Changes due to the coding conventions
[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
88cb7938 16/* $Id$ */
4c039060 17
fe4da5cc 18///////////////////////////////////////////////////////////////////////////////
19// //
20// Time Projection Chamber //
21// This class contains the basic functions for the Time Projection Chamber //
22// detector. Functions specific to one particular geometry are //
23// contained in the derived classes //
24// //
25//Begin_Html
26/*
1439f98e 27<img src="picts/AliTPCClass.gif">
fe4da5cc 28*/
29//End_Html
30// //
8c555625 31// //
fe4da5cc 32///////////////////////////////////////////////////////////////////////////////
33
73042f01 34//
35
88cb7938 36#include <Riostream.h>
37#include <stdlib.h>
38
39#include <TFile.h>
40#include <TGeometry.h>
41#include <TInterpreter.h>
fe4da5cc 42#include <TMath.h>
8c555625 43#include <TMatrix.h>
fe4da5cc 44#include <TNode.h>
fe4da5cc 45#include <TObjectTable.h>
88cb7938 46#include <TParticle.h>
afc42102 47#include <TROOT.h>
88cb7938 48#include <TRandom.h>
afc42102 49#include <TSystem.h>
88cb7938 50#include <TTUBS.h>
51#include <TTree.h>
52#include <TVector.h>
53#include <TVirtualMC.h>
2a336e15 54#include <TString.h>
55#include <TF2.h>
cc80f89e 56
88cb7938 57#include "AliArrayBranch.h"
58#include "AliClusters.h"
59#include "AliComplexCluster.h"
cc80f89e 60#include "AliDigits.h"
88cb7938 61#include "AliMagF.h"
62#include "AliPoints.h"
63#include "AliRun.h"
64#include "AliRunLoader.h"
cc80f89e 65#include "AliSimDigits.h"
88cb7938 66#include "AliTPC.h"
67#include "AliTPC.h"
68#include "AliTPCClustersArray.h"
69#include "AliTPCClustersRow.h"
70#include "AliTPCDigitsArray.h"
71#include "AliTPCLoader.h"
72#include "AliTPCPRF2D.h"
73#include "AliTPCParamSR.h"
74#include "AliTPCRF1D.h"
39c8eb58 75#include "AliTPCTrackHits.h"
792bb11c 76#include "AliTPCTrackHitsV2.h"
73042f01 77#include "AliTPCcluster.h"
88cb7938 78#include "AliTrackReference.h"
5d12ce38 79#include "AliMC.h"
85a5290f 80#include "AliTPCDigitizer.h"
6bb8e9b9 81#include "AliTPCclustererMI.h"
82#include "AliTPCtrackerMI.h"
596a855f 83#include "AliTPCpidESD.h"
39c8eb58 84
85
fe4da5cc 86ClassImp(AliTPC)
87
88//_____________________________________________________________________________
de61d5d5 89// helper class for fast matrix and vector manipulation - no range checking
90// origin - Marian Ivanov
91
92class AliTPCFastMatrix : public TMatrix {
93public :
9bdd974b 94 AliTPCFastMatrix(Int_t rowlwb, Int_t rowupb, Int_t collwb, Int_t colupb);
6bb8e9b9 95#if ROOT_VERSION_CODE >= ROOT_VERSION(4,0,1)
96 Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return fElements[(rown-fRowLwb)*fNcols+(coln-fColLwb)];} //fast acces
97 Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return fElements[(rown-fRowLwb)*fNcols+(coln-fColLwb)];} //fast acces
98#else
9bdd974b 99 Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
100 Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
6bb8e9b9 101#endif
de61d5d5 102};
103
9bdd974b 104AliTPCFastMatrix::AliTPCFastMatrix(Int_t rowlwb, Int_t rowupb, Int_t collwb, Int_t colupb):
105 TMatrix(rowlwb, rowupb,collwb,colupb)
de61d5d5 106 {
107 };
108//_____________________________________________________________________________
109class AliTPCFastVector : public TVector {
110public :
111 AliTPCFastVector(Int_t size);
b6e0d3fe 112 virtual ~AliTPCFastVector(){;}
9bdd974b 113 Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
b6e0d3fe 114
de61d5d5 115};
116
117AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
118};
119
120//_____________________________________________________________________________
fe4da5cc 121AliTPC::AliTPC()
122{
123 //
124 // Default constructor
125 //
126 fIshunt = 0;
fe4da5cc 127 fHits = 0;
128 fDigits = 0;
fe4da5cc 129 fNsectors = 0;
cc80f89e 130 fDigitsArray = 0;
131 fClustersArray = 0;
afc42102 132 fDefaults = 0;
792bb11c 133 fTrackHits = 0;
134 fTrackHitsOld = 0;
da33556f 135 fHitType = 2; //default CONTAINERS - based on ROOT structure
407ff276 136 fTPCParam = 0;
137 fNoiseTable = 0;
792bb11c 138 fActiveSectors =0;
407ff276 139
fe4da5cc 140}
141
142//_____________________________________________________________________________
143AliTPC::AliTPC(const char *name, const char *title)
144 : AliDetector(name,title)
145{
146 //
147 // Standard constructor
148 //
149
150 //
151 // Initialise arrays of hits and digits
152 fHits = new TClonesArray("AliTPChit", 176);
5d12ce38 153 gAlice->GetMCApp()->AddHitList(fHits);
cc80f89e 154 fDigitsArray = 0;
155 fClustersArray= 0;
afc42102 156 fDefaults = 0;
fe4da5cc 157 //
792bb11c 158 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 159 fTrackHits->SetHitPrecision(0.002);
160 fTrackHits->SetStepPrecision(0.003);
792bb11c 161 fTrackHits->SetMaxDistance(100);
162
163 fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
164 fTrackHitsOld->SetHitPrecision(0.002);
165 fTrackHitsOld->SetStepPrecision(0.003);
166 fTrackHitsOld->SetMaxDistance(100);
167
407ff276 168 fNoiseTable =0;
39c8eb58 169
da33556f 170 fHitType = 2;
792bb11c 171 fActiveSectors = 0;
39c8eb58 172 //
fe4da5cc 173 // Initialise counters
cc80f89e 174 fNsectors = 0;
cc80f89e 175
fe4da5cc 176 //
177 fIshunt = 0;
178 //
179 // Initialise color attributes
180 SetMarkerColor(kYellow);
73042f01 181
182 //
183 // Set TPC parameters
184 //
185
afc42102 186
187 if (!strcmp(title,"Default")) {
188 fTPCParam = new AliTPCParamSR;
73042f01 189 } else {
190 cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
191 fTPCParam=0;
192 }
193
fe4da5cc 194}
195
196//_____________________________________________________________________________
9bdd974b 197AliTPC::AliTPC(const AliTPC& t):AliDetector(t){
198 //
199 // dummy copy constructor
200 //
201}
fe4da5cc 202AliTPC::~AliTPC()
203{
204 //
205 // TPC destructor
206 //
73042f01 207
fe4da5cc 208 fIshunt = 0;
209 delete fHits;
210 delete fDigits;
73042f01 211 delete fTPCParam;
39c8eb58 212 delete fTrackHits; //MI 15.09.2000
792bb11c 213 delete fTrackHitsOld; //MI 10.12.2001
407ff276 214 if (fNoiseTable) delete [] fNoiseTable;
215
fe4da5cc 216}
217
218//_____________________________________________________________________________
fe4da5cc 219void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
220{
221 //
222 // Add a hit to the list
223 //
39c8eb58 224 // TClonesArray &lhits = *fHits;
225 // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
226 if (fHitType&1){
227 TClonesArray &lhits = *fHits;
228 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
229 }
792bb11c 230 if (fHitType>1)
39c8eb58 231 AddHit2(track,vol,hits);
fe4da5cc 232}
88cb7938 233
fe4da5cc 234//_____________________________________________________________________________
fe4da5cc 235void AliTPC::BuildGeometry()
236{
cc80f89e 237
fe4da5cc 238 //
239 // Build TPC ROOT TNode geometry for the event display
240 //
73042f01 241 TNode *nNode, *nTop;
fe4da5cc 242 TTUBS *tubs;
243 Int_t i;
244 const int kColorTPC=19;
1283eee5 245 char name[5], title[25];
fe4da5cc 246 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 247 const Double_t kRaddeg=180./TMath::Pi();
248
1283eee5 249
73042f01 250 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
251 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 252
73042f01 253 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
254 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 255
256 Int_t nLo = fTPCParam->GetNInnerSector()/2;
257 Int_t nHi = fTPCParam->GetNOuterSector()/2;
258
73042f01 259 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
260 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
261 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
262 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 263
264
73042f01 265 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
266 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 267
268 Double_t rl,ru;
269
270
fe4da5cc 271 //
272 // Get ALICE top node
fe4da5cc 273 //
1283eee5 274
73042f01 275 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 276
277 // inner sectors
278
cc80f89e 279 rl = fTPCParam->GetInnerRadiusLow();
280 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 281
282
fe4da5cc 283 for(i=0;i<nLo;i++) {
284 sprintf(name,"LS%2.2d",i);
1283eee5 285 name[4]='\0';
286 sprintf(title,"TPC low sector %3d",i);
287 title[24]='\0';
288
73042f01 289 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
290 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 291 tubs->SetNumberOfDivisions(1);
73042f01 292 nTop->cd();
293 nNode = new TNode(name,title,name,0,0,0,"");
294 nNode->SetLineColor(kColorTPC);
295 fNodes->Add(nNode);
fe4da5cc 296 }
1283eee5 297
fe4da5cc 298 // Outer sectors
1283eee5 299
cc80f89e 300 rl = fTPCParam->GetOuterRadiusLow();
301 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 302
fe4da5cc 303 for(i=0;i<nHi;i++) {
304 sprintf(name,"US%2.2d",i);
1283eee5 305 name[4]='\0';
fe4da5cc 306 sprintf(title,"TPC upper sector %d",i);
1283eee5 307 title[24]='\0';
73042f01 308 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
309 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 310 tubs->SetNumberOfDivisions(1);
73042f01 311 nTop->cd();
312 nNode = new TNode(name,title,name,0,0,0,"");
313 nNode->SetLineColor(kColorTPC);
314 fNodes->Add(nNode);
fe4da5cc 315 }
cc80f89e 316
73042f01 317}
1283eee5 318
fe4da5cc 319//_____________________________________________________________________________
9bdd974b 320Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t ) const
fe4da5cc 321{
322 //
323 // Calculate distance from TPC to mouse on the display
324 // Dummy procedure
325 //
326 return 9999;
327}
328
9bdd974b 329void AliTPC::Clusters2Tracks() const
88cb7938 330 {
3c0f9266 331 //-----------------------------------------------------------------
332 // This is a track finder.
3c0f9266 333 //-----------------------------------------------------------------
c630aafd 334 Error("Clusters2Tracks",
335 "Dummy function ! Call AliTPCtracker::Clusters2Tracks(...) instead !");
88cb7938 336 }
fe4da5cc 337
596a855f 338
339//_____________________________________________________________________________
fe4da5cc 340void AliTPC::CreateMaterials()
341{
8c555625 342 //-----------------------------------------------
37831078 343 // Create Materials for for TPC simulations
8c555625 344 //-----------------------------------------------
345
346 //-----------------------------------------------------------------
347 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
348 //-----------------------------------------------------------------
1283eee5 349
73042f01 350 Int_t iSXFLD=gAlice->Field()->Integ();
351 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 352
353 Float_t amat[5]; // atomic numbers
354 Float_t zmat[5]; // z
355 Float_t wmat[5]; // proportions
356
357 Float_t density;
37831078 358 Float_t apure[2];
1283eee5 359
1283eee5 360
37831078 361 //***************** Gases *************************
362
363 //-------------------------------------------------
1283eee5 364 // pure gases
37831078 365 //-------------------------------------------------
1283eee5 366
37831078 367 // Neon
1283eee5 368
369
37831078 370 amat[0]= 20.18;
371 zmat[0]= 10.;
1283eee5 372 density = 0.0009;
37831078 373
374 apure[0]=amat[0];
1283eee5 375
37831078 376 AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
1283eee5 377
37831078 378 // Argon
1283eee5 379
37831078 380 amat[0]= 39.948;
381 zmat[0]= 18.;
382 density = 0.001782;
1283eee5 383
37831078 384 apure[1]=amat[0];
1283eee5 385
37831078 386 AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
387
1283eee5 388
389 //--------------------------------------------------------------
390 // gases - compounds
391 //--------------------------------------------------------------
392
393 Float_t amol[3];
394
37831078 395 // CO2
1283eee5 396
397 amat[0]=12.011;
398 amat[1]=15.9994;
399
400 zmat[0]=6.;
401 zmat[1]=8.;
402
403 wmat[0]=1.;
404 wmat[1]=2.;
405
406 density=0.001977;
407
408 amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
409
410 AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
37831078 411
1283eee5 412 // CF4
413
414 amat[0]=12.011;
415 amat[1]=18.998;
416
417 zmat[0]=6.;
418 zmat[1]=9.;
419
420 wmat[0]=1.;
421 wmat[1]=4.;
422
423 density=0.003034;
424
425 amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
426
427 AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
428
37831078 429
1283eee5 430 // CH4
431
432 amat[0]=12.011;
433 amat[1]=1.;
434
435 zmat[0]=6.;
436 zmat[1]=1.;
437
438 wmat[0]=1.;
439 wmat[1]=4.;
440
441 density=0.000717;
442
443 amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
444
445 AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
446
447 //----------------------------------------------------------------
448 // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
449 //----------------------------------------------------------------
37831078 450
00d6d986 451 char namate[21]="";
1283eee5 452 density = 0.;
453 Float_t am=0;
454 Int_t nc;
9bdd974b 455 Float_t rho,absl,x0,buf[1];
1283eee5 456 Int_t nbuf;
37831078 457 Float_t a,z;
1283eee5 458
459 for(nc = 0;nc<fNoComp;nc++)
460 {
461
462 // retrive material constants
463
9bdd974b 464 gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,x0,absl,buf,nbuf);
1283eee5 465
466 amat[nc] = a;
467 zmat[nc] = z;
468
469 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
470
37831078 471 am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
1283eee5 472 density += fMixtProp[nc]*rho; // density of the mixture
473
474 }
475
476 // mixture proportions by weight!
477
478 for(nc = 0;nc<fNoComp;nc++)
479 {
480
481 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
482
37831078 483 wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
484 apure[nnc] : amol[nnc])/am;
485
486 }
487
488 // Drift gases 1 - nonsensitive, 2 - sensitive
1283eee5 489
1283eee5 490 AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
491 AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
1283eee5 492
1283eee5 493
37831078 494 // Air
495
496 amat[0] = 14.61;
497 zmat[0] = 7.3;
498 density = 0.001205;
1283eee5 499
37831078 500 AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
1283eee5 501
1283eee5 502
503 //----------------------------------------------------------------------
504 // solid materials
505 //----------------------------------------------------------------------
506
1283eee5 507
37831078 508 // Kevlar C14H22O2N2
1283eee5 509
37831078 510 amat[0] = 12.011;
511 amat[1] = 1.;
512 amat[2] = 15.999;
513 amat[3] = 14.006;
1283eee5 514
37831078 515 zmat[0] = 6.;
516 zmat[1] = 1.;
517 zmat[2] = 8.;
518 zmat[3] = 7.;
519
520 wmat[0] = 14.;
521 wmat[1] = 22.;
522 wmat[2] = 2.;
523 wmat[3] = 2.;
524
525 density = 1.45;
526
527 AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
528
529 // NOMEX
1283eee5 530
37831078 531 amat[0] = 12.011;
532 amat[1] = 1.;
533 amat[2] = 15.999;
534 amat[3] = 14.006;
535
536 zmat[0] = 6.;
537 zmat[1] = 1.;
538 zmat[2] = 8.;
539 zmat[3] = 7.;
540
541 wmat[0] = 14.;
542 wmat[1] = 22.;
543 wmat[2] = 2.;
544 wmat[3] = 2.;
545
546 density = 0.03;
1283eee5 547
fe4da5cc 548
37831078 549 AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
550
551 // Makrolon C16H18O3
552
553 amat[0] = 12.011;
554 amat[1] = 1.;
555 amat[2] = 15.999;
1283eee5 556
37831078 557 zmat[0] = 6.;
558 zmat[1] = 1.;
559 zmat[2] = 8.;
560
561 wmat[0] = 16.;
562 wmat[1] = 18.;
563 wmat[2] = 3.;
564
565 density = 1.2;
566
567 AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
568
1283eee5 569 // Mylar C5H4O2
570
571 amat[0]=12.011;
572 amat[1]=1.;
573 amat[2]=15.9994;
574
575 zmat[0]=6.;
576 zmat[1]=1.;
577 zmat[2]=8.;
578
579 wmat[0]=5.;
580 wmat[1]=4.;
581 wmat[2]=2.;
582
583 density = 1.39;
fe4da5cc 584
37831078 585 AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
1283eee5 586
ba1d05f9 587 // SiO2 - used later for the glass fiber
1283eee5 588
37831078 589 amat[0]=28.086;
590 amat[1]=15.9994;
1283eee5 591
37831078 592 zmat[0]=14.;
593 zmat[1]=8.;
1283eee5 594
37831078 595 wmat[0]=1.;
596 wmat[1]=2.;
1283eee5 597
1283eee5 598
ba1d05f9 599 AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
1283eee5 600
37831078 601 // Al
1283eee5 602
37831078 603 amat[0] = 26.98;
604 zmat[0] = 13.;
1283eee5 605
37831078 606 density = 2.7;
1283eee5 607
37831078 608 AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 609
37831078 610 // Si
1283eee5 611
37831078 612 amat[0] = 28.086;
9a3667bd 613 zmat[0] = 14.;
1283eee5 614
37831078 615 density = 2.33;
1283eee5 616
37831078 617 AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 618
37831078 619 // Cu
1283eee5 620
37831078 621 amat[0] = 63.546;
622 zmat[0] = 29.;
1283eee5 623
37831078 624 density = 8.96;
1283eee5 625
37831078 626 AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 627
37831078 628 // Tedlar C2H3F
1283eee5 629
37831078 630 amat[0] = 12.011;
631 amat[1] = 1.;
632 amat[2] = 18.998;
1283eee5 633
37831078 634 zmat[0] = 6.;
635 zmat[1] = 1.;
636 zmat[2] = 9.;
1283eee5 637
37831078 638 wmat[0] = 2.;
639 wmat[1] = 3.;
640 wmat[2] = 1.;
1283eee5 641
37831078 642 density = 1.71;
1283eee5 643
37831078 644 AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
1283eee5 645
1283eee5 646
37831078 647 // Plexiglas C5H8O2
1283eee5 648
37831078 649 amat[0]=12.011;
650 amat[1]=1.;
651 amat[2]=15.9994;
1283eee5 652
37831078 653 zmat[0]=6.;
654 zmat[1]=1.;
655 zmat[2]=8.;
1283eee5 656
37831078 657 wmat[0]=5.;
658 wmat[1]=8.;
659 wmat[2]=2.;
1283eee5 660
37831078 661 density=1.18;
1283eee5 662
37831078 663 AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
1283eee5 664
ba1d05f9 665 // Epoxy - C14 H20 O3
1283eee5 666
5a28a08f 667
668 amat[0]=12.011;
669 amat[1]=1.;
670 amat[2]=15.9994;
671
672 zmat[0]=6.;
673 zmat[1]=1.;
674 zmat[2]=8.;
675
ba1d05f9 676 wmat[0]=14.;
677 wmat[1]=20.;
5a28a08f 678 wmat[2]=3.;
679
ba1d05f9 680 density=1.25;
5a28a08f 681
682 AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
37831078 683
ba1d05f9 684 // Carbon
685
686 amat[0]=12.011;
687 zmat[0]=6.;
688 density= 2.265;
689
690 AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
691
692 // get epoxy
693
9bdd974b 694 gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,x0,absl,buf,nbuf);
ba1d05f9 695
696 // Carbon fiber
697
698 wmat[0]=0.644; // by weight!
699 wmat[1]=0.356;
700
701 density=0.5*(1.25+2.265);
702
703 AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
704
705 // get SiO2
706
9bdd974b 707 gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,x0,absl,buf,nbuf);
ba1d05f9 708
709 wmat[0]=0.725; // by weight!
710 wmat[1]=0.275;
711
712 density=1.7;
713
714 AliMixture(39,"G10",amat,zmat,density,2,wmat);
715
716
717
718
37831078 719 //----------------------------------------------------------
720 // tracking media for gases
721 //----------------------------------------------------------
722
723 AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
724 AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
725 AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
726 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
727
728 //-----------------------------------------------------------
729 // tracking media for solids
730 //-----------------------------------------------------------
731
732 AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
733 AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
734 AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
735 AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
736 AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
737 AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
738 AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
739 AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
740 AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
741 AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
5a28a08f 742 AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
ba1d05f9 743 AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 744
fe4da5cc 745}
746
407ff276 747void AliTPC::GenerNoise(Int_t tablesize)
748{
749 //
750 //Generate table with noise
751 //
752 if (fTPCParam==0) {
753 // error message
754 fNoiseDepth=0;
755 return;
756 }
757 if (fNoiseTable) delete[] fNoiseTable;
758 fNoiseTable = new Float_t[tablesize];
759 fNoiseDepth = tablesize;
760 fCurrentNoise =0; //!index of the noise in the noise table
761
762 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
763 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
764}
765
766Float_t AliTPC::GetNoise()
767{
768 // get noise from table
769 // if ((fCurrentNoise%10)==0)
770 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
771 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
772 return fNoiseTable[fCurrentNoise++];
773 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
774}
775
776
9bdd974b 777Bool_t AliTPC::IsSectorActive(Int_t sec) const
792bb11c 778{
779 //
780 // check if the sector is active
781 if (!fActiveSectors) return kTRUE;
782 else return fActiveSectors[sec];
783}
784
785void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
786{
787 // activate interesting sectors
88cb7938 788 SetTreeAddress();//just for security
792bb11c 789 if (fActiveSectors) delete [] fActiveSectors;
790 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
791 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
792 for (Int_t i=0;i<n;i++)
793 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
794
795}
796
12d8d654 797void AliTPC::SetActiveSectors(Int_t flag)
792bb11c 798{
799 //
800 // activate sectors which were hitted by tracks
801 //loop over tracks
88cb7938 802 SetTreeAddress();//just for security
792bb11c 803 if (fHitType==0) return; // if Clones hit - not short volume ID information
804 if (fActiveSectors) delete [] fActiveSectors;
805 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
12d8d654 806 if (flag) {
807 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
808 return;
809 }
792bb11c 810 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
811 TBranch * branch=0;
88cb7938 812 if (TreeH() == 0x0)
813 {
814 Fatal("SetActiveSectors","Can not find TreeH in folder");
815 return;
816 }
817 if (fHitType>1) branch = TreeH()->GetBranch("TPC2");
818 else branch = TreeH()->GetBranch("TPC");
819 Stat_t ntracks = TreeH()->GetEntries();
792bb11c 820 // loop over all hits
f540341d 821 if (GetDebug()) cout<<"\nAliTPC::SetActiveSectors(): Got "<<ntracks<<" tracks\n";
88cb7938 822
823 for(Int_t track=0;track<ntracks;track++)
824 {
792bb11c 825 ResetHits();
826 //
827 if (fTrackHits && fHitType&4) {
88cb7938 828 TBranch * br1 = TreeH()->GetBranch("fVolumes");
829 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 830 br1->GetEvent(track);
831 br2->GetEvent(track);
832 Int_t *volumes = fTrackHits->GetVolumes();
833 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
834 fActiveSectors[volumes[j]]=kTRUE;
835 }
836
837 //
838 if (fTrackHitsOld && fHitType&2) {
88cb7938 839 TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
792bb11c 840 br->GetEvent(track);
841 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
842 for (UInt_t j=0;j<ar->GetSize();j++){
843 fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
844 }
845 }
846 }
792bb11c 847}
848
849
850
fe4da5cc 851
9bdd974b 852void AliTPC::Digits2Clusters(Int_t /*eventnumber*/) const
fe4da5cc 853{
3c0f9266 854 //-----------------------------------------------------------------
855 // This is a simple cluster finder.
3c0f9266 856 //-----------------------------------------------------------------
c630aafd 857 Error("Digits2Clusters",
858 "Dummy function ! Call AliTPCclusterer::Digits2Clusters(...) instead !");
fe4da5cc 859}
860
73042f01 861extern Double_t SigmaY2(Double_t, Double_t, Double_t);
862extern Double_t SigmaZ2(Double_t, Double_t);
fe4da5cc 863//_____________________________________________________________________________
176aff27 864void AliTPC::Hits2Clusters(Int_t /*eventn*/)
fe4da5cc 865{
8c555625 866 //--------------------------------------------------------
fe4da5cc 867 // TPC simple cluster generator from hits
868 // obtained from the TPC Fast Simulator
8c555625 869 // The point errors are taken from the parametrization
870 //--------------------------------------------------------
871
872 //-----------------------------------------------------------------
873 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
874 //-----------------------------------------------------------------
73042f01 875 // Adopted to Marian's cluster data structure by I.Belikov, CERN,
876 // Jouri.Belikov@cern.ch
877 //----------------------------------------------------------------
878
879 /////////////////////////////////////////////////////////////////////////////
880 //
881 //---------------------------------------------------------------------
882 // ALICE TPC Cluster Parameters
883 //--------------------------------------------------------------------
884
885
886
887 // Cluster width in rphi
888 const Float_t kACrphi=0.18322;
889 const Float_t kBCrphi=0.59551e-3;
890 const Float_t kCCrphi=0.60952e-1;
891 // Cluster width in z
892 const Float_t kACz=0.19081;
893 const Float_t kBCz=0.55938e-3;
894 const Float_t kCCz=0.30428;
895
73042f01 896
88cb7938 897 if (!fLoader) {
73042f01 898 cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
899 return;
900 }
3c0f9266 901
afc42102 902 //if(fDefaults == 0) SetDefaults();
cc80f89e 903
73042f01 904 Float_t sigmaRphi,sigmaZ,clRphi,clZ;
fe4da5cc 905 //
1578254f 906 TParticle *particle; // pointer to a given particle
fe4da5cc 907 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 908 Int_t sector;
fe4da5cc 909 Int_t ipart;
910 Float_t xyz[5];
911 Float_t pl,pt,tanth,rpad,ratio;
fe4da5cc 912 Float_t cph,sph;
913
914 //---------------------------------------------------------------
915 // Get the access to the tracks
916 //---------------------------------------------------------------
917
88cb7938 918 TTree *tH = TreeH();
919 if (tH == 0x0)
920 {
921 Fatal("Hits2Clusters","Can not find TreeH in folder");
922 return;
923 }
924 SetTreeAddress();
925
73042f01 926 Stat_t ntracks = tH->GetEntries();
73042f01 927
928 //Switch to the output file
88cb7938 929
930 if (fLoader->TreeR() == 0x0) fLoader->MakeTree("R");
931
932 cout<<"fTPCParam->GetTitle() = "<<fTPCParam->GetTitle()<<endl;
933
934 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
935 rl->CdGAFile();
c630aafd 936 //fTPCParam->Write(fTPCParam->GetTitle());
88cb7938 937
73042f01 938 AliTPCClustersArray carray;
939 carray.Setup(fTPCParam);
940 carray.SetClusterType("AliTPCcluster");
88cb7938 941 carray.MakeTree(fLoader->TreeR());
73042f01 942
943 Int_t nclusters=0; //cluster counter
fe4da5cc 944
945 //------------------------------------------------------------
cc80f89e 946 // Loop over all sectors (72 sectors for 20 deg
947 // segmentation for both lower and upper sectors)
948 // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
3c0f9266 949 // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
fe4da5cc 950 //
3c0f9266 951 // First cluster for sector 0 starts at "0"
fe4da5cc 952 //------------------------------------------------------------
cc80f89e 953
954 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){
8c555625 955 //MI change
cc80f89e 956 fTPCParam->AdjustCosSin(isec,cph,sph);
fe4da5cc 957
958 //------------------------------------------------------------
959 // Loop over tracks
960 //------------------------------------------------------------
961
962 for(Int_t track=0;track<ntracks;track++){
963 ResetHits();
73042f01 964 tH->GetEvent(track);
fe4da5cc 965 //
73042f01 966 // Get number of the TPC hits
792bb11c 967 //
39c8eb58 968 tpcHit = (AliTPChit*)FirstHit(-1);
969
fe4da5cc 970 // Loop over hits
971 //
39c8eb58 972 while(tpcHit){
973
974 if (tpcHit->fQ == 0.) {
975 tpcHit = (AliTPChit*) NextHit();
976 continue; //information about track (I.Belikov)
977 }
fe4da5cc 978 sector=tpcHit->fSector; // sector number
39c8eb58 979
39c8eb58 980 if(sector != isec){
981 tpcHit = (AliTPChit*) NextHit();
982 continue;
983 }
94de3818 984 ipart=tpcHit->Track();
5d12ce38 985 particle=gAlice->GetMCApp()->Particle(ipart);
1578254f 986 pl=particle->Pz();
987 pt=particle->Pt();
fe4da5cc 988 if(pt < 1.e-9) pt=1.e-9;
989 tanth=pl/pt;
990 tanth = TMath::Abs(tanth);
94de3818 991 rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
fe4da5cc 992 ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
73042f01 993
fe4da5cc 994 // space-point resolutions
995
73042f01 996 sigmaRphi=SigmaY2(rpad,tanth,pt);
997 sigmaZ =SigmaZ2(rpad,tanth );
fe4da5cc 998
999 // cluster widths
1000
73042f01 1001 clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
1002 clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
fe4da5cc 1003
1004 // temporary protection
1005
73042f01 1006 if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
1007 if(sigmaZ < 0.) sigmaZ=0.4e-3;
1008 if(clRphi < 0.) clRphi=2.5e-3;
1009 if(clZ < 0.) clZ=2.5e-5;
fe4da5cc 1010
1011 //
cc80f89e 1012
1013 //
1014 // smearing --> rotate to the 1 (13) or to the 25 (49) sector,
fe4da5cc 1015 // then the inaccuracy in a X-Y plane is only along Y (pad row)!
1016 //
94de3818 1017 Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
1018 Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
73042f01 1019 xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
1020 Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
1021 fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
1022 Float_t ymax=xprim*TMath::Tan(0.5*alpha);
1023 if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
94de3818 1024 xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
1025 if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
39c8eb58 1026 xyz[2]=sigmaRphi; // fSigmaY2
1027 xyz[3]=sigmaZ; // fSigmaZ2
1028 xyz[4]=tpcHit->fQ; // q
73042f01 1029
1030 AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
1031 if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
1032
94de3818 1033 Int_t tracks[3]={tpcHit->Track(), -1, -1};
39c8eb58 1034 AliTPCcluster cluster(tracks,xyz);
73042f01 1035
1036 clrow->InsertCluster(&cluster); nclusters++;
1037
39c8eb58 1038 tpcHit = (AliTPChit*)NextHit();
1039
1040
fe4da5cc 1041 } // end of loop over hits
73042f01 1042
1043 } // end of loop over tracks
1044
1045 Int_t nrows=fTPCParam->GetNRow(isec);
1046 for (Int_t irow=0; irow<nrows; irow++) {
1047 AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
1048 if (!clrow) continue;
1049 carray.StoreRow(isec,irow);
1050 carray.ClearRow(isec,irow);
1051 }
1052
cc80f89e 1053 } // end of loop over sectors
73042f01 1054
f540341d 1055 // cerr<<"Number of made clusters : "<<nclusters<<" \n";
88cb7938 1056 fLoader->WriteRecPoints("OVERWRITE");
1057
cc80f89e 1058
1059} // end of function
1060
1061//_________________________________________________________________
1062void AliTPC::Hits2ExactClustersSector(Int_t isec)
1063{
1064 //--------------------------------------------------------
1065 //calculate exact cross point of track and given pad row
1066 //resulting values are expressed in "digit" coordinata
1067 //--------------------------------------------------------
1068
1069 //-----------------------------------------------------------------
1070 // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
1071 //-----------------------------------------------------------------
1072 //
1073 if (fClustersArray==0){
1074 return;
1075 }
1076 //
1077 TParticle *particle; // pointer to a given particle
1078 AliTPChit *tpcHit; // pointer to a sigle TPC hit
5f16d237 1079 // Int_t sector,nhits;
cc80f89e 1080 Int_t ipart;
73042f01 1081 const Int_t kcmaxhits=30000;
de61d5d5 1082 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
1083 AliTPCFastVector & xxx = *xxxx;
73042f01 1084 Int_t maxhits = kcmaxhits;
cc80f89e 1085 //construct array for each padrow
1086 for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++)
1087 fClustersArray->CreateRow(isec,i);
fe4da5cc 1088
cc80f89e 1089 //---------------------------------------------------------------
1090 // Get the access to the tracks
1091 //---------------------------------------------------------------
1092
88cb7938 1093 TTree *tH = TreeH();
1094 if (tH == 0x0)
1095 {
1096 Fatal("Hits2Clusters","Can not find TreeH in folder");
1097 return;
1098 }
1099 SetTreeAddress();
1100
73042f01 1101 Stat_t ntracks = tH->GetEntries();
5d12ce38 1102 Int_t npart = gAlice->GetMCApp()->GetNtrack();
5f16d237 1103 //MI change
1104 TBranch * branch=0;
792bb11c 1105 if (fHitType>1) branch = tH->GetBranch("TPC2");
5f16d237 1106 else branch = tH->GetBranch("TPC");
1107
cc80f89e 1108 //------------------------------------------------------------
1109 // Loop over tracks
1110 //------------------------------------------------------------
792bb11c 1111
5f16d237 1112 for(Int_t track=0;track<ntracks;track++){
1113 Bool_t isInSector=kTRUE;
cc80f89e 1114 ResetHits();
792bb11c 1115 isInSector = TrackInVolume(isec,track);
5f16d237 1116 if (!isInSector) continue;
1117 //MI change
1118 branch->GetEntry(track); // get next track
cc80f89e 1119 //
1120 // Get number of the TPC hits and a pointer
1121 // to the particles
cc80f89e 1122 // Loop over hits
1123 //
1124 Int_t currentIndex=0;
1125 Int_t lastrow=-1; //last writen row
5f16d237 1126
1127 //M.I. changes
1128
1129 tpcHit = (AliTPChit*)FirstHit(-1);
1130 while(tpcHit){
1131
1132 Int_t sector=tpcHit->fSector; // sector number
1133 if(sector != isec){
1134 tpcHit = (AliTPChit*) NextHit();
1135 continue;
1136 }
1137
94de3818 1138 ipart=tpcHit->Track();
5d12ce38 1139 if (ipart<npart) particle=gAlice->GetMCApp()->Particle(ipart);
cc80f89e 1140
1141 //find row number
1142
94de3818 1143 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
cc80f89e 1144 Int_t index[3]={1,isec,0};
1145 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
5f16d237 1146 if (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
cc80f89e 1147 if (lastrow<0) lastrow=currentrow;
1148 if (currentrow==lastrow){
1149 if ( currentIndex>=maxhits){
73042f01 1150 maxhits+=kcmaxhits;
cc80f89e 1151 xxx.ResizeTo(4*maxhits);
1152 }
1153 xxx(currentIndex*4)=x[0];
1154 xxx(currentIndex*4+1)=x[1];
1155 xxx(currentIndex*4+2)=x[2];
1156 xxx(currentIndex*4+3)=tpcHit->fQ;
1157 currentIndex++;
1158 }
1159 else
1160 if (currentIndex>2){
1161 Float_t sumx=0;
1162 Float_t sumx2=0;
1163 Float_t sumx3=0;
1164 Float_t sumx4=0;
1165 Float_t sumy=0;
1166 Float_t sumxy=0;
1167 Float_t sumx2y=0;
1168 Float_t sumz=0;
1169 Float_t sumxz=0;
1170 Float_t sumx2z=0;
1171 Float_t sumq=0;
1172 for (Int_t index=0;index<currentIndex;index++){
1173 Float_t x,x2,x3,x4;
1174 x=x2=x3=x4=xxx(index*4);
1175 x2*=x;
1176 x3*=x2;
1177 x4*=x3;
1178 sumx+=x;
1179 sumx2+=x2;
1180 sumx3+=x3;
1181 sumx4+=x4;
1182 sumy+=xxx(index*4+1);
1183 sumxy+=xxx(index*4+1)*x;
1184 sumx2y+=xxx(index*4+1)*x2;
1185 sumz+=xxx(index*4+2);
1186 sumxz+=xxx(index*4+2)*x;
1187 sumx2z+=xxx(index*4+2)*x2;
1188 sumq+=xxx(index*4+3);
1189 }
73042f01 1190 Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
cc80f89e 1191 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
1192 sumx2*(sumx*sumx3-sumx2*sumx2);
1193
1194 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
1195 sumx2*(sumxy*sumx3-sumx2y*sumx2);
1196 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
1197 sumx2*(sumxz*sumx3-sumx2z*sumx2);
1198
1199 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
1200 sumx2*(sumx*sumx2y-sumx2*sumxy);
1201 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
1202 sumx2*(sumx*sumx2z-sumx2*sumxz);
1203
da33556f 1204 if (TMath::Abs(det)<0.00001){
1205 tpcHit = (AliTPChit*)NextHit();
1206 continue;
1207 }
1208
73042f01 1209 Float_t y=detay/det+centralPad;
cc80f89e 1210 Float_t z=detaz/det;
1211 Float_t by=detby/det; //y angle
1212 Float_t bz=detbz/det; //z angle
1213 sumy/=Float_t(currentIndex);
1214 sumz/=Float_t(currentIndex);
5f16d237 1215
cc80f89e 1216 AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
5f16d237 1217 if (row!=0) {
1218 AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
1219 // AliComplexCluster cl;
1220 cl->fX=z;
1221 cl->fY=y;
1222 cl->fQ=sumq;
1223 cl->fSigmaX2=bz;
1224 cl->fSigmaY2=by;
1225 cl->fTracks[0]=ipart;
1226 }
cc80f89e 1227 currentIndex=0;
1228 lastrow=currentrow;
1229 } //end of calculating cluster for given row
1230
1231
5f16d237 1232 tpcHit = (AliTPChit*)NextHit();
cc80f89e 1233 } // end of loop over hits
1234 } // end of loop over tracks
1235 //write padrows to tree
1236 for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) {
1237 fClustersArray->StoreRow(isec,ii);
1238 fClustersArray->ClearRow(isec,ii);
1239 }
1240 xxxx->Delete();
1241
fe4da5cc 1242}
0a61bf9d 1243
1244
1245
85a5290f 1246//______________________________________________________________________
9bdd974b 1247AliDigitizer* AliTPC::CreateDigitizer(AliRunDigitizer* manager) const
85a5290f 1248{
1249 return new AliTPCDigitizer(manager);
1250}
0a61bf9d 1251//__
176aff27 1252void AliTPC::SDigits2Digits2(Int_t /*eventnumber*/)
0a61bf9d 1253{
1254 //create digits from summable digits
407ff276 1255 GenerNoise(500000); //create teble with noise
0a61bf9d 1256
1257 //conect tree with sSDigits
88cb7938 1258 TTree *t = fLoader->TreeS();
1259
1260 if (t == 0x0)
1261 {
1262 fLoader->LoadSDigits("READ");
1263 t = fLoader->TreeS();
1264 if (t == 0x0)
1265 {
1266 Error("SDigits2Digits2","Can not get input TreeS");
1267 return;
1268 }
1269 }
1270
1271 if (fLoader->TreeD() == 0x0) fLoader->MakeTree("D");
1272
0a61bf9d 1273 AliSimDigits digarr, *dummy=&digarr;
88cb7938 1274 TBranch* sdb = t->GetBranch("Segment");
1275 if (sdb == 0x0)
1276 {
1277 Error("SDigits2Digits2","Can not find branch with segments in TreeS.");
1278 return;
1279 }
1280
1281 sdb->SetAddress(&dummy);
1282
0a61bf9d 1283 Stat_t nentries = t->GetEntries();
1284
5f16d237 1285 // set zero suppression
1286
1287 fTPCParam->SetZeroSup(2);
1288
1289 // get zero suppression
1290
1291 Int_t zerosup = fTPCParam->GetZeroSup();
1292
1293 //make tree with digits
1294
0a61bf9d 1295 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1296 arr->SetClass("AliSimDigits");
1297 arr->Setup(fTPCParam);
88cb7938 1298 arr->MakeTree(fLoader->TreeD());
0a61bf9d 1299
88cb7938 1300 AliTPCParam * par = fTPCParam;
5f16d237 1301
0a61bf9d 1302 //Loop over segments of the TPC
5f16d237 1303
0a61bf9d 1304 for (Int_t n=0; n<nentries; n++) {
1305 t->GetEvent(n);
1306 Int_t sec, row;
1307 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
1308 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
1309 continue;
1310 }
88cb7938 1311 if (!IsSectorActive(sec))
1312 {
1313// cout<<n<<" NOT Active \n";
1314 continue;
1315 }
1316 else
1317 {
1318// cout<<n<<" Active \n";
1319 }
0a61bf9d 1320 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1321 Int_t nrows = digrow->GetNRows();
1322 Int_t ncols = digrow->GetNCols();
1323
1324 digrow->ExpandBuffer();
1325 digarr.ExpandBuffer();
1326 digrow->ExpandTrackBuffer();
1327 digarr.ExpandTrackBuffer();
1328
5f16d237 1329
407ff276 1330 Short_t * pamp0 = digarr.GetDigits();
1331 Int_t * ptracks0 = digarr.GetTracks();
1332 Short_t * pamp1 = digrow->GetDigits();
1333 Int_t * ptracks1 = digrow->GetTracks();
1334 Int_t nelems =nrows*ncols;
1335 Int_t saturation = fTPCParam->GetADCSat();
1336 //use internal structure of the AliDigits - for speed reason
1337 //if you cahnge implementation
1338 //of the Alidigits - it must be rewriten -
1339 for (Int_t i= 0; i<nelems; i++){
1340 // Float_t q = *pamp0;
1341 //q/=16.; //conversion faktor
1342 //Float_t noise= GetNoise();
1343 //q+=noise;
1344 //q= TMath::Nint(q);
1345 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1346 if (q>zerosup){
1347 if (q>saturation) q=saturation;
1348 *pamp1=(Short_t)q;
1349 //if (ptracks0[0]==0)
1350 // ptracks1[0]=1;
1351 //else
1352 ptracks1[0]=ptracks0[0];
1353 ptracks1[nelems]=ptracks0[nelems];
1354 ptracks1[2*nelems]=ptracks0[2*nelems];
1355 }
1356 pamp0++;
1357 pamp1++;
1358 ptracks0++;
1359 ptracks1++;
1360 }
5f16d237 1361
5f16d237 1362 arr->StoreRow(sec,row);
1363 arr->ClearRow(sec,row);
9fe90376 1364 // cerr<<sec<<"\t"<<row<<"\n";
5f16d237 1365 }
0a61bf9d 1366
0a61bf9d 1367
5f16d237 1368 //write results
88cb7938 1369 fLoader->WriteDigits("OVERWRITE");
5f16d237 1370
88cb7938 1371 delete arr;
afc42102 1372}
1373//__________________________________________________________________
1374void AliTPC::SetDefaults(){
9bdd974b 1375 //
1376 // setting the defaults
1377 //
afc42102 1378
f540341d 1379 // cerr<<"Setting default parameters...\n";
afc42102 1380
1381 // Set response functions
1382
88cb7938 1383 //
1384 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1385 rl->CdGAFile();
2ab0c725 1386 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
7a09f434 1387 if(param){
1388 printf("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...\n");
1389 delete param;
1390 param = new AliTPCParamSR();
1391 }
1392 else {
1393 param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
1394 }
1395 if(!param){
1396 printf("No TPC parameters found\n");
1397 exit(4);
1398 }
1399
1400
2ab0c725 1401 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
f03e3423 1402 AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
1403 AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
2ab0c725 1404 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1405 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1406 rf->SetOffset(3*param->GetZSigma());
1407 rf->Update();
afc42102 1408
1409 TDirectory *savedir=gDirectory;
2ab0c725 1410 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
1411 if (!f->IsOpen()) {
afc42102 1412 cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
2ab0c725 1413 exit(3);
1414 }
2a336e15 1415
1416 TString s;
2ab0c725 1417 prfinner->Read("prf_07504_Gati_056068_d02");
2a336e15 1418 //PH Set different names
1419 s=prfinner->GetGRF()->GetName();
1420 s+="in";
1421 prfinner->GetGRF()->SetName(s.Data());
1422
f03e3423 1423 prfouter1->Read("prf_10006_Gati_047051_d03");
2a336e15 1424 s=prfouter1->GetGRF()->GetName();
1425 s+="out1";
1426 prfouter1->GetGRF()->SetName(s.Data());
1427
f03e3423 1428 prfouter2->Read("prf_15006_Gati_047051_d03");
2a336e15 1429 s=prfouter2->GetGRF()->GetName();
1430 s+="out2";
1431 prfouter2->GetGRF()->SetName(s.Data());
1432
2ab0c725 1433 f->Close();
afc42102 1434 savedir->cd();
1435
2ab0c725 1436 param->SetInnerPRF(prfinner);
f03e3423 1437 param->SetOuter1PRF(prfouter1);
1438 param->SetOuter2PRF(prfouter2);
2ab0c725 1439 param->SetTimeRF(rf);
1440
afc42102 1441 // set fTPCParam
1442
2ab0c725 1443 SetParam(param);
1444
afc42102 1445
1446 fDefaults = 1;
1447
1448}
1449//__________________________________________________________________
85a5290f 1450void AliTPC::Hits2Digits()
1451{
9bdd974b 1452 //
1453 // creates digits from hits
1454 //
1455
85a5290f 1456 fLoader->LoadHits("read");
1457 fLoader->LoadDigits("recreate");
1458 AliRunLoader* runLoader = fLoader->GetRunLoader();
1459
1460 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1461 runLoader->GetEvent(iEvent);
1462 SetActiveSectors();
1463 Hits2Digits(iEvent);
1464 }
1465
1466 fLoader->UnloadHits();
1467 fLoader->UnloadDigits();
1468}
1469//__________________________________________________________________
afc42102 1470void AliTPC::Hits2Digits(Int_t eventnumber)
1471{
1472 //----------------------------------------------------
1473 // Loop over all sectors for a single event
1474 //----------------------------------------------------
88cb7938 1475 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1476 rl->GetEvent(eventnumber);
1477 if (fLoader->TreeH() == 0x0)
1478 {
1479 if(fLoader->LoadHits())
1480 {
1481 Error("Hits2Digits","Can not load hits.");
1482 }
1483 }
1484 SetTreeAddress();
1485
1486 if (fLoader->TreeD() == 0x0 )
1487 {
1488 fLoader->MakeTree("D");
1489 if (fLoader->TreeD() == 0x0 )
1490 {
1491 Error("Hits2Digits","Can not get TreeD");
1492 return;
1493 }
1494 }
afc42102 1495
1496 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1497 GenerNoise(500000); //create teble with noise
2ab0c725 1498
1499 //setup TPCDigitsArray
afc42102 1500
1501 if(GetDigitsArray()) delete GetDigitsArray();
1502
2ab0c725 1503 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1504 arr->SetClass("AliSimDigits");
afc42102 1505 arr->Setup(fTPCParam);
88cb7938 1506
1507 arr->MakeTree(fLoader->TreeD());
2ab0c725 1508 SetDigitsArray(arr);
1509
afc42102 1510 fDigitsSwitch=0; // standard digits
2ab0c725 1511
f540341d 1512 // cerr<<"Digitizing TPC -- normal digits...\n";
fe4da5cc 1513
88cb7938 1514 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1515 if (IsSectorActive(isec))
1516 {
f2a509af 1517 if (fDebug) Info("Hits2Digits","Sector %d is active.",isec);
88cb7938 1518 Hits2DigitsSector(isec);
1519 }
1520 else
1521 {
f2a509af 1522 if (fDebug) Info("Hits2Digits","Sector %d is NOT active.",isec);
88cb7938 1523 }
cc80f89e 1524
88cb7938 1525 fLoader->WriteDigits("OVERWRITE");
f2a509af 1526
1527//this line prevents the crash in the similar one
1528//on the beginning of this method
1529//destructor attempts to reset the tree, which is deleted by the loader
1530//need to be redesign
1531 if(GetDigitsArray()) delete GetDigitsArray();
1532 SetDigitsArray(0x0);
1533
8c555625 1534}
1535
f8cf550c 1536//__________________________________________________________________
0a61bf9d 1537void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1538{
1539
1540 //-----------------------------------------------------------
1541 // summable digits - 16 bit "ADC", no noise, no saturation
1542 //-----------------------------------------------------------
1543
1544 //----------------------------------------------------
afc42102 1545 // Loop over all sectors for a single event
f8cf550c 1546 //----------------------------------------------------
88cb7938 1547// AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1548
1549 AliRunLoader* rl = fLoader->GetRunLoader();
1550
1551 rl->GetEvent(eventnumber);
1552 if (fLoader->TreeH() == 0x0)
1553 {
1554 if(fLoader->LoadHits())
1555 {
1556 Error("Hits2Digits","Can not load hits.");
1557 return;
1558 }
1559 }
1560 SetTreeAddress();
f8cf550c 1561
afc42102 1562
88cb7938 1563 if (fLoader->TreeS() == 0x0 )
1564 {
1565 fLoader->MakeTree("S");
1566 }
1567
afc42102 1568 if(fDefaults == 0) SetDefaults();
88cb7938 1569
407ff276 1570 GenerNoise(500000); //create table with noise
afc42102 1571 //setup TPCDigitsArray
1572
1573 if(GetDigitsArray()) delete GetDigitsArray();
1574
88cb7938 1575
afc42102 1576 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1577 arr->SetClass("AliSimDigits");
1578 arr->Setup(fTPCParam);
88cb7938 1579 arr->MakeTree(fLoader->TreeS());
1580
afc42102 1581 SetDigitsArray(arr);
1582
f540341d 1583 // cerr<<"Digitizing TPC -- summable digits...\n";
afc42102 1584
1585 fDigitsSwitch=1; // summable digits
5f16d237 1586
1587 // set zero suppression to "0"
1588
1589 fTPCParam->SetZeroSup(0);
f8cf550c 1590
88cb7938 1591 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1592 if (IsSectorActive(isec))
1593 {
1594// cout<<"Sector "<<isec<<" is active\n";
1595 Hits2DigitsSector(isec);
1596 }
1597
1598 fLoader->WriteSDigits("OVERWRITE");
1599
1600//this line prevents the crash in the similar one
1601//on the beginning of this method
1602//destructor attempts to reset the tree, which is deleted by the loader
1603//need to be redesign
1604 if(GetDigitsArray()) delete GetDigitsArray();
1605 SetDigitsArray(0x0);
f8cf550c 1606}
0a61bf9d 1607//__________________________________________________________________
88cb7938 1608
0a61bf9d 1609void AliTPC::Hits2SDigits()
1610{
1611
1612 //-----------------------------------------------------------
1613 // summable digits - 16 bit "ADC", no noise, no saturation
1614 //-----------------------------------------------------------
1615
85a5290f 1616 fLoader->LoadHits("read");
1617 fLoader->LoadSDigits("recreate");
1618 AliRunLoader* runLoader = fLoader->GetRunLoader();
0a61bf9d 1619
85a5290f 1620 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1621 runLoader->GetEvent(iEvent);
1622 SetTreeAddress();
1623 SetActiveSectors();
1624 Hits2SDigits2(iEvent);
1625 }
0a61bf9d 1626
85a5290f 1627 fLoader->UnloadHits();
1628 fLoader->UnloadSDigits();
0a61bf9d 1629}
fe4da5cc 1630//_____________________________________________________________________________
88cb7938 1631
8c555625 1632void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1633{
8c555625 1634 //-------------------------------------------------------------------
fe4da5cc 1635 // TPC conversion from hits to digits.
8c555625 1636 //-------------------------------------------------------------------
1637
1638 //-----------------------------------------------------------------
1639 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1640 //-----------------------------------------------------------------
1641
fe4da5cc 1642 //-------------------------------------------------------
8c555625 1643 // Get the access to the track hits
fe4da5cc 1644 //-------------------------------------------------------
8c555625 1645
afc42102 1646 // check if the parameters are set - important if one calls this method
1647 // directly, not from the Hits2Digits
1648
1649 if(fDefaults == 0) SetDefaults();
cc80f89e 1650
88cb7938 1651 TTree *tH = TreeH(); // pointer to the hits tree
1652 if (tH == 0x0)
1653 {
1654 Fatal("Hits2DigitsSector","Can not find TreeH in folder");
1655 return;
1656 }
1657
73042f01 1658 Stat_t ntracks = tH->GetEntries();
8c555625 1659
1660 if( ntracks > 0){
1661
1662 //-------------------------------------------
1663 // Only if there are any tracks...
1664 //-------------------------------------------
1665
8c555625 1666 TObjArray **row;
fe4da5cc 1667
a62d28a2 1668 //printf("*** Processing sector number %d ***\n",isec);
8c555625 1669
1670 Int_t nrows =fTPCParam->GetNRow(isec);
1671
b584c7dd 1672 row= new TObjArray* [nrows+2]; // 2 extra rows for cross talk
fe4da5cc 1673
73042f01 1674 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1675
1676 //--------------------------------------------------------
1677 // Digitize this sector, row by row
de61d5d5 1678 // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
8c555625 1679 // each one containing electrons accepted on this
1680 // row, assigned into tracks
1681 //--------------------------------------------------------
1682
1683 Int_t i;
1684
88cb7938 1685 if (fDigitsArray->GetTree()==0)
1686 {
1687 Fatal("Hits2DigitsSector","Tree not set in fDigitsArray");
1688 }
8c555625 1689
cc80f89e 1690 for (i=0;i<nrows;i++){
8c555625 1691
afc42102 1692 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1693
cc80f89e 1694 DigitizeRow(i,isec,row);
8c555625 1695
cc80f89e 1696 fDigitsArray->StoreRow(isec,i);
8c555625 1697
792bb11c 1698 Int_t ndig = dig->GetDigitSize();
88cb7938 1699
1700 if (gDebug > 10)
1701 printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
792bb11c 1702
cc80f89e 1703 fDigitsArray->ClearRow(isec,i);
8c555625 1704
cc80f89e 1705
8c555625 1706 } // end of the sector digitization
8c555625 1707
df32adf9 1708 for(i=0;i<nrows+2;i++){
39c8eb58 1709 row[i]->Delete();
1710 delete row[i];
cc80f89e 1711 }
1712
8c555625 1713 delete [] row; // delete the array of pointers to TObjArray-s
1714
1715 } // ntracks >0
8c555625 1716
cc80f89e 1717} // end of Hits2DigitsSector
8c555625 1718
8c555625 1719
8c555625 1720//_____________________________________________________________________________
cc80f89e 1721void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1722{
1723 //-----------------------------------------------------------
1724 // Single row digitization, coupling from the neighbouring
1725 // rows taken into account
1726 //-----------------------------------------------------------
1727
1728 //-----------------------------------------------------------------
1729 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1730 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1731 //-----------------------------------------------------------------
1732
1733
8c555625 1734 Float_t zerosup = fTPCParam->GetZeroSup();
b584c7dd 1735 // Int_t nrows =fTPCParam->GetNRow(isec);
cc80f89e 1736 fCurrentIndex[1]= isec;
8c555625 1737
8c555625 1738
73042f01 1739 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1740 Int_t nofTbins = fTPCParam->GetMaxTBin();
1741 Int_t indexRange[4];
8c555625 1742 //
1743 // Integrated signal for this row
1744 // and a single track signal
cc80f89e 1745 //
de61d5d5 1746
1747 AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
1748 AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
8c555625 1749 //
de61d5d5 1750 AliTPCFastMatrix &total = *m1;
8c555625 1751
1752 // Array of pointers to the label-signal list
1753
73042f01 1754 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1755 Float_t **pList = new Float_t* [nofDigits];
8c555625 1756
1757 Int_t lp;
cc80f89e 1758 Int_t i1;
73042f01 1759 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1760 //
cc80f89e 1761 //calculate signal
1762 //
b584c7dd 1763 //Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
1764 //Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
1765 Int_t row1=irow;
1766 Int_t row2=irow+2;
cc80f89e 1767 for (Int_t row= row1;row<=row2;row++){
1768 Int_t nTracks= rows[row]->GetEntries();
1769 for (i1=0;i1<nTracks;i1++){
1770 fCurrentIndex[2]= row;
b584c7dd 1771 fCurrentIndex[3]=irow+1;
1772 if (row==irow+1){
cc80f89e 1773 m2->Zero(); // clear single track signal matrix
73042f01 1774 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1775 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1776 }
73042f01 1777 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1778 }
8c555625 1779 }
cc80f89e 1780
8c555625 1781 Int_t tracks[3];
8c555625 1782
cc80f89e 1783 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1784 Int_t gi=-1;
1785 Float_t fzerosup = zerosup+0.5;
1786 for(Int_t it=0;it<nofTbins;it++){
1787 Float_t *pq = &(total.UncheckedAt(0,it));
1788 for(Int_t ip=0;ip<nofPads;ip++){
1789 gi++;
1790 Float_t q=*pq;
1791 pq++;
f8cf550c 1792 if(fDigitsSwitch == 0){
407ff276 1793 q+=GetNoise();
de61d5d5 1794 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1795 q = TMath::Nint(q);
f8cf550c 1796 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
cc80f89e 1797
f8cf550c 1798 }
1799
1800 else {
5f16d237 1801 if(q <= 0.) continue; // do not fill zeros
68771f83 1802 if(q>2000.) q=2000.;
f8cf550c 1803 q *= 16.;
68771f83 1804 q = TMath::Nint(q);
f8cf550c 1805 }
8c555625 1806
1807 //
1808 // "real" signal or electronic noise (list = -1)?
1809 //
1810
1811 for(Int_t j1=0;j1<3;j1++){
407ff276 1812 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 1813 }
1814
cc80f89e 1815//Begin_Html
1816/*
1817 <A NAME="AliDigits"></A>
1818 using of AliDigits object
1819*/
1820//End_Html
1821 dig->SetDigitFast((Short_t)q,it,ip);
1822 if (fDigitsArray->IsSimulated())
1823 {
1824 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
1825 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
1826 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
1827 }
1828
fe4da5cc 1829
8c555625 1830 } // end of loop over time buckets
1831 } // end of lop over pads
1832
1833 //
1834 // This row has been digitized, delete nonused stuff
1835 //
1836
73042f01 1837 for(lp=0;lp<nofDigits;lp++){
8c555625 1838 if(pList[lp]) delete [] pList[lp];
1839 }
1840
1841 delete [] pList;
1842
1843 delete m1;
1844 delete m2;
cc80f89e 1845 // delete m3;
8c555625 1846
1847} // end of DigitizeRow
cc80f89e 1848
8c555625 1849//_____________________________________________________________________________
cc80f89e 1850
de61d5d5 1851Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
1852 AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
8c555625 1853{
1854
1855 //---------------------------------------------------------------
1856 // Calculates 2-D signal (pad,time) for a single track,
1857 // returns a pointer to the signal matrix and the track label
1858 // No digitization is performed at this level!!!
1859 //---------------------------------------------------------------
1860
1861 //-----------------------------------------------------------------
1862 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1863 // Modified: Marian Ivanov
8c555625 1864 //-----------------------------------------------------------------
1865
de61d5d5 1866 AliTPCFastVector *tv;
1867
1868 tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
1869 AliTPCFastVector &v = *tv;
8c555625 1870
1871 Float_t label = v(0);
b584c7dd 1872 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]-1)-1)/2;
8c555625 1873
8c555625 1874 Int_t nElectrons = (tv->GetNrows()-1)/4;
73042f01 1875 indexRange[0]=9999; // min pad
1876 indexRange[1]=-1; // max pad
1877 indexRange[2]=9999; //min time
1878 indexRange[3]=-1; // max time
8c555625 1879
de61d5d5 1880 AliTPCFastMatrix &signal = *m1;
1881 AliTPCFastMatrix &total = *m2;
8c555625 1882 //
1883 // Loop over all electrons
1884 //
8c555625 1885 for(Int_t nel=0; nel<nElectrons; nel++){
cc80f89e 1886 Int_t idx=nel*4;
1887 Float_t aval = v(idx+4);
1888 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
1889 Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
de61d5d5 1890 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
1891
1892 Int_t *index = fTPCParam->GetResBin(0);
1893 Float_t *weight = & (fTPCParam->GetResWeight(0));
1894
1895 if (n>0) for (Int_t i =0; i<n; i++){
73042f01 1896 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
de61d5d5 1897
1898 if (pad>=0){
cc80f89e 1899 Int_t time=index[2];
de61d5d5 1900 Float_t qweight = *(weight)*eltoadcfac;
cc80f89e 1901
de61d5d5 1902 if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
1903 total.UncheckedAt(pad,time)+=qweight;
1904 if (indexRange[0]>pad) indexRange[0]=pad;
1905 if (indexRange[1]<pad) indexRange[1]=pad;
1906 if (indexRange[2]>time) indexRange[2]=time;
1907 if (indexRange[3]<time) indexRange[3]=time;
1908
1909 index+=3;
1910 weight++;
1911
cc80f89e 1912 }
1913 }
8c555625 1914 } // end of loop over electrons
cc80f89e 1915
8c555625 1916 return label; // returns track label when finished
1917}
1918
1919//_____________________________________________________________________________
de61d5d5 1920void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *m,
1921 Int_t *indexRange, Float_t **pList)
8c555625 1922{
1923 //----------------------------------------------------------------------
1924 // Updates the list of tracks contributing to digits for a given row
1925 //----------------------------------------------------------------------
1926
1927 //-----------------------------------------------------------------
1928 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1929 //-----------------------------------------------------------------
1930
de61d5d5 1931 AliTPCFastMatrix &signal = *m;
8c555625 1932
1933 // lop over nonzero digits
1934
73042f01 1935 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
1936 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 1937
1938
921bf71a 1939 // accept only the contribution larger than 500 electrons (1/2 s_noise)
1940
cc80f89e 1941 if(signal(ip,it)<0.5) continue;
921bf71a 1942
1943
73042f01 1944 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 1945
73042f01 1946 if(!pList[globalIndex]){
8c555625 1947
1948 //
1949 // Create new list (6 elements - 3 signals and 3 labels),
8c555625 1950 //
1951
73042f01 1952 pList[globalIndex] = new Float_t [6];
8c555625 1953
1954 // set list to -1
1955
73042f01 1956 *pList[globalIndex] = -1.;
1957 *(pList[globalIndex]+1) = -1.;
1958 *(pList[globalIndex]+2) = -1.;
1959 *(pList[globalIndex]+3) = -1.;
1960 *(pList[globalIndex]+4) = -1.;
1961 *(pList[globalIndex]+5) = -1.;
8c555625 1962
1963
73042f01 1964 *pList[globalIndex] = label;
1965 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 1966 }
1967 else{
1968
1969 // check the signal magnitude
1970
73042f01 1971 Float_t highest = *(pList[globalIndex]+3);
1972 Float_t middle = *(pList[globalIndex]+4);
1973 Float_t lowest = *(pList[globalIndex]+5);
8c555625 1974
1975 //
1976 // compare the new signal with already existing list
1977 //
1978
1979 if(signal(ip,it)<lowest) continue; // neglect this track
1980
1981 //
1982
1983 if (signal(ip,it)>highest){
73042f01 1984 *(pList[globalIndex]+5) = middle;
1985 *(pList[globalIndex]+4) = highest;
1986 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 1987
73042f01 1988 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1989 *(pList[globalIndex]+1) = *pList[globalIndex];
1990 *pList[globalIndex] = label;
8c555625 1991 }
1992 else if (signal(ip,it)>middle){
73042f01 1993 *(pList[globalIndex]+5) = middle;
1994 *(pList[globalIndex]+4) = signal(ip,it);
8c555625 1995
73042f01 1996 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1997 *(pList[globalIndex]+1) = label;
8c555625 1998 }
1999 else{
73042f01 2000 *(pList[globalIndex]+5) = signal(ip,it);
2001 *(pList[globalIndex]+2) = label;
8c555625 2002 }
2003 }
2004
2005 } // end of loop over pads
2006 } // end of loop over time bins
2007
2008
2009
8c555625 2010}//end of GetList
2011//___________________________________________________________________
2012void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
2013 Stat_t ntracks,TObjArray **row)
2014{
2015
2016 //-----------------------------------------------------------------
2017 // Prepares the sector digitization, creates the vectors of
2018 // tracks for each row of this sector. The track vector
2019 // contains the track label and the position of electrons.
2020 //-----------------------------------------------------------------
2021
2022 //-----------------------------------------------------------------
2023 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2024 //-----------------------------------------------------------------
2025
cc80f89e 2026 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 2027 Int_t i;
cc80f89e 2028 Float_t xyz[4];
8c555625 2029
2030 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 2031 //MI change
2032 TBranch * branch=0;
792bb11c 2033 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 2034 else branch = TH->GetBranch("TPC");
2035
8c555625 2036
2037 //----------------------------------------------
2038 // Create TObjArray-s, one for each row,
de61d5d5 2039 // each TObjArray will store the AliTPCFastVectors
2040 // of electrons, one AliTPCFastVectors per each track.
8c555625 2041 //----------------------------------------------
fe4da5cc 2042
b584c7dd 2043 Int_t *nofElectrons = new Int_t [nrows+2]; // electron counter for each row
2044 AliTPCFastVector **tracks = new AliTPCFastVector* [nrows+2]; //pointers to the track vectors
de61d5d5 2045
b584c7dd 2046 for(i=0; i<nrows+2; i++){
8c555625 2047 row[i] = new TObjArray;
f74bb6f5 2048 nofElectrons[i]=0;
2049 tracks[i]=0;
8c555625 2050 }
8c555625 2051
37831078 2052
2053
8c555625 2054 //--------------------------------------------------------------------
2055 // Loop over tracks, the "track" contains the full history
2056 //--------------------------------------------------------------------
2057
2058 Int_t previousTrack,currentTrack;
2059 previousTrack = -1; // nothing to store so far!
2060
2061 for(Int_t track=0;track<ntracks;track++){
39c8eb58 2062 Bool_t isInSector=kTRUE;
8c555625 2063 ResetHits();
792bb11c 2064 isInSector = TrackInVolume(isec,track);
39c8eb58 2065 if (!isInSector) continue;
2066 //MI change
2067 branch->GetEntry(track); // get next track
2068
2069 //M.I. changes
8c555625 2070
39c8eb58 2071 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 2072
2073 //--------------------------------------------------------------
2074 // Loop over hits
2075 //--------------------------------------------------------------
2076
8c555625 2077
39c8eb58 2078 while(tpcHit){
fe4da5cc 2079
8c555625 2080 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 2081 if(sector != isec){
2082 tpcHit = (AliTPChit*) NextHit();
2083 continue;
2084 }
8c555625 2085
94de3818 2086 currentTrack = tpcHit->Track(); // track number
39c8eb58 2087
2088
8c555625 2089 if(currentTrack != previousTrack){
2090
2091 // store already filled fTrack
2092
b584c7dd 2093 for(i=0;i<nrows+2;i++){
8c555625 2094 if(previousTrack != -1){
73042f01 2095 if(nofElectrons[i]>0){
de61d5d5 2096 AliTPCFastVector &v = *tracks[i];
8c555625 2097 v(0) = previousTrack;
73042f01 2098 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2099 row[i]->Add(tracks[i]);
8c555625 2100 }
2101 else{
de61d5d5 2102 delete tracks[i]; // delete empty AliTPCFastVector
cc80f89e 2103 tracks[i]=0;
8c555625 2104 }
2105 }
2106
73042f01 2107 nofElectrons[i]=0;
de61d5d5 2108 tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors for the next fTrack
8c555625 2109
2110 } // end of loop over rows
2111
2112 previousTrack=currentTrack; // update track label
2113 }
2114
73042f01 2115 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 2116
2117 //---------------------------------------------------
2118 // Calculate the electron attachment probability
2119 //---------------------------------------------------
2120
cc80f89e 2121
94de3818 2122 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
cc80f89e 2123 /fTPCParam->GetDriftV();
8c555625 2124 // in microseconds!
73042f01 2125 Float_t attProb = fTPCParam->GetAttCoef()*
8c555625 2126 fTPCParam->GetOxyCont()*time; // fraction!
2127
fe4da5cc 2128 //-----------------------------------------------
8c555625 2129 // Loop over electrons
fe4da5cc 2130 //-----------------------------------------------
cc80f89e 2131 Int_t index[3];
2132 index[1]=isec;
73042f01 2133 for(Int_t nel=0;nel<qI;nel++){
8c555625 2134 // skip if electron lost due to the attachment
73042f01 2135 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
94de3818 2136 xyz[0]=tpcHit->X();
2137 xyz[1]=tpcHit->Y();
1705494b 2138 xyz[2]=tpcHit->Z();
2139 //
2140 // protection for the nonphysical avalanche size (10**6 maximum)
2141 //
710dacf5 2142 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
2143 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
cc80f89e 2144 index[0]=1;
2145
b584c7dd 2146 TransportElectron(xyz,index);
73042f01 2147 Int_t rowNumber;
b584c7dd 2148 fTPCParam->GetPadRow(xyz,index);
2149 // row 0 - cross talk from the innermost row
2150 // row fNRow+1 cross talk from the outermost row
2151 rowNumber = index[2]+1;
cc80f89e 2152 //transform position to local digit coordinates
2153 //relative to nearest pad row
b584c7dd 2154 if ((rowNumber<0)||rowNumber>fTPCParam->GetNRow(isec)+1) continue;
2155 Float_t x1,y1;
f03e3423 2156 if (isec <fTPCParam->GetNInnerSector()) {
2157 x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
2158 y1 = fTPCParam->GetYInner(rowNumber);
2159 }
2160 else{
2161 x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
2162 y1 = fTPCParam->GetYOuter(rowNumber);
2163 }
e8f678d7 2164 // gain inefficiency at the wires edges - linear
f03e3423 2165 x1=TMath::Abs(x1);
e8f678d7 2166 y1-=1.;
2167 if(x1>y1) xyz[3]*=TMath::Max(1.e-6,(y1-x1+1.));
2168
73042f01 2169 nofElectrons[rowNumber]++;
8c555625 2170 //----------------------------------
fe4da5cc 2171 // Expand vector if necessary
8c555625 2172 //----------------------------------
73042f01 2173 if(nofElectrons[rowNumber]>120){
2174 Int_t range = tracks[rowNumber]->GetNrows();
2175 if((nofElectrons[rowNumber])>(range-1)/4){
cc80f89e 2176
73042f01 2177 tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
fe4da5cc 2178 }
2179 }
2180
de61d5d5 2181 AliTPCFastVector &v = *tracks[rowNumber];
73042f01 2182 Int_t idx = 4*nofElectrons[rowNumber]-3;
de61d5d5 2183 Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
2184 memcpy(position,xyz,4*sizeof(Float_t));
2185
8c555625 2186 } // end of loop over electrons
39c8eb58 2187
2188 tpcHit = (AliTPChit*)NextHit();
8c555625 2189
2190 } // end of loop over hits
2191 } // end of loop over tracks
2192
2193 //
2194 // store remaining track (the last one) if not empty
2195 //
2196
b584c7dd 2197 for(i=0;i<nrows+2;i++){
73042f01 2198 if(nofElectrons[i]>0){
de61d5d5 2199 AliTPCFastVector &v = *tracks[i];
8c555625 2200 v(0) = previousTrack;
73042f01 2201 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2202 row[i]->Add(tracks[i]);
fe4da5cc 2203 }
2204 else{
cc80f89e 2205 delete tracks[i];
2206 tracks[i]=0;
8c555625 2207 }
2208 }
2209
cc80f89e 2210 delete [] tracks;
73042f01 2211 delete [] nofElectrons;
8c555625 2212
8c555625 2213
cc80f89e 2214} // end of MakeSector
8c555625 2215
fe4da5cc 2216
2217//_____________________________________________________________________________
2218void AliTPC::Init()
2219{
2220 //
2221 // Initialise TPC detector after definition of geometry
2222 //
2223 Int_t i;
2224 //
9e1a0ddb 2225 if(fDebug) {
2226 printf("\n%s: ",ClassName());
2227 for(i=0;i<35;i++) printf("*");
2228 printf(" TPC_INIT ");
2229 for(i=0;i<35;i++) printf("*");
2230 printf("\n%s: ",ClassName());
2231 //
2232 for(i=0;i<80;i++) printf("*");
2233 printf("\n");
2234 }
fe4da5cc 2235}
2236
2237//_____________________________________________________________________________
88cb7938 2238void AliTPC::MakeBranch(Option_t* option)
fe4da5cc 2239{
2240 //
2241 // Create Tree branches for the TPC.
2242 //
88cb7938 2243 if(GetDebug()) Info("MakeBranch","");
fe4da5cc 2244 Int_t buffersize = 4000;
2245 char branchname[10];
2246 sprintf(branchname,"%s",GetName());
88cb7938 2247
2248 const char *h = strstr(option,"H");
fe4da5cc 2249
88cb7938 2250 if ( h && (fHitType<=1) && (fHits == 0x0)) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
2251
2252 AliDetector::MakeBranch(option);
fe4da5cc 2253
5cf7bbad 2254 const char *d = strstr(option,"D");
88cb7938 2255
2256 if (fDigits && fLoader->TreeD() && d)
2257 {
2258 MakeBranchInTree(gAlice->TreeD(), branchname, &fDigits, buffersize, 0);
2259 }
fe4da5cc 2260
88cb7938 2261 if (fHitType>1) MakeBranch2(option,0); // MI change 14.09.2000
fe4da5cc 2262}
2263
2264//_____________________________________________________________________________
2265void AliTPC::ResetDigits()
2266{
2267 //
2268 // Reset number of digits and the digits array for this detector
fe4da5cc 2269 //
2270 fNdigits = 0;
cc80f89e 2271 if (fDigits) fDigits->Clear();
fe4da5cc 2272}
2273
2274//_____________________________________________________________________________
2275void AliTPC::SetSecAL(Int_t sec)
2276{
8c555625 2277 //---------------------------------------------------
fe4da5cc 2278 // Activate/deactivate selection for lower sectors
8c555625 2279 //---------------------------------------------------
2280
2281 //-----------------------------------------------------------------
2282 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2283 //-----------------------------------------------------------------
fe4da5cc 2284 fSecAL = sec;
2285}
2286
2287//_____________________________________________________________________________
2288void AliTPC::SetSecAU(Int_t sec)
2289{
8c555625 2290 //----------------------------------------------------
fe4da5cc 2291 // Activate/deactivate selection for upper sectors
8c555625 2292 //---------------------------------------------------
2293
2294 //-----------------------------------------------------------------
2295 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2296 //-----------------------------------------------------------------
fe4da5cc 2297 fSecAU = sec;
2298}
2299
2300//_____________________________________________________________________________
2301void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
2302{
8c555625 2303 //----------------------------------------
fe4da5cc 2304 // Select active lower sectors
8c555625 2305 //----------------------------------------
2306
2307 //-----------------------------------------------------------------
2308 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2309 //-----------------------------------------------------------------
2310
fe4da5cc 2311 fSecLows[0] = s1;
2312 fSecLows[1] = s2;
2313 fSecLows[2] = s3;
2314 fSecLows[3] = s4;
2315 fSecLows[4] = s5;
2316 fSecLows[5] = s6;
2317}
2318
2319//_____________________________________________________________________________
2320void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
2321 Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
2322 Int_t s11 , Int_t s12)
2323{
8c555625 2324 //--------------------------------
fe4da5cc 2325 // Select active upper sectors
8c555625 2326 //--------------------------------
2327
2328 //-----------------------------------------------------------------
2329 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2330 //-----------------------------------------------------------------
2331
fe4da5cc 2332 fSecUps[0] = s1;
2333 fSecUps[1] = s2;
2334 fSecUps[2] = s3;
2335 fSecUps[3] = s4;
2336 fSecUps[4] = s5;
2337 fSecUps[5] = s6;
2338 fSecUps[6] = s7;
2339 fSecUps[7] = s8;
2340 fSecUps[8] = s9;
2341 fSecUps[9] = s10;
2342 fSecUps[10] = s11;
2343 fSecUps[11] = s12;
2344}
2345
2346//_____________________________________________________________________________
2347void AliTPC::SetSens(Int_t sens)
2348{
8c555625 2349
2350 //-------------------------------------------------------------
2351 // Activates/deactivates the sensitive strips at the center of
2352 // the pad row -- this is for the space-point resolution calculations
2353 //-------------------------------------------------------------
2354
2355 //-----------------------------------------------------------------
2356 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2357 //-----------------------------------------------------------------
2358
fe4da5cc 2359 fSens = sens;
2360}
2b06d5c3 2361
4b0fdcad 2362
73042f01 2363void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2364{
73042f01 2365 // choice of the TPC side
2366
4b0fdcad 2367 fSide = side;
2368
2369}
1283eee5 2370//____________________________________________________________________________
2371void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
2372 Float_t p2,Float_t p3)
2373{
fe4da5cc 2374
73042f01 2375 // gax mixture definition
2376
1283eee5 2377 fNoComp = nc;
2378
2379 fMixtComp[0]=c1;
2380 fMixtComp[1]=c2;
2381 fMixtComp[2]=c3;
2382
2383 fMixtProp[0]=p1;
2384 fMixtProp[1]=p2;
2385 fMixtProp[2]=p3;
2386
2387
2388}
fe4da5cc 2389//_____________________________________________________________________________
cc80f89e 2390
2391void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2392{
2393 //
2394 // electron transport taking into account:
2395 // 1. diffusion,
2396 // 2.ExB at the wires
2397 // 3. nonisochronity
2398 //
2399 // xyz and index must be already transformed to system 1
2400 //
2401
2402 fTPCParam->Transform1to2(xyz,index);
2403
2404 //add diffusion
2405 Float_t driftl=xyz[2];
2406 if(driftl<0.01) driftl=0.01;
2407 driftl=TMath::Sqrt(driftl);
73042f01 2408 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2409 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2410 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2411 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2412 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2413
2414 // ExB
2415
2416 if (fTPCParam->GetMWPCReadout()==kTRUE){
b584c7dd 2417 Float_t dx = fTPCParam->Transform2to2NearestWire(xyz,index);
cc80f89e 2418 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2419 }
b584c7dd 2420 //add nonisochronity (not implemented yet)
cc80f89e 2421}
fe4da5cc 2422
fe4da5cc 2423ClassImp(AliTPCdigit)
2424
2425//_____________________________________________________________________________
2426AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
2427 AliDigit(tracks)
2428{
2429 //
2430 // Creates a TPC digit object
2431 //
2432 fSector = digits[0];
2433 fPadRow = digits[1];
2434 fPad = digits[2];
2435 fTime = digits[3];
2436 fSignal = digits[4];
2437}
2438
2439
2440ClassImp(AliTPChit)
2441
2442//_____________________________________________________________________________
2443AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2444AliHit(shunt,track)
2445{
2446 //
2447 // Creates a TPC hit object
2448 //
2449 fSector = vol[0];
2450 fPadRow = vol[1];
2451 fX = hits[0];
2452 fY = hits[1];
2453 fZ = hits[2];
2454 fQ = hits[3];
2455}
2456
39c8eb58 2457//________________________________________________________________________
792bb11c 2458// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2459
176aff27 2460void AliTPC::MakeBranch2(Option_t *option,const char */*file*/)
39c8eb58 2461{
2462 //
2463 // Create a new branch in the current Root Tree
2464 // The branch of fHits is automatically split
2465 // MI change 14.09.2000
88cb7938 2466 if(GetDebug()) Info("MakeBranch2","");
792bb11c 2467 if (fHitType<2) return;
39c8eb58 2468 char branchname[10];
2469 sprintf(branchname,"%s2",GetName());
2470 //
2471 // Get the pointer to the header
5cf7bbad 2472 const char *cH = strstr(option,"H");
39c8eb58 2473 //
88cb7938 2474 if (fTrackHits && TreeH() && cH && fHitType&4)
2475 {
2476 if(GetDebug()) Info("MakeBranch2","Making branch for Type 4 Hits");
2477 TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,fBufferSize,99);
2478 }
792bb11c 2479
88cb7938 2480 if (fTrackHitsOld && TreeH() && cH && fHitType&2)
2481 {
2482 if(GetDebug()) Info("MakeBranch2","Making branch for Type 2 Hits");
792bb11c 2483 AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
88cb7938 2484 TreeH(),fBufferSize,99);
2485 TreeH()->GetListOfBranches()->Add(branch);
2486 }
39c8eb58 2487}
2488
2489void AliTPC::SetTreeAddress()
2490{
88cb7938 2491//Sets tree address for hits
2492 if (fHitType<=1)
2493 {
2494 if (fHits == 0x0 ) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
2495 AliDetector::SetTreeAddress();
2496 }
792bb11c 2497 if (fHitType>1) SetTreeAddress2();
39c8eb58 2498}
2499
2500void AliTPC::SetTreeAddress2()
2501{
2502 //
2503 // Set branch address for the TrackHits Tree
2504 //
88cb7938 2505 if(GetDebug()) Info("SetTreeAddress2","");
2506
39c8eb58 2507 TBranch *branch;
2508 char branchname[20];
2509 sprintf(branchname,"%s2",GetName());
2510 //
2511 // Branch address for hit tree
88cb7938 2512 TTree *treeH = TreeH();
792bb11c 2513 if ((treeH)&&(fHitType&4)) {
39c8eb58 2514 branch = treeH->GetBranch(branchname);
88cb7938 2515 if (branch)
2516 {
2517 branch->SetAddress(&fTrackHits);
f2a509af 2518 if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Setting");
88cb7938 2519 }
f2a509af 2520 else
2521 if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Failed (can not find branch)");
2522
39c8eb58 2523 }
792bb11c 2524 if ((treeH)&&(fHitType&2)) {
2525 branch = treeH->GetBranch(branchname);
88cb7938 2526 if (branch)
2527 {
2528 branch->SetAddress(&fTrackHitsOld);
f2a509af 2529 if (GetDebug()) Info("SetTreeAddress2","fHitType&2 Setting");
88cb7938 2530 }
f2a509af 2531 else if (GetDebug())
2532 Info("SetTreeAddress2","fHitType&2 Failed (can not find branch)");
792bb11c 2533 }
b6e0d3fe 2534 //set address to TREETR
88cb7938 2535
2536 TTree *treeTR = TreeTR();
b6e0d3fe 2537 if (treeTR && fTrackReferences) {
2538 branch = treeTR->GetBranch(GetName());
2539 if (branch) branch->SetAddress(&fTrackReferences);
2540 }
2541
39c8eb58 2542}
2543
2544void AliTPC::FinishPrimary()
2545{
792bb11c 2546 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
2547 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2548}
2549
2550
2551void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2552{
2553 //
2554 // add hit to the list
39c8eb58 2555 Int_t rtrack;
2556 if (fIshunt) {
5d12ce38 2557 int primary = gAlice->GetMCApp()->GetPrimary(track);
2558 gAlice->GetMCApp()->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2559 rtrack=primary;
2560 } else {
2561 rtrack=track;
5d12ce38 2562 gAlice->GetMCApp()->FlagTrack(track);
39c8eb58 2563 }
2564 //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
2565 //if (hit->fTrack!=rtrack)
2566 // cout<<"bad track number\n";
792bb11c 2567 if (fTrackHits && fHitType&4)
39c8eb58 2568 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
88cb7938 2569 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2570 if (fTrackHitsOld &&fHitType&2 )
2571 fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
88cb7938 2572 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2573
39c8eb58 2574}
2575
2576void AliTPC::ResetHits()
88cb7938 2577{
39c8eb58 2578 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2579 if (fHitType>1) ResetHits2();
39c8eb58 2580}
2581
2582void AliTPC::ResetHits2()
2583{
2584 //
2585 //reset hits
792bb11c 2586 if (fTrackHits && fHitType&4) fTrackHits->Clear();
2587 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
2588
39c8eb58 2589}
2590
2591AliHit* AliTPC::FirstHit(Int_t track)
2592{
792bb11c 2593 if (fHitType>1) return FirstHit2(track);
39c8eb58 2594 return AliDetector::FirstHit(track);
2595}
2596AliHit* AliTPC::NextHit()
2597{
9bdd974b 2598 //
2599 // gets next hit
2600 //
792bb11c 2601 if (fHitType>1) return NextHit2();
2602
39c8eb58 2603 return AliDetector::NextHit();
2604}
2605
2606AliHit* AliTPC::FirstHit2(Int_t track)
2607{
2608 //
2609 // Initialise the hit iterator
2610 // Return the address of the first hit for track
2611 // If track>=0 the track is read from disk
2612 // while if track<0 the first hit of the current
2613 // track is returned
2614 //
2615 if(track>=0) {
2616 gAlice->ResetHits();
88cb7938 2617 TreeH()->GetEvent(track);
39c8eb58 2618 }
2619 //
792bb11c 2620 if (fTrackHits && fHitType&4) {
39c8eb58 2621 fTrackHits->First();
2622 return fTrackHits->GetHit();
2623 }
792bb11c 2624 if (fTrackHitsOld && fHitType&2) {
2625 fTrackHitsOld->First();
2626 return fTrackHitsOld->GetHit();
2627 }
2628
39c8eb58 2629 else return 0;
2630}
2631
2632AliHit* AliTPC::NextHit2()
2633{
2634 //
2635 //Return the next hit for the current track
2636
792bb11c 2637
2638 if (fTrackHitsOld && fHitType&2) {
2639 fTrackHitsOld->Next();
2640 return fTrackHitsOld->GetHit();
2641 }
39c8eb58 2642 if (fTrackHits) {
2643 fTrackHits->Next();
2644 return fTrackHits->GetHit();
2645 }
2646 else
2647 return 0;
2648}
2649
2650void AliTPC::LoadPoints(Int_t)
2651{
2652 //
2653 Int_t a = 0;
f2e8b846 2654 /* if(fHitType==1) return AliDetector::LoadPoints(a);
39c8eb58 2655 LoadPoints2(a);
f2e8b846 2656 */
2657 if(fHitType==1) AliDetector::LoadPoints(a);
2658 else LoadPoints2(a);
2659
39c8eb58 2660 // LoadPoints3(a);
2661
2662}
2663
2664
2665void AliTPC::RemapTrackHitIDs(Int_t *map)
2666{
9bdd974b 2667 //
2668 // remapping
2669 //
39c8eb58 2670 if (!fTrackHits) return;
39c8eb58 2671
792bb11c 2672 if (fTrackHitsOld && fHitType&2){
2673 AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2674 for (UInt_t i=0;i<arr->GetSize();i++){
2675 AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2676 info->fTrackID = map[info->fTrackID];
2677 }
2678 }
2679 if (fTrackHitsOld && fHitType&4){
2680 TClonesArray * arr = fTrackHits->GetArray();;
2681 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2682 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2683 info->fTrackID = map[info->fTrackID];
2684 }
2685 }
39c8eb58 2686}
2687
792bb11c 2688Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2689{
2690 //return bool information - is track in given volume
2691 //load only part of the track information
2692 //return true if current track is in volume
2693 //
2694 // return kTRUE;
2695 if (fTrackHitsOld && fHitType&2) {
88cb7938 2696 TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
792bb11c 2697 br->GetEvent(track);
2698 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2699 for (UInt_t j=0;j<ar->GetSize();j++){
2700 if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2701 }
2702 }
2703
2704 if (fTrackHits && fHitType&4) {
88cb7938 2705 TBranch * br1 = TreeH()->GetBranch("fVolumes");
2706 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 2707 br2->GetEvent(track);
2708 br1->GetEvent(track);
2709 Int_t *volumes = fTrackHits->GetVolumes();
2710 Int_t nvolumes = fTrackHits->GetNVolumes();
2711 if (!volumes && nvolumes>0) {
2712 printf("Problematic track\t%d\t%d",track,nvolumes);
2713 return kFALSE;
2714 }
2715 for (Int_t j=0;j<nvolumes; j++)
2716 if (volumes[j]==id) return kTRUE;
2717 }
2718
2719 if (fHitType&1) {
88cb7938 2720 TBranch * br = TreeH()->GetBranch("fSector");
792bb11c 2721 br->GetEvent(track);
2722 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2723 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2724 }
2725 }
2726 return kFALSE;
2727
2728}
39c8eb58 2729
2730//_____________________________________________________________________________
2731void AliTPC::LoadPoints2(Int_t)
2732{
2733 //
2734 // Store x, y, z of all hits in memory
2735 //
792bb11c 2736 if (fTrackHits == 0 && fTrackHitsOld==0) return;
39c8eb58 2737 //
792bb11c 2738 Int_t nhits =0;
2739 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
2740 if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
2741
39c8eb58 2742 if (nhits == 0) return;
5d12ce38 2743 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2744 if (fPoints == 0) fPoints = new TObjArray(tracks);
2745 AliHit *ahit;
2746 //
2747 Int_t *ntrk=new Int_t[tracks];
2748 Int_t *limi=new Int_t[tracks];
2749 Float_t **coor=new Float_t*[tracks];
2750 for(Int_t i=0;i<tracks;i++) {
2751 ntrk[i]=0;
2752 coor[i]=0;
2753 limi[i]=0;
2754 }
2755 //
2756 AliPoints *points = 0;
2757 Float_t *fp=0;
2758 Int_t trk;
2759 Int_t chunk=nhits/4+1;
2760 //
2761 // Loop over all the hits and store their position
2762 //
2763 ahit = FirstHit2(-1);
39c8eb58 2764 while (ahit){
39c8eb58 2765 trk=ahit->GetTrack();
2766 if(ntrk[trk]==limi[trk]) {
2767 //
2768 // Initialise a new track
2769 fp=new Float_t[3*(limi[trk]+chunk)];
2770 if(coor[trk]) {
2771 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2772 delete [] coor[trk];
2773 }
2774 limi[trk]+=chunk;
2775 coor[trk] = fp;
2776 } else {
2777 fp = coor[trk];
2778 }
2779 fp[3*ntrk[trk] ] = ahit->X();
2780 fp[3*ntrk[trk]+1] = ahit->Y();
2781 fp[3*ntrk[trk]+2] = ahit->Z();
2782 ntrk[trk]++;
2783 ahit = NextHit2();
2784 }
792bb11c 2785
2786
2787
39c8eb58 2788 //
2789 for(trk=0; trk<tracks; ++trk) {
2790 if(ntrk[trk]) {
2791 points = new AliPoints();
2792 points->SetMarkerColor(GetMarkerColor());
2793 points->SetMarkerSize(GetMarkerSize());
2794 points->SetDetector(this);
2795 points->SetParticle(trk);
2796 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
2797 fPoints->AddAt(points,trk);
2798 delete [] coor[trk];
2799 coor[trk]=0;
2800 }
2801 }
2802 delete [] coor;
2803 delete [] ntrk;
2804 delete [] limi;
2805}
2806
2807
2808//_____________________________________________________________________________
2809void AliTPC::LoadPoints3(Int_t)
2810{
2811 //
2812 // Store x, y, z of all hits in memory
2813 // - only intersection point with pad row
2814 if (fTrackHits == 0) return;
2815 //
2816 Int_t nhits = fTrackHits->GetEntriesFast();
2817 if (nhits == 0) return;
5d12ce38 2818 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2819 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
2820 fPoints->Expand(2*tracks);
2821 AliHit *ahit;
2822 //
2823 Int_t *ntrk=new Int_t[tracks];
2824 Int_t *limi=new Int_t[tracks];
2825 Float_t **coor=new Float_t*[tracks];
2826 for(Int_t i=0;i<tracks;i++) {
2827 ntrk[i]=0;
2828 coor[i]=0;
2829 limi[i]=0;
2830 }
2831 //
2832 AliPoints *points = 0;
2833 Float_t *fp=0;
2834 Int_t trk;
2835 Int_t chunk=nhits/4+1;
2836 //
2837 // Loop over all the hits and store their position
2838 //
2839 ahit = FirstHit2(-1);
2840 //for (Int_t hit=0;hit<nhits;hit++) {
2841
2842 Int_t lastrow = -1;
2843 while (ahit){
2844 // ahit = (AliHit*)fHits->UncheckedAt(hit);
2845 trk=ahit->GetTrack();
2846 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
2847 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
2848 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2849 if (currentrow!=lastrow){
2850 lastrow = currentrow;
2851 //later calculate intersection point
2852 if(ntrk[trk]==limi[trk]) {
2853 //
2854 // Initialise a new track
2855 fp=new Float_t[3*(limi[trk]+chunk)];
2856 if(coor[trk]) {
2857 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2858 delete [] coor[trk];
2859 }
2860 limi[trk]+=chunk;
2861 coor[trk] = fp;
2862 } else {
2863 fp = coor[trk];
2864 }
2865 fp[3*ntrk[trk] ] = ahit->X();
2866 fp[3*ntrk[trk]+1] = ahit->Y();
2867 fp[3*ntrk[trk]+2] = ahit->Z();
2868 ntrk[trk]++;
2869 }
2870 ahit = NextHit2();
2871 }
2872
2873 //
2874 for(trk=0; trk<tracks; ++trk) {
2875 if(ntrk[trk]) {
2876 points = new AliPoints();
2877 points->SetMarkerColor(GetMarkerColor()+1);
2878 points->SetMarkerStyle(5);
2879 points->SetMarkerSize(0.2);
2880 points->SetDetector(this);
2881 points->SetParticle(trk);
2882 // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
2883 points->SetPolyMarker(ntrk[trk],coor[trk],30);
2884 fPoints->AddAt(points,tracks+trk);
2885 delete [] coor[trk];
2886 coor[trk]=0;
2887 }
2888 }
2889 delete [] coor;
2890 delete [] ntrk;
2891 delete [] limi;
2892}
2893
2894
2895
176aff27 2896void AliTPC::FindTrackHitsIntersection(TClonesArray * /*arr*/)
39c8eb58 2897{
2898
2899 //
2900 //fill clones array with intersection of current point with the
2901 //middle of the row
2902 Int_t sector;
2903 Int_t ipart;
2904
2905 const Int_t kcmaxhits=30000;
de61d5d5 2906 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
2907 AliTPCFastVector & xxx = *xxxx;
39c8eb58 2908 Int_t maxhits = kcmaxhits;
2909
2910 //
2911 AliTPChit * tpcHit=0;
2912 tpcHit = (AliTPChit*)FirstHit2(-1);
2913 Int_t currentIndex=0;
2914 Int_t lastrow=-1; //last writen row
2915
2916 while (tpcHit){
2917 if (tpcHit==0) continue;
2918 sector=tpcHit->fSector; // sector number
2919 ipart=tpcHit->Track();
2920
2921 //find row number
2922
2923 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
2924 Int_t index[3]={1,sector,0};
2925 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2926 if (currentrow<0) continue;
2927 if (lastrow<0) lastrow=currentrow;
2928 if (currentrow==lastrow){
2929 if ( currentIndex>=maxhits){
2930 maxhits+=kcmaxhits;
2931 xxx.ResizeTo(4*maxhits);
2932 }
2933 xxx(currentIndex*4)=x[0];
2934 xxx(currentIndex*4+1)=x[1];
2935 xxx(currentIndex*4+2)=x[2];
2936 xxx(currentIndex*4+3)=tpcHit->fQ;
2937 currentIndex++;
2938 }
2939 else
2940 if (currentIndex>2){
2941 Float_t sumx=0;
2942 Float_t sumx2=0;
2943 Float_t sumx3=0;
2944 Float_t sumx4=0;
2945 Float_t sumy=0;
2946 Float_t sumxy=0;
2947 Float_t sumx2y=0;
2948 Float_t sumz=0;
2949 Float_t sumxz=0;
2950 Float_t sumx2z=0;
2951 Float_t sumq=0;
2952 for (Int_t index=0;index<currentIndex;index++){
2953 Float_t x,x2,x3,x4;
2954 x=x2=x3=x4=xxx(index*4);
2955 x2*=x;
2956 x3*=x2;
2957 x4*=x3;
2958 sumx+=x;
2959 sumx2+=x2;
2960 sumx3+=x3;
2961 sumx4+=x4;
2962 sumy+=xxx(index*4+1);
2963 sumxy+=xxx(index*4+1)*x;
2964 sumx2y+=xxx(index*4+1)*x2;
2965 sumz+=xxx(index*4+2);
2966 sumxz+=xxx(index*4+2)*x;
2967 sumx2z+=xxx(index*4+2)*x2;
2968 sumq+=xxx(index*4+3);
2969 }
2970 Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2;
2971 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
2972 sumx2*(sumx*sumx3-sumx2*sumx2);
2973
2974 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
2975 sumx2*(sumxy*sumx3-sumx2y*sumx2);
2976 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
2977 sumx2*(sumxz*sumx3-sumx2z*sumx2);
2978
2979 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
2980 sumx2*(sumx*sumx2y-sumx2*sumxy);
2981 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
2982 sumx2*(sumx*sumx2z-sumx2*sumxz);
2983
2984 Float_t y=detay/det+centralPad;
2985 Float_t z=detaz/det;
2986 Float_t by=detby/det; //y angle
2987 Float_t bz=detbz/det; //z angle
2988 sumy/=Float_t(currentIndex);
2989 sumz/=Float_t(currentIndex);
2990
2991 AliComplexCluster cl;
2992 cl.fX=z;
2993 cl.fY=y;
2994 cl.fQ=sumq;
2995 cl.fSigmaX2=bz;
2996 cl.fSigmaY2=by;
2997 cl.fTracks[0]=ipart;
2998
2999 AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
3000 if (row!=0) row->InsertCluster(&cl);
3001 currentIndex=0;
3002 lastrow=currentrow;
3003 } //end of calculating cluster for given row
3004
3005 } // end of loop over hits
3006 xxxx->Delete();
39c8eb58 3007
3008}
afc42102 3009//_______________________________________________________________________________
a62d28a2 3010void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
afc42102 3011{
a62d28a2 3012 // produces rec points from digits and writes them on the root file
3013 // AliTPCclusters.root
3014
3015 TDirectory *cwd = gDirectory;
3016
3017
7a09f434 3018 AliTPCParamSR *dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60");
3019 if(dig){
3020 printf("You are running 2 pad-length geom hits with 3 pad-length geom digits\n");
3021 delete dig;
3022 dig = new AliTPCParamSR();
3023 }
3024 else
3025 {
3026 dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
3027 }
3028 if(!dig){
3029 printf("No TPC parameters found\n");
3030 exit(3);
3031 }
3032
a62d28a2 3033 SetParam(dig);
3034 cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
3035 TFile *out;
3036 if(!gSystem->Getenv("CONFIG_FILE")){
3037 out=TFile::Open("AliTPCclusters.root","recreate");
3038 }
3039 else {
3040 const char *tmp1;
3041 const char *tmp2;
3042 char tmp3[80];
3043 tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
3044 tmp2=gSystem->Getenv("CONFIG_OUTDIR");
3045 sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
3046 out=TFile::Open(tmp3,"recreate");
3047 }
3048
3049 TStopwatch timer;
3050 cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
3051 timer.Start();
3052 cwd->cd();
3053 for(Int_t iev=firstevent;iev<lastevent+1;iev++){
3054
3055 printf("Processing event %d\n",iev);
88cb7938 3056 Digits2Clusters(iev);
a62d28a2 3057 }
3058 cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
3059 timer.Stop();
3060 timer.Print();
3061 out->Close();
3062 cwd->cd();
3063
3064
afc42102 3065}
42157e55 3066
88cb7938 3067AliLoader* AliTPC::MakeLoader(const char* topfoldername)
3068{
f2a509af 3069//Makes TPC loader
88cb7938 3070 fLoader = new AliTPCLoader(GetName(),topfoldername);
88cb7938 3071 return fLoader;
3072}
3073
42157e55 3074////////////////////////////////////////////////////////////////////////
3075AliTPCParam* AliTPC::LoadTPCParam(TFile *file) {
3076//
3077// load TPC paarmeters from a given file or create new if the object
3078// is not found there
88cb7938 3079// 12/05/2003 This method should be moved to the AliTPCLoader
3080// and one has to decide where to store the TPC parameters
3081// M.Kowalski
42157e55 3082 char paramName[50];
3083 sprintf(paramName,"75x40_100x60_150x60");
3084 AliTPCParam *paramTPC=(AliTPCParam*)file->Get(paramName);
3085 if (paramTPC) {
3086 cout<<"TPC parameters "<<paramName<<" found."<<endl;
3087 } else {
3088 cerr<<"TPC parameters not found. Create new (they may be incorrect)."
3089 <<endl;
3090 paramTPC = new AliTPCParamSR;
3091 }
3092 return paramTPC;
3093
3094// the older version of parameters can be accessed with this code.
3095// In some cases, we have old parameters saved in the file but
3096// digits were created with new parameters, it can be distinguish
3097// by the name of TPC TreeD. The code here is just for the case
3098// we would need to compare with old data, uncomment it if needed.
3099//
3100// char paramName[50];
3101// sprintf(paramName,"75x40_100x60");
3102// AliTPCParam *paramTPC=(AliTPCParam*)in->Get(paramName);
3103// if (paramTPC) {
3104// cout<<"TPC parameters "<<paramName<<" found."<<endl;
3105// } else {
3106// sprintf(paramName,"75x40_100x60_150x60");
3107// paramTPC=(AliTPCParam*)in->Get(paramName);
3108// if (paramTPC) {
3109// cout<<"TPC parameters "<<paramName<<" found."<<endl;
3110// } else {
3111// cerr<<"TPC parameters not found. Create new (they may be incorrect)."
3112// <<endl;
3113// paramTPC = new AliTPCParamSR;
3114// }
3115// }
3116// return paramTPC;
3117
3118}
3119
85a5290f 3120
3121//____________________________________________________________________________
7138dcae 3122Double_t SigmaY2(Double_t r, Double_t tgl, Double_t pt)
3123{
3124 //
85a5290f 3125 // Parametrised error of the cluster reconstruction (pad direction)
7138dcae 3126 //
3127 // Sigma rphi
3128 const Float_t kArphi=0.41818e-2;
3129 const Float_t kBrphi=0.17460e-4;
3130 const Float_t kCrphi=0.30993e-2;
3131 const Float_t kDrphi=0.41061e-3;
85a5290f 3132
7138dcae 3133 pt=TMath::Abs(pt)*1000.;
3134 Double_t x=r/pt;
3135 tgl=TMath::Abs(tgl);
3136 Double_t s=kArphi - kBrphi*r*tgl + kCrphi*x*x + kDrphi*x;
3137 if (s<0.4e-3) s=0.4e-3;
3138 s*=1.3; //Iouri Belikov
3139
3140 return s;
3141}
3142
85a5290f 3143
3144//____________________________________________________________________________
3145Double_t SigmaZ2(Double_t r, Double_t tgl)
7138dcae 3146{
3147 //
3148 // Parametrised error of the cluster reconstruction (drift direction)
3149 //
3150 // Sigma z
3151 const Float_t kAz=0.39614e-2;
3152 const Float_t kBz=0.22443e-4;
3153 const Float_t kCz=0.51504e-1;
85a5290f 3154
7138dcae 3155
3156 tgl=TMath::Abs(tgl);
3157 Double_t s=kAz - kBz*r*tgl + kCz*tgl*tgl;
3158 if (s<0.4e-3) s=0.4e-3;
3159 s*=1.3; //Iouri Belikov
3160
3161 return s;
3162}
85a5290f 3163