaxhits=30000;
de61d5d5 3069 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
3070 AliTPCFastVector & xxx = *xxxx;
39c8eb58 3071 Int_t maxhits = kcmaxhits;
3072
3073 //
3074 AliTPChit * tpcHit=0;
3075 tpcHit = (AliTPChit*)FirstHit2(-1);
3076 Int_t currentIndex=0;
3077 Int_t lastrow=-1; //last writen row
3078
3079 while (tpcHit){
3080 if (tpcHit==0) continue;
3081 sector=tpcHit->fSector; // sector number
3082 ipart=tpcHit->Track();
3083
3084 //find row number
3085
3086 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
3087 Int_t index[3]={1,sector,0};
3088 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
3089 if (currentrow<0) continue;
3090 if (lastrow<0) lastrow=currentrow;
3091 if (currentrow==lastrow){
3092 if ( currentIndex>=maxhits){
3093 maxhits+=kcmaxhits;
3094 xxx.ResizeTo(4*maxhits);
3095 }
3096 xxx(currentIndex*4)=x[0];
3097 xxx(currentIndex*4+1)=x[1];
3098 xxx(currentIndex*4+2)=x[2];
3099 xxx(currentIndex*4+3)=tpcHit->fQ;
3100 currentIndex++;
3101 }
3102 else
3103 if (currentIndex>2){
3104 Float_t sumx=0;
3105 Float_t sumx2=0;
3106 Float_t sumx3=0;
3107 Float_t sumx4=0;
3108 Float_t sumy=0;
3109 Float_t sumxy=0;
3110 Float_t sumx2y=0;
3111 Float_t sumz=0;
3112 Float_t sumxz=0;
3113 Float_t sumx2z=0;
3114 Float_t sumq=0;
3115 for (Int_t index=0;index<currentIndex;index++){
3116 Float_t x,x2,x3,x4;
3117 x=x2=x3=x4=xxx(index*4);
3118 x2*=x;
3119 x3*=x2;
3120 x4*=x3;
3121 sumx+=x;
3122 sumx2+=x2;
3123 sumx3+=x3;
3124 sumx4+=x4;
3125 sumy+=xxx(index*4+1);
3126 sumxy+=xxx(index*4+1)*x;
3127 sumx2y+=xxx(index*4+1)*x2;
3128 sumz+=xxx(index*4+2);
3129 sumxz+=xxx(index*4+2)*x;
3130 sumx2z+=xxx(index*4+2)*x2;
3131 sumq+=xxx(index*4+3);
3132 }
3133 Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2;
3134 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
3135 sumx2*(sumx*sumx3-sumx2*sumx2);
3136
3137 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
3138 sumx2*(sumxy*sumx3-sumx2y*sumx2);
3139 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
3140 sumx2*(sumxz*sumx3-sumx2z*sumx2);
3141
3142 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
3143 sumx2*(sumx*sumx2y-sumx2*sumxy);
3144 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
3145 sumx2*(sumx*sumx2z-sumx2*sumxz);
3146
3147 Float_t y=detay/det+centralPad;
3148 Float_t z=detaz/det;
3149 Float_t by=detby/det; //y angle
3150 Float_t bz=detbz/det; //z angle
3151 sumy/=Float_t(currentIndex);
3152 sumz/=Float_t(currentIndex);
3153
3154 AliComplexCluster cl;
3155 cl.fX=z;
3156 cl.fY=y;
3157 cl.fQ=sumq;
3158 cl.fSigmaX2=bz;
3159 cl.fSigmaY2=by;
3160 cl.fTracks[0]=ipart;
3161
3162 AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
3163 if (row!=0) row->InsertCluster(&cl);
3164 currentIndex=0;
3165 lastrow=currentrow;
3166 } //end of calculating cluster for given row
3167
3168 } // end of loop over hits
3169 xxxx->Delete();
39c8eb58 3170
3171}
afc42102 3172//_______________________________________________________________________________
a62d28a2 3173void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
afc42102 3174{
a62d28a2 3175 // produces rec points from digits and writes them on the root file
3176 // AliTPCclusters.root
3177
3178 TDirectory *cwd = gDirectory;
3179
3180
7a09f434 3181 AliTPCParamSR *dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60");
3182 if(dig){
3183 printf("You are running 2 pad-length geom hits with 3 pad-length geom digits\n");
3184 delete dig;
3185 dig = new AliTPCParamSR();
3186 }
3187 else
3188 {
3189 dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
3190 }
3191 if(!dig){
3192 printf("No TPC parameters found\n");
3193 exit(3);
3194 }
3195
a62d28a2 3196 SetParam(dig);
3197 cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
3198 TFile *out;
3199 if(!gSystem->Getenv("CONFIG_FILE")){
3200 out=TFile::Open("AliTPCclusters.root","recreate");
3201 }
3202 else {
3203 const char *tmp1;
3204 const char *tmp2;
3205 char tmp3[80];
3206 tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
3207 tmp2=gSystem->Getenv("CONFIG_OUTDIR");
3208 sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
3209 out=TFile::Open(tmp3,"recreate");
3210 }
3211
3212 TStopwatch timer;
3213 cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
3214 timer.Start();
3215 cwd->cd();
3216 for(Int_t iev=firstevent;iev<lastevent+1;iev++){
3217
3218 printf("Processing event %d\n",iev);
3219 Digits2Clusters(out,iev);
3220 }
3221 cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
3222 timer.Stop();
3223 timer.Print();
3224 out->Close();
3225 cwd->cd();
3226
3227
afc42102 3228}