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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"
39c8eb58 81
82
fe4da5cc 83ClassImp(AliTPC)
84
de61d5d5 85//_____________________________________________________________________________
86// helper class for fast matrix and vector manipulation - no range checking
87// origin - Marian Ivanov
88
89class AliTPCFastMatrix : public TMatrix {
90public :
91 AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb);
92 inline Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
93 inline Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
94};
95
96AliTPCFastMatrix::AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb):
97 TMatrix(row_lwb, row_upb,col_lwb,col_upb)
98 {
99 };
100//_____________________________________________________________________________
101class AliTPCFastVector : public TVector {
102public :
103 AliTPCFastVector(Int_t size);
b6e0d3fe 104 virtual ~AliTPCFastVector(){;}
de61d5d5 105 inline Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
b6e0d3fe 106
de61d5d5 107};
108
109AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
110};
111
fe4da5cc 112//_____________________________________________________________________________
113AliTPC::AliTPC()
114{
115 //
116 // Default constructor
117 //
118 fIshunt = 0;
fe4da5cc 119 fHits = 0;
120 fDigits = 0;
fe4da5cc 121 fNsectors = 0;
cc80f89e 122 fDigitsArray = 0;
123 fClustersArray = 0;
afc42102 124 fDefaults = 0;
792bb11c 125 fTrackHits = 0;
126 fTrackHitsOld = 0;
da33556f 127 fHitType = 2; //default CONTAINERS - based on ROOT structure
407ff276 128 fTPCParam = 0;
129 fNoiseTable = 0;
792bb11c 130 fActiveSectors =0;
407ff276 131
fe4da5cc 132}
133
134//_____________________________________________________________________________
135AliTPC::AliTPC(const char *name, const char *title)
136 : AliDetector(name,title)
137{
138 //
139 // Standard constructor
140 //
141
142 //
143 // Initialise arrays of hits and digits
144 fHits = new TClonesArray("AliTPChit", 176);
5d12ce38 145 gAlice->GetMCApp()->AddHitList(fHits);
cc80f89e 146 fDigitsArray = 0;
147 fClustersArray= 0;
afc42102 148 fDefaults = 0;
fe4da5cc 149 //
792bb11c 150 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 151 fTrackHits->SetHitPrecision(0.002);
152 fTrackHits->SetStepPrecision(0.003);
792bb11c 153 fTrackHits->SetMaxDistance(100);
154
155 fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
156 fTrackHitsOld->SetHitPrecision(0.002);
157 fTrackHitsOld->SetStepPrecision(0.003);
158 fTrackHitsOld->SetMaxDistance(100);
159
407ff276 160 fNoiseTable =0;
39c8eb58 161
da33556f 162 fHitType = 2;
792bb11c 163 fActiveSectors = 0;
39c8eb58 164 //
fe4da5cc 165 // Initialise counters
cc80f89e 166 fNsectors = 0;
cc80f89e 167
fe4da5cc 168 //
169 fIshunt = 0;
170 //
171 // Initialise color attributes
172 SetMarkerColor(kYellow);
73042f01 173
174 //
175 // Set TPC parameters
176 //
177
afc42102 178
179 if (!strcmp(title,"Default")) {
180 fTPCParam = new AliTPCParamSR;
73042f01 181 } else {
182 cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
183 fTPCParam=0;
184 }
185
fe4da5cc 186}
187
188//_____________________________________________________________________________
189AliTPC::~AliTPC()
190{
191 //
192 // TPC destructor
193 //
73042f01 194
fe4da5cc 195 fIshunt = 0;
196 delete fHits;
197 delete fDigits;
73042f01 198 delete fTPCParam;
39c8eb58 199 delete fTrackHits; //MI 15.09.2000
792bb11c 200 delete fTrackHitsOld; //MI 10.12.2001
407ff276 201 if (fNoiseTable) delete [] fNoiseTable;
202
fe4da5cc 203}
204
fe4da5cc 205//_____________________________________________________________________________
206void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
207{
208 //
209 // Add a hit to the list
210 //
39c8eb58 211 // TClonesArray &lhits = *fHits;
212 // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
213 if (fHitType&1){
214 TClonesArray &lhits = *fHits;
215 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
216 }
792bb11c 217 if (fHitType>1)
39c8eb58 218 AddHit2(track,vol,hits);
fe4da5cc 219}
88cb7938 220
fe4da5cc 221//_____________________________________________________________________________
222void AliTPC::BuildGeometry()
223{
cc80f89e 224
fe4da5cc 225 //
226 // Build TPC ROOT TNode geometry for the event display
227 //
73042f01 228 TNode *nNode, *nTop;
fe4da5cc 229 TTUBS *tubs;
230 Int_t i;
231 const int kColorTPC=19;
1283eee5 232 char name[5], title[25];
fe4da5cc 233 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 234 const Double_t kRaddeg=180./TMath::Pi();
235
1283eee5 236
73042f01 237 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
238 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 239
73042f01 240 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
241 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 242
243 Int_t nLo = fTPCParam->GetNInnerSector()/2;
244 Int_t nHi = fTPCParam->GetNOuterSector()/2;
245
73042f01 246 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
247 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
248 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
249 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 250
251
73042f01 252 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
253 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 254
255 Double_t rl,ru;
256
257
fe4da5cc 258 //
259 // Get ALICE top node
fe4da5cc 260 //
1283eee5 261
73042f01 262 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 263
264 // inner sectors
265
cc80f89e 266 rl = fTPCParam->GetInnerRadiusLow();
267 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 268
269
fe4da5cc 270 for(i=0;i<nLo;i++) {
271 sprintf(name,"LS%2.2d",i);
1283eee5 272 name[4]='\0';
273 sprintf(title,"TPC low sector %3d",i);
274 title[24]='\0';
275
73042f01 276 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
277 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 278 tubs->SetNumberOfDivisions(1);
73042f01 279 nTop->cd();
280 nNode = new TNode(name,title,name,0,0,0,"");
281 nNode->SetLineColor(kColorTPC);
282 fNodes->Add(nNode);
fe4da5cc 283 }
1283eee5 284
fe4da5cc 285 // Outer sectors
1283eee5 286
cc80f89e 287 rl = fTPCParam->GetOuterRadiusLow();
288 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 289
fe4da5cc 290 for(i=0;i<nHi;i++) {
291 sprintf(name,"US%2.2d",i);
1283eee5 292 name[4]='\0';
fe4da5cc 293 sprintf(title,"TPC upper sector %d",i);
1283eee5 294 title[24]='\0';
73042f01 295 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
296 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 297 tubs->SetNumberOfDivisions(1);
73042f01 298 nTop->cd();
299 nNode = new TNode(name,title,name,0,0,0,"");
300 nNode->SetLineColor(kColorTPC);
301 fNodes->Add(nNode);
fe4da5cc 302 }
cc80f89e 303
73042f01 304}
1283eee5 305
fe4da5cc 306//_____________________________________________________________________________
307Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t )
308{
309 //
310 // Calculate distance from TPC to mouse on the display
311 // Dummy procedure
312 //
313 return 9999;
314}
315
88cb7938 316void AliTPC::Clusters2Tracks()
317 {
3c0f9266 318 //-----------------------------------------------------------------
319 // This is a track finder.
3c0f9266 320 //-----------------------------------------------------------------
c630aafd 321 Error("Clusters2Tracks",
322 "Dummy function ! Call AliTPCtracker::Clusters2Tracks(...) instead !");
88cb7938 323 }
fe4da5cc 324
325//_____________________________________________________________________________
326void AliTPC::CreateMaterials()
327{
8c555625 328 //-----------------------------------------------
37831078 329 // Create Materials for for TPC simulations
8c555625 330 //-----------------------------------------------
331
332 //-----------------------------------------------------------------
333 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
334 //-----------------------------------------------------------------
1283eee5 335
73042f01 336 Int_t iSXFLD=gAlice->Field()->Integ();
337 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 338
339 Float_t amat[5]; // atomic numbers
340 Float_t zmat[5]; // z
341 Float_t wmat[5]; // proportions
342
343 Float_t density;
37831078 344 Float_t apure[2];
1283eee5 345
1283eee5 346
37831078 347 //***************** Gases *************************
348
349 //-------------------------------------------------
1283eee5 350 // pure gases
37831078 351 //-------------------------------------------------
1283eee5 352
37831078 353 // Neon
1283eee5 354
355
37831078 356 amat[0]= 20.18;
357 zmat[0]= 10.;
1283eee5 358 density = 0.0009;
37831078 359
360 apure[0]=amat[0];
1283eee5 361
37831078 362 AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
1283eee5 363
37831078 364 // Argon
1283eee5 365
37831078 366 amat[0]= 39.948;
367 zmat[0]= 18.;
368 density = 0.001782;
1283eee5 369
37831078 370 apure[1]=amat[0];
1283eee5 371
37831078 372 AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
373
1283eee5 374
375 //--------------------------------------------------------------
376 // gases - compounds
377 //--------------------------------------------------------------
378
379 Float_t amol[3];
380
37831078 381 // CO2
1283eee5 382
383 amat[0]=12.011;
384 amat[1]=15.9994;
385
386 zmat[0]=6.;
387 zmat[1]=8.;
388
389 wmat[0]=1.;
390 wmat[1]=2.;
391
392 density=0.001977;
393
394 amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
395
396 AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
37831078 397
1283eee5 398 // CF4
399
400 amat[0]=12.011;
401 amat[1]=18.998;
402
403 zmat[0]=6.;
404 zmat[1]=9.;
405
406 wmat[0]=1.;
407 wmat[1]=4.;
408
409 density=0.003034;
410
411 amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
412
413 AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
414
37831078 415
1283eee5 416 // CH4
417
418 amat[0]=12.011;
419 amat[1]=1.;
420
421 zmat[0]=6.;
422 zmat[1]=1.;
423
424 wmat[0]=1.;
425 wmat[1]=4.;
426
427 density=0.000717;
428
429 amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
430
431 AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
432
433 //----------------------------------------------------------------
434 // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
435 //----------------------------------------------------------------
37831078 436
00d6d986 437 char namate[21]="";
1283eee5 438 density = 0.;
439 Float_t am=0;
440 Int_t nc;
37831078 441 Float_t rho,absl,X0,buf[1];
1283eee5 442 Int_t nbuf;
37831078 443 Float_t a,z;
1283eee5 444
445 for(nc = 0;nc<fNoComp;nc++)
446 {
447
448 // retrive material constants
449
37831078 450 gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf);
1283eee5 451
452 amat[nc] = a;
453 zmat[nc] = z;
454
455 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
456
37831078 457 am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
1283eee5 458 density += fMixtProp[nc]*rho; // density of the mixture
459
460 }
461
462 // mixture proportions by weight!
463
464 for(nc = 0;nc<fNoComp;nc++)
465 {
466
467 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
468
37831078 469 wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
470 apure[nnc] : amol[nnc])/am;
471
472 }
473
474 // Drift gases 1 - nonsensitive, 2 - sensitive
1283eee5 475
1283eee5 476 AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
477 AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
1283eee5 478
1283eee5 479
37831078 480 // Air
481
482 amat[0] = 14.61;
483 zmat[0] = 7.3;
484 density = 0.001205;
1283eee5 485
37831078 486 AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
1283eee5 487
1283eee5 488
489 //----------------------------------------------------------------------
490 // solid materials
491 //----------------------------------------------------------------------
492
1283eee5 493
37831078 494 // Kevlar C14H22O2N2
1283eee5 495
37831078 496 amat[0] = 12.011;
497 amat[1] = 1.;
498 amat[2] = 15.999;
499 amat[3] = 14.006;
1283eee5 500
37831078 501 zmat[0] = 6.;
502 zmat[1] = 1.;
503 zmat[2] = 8.;
504 zmat[3] = 7.;
505
506 wmat[0] = 14.;
507 wmat[1] = 22.;
508 wmat[2] = 2.;
509 wmat[3] = 2.;
510
511 density = 1.45;
512
513 AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
514
515 // NOMEX
1283eee5 516
37831078 517 amat[0] = 12.011;
518 amat[1] = 1.;
519 amat[2] = 15.999;
520 amat[3] = 14.006;
521
522 zmat[0] = 6.;
523 zmat[1] = 1.;
524 zmat[2] = 8.;
525 zmat[3] = 7.;
526
527 wmat[0] = 14.;
528 wmat[1] = 22.;
529 wmat[2] = 2.;
530 wmat[3] = 2.;
531
532 density = 0.03;
1283eee5 533
fe4da5cc 534
37831078 535 AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
536
537 // Makrolon C16H18O3
538
539 amat[0] = 12.011;
540 amat[1] = 1.;
541 amat[2] = 15.999;
1283eee5 542
37831078 543 zmat[0] = 6.;
544 zmat[1] = 1.;
545 zmat[2] = 8.;
546
547 wmat[0] = 16.;
548 wmat[1] = 18.;
549 wmat[2] = 3.;
550
551 density = 1.2;
552
553 AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
554
1283eee5 555 // Mylar C5H4O2
556
557 amat[0]=12.011;
558 amat[1]=1.;
559 amat[2]=15.9994;
560
561 zmat[0]=6.;
562 zmat[1]=1.;
563 zmat[2]=8.;
564
565 wmat[0]=5.;
566 wmat[1]=4.;
567 wmat[2]=2.;
568
569 density = 1.39;
fe4da5cc 570
37831078 571 AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
1283eee5 572
ba1d05f9 573 // SiO2 - used later for the glass fiber
1283eee5 574
37831078 575 amat[0]=28.086;
576 amat[1]=15.9994;
1283eee5 577
37831078 578 zmat[0]=14.;
579 zmat[1]=8.;
1283eee5 580
37831078 581 wmat[0]=1.;
582 wmat[1]=2.;
1283eee5 583
1283eee5 584
ba1d05f9 585 AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
1283eee5 586
37831078 587 // Al
1283eee5 588
37831078 589 amat[0] = 26.98;
590 zmat[0] = 13.;
1283eee5 591
37831078 592 density = 2.7;
1283eee5 593
37831078 594 AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 595
37831078 596 // Si
1283eee5 597
37831078 598 amat[0] = 28.086;
9a3667bd 599 zmat[0] = 14.;
1283eee5 600
37831078 601 density = 2.33;
1283eee5 602
37831078 603 AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 604
37831078 605 // Cu
1283eee5 606
37831078 607 amat[0] = 63.546;
608 zmat[0] = 29.;
1283eee5 609
37831078 610 density = 8.96;
1283eee5 611
37831078 612 AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 613
37831078 614 // Tedlar C2H3F
1283eee5 615
37831078 616 amat[0] = 12.011;
617 amat[1] = 1.;
618 amat[2] = 18.998;
1283eee5 619
37831078 620 zmat[0] = 6.;
621 zmat[1] = 1.;
622 zmat[2] = 9.;
1283eee5 623
37831078 624 wmat[0] = 2.;
625 wmat[1] = 3.;
626 wmat[2] = 1.;
1283eee5 627
37831078 628 density = 1.71;
1283eee5 629
37831078 630 AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
1283eee5 631
1283eee5 632
37831078 633 // Plexiglas C5H8O2
1283eee5 634
37831078 635 amat[0]=12.011;
636 amat[1]=1.;
637 amat[2]=15.9994;
1283eee5 638
37831078 639 zmat[0]=6.;
640 zmat[1]=1.;
641 zmat[2]=8.;
1283eee5 642
37831078 643 wmat[0]=5.;
644 wmat[1]=8.;
645 wmat[2]=2.;
1283eee5 646
37831078 647 density=1.18;
1283eee5 648
37831078 649 AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
1283eee5 650
ba1d05f9 651 // Epoxy - C14 H20 O3
1283eee5 652
5a28a08f 653
654 amat[0]=12.011;
655 amat[1]=1.;
656 amat[2]=15.9994;
657
658 zmat[0]=6.;
659 zmat[1]=1.;
660 zmat[2]=8.;
661
ba1d05f9 662 wmat[0]=14.;
663 wmat[1]=20.;
5a28a08f 664 wmat[2]=3.;
665
ba1d05f9 666 density=1.25;
5a28a08f 667
668 AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
37831078 669
ba1d05f9 670 // Carbon
671
672 amat[0]=12.011;
673 zmat[0]=6.;
674 density= 2.265;
675
676 AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
677
678 // get epoxy
679
680 gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,X0,absl,buf,nbuf);
681
682 // Carbon fiber
683
684 wmat[0]=0.644; // by weight!
685 wmat[1]=0.356;
686
687 density=0.5*(1.25+2.265);
688
689 AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
690
691 // get SiO2
692
693 gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
694
695 wmat[0]=0.725; // by weight!
696 wmat[1]=0.275;
697
698 density=1.7;
699
700 AliMixture(39,"G10",amat,zmat,density,2,wmat);
701
702
703
704
37831078 705 //----------------------------------------------------------
706 // tracking media for gases
707 //----------------------------------------------------------
708
709 AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
710 AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
711 AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
712 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
713
714 //-----------------------------------------------------------
715 // tracking media for solids
716 //-----------------------------------------------------------
717
718 AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
719 AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
720 AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
721 AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
722 AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
723 AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
724 AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
725 AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
726 AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
727 AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
5a28a08f 728 AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
ba1d05f9 729 AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 730
fe4da5cc 731}
732
407ff276 733void AliTPC::GenerNoise(Int_t tablesize)
734{
735 //
736 //Generate table with noise
737 //
738 if (fTPCParam==0) {
739 // error message
740 fNoiseDepth=0;
741 return;
742 }
743 if (fNoiseTable) delete[] fNoiseTable;
744 fNoiseTable = new Float_t[tablesize];
745 fNoiseDepth = tablesize;
746 fCurrentNoise =0; //!index of the noise in the noise table
747
748 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
749 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
750}
751
752Float_t AliTPC::GetNoise()
753{
754 // get noise from table
755 // if ((fCurrentNoise%10)==0)
756 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
757 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
758 return fNoiseTable[fCurrentNoise++];
759 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
760}
761
762
792bb11c 763Bool_t AliTPC::IsSectorActive(Int_t sec)
764{
765 //
766 // check if the sector is active
767 if (!fActiveSectors) return kTRUE;
768 else return fActiveSectors[sec];
769}
770
771void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
772{
773 // activate interesting sectors
88cb7938 774 SetTreeAddress();//just for security
792bb11c 775 if (fActiveSectors) delete [] fActiveSectors;
776 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
777 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
778 for (Int_t i=0;i<n;i++)
779 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
780
781}
782
12d8d654 783void AliTPC::SetActiveSectors(Int_t flag)
792bb11c 784{
785 //
786 // activate sectors which were hitted by tracks
787 //loop over tracks
88cb7938 788 SetTreeAddress();//just for security
792bb11c 789 if (fHitType==0) return; // if Clones hit - not short volume ID information
790 if (fActiveSectors) delete [] fActiveSectors;
791 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
12d8d654 792 if (flag) {
793 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
794 return;
795 }
792bb11c 796 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
797 TBranch * branch=0;
88cb7938 798 if (TreeH() == 0x0)
799 {
800 Fatal("SetActiveSectors","Can not find TreeH in folder");
801 return;
802 }
803 if (fHitType>1) branch = TreeH()->GetBranch("TPC2");
804 else branch = TreeH()->GetBranch("TPC");
805 Stat_t ntracks = TreeH()->GetEntries();
792bb11c 806 // loop over all hits
88cb7938 807 cout<<"\nAliTPC::SetActiveSectors(): Got "<<ntracks<<" tracks\n";
808
809 for(Int_t track=0;track<ntracks;track++)
810 {
792bb11c 811 ResetHits();
812 //
813 if (fTrackHits && fHitType&4) {
88cb7938 814 TBranch * br1 = TreeH()->GetBranch("fVolumes");
815 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 816 br1->GetEvent(track);
817 br2->GetEvent(track);
818 Int_t *volumes = fTrackHits->GetVolumes();
819 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
820 fActiveSectors[volumes[j]]=kTRUE;
821 }
822
823 //
824 if (fTrackHitsOld && fHitType&2) {
88cb7938 825 TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
792bb11c 826 br->GetEvent(track);
827 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
828 for (UInt_t j=0;j<ar->GetSize();j++){
829 fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
830 }
831 }
832 }
833
834}
835
836
837
fe4da5cc 838
176aff27 839void AliTPC::Digits2Clusters(Int_t /*eventnumber*/)
fe4da5cc 840{
3c0f9266 841 //-----------------------------------------------------------------
842 // This is a simple cluster finder.
3c0f9266 843 //-----------------------------------------------------------------
c630aafd 844 Error("Digits2Clusters",
845 "Dummy function ! Call AliTPCclusterer::Digits2Clusters(...) instead !");
fe4da5cc 846}
847
73042f01 848extern Double_t SigmaY2(Double_t, Double_t, Double_t);
849extern Double_t SigmaZ2(Double_t, Double_t);
fe4da5cc 850//_____________________________________________________________________________
176aff27 851void AliTPC::Hits2Clusters(Int_t /*eventn*/)
fe4da5cc 852{
8c555625 853 //--------------------------------------------------------
fe4da5cc 854 // TPC simple cluster generator from hits
855 // obtained from the TPC Fast Simulator
8c555625 856 // The point errors are taken from the parametrization
857 //--------------------------------------------------------
858
859 //-----------------------------------------------------------------
860 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
861 //-----------------------------------------------------------------
73042f01 862 // Adopted to Marian's cluster data structure by I.Belikov, CERN,
863 // Jouri.Belikov@cern.ch
864 //----------------------------------------------------------------
865
866 /////////////////////////////////////////////////////////////////////////////
867 //
868 //---------------------------------------------------------------------
869 // ALICE TPC Cluster Parameters
870 //--------------------------------------------------------------------
871
872
873
874 // Cluster width in rphi
875 const Float_t kACrphi=0.18322;
876 const Float_t kBCrphi=0.59551e-3;
877 const Float_t kCCrphi=0.60952e-1;
878 // Cluster width in z
879 const Float_t kACz=0.19081;
880 const Float_t kBCz=0.55938e-3;
881 const Float_t kCCz=0.30428;
882
73042f01 883
88cb7938 884 if (!fLoader) {
73042f01 885 cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
886 return;
887 }
3c0f9266 888
afc42102 889 //if(fDefaults == 0) SetDefaults();
cc80f89e 890
73042f01 891 Float_t sigmaRphi,sigmaZ,clRphi,clZ;
fe4da5cc 892 //
1578254f 893 TParticle *particle; // pointer to a given particle
fe4da5cc 894 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 895 Int_t sector;
fe4da5cc 896 Int_t ipart;
897 Float_t xyz[5];
898 Float_t pl,pt,tanth,rpad,ratio;
fe4da5cc 899 Float_t cph,sph;
900
901 //---------------------------------------------------------------
902 // Get the access to the tracks
903 //---------------------------------------------------------------
904
88cb7938 905 TTree *tH = TreeH();
906 if (tH == 0x0)
907 {
908 Fatal("Hits2Clusters","Can not find TreeH in folder");
909 return;
910 }
911 SetTreeAddress();
912
73042f01 913 Stat_t ntracks = tH->GetEntries();
73042f01 914
915 //Switch to the output file
88cb7938 916
917 if (fLoader->TreeR() == 0x0) fLoader->MakeTree("R");
918
919 cout<<"fTPCParam->GetTitle() = "<<fTPCParam->GetTitle()<<endl;
920
921 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
922 rl->CdGAFile();
c630aafd 923 //fTPCParam->Write(fTPCParam->GetTitle());
88cb7938 924
73042f01 925 AliTPCClustersArray carray;
926 carray.Setup(fTPCParam);
927 carray.SetClusterType("AliTPCcluster");
88cb7938 928 carray.MakeTree(fLoader->TreeR());
73042f01 929
930 Int_t nclusters=0; //cluster counter
fe4da5cc 931
932 //------------------------------------------------------------
cc80f89e 933 // Loop over all sectors (72 sectors for 20 deg
934 // segmentation for both lower and upper sectors)
935 // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
3c0f9266 936 // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
fe4da5cc 937 //
3c0f9266 938 // First cluster for sector 0 starts at "0"
fe4da5cc 939 //------------------------------------------------------------
cc80f89e 940
941 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){
8c555625 942 //MI change
cc80f89e 943 fTPCParam->AdjustCosSin(isec,cph,sph);
fe4da5cc 944
945 //------------------------------------------------------------
946 // Loop over tracks
947 //------------------------------------------------------------
948
949 for(Int_t track=0;track<ntracks;track++){
950 ResetHits();
73042f01 951 tH->GetEvent(track);
fe4da5cc 952 //
73042f01 953 // Get number of the TPC hits
792bb11c 954 //
39c8eb58 955 tpcHit = (AliTPChit*)FirstHit(-1);
956
fe4da5cc 957 // Loop over hits
958 //
39c8eb58 959 while(tpcHit){
960
961 if (tpcHit->fQ == 0.) {
962 tpcHit = (AliTPChit*) NextHit();
963 continue; //information about track (I.Belikov)
964 }
fe4da5cc 965 sector=tpcHit->fSector; // sector number
39c8eb58 966
39c8eb58 967 if(sector != isec){
968 tpcHit = (AliTPChit*) NextHit();
969 continue;
970 }
94de3818 971 ipart=tpcHit->Track();
5d12ce38 972 particle=gAlice->GetMCApp()->Particle(ipart);
1578254f 973 pl=particle->Pz();
974 pt=particle->Pt();
fe4da5cc 975 if(pt < 1.e-9) pt=1.e-9;
976 tanth=pl/pt;
977 tanth = TMath::Abs(tanth);
94de3818 978 rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
fe4da5cc 979 ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
73042f01 980
fe4da5cc 981 // space-point resolutions
982
73042f01 983 sigmaRphi=SigmaY2(rpad,tanth,pt);
984 sigmaZ =SigmaZ2(rpad,tanth );
fe4da5cc 985
986 // cluster widths
987
73042f01 988 clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
989 clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
fe4da5cc 990
991 // temporary protection
992
73042f01 993 if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
994 if(sigmaZ < 0.) sigmaZ=0.4e-3;
995 if(clRphi < 0.) clRphi=2.5e-3;
996 if(clZ < 0.) clZ=2.5e-5;
fe4da5cc 997
998 //
cc80f89e 999
1000 //
1001 // smearing --> rotate to the 1 (13) or to the 25 (49) sector,
fe4da5cc 1002 // then the inaccuracy in a X-Y plane is only along Y (pad row)!
1003 //
94de3818 1004 Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
1005 Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
73042f01 1006 xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
1007 Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
1008 fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
1009 Float_t ymax=xprim*TMath::Tan(0.5*alpha);
1010 if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
94de3818 1011 xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
1012 if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
39c8eb58 1013 xyz[2]=sigmaRphi; // fSigmaY2
1014 xyz[3]=sigmaZ; // fSigmaZ2
1015 xyz[4]=tpcHit->fQ; // q
73042f01 1016
1017 AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
1018 if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
1019
94de3818 1020 Int_t tracks[3]={tpcHit->Track(), -1, -1};
39c8eb58 1021 AliTPCcluster cluster(tracks,xyz);
73042f01 1022
1023 clrow->InsertCluster(&cluster); nclusters++;
1024
39c8eb58 1025 tpcHit = (AliTPChit*)NextHit();
1026
1027
fe4da5cc 1028 } // end of loop over hits
73042f01 1029
1030 } // end of loop over tracks
1031
1032 Int_t nrows=fTPCParam->GetNRow(isec);
1033 for (Int_t irow=0; irow<nrows; irow++) {
1034 AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
1035 if (!clrow) continue;
1036 carray.StoreRow(isec,irow);
1037 carray.ClearRow(isec,irow);
1038 }
1039
cc80f89e 1040 } // end of loop over sectors
73042f01 1041
1042 cerr<<"Number of made clusters : "<<nclusters<<" \n";
88cb7938 1043 fLoader->WriteRecPoints("OVERWRITE");
1044
cc80f89e 1045
1046} // end of function
1047
1048//_________________________________________________________________
1049void AliTPC::Hits2ExactClustersSector(Int_t isec)
1050{
1051 //--------------------------------------------------------
1052 //calculate exact cross point of track and given pad row
1053 //resulting values are expressed in "digit" coordinata
1054 //--------------------------------------------------------
1055
1056 //-----------------------------------------------------------------
1057 // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
1058 //-----------------------------------------------------------------
1059 //
1060 if (fClustersArray==0){
1061 return;
1062 }
1063 //
1064 TParticle *particle; // pointer to a given particle
1065 AliTPChit *tpcHit; // pointer to a sigle TPC hit
5f16d237 1066 // Int_t sector,nhits;
cc80f89e 1067 Int_t ipart;
73042f01 1068 const Int_t kcmaxhits=30000;
de61d5d5 1069 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
1070 AliTPCFastVector & xxx = *xxxx;
73042f01 1071 Int_t maxhits = kcmaxhits;
cc80f89e 1072 //construct array for each padrow
1073 for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++)
1074 fClustersArray->CreateRow(isec,i);
fe4da5cc 1075
cc80f89e 1076 //---------------------------------------------------------------
1077 // Get the access to the tracks
1078 //---------------------------------------------------------------
1079
88cb7938 1080 TTree *tH = TreeH();
1081 if (tH == 0x0)
1082 {
1083 Fatal("Hits2Clusters","Can not find TreeH in folder");
1084 return;
1085 }
1086 SetTreeAddress();
1087
73042f01 1088 Stat_t ntracks = tH->GetEntries();
5d12ce38 1089 Int_t npart = gAlice->GetMCApp()->GetNtrack();
5f16d237 1090 //MI change
1091 TBranch * branch=0;
792bb11c 1092 if (fHitType>1) branch = tH->GetBranch("TPC2");
5f16d237 1093 else branch = tH->GetBranch("TPC");
1094
cc80f89e 1095 //------------------------------------------------------------
1096 // Loop over tracks
1097 //------------------------------------------------------------
792bb11c 1098
5f16d237 1099 for(Int_t track=0;track<ntracks;track++){
1100 Bool_t isInSector=kTRUE;
cc80f89e 1101 ResetHits();
792bb11c 1102 isInSector = TrackInVolume(isec,track);
5f16d237 1103 if (!isInSector) continue;
1104 //MI change
1105 branch->GetEntry(track); // get next track
cc80f89e 1106 //
1107 // Get number of the TPC hits and a pointer
1108 // to the particles
cc80f89e 1109 // Loop over hits
1110 //
1111 Int_t currentIndex=0;
1112 Int_t lastrow=-1; //last writen row
5f16d237 1113
1114 //M.I. changes
1115
1116 tpcHit = (AliTPChit*)FirstHit(-1);
1117 while(tpcHit){
1118
1119 Int_t sector=tpcHit->fSector; // sector number
1120 if(sector != isec){
1121 tpcHit = (AliTPChit*) NextHit();
1122 continue;
1123 }
1124
94de3818 1125 ipart=tpcHit->Track();
5d12ce38 1126 if (ipart<npart) particle=gAlice->GetMCApp()->Particle(ipart);
cc80f89e 1127
1128 //find row number
1129
94de3818 1130 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
cc80f89e 1131 Int_t index[3]={1,isec,0};
1132 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
5f16d237 1133 if (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
cc80f89e 1134 if (lastrow<0) lastrow=currentrow;
1135 if (currentrow==lastrow){
1136 if ( currentIndex>=maxhits){
73042f01 1137 maxhits+=kcmaxhits;
cc80f89e 1138 xxx.ResizeTo(4*maxhits);
1139 }
1140 xxx(currentIndex*4)=x[0];
1141 xxx(currentIndex*4+1)=x[1];
1142 xxx(currentIndex*4+2)=x[2];
1143 xxx(currentIndex*4+3)=tpcHit->fQ;
1144 currentIndex++;
1145 }
1146 else
1147 if (currentIndex>2){
1148 Float_t sumx=0;
1149 Float_t sumx2=0;
1150 Float_t sumx3=0;
1151 Float_t sumx4=0;
1152 Float_t sumy=0;
1153 Float_t sumxy=0;
1154 Float_t sumx2y=0;
1155 Float_t sumz=0;
1156 Float_t sumxz=0;
1157 Float_t sumx2z=0;
1158 Float_t sumq=0;
1159 for (Int_t index=0;index<currentIndex;index++){
1160 Float_t x,x2,x3,x4;
1161 x=x2=x3=x4=xxx(index*4);
1162 x2*=x;
1163 x3*=x2;
1164 x4*=x3;
1165 sumx+=x;
1166 sumx2+=x2;
1167 sumx3+=x3;
1168 sumx4+=x4;
1169 sumy+=xxx(index*4+1);
1170 sumxy+=xxx(index*4+1)*x;
1171 sumx2y+=xxx(index*4+1)*x2;
1172 sumz+=xxx(index*4+2);
1173 sumxz+=xxx(index*4+2)*x;
1174 sumx2z+=xxx(index*4+2)*x2;
1175 sumq+=xxx(index*4+3);
1176 }
73042f01 1177 Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
cc80f89e 1178 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
1179 sumx2*(sumx*sumx3-sumx2*sumx2);
1180
1181 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
1182 sumx2*(sumxy*sumx3-sumx2y*sumx2);
1183 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
1184 sumx2*(sumxz*sumx3-sumx2z*sumx2);
1185
1186 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
1187 sumx2*(sumx*sumx2y-sumx2*sumxy);
1188 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
1189 sumx2*(sumx*sumx2z-sumx2*sumxz);
1190
da33556f 1191 if (TMath::Abs(det)<0.00001){
1192 tpcHit = (AliTPChit*)NextHit();
1193 continue;
1194 }
1195
73042f01 1196 Float_t y=detay/det+centralPad;
cc80f89e 1197 Float_t z=detaz/det;
1198 Float_t by=detby/det; //y angle
1199 Float_t bz=detbz/det; //z angle
1200 sumy/=Float_t(currentIndex);
1201 sumz/=Float_t(currentIndex);
5f16d237 1202
cc80f89e 1203 AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
5f16d237 1204 if (row!=0) {
1205 AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
1206 // AliComplexCluster cl;
1207 cl->fX=z;
1208 cl->fY=y;
1209 cl->fQ=sumq;
1210 cl->fSigmaX2=bz;
1211 cl->fSigmaY2=by;
1212 cl->fTracks[0]=ipart;
1213 }
cc80f89e 1214 currentIndex=0;
1215 lastrow=currentrow;
1216 } //end of calculating cluster for given row
1217
1218
5f16d237 1219 tpcHit = (AliTPChit*)NextHit();
cc80f89e 1220 } // end of loop over hits
1221 } // end of loop over tracks
1222 //write padrows to tree
1223 for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) {
1224 fClustersArray->StoreRow(isec,ii);
1225 fClustersArray->ClearRow(isec,ii);
1226 }
1227 xxxx->Delete();
1228
fe4da5cc 1229}
0a61bf9d 1230
1231
1232
85a5290f 1233//______________________________________________________________________
1234AliDigitizer* AliTPC::CreateDigitizer(AliRunDigitizer* manager)
1235{
1236 return new AliTPCDigitizer(manager);
1237}
0a61bf9d 1238//__
176aff27 1239void AliTPC::SDigits2Digits2(Int_t /*eventnumber*/)
0a61bf9d 1240{
1241 //create digits from summable digits
407ff276 1242 GenerNoise(500000); //create teble with noise
0a61bf9d 1243
1244 //conect tree with sSDigits
88cb7938 1245 TTree *t = fLoader->TreeS();
1246
1247 if (t == 0x0)
1248 {
1249 fLoader->LoadSDigits("READ");
1250 t = fLoader->TreeS();
1251 if (t == 0x0)
1252 {
1253 Error("SDigits2Digits2","Can not get input TreeS");
1254 return;
1255 }
1256 }
1257
1258 if (fLoader->TreeD() == 0x0) fLoader->MakeTree("D");
1259
0a61bf9d 1260 AliSimDigits digarr, *dummy=&digarr;
88cb7938 1261 TBranch* sdb = t->GetBranch("Segment");
1262 if (sdb == 0x0)
1263 {
1264 Error("SDigits2Digits2","Can not find branch with segments in TreeS.");
1265 return;
1266 }
1267
1268 sdb->SetAddress(&dummy);
1269
0a61bf9d 1270 Stat_t nentries = t->GetEntries();
1271
5f16d237 1272 // set zero suppression
1273
1274 fTPCParam->SetZeroSup(2);
1275
1276 // get zero suppression
1277
1278 Int_t zerosup = fTPCParam->GetZeroSup();
1279
1280 //make tree with digits
1281
0a61bf9d 1282 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1283 arr->SetClass("AliSimDigits");
1284 arr->Setup(fTPCParam);
88cb7938 1285 arr->MakeTree(fLoader->TreeD());
0a61bf9d 1286
88cb7938 1287 AliTPCParam * par = fTPCParam;
5f16d237 1288
0a61bf9d 1289 //Loop over segments of the TPC
5f16d237 1290
0a61bf9d 1291 for (Int_t n=0; n<nentries; n++) {
1292 t->GetEvent(n);
1293 Int_t sec, row;
1294 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
1295 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
1296 continue;
1297 }
88cb7938 1298 if (!IsSectorActive(sec))
1299 {
1300// cout<<n<<" NOT Active \n";
1301 continue;
1302 }
1303 else
1304 {
1305// cout<<n<<" Active \n";
1306 }
0a61bf9d 1307 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1308 Int_t nrows = digrow->GetNRows();
1309 Int_t ncols = digrow->GetNCols();
1310
1311 digrow->ExpandBuffer();
1312 digarr.ExpandBuffer();
1313 digrow->ExpandTrackBuffer();
1314 digarr.ExpandTrackBuffer();
1315
5f16d237 1316
407ff276 1317 Short_t * pamp0 = digarr.GetDigits();
1318 Int_t * ptracks0 = digarr.GetTracks();
1319 Short_t * pamp1 = digrow->GetDigits();
1320 Int_t * ptracks1 = digrow->GetTracks();
1321 Int_t nelems =nrows*ncols;
1322 Int_t saturation = fTPCParam->GetADCSat();
1323 //use internal structure of the AliDigits - for speed reason
1324 //if you cahnge implementation
1325 //of the Alidigits - it must be rewriten -
1326 for (Int_t i= 0; i<nelems; i++){
1327 // Float_t q = *pamp0;
1328 //q/=16.; //conversion faktor
1329 //Float_t noise= GetNoise();
1330 //q+=noise;
1331 //q= TMath::Nint(q);
1332 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1333 if (q>zerosup){
1334 if (q>saturation) q=saturation;
1335 *pamp1=(Short_t)q;
1336 //if (ptracks0[0]==0)
1337 // ptracks1[0]=1;
1338 //else
1339 ptracks1[0]=ptracks0[0];
1340 ptracks1[nelems]=ptracks0[nelems];
1341 ptracks1[2*nelems]=ptracks0[2*nelems];
1342 }
1343 pamp0++;
1344 pamp1++;
1345 ptracks0++;
1346 ptracks1++;
1347 }
5f16d237 1348
5f16d237 1349 arr->StoreRow(sec,row);
1350 arr->ClearRow(sec,row);
9fe90376 1351 // cerr<<sec<<"\t"<<row<<"\n";
5f16d237 1352 }
0a61bf9d 1353
0a61bf9d 1354
5f16d237 1355 //write results
88cb7938 1356 fLoader->WriteDigits("OVERWRITE");
5f16d237 1357
88cb7938 1358 delete arr;
afc42102 1359}
1360//__________________________________________________________________
1361void AliTPC::SetDefaults(){
1362
1363
1364 cerr<<"Setting default parameters...\n";
1365
1366 // Set response functions
1367
88cb7938 1368 //
1369 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1370 rl->CdGAFile();
2ab0c725 1371 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
7a09f434 1372 if(param){
1373 printf("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...\n");
1374 delete param;
1375 param = new AliTPCParamSR();
1376 }
1377 else {
1378 param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
1379 }
1380 if(!param){
1381 printf("No TPC parameters found\n");
1382 exit(4);
1383 }
1384
1385
2ab0c725 1386 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
f03e3423 1387 AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
1388 AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
2ab0c725 1389 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1390 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1391 rf->SetOffset(3*param->GetZSigma());
1392 rf->Update();
afc42102 1393
1394 TDirectory *savedir=gDirectory;
2ab0c725 1395 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
1396 if (!f->IsOpen()) {
afc42102 1397 cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
2ab0c725 1398 exit(3);
1399 }
2a336e15 1400
1401 TString s;
2ab0c725 1402 prfinner->Read("prf_07504_Gati_056068_d02");
2a336e15 1403 //PH Set different names
1404 s=prfinner->GetGRF()->GetName();
1405 s+="in";
1406 prfinner->GetGRF()->SetName(s.Data());
1407
f03e3423 1408 prfouter1->Read("prf_10006_Gati_047051_d03");
2a336e15 1409 s=prfouter1->GetGRF()->GetName();
1410 s+="out1";
1411 prfouter1->GetGRF()->SetName(s.Data());
1412
f03e3423 1413 prfouter2->Read("prf_15006_Gati_047051_d03");
2a336e15 1414 s=prfouter2->GetGRF()->GetName();
1415 s+="out2";
1416 prfouter2->GetGRF()->SetName(s.Data());
1417
2ab0c725 1418 f->Close();
afc42102 1419 savedir->cd();
1420
2ab0c725 1421 param->SetInnerPRF(prfinner);
f03e3423 1422 param->SetOuter1PRF(prfouter1);
1423 param->SetOuter2PRF(prfouter2);
2ab0c725 1424 param->SetTimeRF(rf);
1425
afc42102 1426 // set fTPCParam
1427
2ab0c725 1428 SetParam(param);
1429
afc42102 1430
1431 fDefaults = 1;
1432
1433}
1434//__________________________________________________________________
85a5290f 1435void AliTPC::Hits2Digits()
1436{
1437 fLoader->LoadHits("read");
1438 fLoader->LoadDigits("recreate");
1439 AliRunLoader* runLoader = fLoader->GetRunLoader();
1440
1441 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1442 runLoader->GetEvent(iEvent);
1443 SetActiveSectors();
1444 Hits2Digits(iEvent);
1445 }
1446
1447 fLoader->UnloadHits();
1448 fLoader->UnloadDigits();
1449}
1450//__________________________________________________________________
afc42102 1451void AliTPC::Hits2Digits(Int_t eventnumber)
1452{
1453 //----------------------------------------------------
1454 // Loop over all sectors for a single event
1455 //----------------------------------------------------
88cb7938 1456 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1457 rl->GetEvent(eventnumber);
1458 if (fLoader->TreeH() == 0x0)
1459 {
1460 if(fLoader->LoadHits())
1461 {
1462 Error("Hits2Digits","Can not load hits.");
1463 }
1464 }
1465 SetTreeAddress();
1466
1467 if (fLoader->TreeD() == 0x0 )
1468 {
1469 fLoader->MakeTree("D");
1470 if (fLoader->TreeD() == 0x0 )
1471 {
1472 Error("Hits2Digits","Can not get TreeD");
1473 return;
1474 }
1475 }
afc42102 1476
1477 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1478 GenerNoise(500000); //create teble with noise
2ab0c725 1479
1480 //setup TPCDigitsArray
afc42102 1481
1482 if(GetDigitsArray()) delete GetDigitsArray();
1483
2ab0c725 1484 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1485 arr->SetClass("AliSimDigits");
afc42102 1486 arr->Setup(fTPCParam);
88cb7938 1487
1488 arr->MakeTree(fLoader->TreeD());
2ab0c725 1489 SetDigitsArray(arr);
1490
afc42102 1491 fDigitsSwitch=0; // standard digits
2ab0c725 1492
0a9b058d 1493 cerr<<"Digitizing TPC -- normal digits...\n";
fe4da5cc 1494
88cb7938 1495 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1496 if (IsSectorActive(isec))
1497 {
f2a509af 1498 if (fDebug) Info("Hits2Digits","Sector %d is active.",isec);
88cb7938 1499 Hits2DigitsSector(isec);
1500 }
1501 else
1502 {
f2a509af 1503 if (fDebug) Info("Hits2Digits","Sector %d is NOT active.",isec);
88cb7938 1504 }
cc80f89e 1505
88cb7938 1506 fLoader->WriteDigits("OVERWRITE");
f2a509af 1507
1508//this line prevents the crash in the similar one
1509//on the beginning of this method
1510//destructor attempts to reset the tree, which is deleted by the loader
1511//need to be redesign
1512 if(GetDigitsArray()) delete GetDigitsArray();
1513 SetDigitsArray(0x0);
1514
8c555625 1515}
1516
f8cf550c 1517//__________________________________________________________________
0a61bf9d 1518void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1519{
1520
1521 //-----------------------------------------------------------
1522 // summable digits - 16 bit "ADC", no noise, no saturation
1523 //-----------------------------------------------------------
1524
1525 //----------------------------------------------------
afc42102 1526 // Loop over all sectors for a single event
f8cf550c 1527 //----------------------------------------------------
88cb7938 1528// AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::fgkRunLoaderName);
1529
1530 AliRunLoader* rl = fLoader->GetRunLoader();
1531
1532 rl->GetEvent(eventnumber);
1533 if (fLoader->TreeH() == 0x0)
1534 {
1535 if(fLoader->LoadHits())
1536 {
1537 Error("Hits2Digits","Can not load hits.");
1538 return;
1539 }
1540 }
1541 SetTreeAddress();
f8cf550c 1542
afc42102 1543
88cb7938 1544 if (fLoader->TreeS() == 0x0 )
1545 {
1546 fLoader->MakeTree("S");
1547 }
1548
afc42102 1549 if(fDefaults == 0) SetDefaults();
88cb7938 1550
407ff276 1551 GenerNoise(500000); //create table with noise
afc42102 1552 //setup TPCDigitsArray
1553
1554 if(GetDigitsArray()) delete GetDigitsArray();
1555
88cb7938 1556
afc42102 1557 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1558 arr->SetClass("AliSimDigits");
1559 arr->Setup(fTPCParam);
88cb7938 1560 arr->MakeTree(fLoader->TreeS());
1561
afc42102 1562 SetDigitsArray(arr);
1563
0a9b058d 1564 cerr<<"Digitizing TPC -- summable digits...\n";
afc42102 1565
1566 fDigitsSwitch=1; // summable digits
5f16d237 1567
1568 // set zero suppression to "0"
1569
1570 fTPCParam->SetZeroSup(0);
f8cf550c 1571
88cb7938 1572 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1573 if (IsSectorActive(isec))
1574 {
1575// cout<<"Sector "<<isec<<" is active\n";
1576 Hits2DigitsSector(isec);
1577 }
1578
1579 fLoader->WriteSDigits("OVERWRITE");
1580
1581//this line prevents the crash in the similar one
1582//on the beginning of this method
1583//destructor attempts to reset the tree, which is deleted by the loader
1584//need to be redesign
1585 if(GetDigitsArray()) delete GetDigitsArray();
1586 SetDigitsArray(0x0);
f8cf550c 1587}
0a61bf9d 1588//__________________________________________________________________
88cb7938 1589
0a61bf9d 1590void AliTPC::Hits2SDigits()
1591{
1592
1593 //-----------------------------------------------------------
1594 // summable digits - 16 bit "ADC", no noise, no saturation
1595 //-----------------------------------------------------------
1596
85a5290f 1597 fLoader->LoadHits("read");
1598 fLoader->LoadSDigits("recreate");
1599 AliRunLoader* runLoader = fLoader->GetRunLoader();
0a61bf9d 1600
85a5290f 1601 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1602 runLoader->GetEvent(iEvent);
1603 SetTreeAddress();
1604 SetActiveSectors();
1605 Hits2SDigits2(iEvent);
1606 }
0a61bf9d 1607
85a5290f 1608 fLoader->UnloadHits();
1609 fLoader->UnloadSDigits();
0a61bf9d 1610}
fe4da5cc 1611//_____________________________________________________________________________
88cb7938 1612
8c555625 1613void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1614{
8c555625 1615 //-------------------------------------------------------------------
fe4da5cc 1616 // TPC conversion from hits to digits.
8c555625 1617 //-------------------------------------------------------------------
1618
1619 //-----------------------------------------------------------------
1620 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1621 //-----------------------------------------------------------------
1622
fe4da5cc 1623 //-------------------------------------------------------
8c555625 1624 // Get the access to the track hits
fe4da5cc 1625 //-------------------------------------------------------
8c555625 1626
afc42102 1627 // check if the parameters are set - important if one calls this method
1628 // directly, not from the Hits2Digits
1629
1630 if(fDefaults == 0) SetDefaults();
cc80f89e 1631
88cb7938 1632 TTree *tH = TreeH(); // pointer to the hits tree
1633 if (tH == 0x0)
1634 {
1635 Fatal("Hits2DigitsSector","Can not find TreeH in folder");
1636 return;
1637 }
1638
73042f01 1639 Stat_t ntracks = tH->GetEntries();
8c555625 1640
1641 if( ntracks > 0){
1642
1643 //-------------------------------------------
1644 // Only if there are any tracks...
1645 //-------------------------------------------
1646
8c555625 1647 TObjArray **row;
fe4da5cc 1648
a62d28a2 1649 //printf("*** Processing sector number %d ***\n",isec);
8c555625 1650
1651 Int_t nrows =fTPCParam->GetNRow(isec);
1652
b584c7dd 1653 row= new TObjArray* [nrows+2]; // 2 extra rows for cross talk
fe4da5cc 1654
73042f01 1655 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1656
1657 //--------------------------------------------------------
1658 // Digitize this sector, row by row
de61d5d5 1659 // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
8c555625 1660 // each one containing electrons accepted on this
1661 // row, assigned into tracks
1662 //--------------------------------------------------------
1663
1664 Int_t i;
1665
88cb7938 1666 if (fDigitsArray->GetTree()==0)
1667 {
1668 Fatal("Hits2DigitsSector","Tree not set in fDigitsArray");
1669 }
8c555625 1670
cc80f89e 1671 for (i=0;i<nrows;i++){
8c555625 1672
afc42102 1673 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1674
cc80f89e 1675 DigitizeRow(i,isec,row);
8c555625 1676
cc80f89e 1677 fDigitsArray->StoreRow(isec,i);
8c555625 1678
792bb11c 1679 Int_t ndig = dig->GetDigitSize();
88cb7938 1680
1681 if (gDebug > 10)
1682 printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
792bb11c 1683
cc80f89e 1684 fDigitsArray->ClearRow(isec,i);
8c555625 1685
cc80f89e 1686
8c555625 1687 } // end of the sector digitization
8c555625 1688
df32adf9 1689 for(i=0;i<nrows+2;i++){
39c8eb58 1690 row[i]->Delete();
1691 delete row[i];
cc80f89e 1692 }
1693
8c555625 1694 delete [] row; // delete the array of pointers to TObjArray-s
1695
1696 } // ntracks >0
8c555625 1697
cc80f89e 1698} // end of Hits2DigitsSector
8c555625 1699
8c555625 1700
8c555625 1701//_____________________________________________________________________________
cc80f89e 1702void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1703{
1704 //-----------------------------------------------------------
1705 // Single row digitization, coupling from the neighbouring
1706 // rows taken into account
1707 //-----------------------------------------------------------
1708
1709 //-----------------------------------------------------------------
1710 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1711 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1712 //-----------------------------------------------------------------
1713
1714
8c555625 1715 Float_t zerosup = fTPCParam->GetZeroSup();
b584c7dd 1716 // Int_t nrows =fTPCParam->GetNRow(isec);
cc80f89e 1717 fCurrentIndex[1]= isec;
8c555625 1718
8c555625 1719
73042f01 1720 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1721 Int_t nofTbins = fTPCParam->GetMaxTBin();
1722 Int_t indexRange[4];
8c555625 1723 //
1724 // Integrated signal for this row
1725 // and a single track signal
cc80f89e 1726 //
de61d5d5 1727
1728 AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
1729 AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
8c555625 1730 //
de61d5d5 1731 AliTPCFastMatrix &total = *m1;
8c555625 1732
1733 // Array of pointers to the label-signal list
1734
73042f01 1735 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1736 Float_t **pList = new Float_t* [nofDigits];
8c555625 1737
1738 Int_t lp;
cc80f89e 1739 Int_t i1;
73042f01 1740 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1741 //
cc80f89e 1742 //calculate signal
1743 //
b584c7dd 1744 //Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
1745 //Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
1746 Int_t row1=irow;
1747 Int_t row2=irow+2;
cc80f89e 1748 for (Int_t row= row1;row<=row2;row++){
1749 Int_t nTracks= rows[row]->GetEntries();
1750 for (i1=0;i1<nTracks;i1++){
1751 fCurrentIndex[2]= row;
b584c7dd 1752 fCurrentIndex[3]=irow+1;
1753 if (row==irow+1){
cc80f89e 1754 m2->Zero(); // clear single track signal matrix
73042f01 1755 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1756 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1757 }
73042f01 1758 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1759 }
8c555625 1760 }
cc80f89e 1761
8c555625 1762 Int_t tracks[3];
8c555625 1763
cc80f89e 1764 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1765 Int_t gi=-1;
1766 Float_t fzerosup = zerosup+0.5;
1767 for(Int_t it=0;it<nofTbins;it++){
1768 Float_t *pq = &(total.UncheckedAt(0,it));
1769 for(Int_t ip=0;ip<nofPads;ip++){
1770 gi++;
1771 Float_t q=*pq;
1772 pq++;
f8cf550c 1773 if(fDigitsSwitch == 0){
407ff276 1774 q+=GetNoise();
de61d5d5 1775 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1776 q = TMath::Nint(q);
f8cf550c 1777 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
cc80f89e 1778
f8cf550c 1779 }
1780
1781 else {
5f16d237 1782 if(q <= 0.) continue; // do not fill zeros
68771f83 1783 if(q>2000.) q=2000.;
f8cf550c 1784 q *= 16.;
68771f83 1785 q = TMath::Nint(q);
f8cf550c 1786 }
8c555625 1787
1788 //
1789 // "real" signal or electronic noise (list = -1)?
1790 //
1791
1792 for(Int_t j1=0;j1<3;j1++){
407ff276 1793 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 1794 }
1795
cc80f89e 1796//Begin_Html
1797/*
1798 <A NAME="AliDigits"></A>
1799 using of AliDigits object
1800*/
1801//End_Html
1802 dig->SetDigitFast((Short_t)q,it,ip);
1803 if (fDigitsArray->IsSimulated())
1804 {
1805 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
1806 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
1807 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
1808 }
1809
8c555625 1810
1811 } // end of loop over time buckets
1812 } // end of lop over pads
1813
1814 //
1815 // This row has been digitized, delete nonused stuff
1816 //
1817
73042f01 1818 for(lp=0;lp<nofDigits;lp++){
8c555625 1819 if(pList[lp]) delete [] pList[lp];
1820 }
1821
1822 delete [] pList;
1823
1824 delete m1;
1825 delete m2;
cc80f89e 1826 // delete m3;
8c555625 1827
1828} // end of DigitizeRow
cc80f89e 1829
8c555625 1830//_____________________________________________________________________________
cc80f89e 1831
de61d5d5 1832Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
1833 AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
8c555625 1834{
1835
1836 //---------------------------------------------------------------
1837 // Calculates 2-D signal (pad,time) for a single track,
1838 // returns a pointer to the signal matrix and the track label
1839 // No digitization is performed at this level!!!
1840 //---------------------------------------------------------------
1841
1842 //-----------------------------------------------------------------
1843 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1844 // Modified: Marian Ivanov
8c555625 1845 //-----------------------------------------------------------------
1846
de61d5d5 1847 AliTPCFastVector *tv;
1848
1849 tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
1850 AliTPCFastVector &v = *tv;
8c555625 1851
1852 Float_t label = v(0);
b584c7dd 1853 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]-1)-1)/2;
8c555625 1854
8c555625 1855 Int_t nElectrons = (tv->GetNrows()-1)/4;
73042f01 1856 indexRange[0]=9999; // min pad
1857 indexRange[1]=-1; // max pad
1858 indexRange[2]=9999; //min time
1859 indexRange[3]=-1; // max time
8c555625 1860
de61d5d5 1861 AliTPCFastMatrix &signal = *m1;
1862 AliTPCFastMatrix &total = *m2;
8c555625 1863 //
1864 // Loop over all electrons
1865 //
8c555625 1866 for(Int_t nel=0; nel<nElectrons; nel++){
cc80f89e 1867 Int_t idx=nel*4;
1868 Float_t aval = v(idx+4);
1869 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
1870 Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
de61d5d5 1871 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
1872
1873 Int_t *index = fTPCParam->GetResBin(0);
1874 Float_t *weight = & (fTPCParam->GetResWeight(0));
1875
1876 if (n>0) for (Int_t i =0; i<n; i++){
73042f01 1877 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
de61d5d5 1878
1879 if (pad>=0){
cc80f89e 1880 Int_t time=index[2];
de61d5d5 1881 Float_t qweight = *(weight)*eltoadcfac;
cc80f89e 1882
de61d5d5 1883 if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
1884 total.UncheckedAt(pad,time)+=qweight;
1885 if (indexRange[0]>pad) indexRange[0]=pad;
1886 if (indexRange[1]<pad) indexRange[1]=pad;
1887 if (indexRange[2]>time) indexRange[2]=time;
1888 if (indexRange[3]<time) indexRange[3]=time;
1889
1890 index+=3;
1891 weight++;
1892
cc80f89e 1893 }
1894 }
8c555625 1895 } // end of loop over electrons
cc80f89e 1896
8c555625 1897 return label; // returns track label when finished
1898}
1899
1900//_____________________________________________________________________________
de61d5d5 1901void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *m,
1902 Int_t *indexRange, Float_t **pList)
8c555625 1903{
1904 //----------------------------------------------------------------------
1905 // Updates the list of tracks contributing to digits for a given row
1906 //----------------------------------------------------------------------
1907
1908 //-----------------------------------------------------------------
1909 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1910 //-----------------------------------------------------------------
1911
de61d5d5 1912 AliTPCFastMatrix &signal = *m;
8c555625 1913
1914 // lop over nonzero digits
1915
73042f01 1916 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
1917 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 1918
1919
921bf71a 1920 // accept only the contribution larger than 500 electrons (1/2 s_noise)
1921
cc80f89e 1922 if(signal(ip,it)<0.5) continue;
921bf71a 1923
1924
73042f01 1925 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 1926
73042f01 1927 if(!pList[globalIndex]){
8c555625 1928
1929 //
1930 // Create new list (6 elements - 3 signals and 3 labels),
8c555625 1931 //
1932
73042f01 1933 pList[globalIndex] = new Float_t [6];
8c555625 1934
1935 // set list to -1
1936
73042f01 1937 *pList[globalIndex] = -1.;
1938 *(pList[globalIndex]+1) = -1.;
1939 *(pList[globalIndex]+2) = -1.;
1940 *(pList[globalIndex]+3) = -1.;
1941 *(pList[globalIndex]+4) = -1.;
1942 *(pList[globalIndex]+5) = -1.;
8c555625 1943
1944
73042f01 1945 *pList[globalIndex] = label;
1946 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 1947 }
1948 else{
1949
1950 // check the signal magnitude
1951
73042f01 1952 Float_t highest = *(pList[globalIndex]+3);
1953 Float_t middle = *(pList[globalIndex]+4);
1954 Float_t lowest = *(pList[globalIndex]+5);
8c555625 1955
1956 //
1957 // compare the new signal with already existing list
1958 //
1959
1960 if(signal(ip,it)<lowest) continue; // neglect this track
1961
1962 //
1963
1964 if (signal(ip,it)>highest){
73042f01 1965 *(pList[globalIndex]+5) = middle;
1966 *(pList[globalIndex]+4) = highest;
1967 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 1968
73042f01 1969 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1970 *(pList[globalIndex]+1) = *pList[globalIndex];
1971 *pList[globalIndex] = label;
8c555625 1972 }
1973 else if (signal(ip,it)>middle){
73042f01 1974 *(pList[globalIndex]+5) = middle;
1975 *(pList[globalIndex]+4) = signal(ip,it);
8c555625 1976
73042f01 1977 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1978 *(pList[globalIndex]+1) = label;
8c555625 1979 }
1980 else{
73042f01 1981 *(pList[globalIndex]+5) = signal(ip,it);
1982 *(pList[globalIndex]+2) = label;
8c555625 1983 }
1984 }
1985
1986 } // end of loop over pads
1987 } // end of loop over time bins
1988
1989
1990
8c555625 1991}//end of GetList
1992//___________________________________________________________________
1993void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
1994 Stat_t ntracks,TObjArray **row)
1995{
1996
1997 //-----------------------------------------------------------------
1998 // Prepares the sector digitization, creates the vectors of
1999 // tracks for each row of this sector. The track vector
2000 // contains the track label and the position of electrons.
2001 //-----------------------------------------------------------------
2002
2003 //-----------------------------------------------------------------
2004 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2005 //-----------------------------------------------------------------
2006
cc80f89e 2007 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 2008 Int_t i;
cc80f89e 2009 Float_t xyz[4];
8c555625 2010
2011 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 2012 //MI change
2013 TBranch * branch=0;
792bb11c 2014 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 2015 else branch = TH->GetBranch("TPC");
2016
8c555625 2017
2018 //----------------------------------------------
2019 // Create TObjArray-s, one for each row,
de61d5d5 2020 // each TObjArray will store the AliTPCFastVectors
2021 // of electrons, one AliTPCFastVectors per each track.
8c555625 2022 //----------------------------------------------
2023
b584c7dd 2024 Int_t *nofElectrons = new Int_t [nrows+2]; // electron counter for each row
2025 AliTPCFastVector **tracks = new AliTPCFastVector* [nrows+2]; //pointers to the track vectors
de61d5d5 2026
b584c7dd 2027 for(i=0; i<nrows+2; i++){
8c555625 2028 row[i] = new TObjArray;
f74bb6f5 2029 nofElectrons[i]=0;
2030 tracks[i]=0;
8c555625 2031 }
8c555625 2032
37831078 2033
2034
8c555625 2035 //--------------------------------------------------------------------
2036 // Loop over tracks, the "track" contains the full history
2037 //--------------------------------------------------------------------
2038
2039 Int_t previousTrack,currentTrack;
2040 previousTrack = -1; // nothing to store so far!
2041
2042 for(Int_t track=0;track<ntracks;track++){
39c8eb58 2043 Bool_t isInSector=kTRUE;
8c555625 2044 ResetHits();
792bb11c 2045 isInSector = TrackInVolume(isec,track);
39c8eb58 2046 if (!isInSector) continue;
2047 //MI change
2048 branch->GetEntry(track); // get next track
2049
2050 //M.I. changes
8c555625 2051
39c8eb58 2052 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 2053
2054 //--------------------------------------------------------------
2055 // Loop over hits
2056 //--------------------------------------------------------------
2057
8c555625 2058
39c8eb58 2059 while(tpcHit){
8c555625 2060
2061 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 2062 if(sector != isec){
2063 tpcHit = (AliTPChit*) NextHit();
2064 continue;
2065 }
8c555625 2066
94de3818 2067 currentTrack = tpcHit->Track(); // track number
39c8eb58 2068
2069
8c555625 2070 if(currentTrack != previousTrack){
2071
2072 // store already filled fTrack
2073
b584c7dd 2074 for(i=0;i<nrows+2;i++){
8c555625 2075 if(previousTrack != -1){
73042f01 2076 if(nofElectrons[i]>0){
de61d5d5 2077 AliTPCFastVector &v = *tracks[i];
8c555625 2078 v(0) = previousTrack;
73042f01 2079 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2080 row[i]->Add(tracks[i]);
8c555625 2081 }
2082 else{
de61d5d5 2083 delete tracks[i]; // delete empty AliTPCFastVector
cc80f89e 2084 tracks[i]=0;
8c555625 2085 }
2086 }
2087
73042f01 2088 nofElectrons[i]=0;
de61d5d5 2089 tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors for the next fTrack
8c555625 2090
2091 } // end of loop over rows
2092
2093 previousTrack=currentTrack; // update track label
2094 }
2095
73042f01 2096 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 2097
2098 //---------------------------------------------------
2099 // Calculate the electron attachment probability
2100 //---------------------------------------------------
2101
cc80f89e 2102
94de3818 2103 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
cc80f89e 2104 /fTPCParam->GetDriftV();
8c555625 2105 // in microseconds!
73042f01 2106 Float_t attProb = fTPCParam->GetAttCoef()*
8c555625 2107 fTPCParam->GetOxyCont()*time; // fraction!
2108
2109 //-----------------------------------------------
2110 // Loop over electrons
2111 //-----------------------------------------------
cc80f89e 2112 Int_t index[3];
2113 index[1]=isec;
73042f01 2114 for(Int_t nel=0;nel<qI;nel++){
8c555625 2115 // skip if electron lost due to the attachment
73042f01 2116 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
94de3818 2117 xyz[0]=tpcHit->X();
2118 xyz[1]=tpcHit->Y();
1705494b 2119 xyz[2]=tpcHit->Z();
2120 //
2121 // protection for the nonphysical avalanche size (10**6 maximum)
2122 //
710dacf5 2123 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
2124 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
cc80f89e 2125 index[0]=1;
2126
b584c7dd 2127 TransportElectron(xyz,index);
73042f01 2128 Int_t rowNumber;
b584c7dd 2129 fTPCParam->GetPadRow(xyz,index);
2130 // row 0 - cross talk from the innermost row
2131 // row fNRow+1 cross talk from the outermost row
2132 rowNumber = index[2]+1;
cc80f89e 2133 //transform position to local digit coordinates
2134 //relative to nearest pad row
b584c7dd 2135 if ((rowNumber<0)||rowNumber>fTPCParam->GetNRow(isec)+1) continue;
2136 Float_t x1,y1;
f03e3423 2137 if (isec <fTPCParam->GetNInnerSector()) {
2138 x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
2139 y1 = fTPCParam->GetYInner(rowNumber);
2140 }
2141 else{
2142 x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
2143 y1 = fTPCParam->GetYOuter(rowNumber);
2144 }
e8f678d7 2145 // gain inefficiency at the wires edges - linear
f03e3423 2146 x1=TMath::Abs(x1);
e8f678d7 2147 y1-=1.;
2148 if(x1>y1) xyz[3]*=TMath::Max(1.e-6,(y1-x1+1.));
2149
73042f01 2150 nofElectrons[rowNumber]++;
8c555625 2151 //----------------------------------
2152 // Expand vector if necessary
2153 //----------------------------------
73042f01 2154 if(nofElectrons[rowNumber]>120){
2155 Int_t range = tracks[rowNumber]->GetNrows();
2156 if((nofElectrons[rowNumber])>(range-1)/4){
cc80f89e 2157
73042f01 2158 tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
fe4da5cc 2159 }
2160 }
2161
de61d5d5 2162 AliTPCFastVector &v = *tracks[rowNumber];
73042f01 2163 Int_t idx = 4*nofElectrons[rowNumber]-3;
de61d5d5 2164 Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
2165 memcpy(position,xyz,4*sizeof(Float_t));
2166
8c555625 2167 } // end of loop over electrons
39c8eb58 2168
2169 tpcHit = (AliTPChit*)NextHit();
8c555625 2170
2171 } // end of loop over hits
2172 } // end of loop over tracks
2173
2174 //
2175 // store remaining track (the last one) if not empty
2176 //
2177
b584c7dd 2178 for(i=0;i<nrows+2;i++){
73042f01 2179 if(nofElectrons[i]>0){
de61d5d5 2180 AliTPCFastVector &v = *tracks[i];
8c555625 2181 v(0) = previousTrack;
73042f01 2182 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2183 row[i]->Add(tracks[i]);
fe4da5cc 2184 }
2185 else{
cc80f89e 2186 delete tracks[i];
2187 tracks[i]=0;
8c555625 2188 }
2189 }
2190
cc80f89e 2191 delete [] tracks;
73042f01 2192 delete [] nofElectrons;
8c555625 2193
8c555625 2194
cc80f89e 2195} // end of MakeSector
8c555625 2196
fe4da5cc 2197
2198//_____________________________________________________________________________
2199void AliTPC::Init()
2200{
2201 //
2202 // Initialise TPC detector after definition of geometry
2203 //
2204 Int_t i;
2205 //
9e1a0ddb 2206 if(fDebug) {
2207 printf("\n%s: ",ClassName());
2208 for(i=0;i<35;i++) printf("*");
2209 printf(" TPC_INIT ");
2210 for(i=0;i<35;i++) printf("*");
2211 printf("\n%s: ",ClassName());
2212 //
2213 for(i=0;i<80;i++) printf("*");
2214 printf("\n");
2215 }
fe4da5cc 2216}
2217
2218//_____________________________________________________________________________
88cb7938 2219void AliTPC::MakeBranch(Option_t* option)
fe4da5cc 2220{
2221 //
2222 // Create Tree branches for the TPC.
2223 //
88cb7938 2224 if(GetDebug()) Info("MakeBranch","");
fe4da5cc 2225 Int_t buffersize = 4000;
2226 char branchname[10];
2227 sprintf(branchname,"%s",GetName());
88cb7938 2228
2229 const char *h = strstr(option,"H");
fe4da5cc 2230
88cb7938 2231 if ( h && (fHitType<=1) && (fHits == 0x0)) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
2232
2233 AliDetector::MakeBranch(option);
fe4da5cc 2234
5cf7bbad 2235 const char *d = strstr(option,"D");
88cb7938 2236
2237 if (fDigits && fLoader->TreeD() && d)
2238 {
2239 MakeBranchInTree(gAlice->TreeD(), branchname, &fDigits, buffersize, 0);
2240 }
fe4da5cc 2241
88cb7938 2242 if (fHitType>1) MakeBranch2(option,0); // MI change 14.09.2000
fe4da5cc 2243}
2244
2245//_____________________________________________________________________________
2246void AliTPC::ResetDigits()
2247{
2248 //
2249 // Reset number of digits and the digits array for this detector
fe4da5cc 2250 //
2251 fNdigits = 0;
cc80f89e 2252 if (fDigits) fDigits->Clear();
fe4da5cc 2253}
2254
2255//_____________________________________________________________________________
2256void AliTPC::SetSecAL(Int_t sec)
2257{
8c555625 2258 //---------------------------------------------------
fe4da5cc 2259 // Activate/deactivate selection for lower sectors
8c555625 2260 //---------------------------------------------------
2261
2262 //-----------------------------------------------------------------
2263 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2264 //-----------------------------------------------------------------
fe4da5cc 2265 fSecAL = sec;
2266}
2267
2268//_____________________________________________________________________________
2269void AliTPC::SetSecAU(Int_t sec)
2270{
8c555625 2271 //----------------------------------------------------
fe4da5cc 2272 // Activate/deactivate selection for upper sectors
8c555625 2273 //---------------------------------------------------
2274
2275 //-----------------------------------------------------------------
2276 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2277 //-----------------------------------------------------------------
fe4da5cc 2278 fSecAU = sec;
2279}
2280
2281//_____________________________________________________________________________
2282void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
2283{
8c555625 2284 //----------------------------------------
fe4da5cc 2285 // Select active lower sectors
8c555625 2286 //----------------------------------------
2287
2288 //-----------------------------------------------------------------
2289 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2290 //-----------------------------------------------------------------
2291
fe4da5cc 2292 fSecLows[0] = s1;
2293 fSecLows[1] = s2;
2294 fSecLows[2] = s3;
2295 fSecLows[3] = s4;
2296 fSecLows[4] = s5;
2297 fSecLows[5] = s6;
2298}
2299
2300//_____________________________________________________________________________
2301void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
2302 Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
2303 Int_t s11 , Int_t s12)
2304{
8c555625 2305 //--------------------------------
fe4da5cc 2306 // Select active upper sectors
8c555625 2307 //--------------------------------
2308
2309 //-----------------------------------------------------------------
2310 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2311 //-----------------------------------------------------------------
2312
fe4da5cc 2313 fSecUps[0] = s1;
2314 fSecUps[1] = s2;
2315 fSecUps[2] = s3;
2316 fSecUps[3] = s4;
2317 fSecUps[4] = s5;
2318 fSecUps[5] = s6;
2319 fSecUps[6] = s7;
2320 fSecUps[7] = s8;
2321 fSecUps[8] = s9;
2322 fSecUps[9] = s10;
2323 fSecUps[10] = s11;
2324 fSecUps[11] = s12;
2325}
2326
2327//_____________________________________________________________________________
2328void AliTPC::SetSens(Int_t sens)
2329{
8c555625 2330
2331 //-------------------------------------------------------------
2332 // Activates/deactivates the sensitive strips at the center of
2333 // the pad row -- this is for the space-point resolution calculations
2334 //-------------------------------------------------------------
2335
2336 //-----------------------------------------------------------------
2337 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2338 //-----------------------------------------------------------------
2339
fe4da5cc 2340 fSens = sens;
2341}
2b06d5c3 2342
4b0fdcad 2343
73042f01 2344void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2345{
73042f01 2346 // choice of the TPC side
2347
4b0fdcad 2348 fSide = side;
2349
2350}
1283eee5 2351//____________________________________________________________________________
2352void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
2353 Float_t p2,Float_t p3)
2354{
fe4da5cc 2355
73042f01 2356 // gax mixture definition
2357
1283eee5 2358 fNoComp = nc;
2359
2360 fMixtComp[0]=c1;
2361 fMixtComp[1]=c2;
2362 fMixtComp[2]=c3;
2363
2364 fMixtProp[0]=p1;
2365 fMixtProp[1]=p2;
2366 fMixtProp[2]=p3;
2367
2368
cc80f89e 2369}
2370//_____________________________________________________________________________
2371
2372void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2373{
2374 //
2375 // electron transport taking into account:
2376 // 1. diffusion,
2377 // 2.ExB at the wires
2378 // 3. nonisochronity
2379 //
2380 // xyz and index must be already transformed to system 1
2381 //
2382
2383 fTPCParam->Transform1to2(xyz,index);
2384
2385 //add diffusion
2386 Float_t driftl=xyz[2];
2387 if(driftl<0.01) driftl=0.01;
2388 driftl=TMath::Sqrt(driftl);
73042f01 2389 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2390 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2391 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2392 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2393 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2394
2395 // ExB
2396
2397 if (fTPCParam->GetMWPCReadout()==kTRUE){
b584c7dd 2398 Float_t dx = fTPCParam->Transform2to2NearestWire(xyz,index);
cc80f89e 2399 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2400 }
b584c7dd 2401 //add nonisochronity (not implemented yet)
1283eee5 2402}
fe4da5cc 2403
fe4da5cc 2404ClassImp(AliTPCdigit)
2405
2406//_____________________________________________________________________________
2407AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
2408 AliDigit(tracks)
2409{
2410 //
2411 // Creates a TPC digit object
2412 //
2413 fSector = digits[0];
2414 fPadRow = digits[1];
2415 fPad = digits[2];
2416 fTime = digits[3];
2417 fSignal = digits[4];
2418}
2419
2420
2421ClassImp(AliTPChit)
2422
2423//_____________________________________________________________________________
2424AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2425AliHit(shunt,track)
2426{
2427 //
2428 // Creates a TPC hit object
2429 //
2430 fSector = vol[0];
2431 fPadRow = vol[1];
2432 fX = hits[0];
2433 fY = hits[1];
2434 fZ = hits[2];
2435 fQ = hits[3];
2436}
2437
39c8eb58 2438//________________________________________________________________________
792bb11c 2439// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2440
176aff27 2441void AliTPC::MakeBranch2(Option_t *option,const char */*file*/)
39c8eb58 2442{
2443 //
2444 // Create a new branch in the current Root Tree
2445 // The branch of fHits is automatically split
2446 // MI change 14.09.2000
88cb7938 2447 if(GetDebug()) Info("MakeBranch2","");
792bb11c 2448 if (fHitType<2) return;
39c8eb58 2449 char branchname[10];
2450 sprintf(branchname,"%s2",GetName());
2451 //
2452 // Get the pointer to the header
5cf7bbad 2453 const char *cH = strstr(option,"H");
39c8eb58 2454 //
88cb7938 2455 if (fTrackHits && TreeH() && cH && fHitType&4)
2456 {
2457 if(GetDebug()) Info("MakeBranch2","Making branch for Type 4 Hits");
2458 TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,fBufferSize,99);
2459 }
792bb11c 2460
88cb7938 2461 if (fTrackHitsOld && TreeH() && cH && fHitType&2)
2462 {
2463 if(GetDebug()) Info("MakeBranch2","Making branch for Type 2 Hits");
792bb11c 2464 AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
88cb7938 2465 TreeH(),fBufferSize,99);
2466 TreeH()->GetListOfBranches()->Add(branch);
2467 }
39c8eb58 2468}
2469
2470void AliTPC::SetTreeAddress()
2471{
88cb7938 2472//Sets tree address for hits
2473 if (fHitType<=1)
2474 {
2475 if (fHits == 0x0 ) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
2476 AliDetector::SetTreeAddress();
2477 }
792bb11c 2478 if (fHitType>1) SetTreeAddress2();
39c8eb58 2479}
2480
2481void AliTPC::SetTreeAddress2()
2482{
2483 //
2484 // Set branch address for the TrackHits Tree
2485 //
88cb7938 2486 if(GetDebug()) Info("SetTreeAddress2","");
2487
39c8eb58 2488 TBranch *branch;
2489 char branchname[20];
2490 sprintf(branchname,"%s2",GetName());
2491 //
2492 // Branch address for hit tree
88cb7938 2493 TTree *treeH = TreeH();
792bb11c 2494 if ((treeH)&&(fHitType&4)) {
39c8eb58 2495 branch = treeH->GetBranch(branchname);
88cb7938 2496 if (branch)
2497 {
2498 branch->SetAddress(&fTrackHits);
f2a509af 2499 if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Setting");
88cb7938 2500 }
f2a509af 2501 else
2502 if (GetDebug()) Info("SetTreeAddress2","fHitType&4 Failed (can not find branch)");
2503
39c8eb58 2504 }
792bb11c 2505 if ((treeH)&&(fHitType&2)) {
2506 branch = treeH->GetBranch(branchname);
88cb7938 2507 if (branch)
2508 {
2509 branch->SetAddress(&fTrackHitsOld);
f2a509af 2510 if (GetDebug()) Info("SetTreeAddress2","fHitType&2 Setting");
88cb7938 2511 }
f2a509af 2512 else if (GetDebug())
2513 Info("SetTreeAddress2","fHitType&2 Failed (can not find branch)");
792bb11c 2514 }
b6e0d3fe 2515 //set address to TREETR
88cb7938 2516
2517 TTree *treeTR = TreeTR();
b6e0d3fe 2518 if (treeTR && fTrackReferences) {
2519 branch = treeTR->GetBranch(GetName());
2520 if (branch) branch->SetAddress(&fTrackReferences);
2521 }
2522
39c8eb58 2523}
2524
2525void AliTPC::FinishPrimary()
2526{
792bb11c 2527 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
2528 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2529}
2530
2531
2532void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2533{
2534 //
2535 // add hit to the list
39c8eb58 2536 Int_t rtrack;
2537 if (fIshunt) {
5d12ce38 2538 int primary = gAlice->GetMCApp()->GetPrimary(track);
2539 gAlice->GetMCApp()->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2540 rtrack=primary;
2541 } else {
2542 rtrack=track;
5d12ce38 2543 gAlice->GetMCApp()->FlagTrack(track);
39c8eb58 2544 }
2545 //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
2546 //if (hit->fTrack!=rtrack)
2547 // cout<<"bad track number\n";
792bb11c 2548 if (fTrackHits && fHitType&4)
39c8eb58 2549 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
88cb7938 2550 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2551 if (fTrackHitsOld &&fHitType&2 )
2552 fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
88cb7938 2553 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2554
39c8eb58 2555}
2556
2557void AliTPC::ResetHits()
88cb7938 2558{
39c8eb58 2559 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2560 if (fHitType>1) ResetHits2();
39c8eb58 2561}
2562
2563void AliTPC::ResetHits2()
2564{
2565 //
2566 //reset hits
792bb11c 2567 if (fTrackHits && fHitType&4) fTrackHits->Clear();
2568 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
2569
39c8eb58 2570}
2571
2572AliHit* AliTPC::FirstHit(Int_t track)
2573{
792bb11c 2574 if (fHitType>1) return FirstHit2(track);
39c8eb58 2575 return AliDetector::FirstHit(track);
2576}
2577AliHit* AliTPC::NextHit()
2578{
792bb11c 2579 if (fHitType>1) return NextHit2();
2580
39c8eb58 2581 return AliDetector::NextHit();
2582}
2583
2584AliHit* AliTPC::FirstHit2(Int_t track)
2585{
2586 //
2587 // Initialise the hit iterator
2588 // Return the address of the first hit for track
2589 // If track>=0 the track is read from disk
2590 // while if track<0 the first hit of the current
2591 // track is returned
2592 //
2593 if(track>=0) {
2594 gAlice->ResetHits();
88cb7938 2595 TreeH()->GetEvent(track);
39c8eb58 2596 }
2597 //
792bb11c 2598 if (fTrackHits && fHitType&4) {
39c8eb58 2599 fTrackHits->First();
2600 return fTrackHits->GetHit();
2601 }
792bb11c 2602 if (fTrackHitsOld && fHitType&2) {
2603 fTrackHitsOld->First();
2604 return fTrackHitsOld->GetHit();
2605 }
2606
39c8eb58 2607 else return 0;
2608}
2609
2610AliHit* AliTPC::NextHit2()
2611{
2612 //
2613 //Return the next hit for the current track
2614
792bb11c 2615
2616 if (fTrackHitsOld && fHitType&2) {
2617 fTrackHitsOld->Next();
2618 return fTrackHitsOld->GetHit();
2619 }
39c8eb58 2620 if (fTrackHits) {
2621 fTrackHits->Next();
2622 return fTrackHits->GetHit();
2623 }
2624 else
2625 return 0;
2626}
2627
2628void AliTPC::LoadPoints(Int_t)
2629{
2630 //
2631 Int_t a = 0;
f2e8b846 2632 /* if(fHitType==1) return AliDetector::LoadPoints(a);
39c8eb58 2633 LoadPoints2(a);
f2e8b846 2634 */
2635 if(fHitType==1) AliDetector::LoadPoints(a);
2636 else LoadPoints2(a);
2637
39c8eb58 2638 // LoadPoints3(a);
2639
2640}
2641
2642
2643void AliTPC::RemapTrackHitIDs(Int_t *map)
2644{
2645 if (!fTrackHits) return;
39c8eb58 2646
792bb11c 2647 if (fTrackHitsOld && fHitType&2){
2648 AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2649 for (UInt_t i=0;i<arr->GetSize();i++){
2650 AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2651 info->fTrackID = map[info->fTrackID];
2652 }
2653 }
2654 if (fTrackHitsOld && fHitType&4){
2655 TClonesArray * arr = fTrackHits->GetArray();;
2656 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2657 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2658 info->fTrackID = map[info->fTrackID];
2659 }
2660 }
39c8eb58 2661}
2662
792bb11c 2663Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2664{
2665 //return bool information - is track in given volume
2666 //load only part of the track information
2667 //return true if current track is in volume
2668 //
2669 // return kTRUE;
2670 if (fTrackHitsOld && fHitType&2) {
88cb7938 2671 TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
792bb11c 2672 br->GetEvent(track);
2673 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2674 for (UInt_t j=0;j<ar->GetSize();j++){
2675 if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2676 }
2677 }
2678
2679 if (fTrackHits && fHitType&4) {
88cb7938 2680 TBranch * br1 = TreeH()->GetBranch("fVolumes");
2681 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 2682 br2->GetEvent(track);
2683 br1->GetEvent(track);
2684 Int_t *volumes = fTrackHits->GetVolumes();
2685 Int_t nvolumes = fTrackHits->GetNVolumes();
2686 if (!volumes && nvolumes>0) {
2687 printf("Problematic track\t%d\t%d",track,nvolumes);
2688 return kFALSE;
2689 }
2690 for (Int_t j=0;j<nvolumes; j++)
2691 if (volumes[j]==id) return kTRUE;
2692 }
2693
2694 if (fHitType&1) {
88cb7938 2695 TBranch * br = TreeH()->GetBranch("fSector");
792bb11c 2696 br->GetEvent(track);
2697 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2698 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2699 }
2700 }
2701 return kFALSE;
2702
2703}
39c8eb58 2704
2705//_____________________________________________________________________________
2706void AliTPC::LoadPoints2(Int_t)
2707{
2708 //
2709 // Store x, y, z of all hits in memory
2710 //
792bb11c 2711 if (fTrackHits == 0 && fTrackHitsOld==0) return;
39c8eb58 2712 //
792bb11c 2713 Int_t nhits =0;
2714 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
2715 if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
2716
39c8eb58 2717 if (nhits == 0) return;
5d12ce38 2718 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2719 if (fPoints == 0) fPoints = new TObjArray(tracks);
2720 AliHit *ahit;
2721 //
2722 Int_t *ntrk=new Int_t[tracks];
2723 Int_t *limi=new Int_t[tracks];
2724 Float_t **coor=new Float_t*[tracks];
2725 for(Int_t i=0;i<tracks;i++) {
2726 ntrk[i]=0;
2727 coor[i]=0;
2728 limi[i]=0;
2729 }
2730 //
2731 AliPoints *points = 0;
2732 Float_t *fp=0;
2733 Int_t trk;
2734 Int_t chunk=nhits/4+1;
2735 //
2736 // Loop over all the hits and store their position
2737 //
2738 ahit = FirstHit2(-1);
39c8eb58 2739 while (ahit){
39c8eb58 2740 trk=ahit->GetTrack();
2741 if(ntrk[trk]==limi[trk]) {
2742 //
2743 // Initialise a new track
2744 fp=new Float_t[3*(limi[trk]+chunk)];
2745 if(coor[trk]) {
2746 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2747 delete [] coor[trk];
2748 }
2749 limi[trk]+=chunk;
2750 coor[trk] = fp;
2751 } else {
2752 fp = coor[trk];
2753 }
2754 fp[3*ntrk[trk] ] = ahit->X();
2755 fp[3*ntrk[trk]+1] = ahit->Y();
2756 fp[3*ntrk[trk]+2] = ahit->Z();
2757 ntrk[trk]++;
2758 ahit = NextHit2();
2759 }
792bb11c 2760
2761
2762
39c8eb58 2763 //
2764 for(trk=0; trk<tracks; ++trk) {
2765 if(ntrk[trk]) {
2766 points = new AliPoints();
2767 points->SetMarkerColor(GetMarkerColor());
2768 points->SetMarkerSize(GetMarkerSize());
2769 points->SetDetector(this);
2770 points->SetParticle(trk);
2771 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
2772 fPoints->AddAt(points,trk);
2773 delete [] coor[trk];
2774 coor[trk]=0;
2775 }
2776 }
2777 delete [] coor;
2778 delete [] ntrk;
2779 delete [] limi;
2780}
2781
2782
2783//_____________________________________________________________________________
2784void AliTPC::LoadPoints3(Int_t)
2785{
2786 //
2787 // Store x, y, z of all hits in memory
2788 // - only intersection point with pad row
2789 if (fTrackHits == 0) return;
2790 //
2791 Int_t nhits = fTrackHits->GetEntriesFast();
2792 if (nhits == 0) return;
5d12ce38 2793 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2794 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
2795 fPoints->Expand(2*tracks);
2796 AliHit *ahit;
2797 //
2798 Int_t *ntrk=new Int_t[tracks];
2799 Int_t *limi=new Int_t[tracks];
2800 Float_t **coor=new Float_t*[tracks];
2801 for(Int_t i=0;i<tracks;i++) {
2802 ntrk[i]=0;
2803 coor[i]=0;
2804 limi[i]=0;
2805 }
2806 //
2807 AliPoints *points = 0;
2808 Float_t *fp=0;
2809 Int_t trk;
2810 Int_t chunk=nhits/4+1;
2811 //
2812 // Loop over all the hits and store their position
2813 //
2814 ahit = FirstHit2(-1);
2815 //for (Int_t hit=0;hit<nhits;hit++) {
2816
2817 Int_t lastrow = -1;
2818 while (ahit){
2819 // ahit = (AliHit*)fHits->UncheckedAt(hit);
2820 trk=ahit->GetTrack();
2821 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
2822 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
2823 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2824 if (currentrow!=lastrow){
2825 lastrow = currentrow;
2826 //later calculate intersection point
2827 if(ntrk[trk]==limi[trk]) {
2828 //
2829 // Initialise a new track
2830 fp=new Float_t[3*(limi[trk]+chunk)];
2831 if(coor[trk]) {
2832 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2833 delete [] coor[trk];
2834 }
2835 limi[trk]+=chunk;
2836 coor[trk] = fp;
2837 } else {
2838 fp = coor[trk];
2839 }
2840 fp[3*ntrk[trk] ] = ahit->X();
2841 fp[3*ntrk[trk]+1] = ahit->Y();
2842 fp[3*ntrk[trk]+2] = ahit->Z();
2843 ntrk[trk]++;
2844 }
2845 ahit = NextHit2();
2846 }
2847
2848 //
2849 for(trk=0; trk<tracks; ++trk) {
2850 if(ntrk[trk]) {
2851 points = new AliPoints();
2852 points->SetMarkerColor(GetMarkerColor()+1);
2853 points->SetMarkerStyle(5);
2854 points->SetMarkerSize(0.2);
2855 points->SetDetector(this);
2856 points->SetParticle(trk);
2857 // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
2858 points->SetPolyMarker(ntrk[trk],coor[trk],30);
2859 fPoints->AddAt(points,tracks+trk);
2860 delete [] coor[trk];
2861 coor[trk]=0;
2862 }
2863 }
2864 delete [] coor;
2865 delete [] ntrk;
2866 delete [] limi;
2867}
2868
2869
2870
176aff27 2871void AliTPC::FindTrackHitsIntersection(TClonesArray * /*arr*/)
39c8eb58 2872{
2873
2874 //
2875 //fill clones array with intersection of current point with the
2876 //middle of the row
2877 Int_t sector;
2878 Int_t ipart;
2879
2880 const Int_t kcmaxhits=30000;
de61d5d5 2881 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
2882 AliTPCFastVector & xxx = *xxxx;
39c8eb58 2883 Int_t maxhits = kcmaxhits;
2884
2885 //
2886 AliTPChit * tpcHit=0;
2887 tpcHit = (AliTPChit*)FirstHit2(-1);
2888 Int_t currentIndex=0;
2889 Int_t lastrow=-1; //last writen row
2890
2891 while (tpcHit){
2892 if (tpcHit==0) continue;
2893 sector=tpcHit->fSector; // sector number
2894 ipart=tpcHit->Track();
2895
2896 //find row number
2897
2898 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
2899 Int_t index[3]={1,sector,0};
2900 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2901 if (currentrow<0) continue;
2902 if (lastrow<0) lastrow=currentrow;
2903 if (currentrow==lastrow){
2904 if ( currentIndex>=maxhits){
2905 maxhits+=kcmaxhits;
2906 xxx.ResizeTo(4*maxhits);
2907 }
2908 xxx(currentIndex*4)=x[0];
2909 xxx(currentIndex*4+1)=x[1];
2910 xxx(currentIndex*4+2)=x[2];
2911 xxx(currentIndex*4+3)=tpcHit->fQ;
2912 currentIndex++;
2913 }
2914 else
2915 if (currentIndex>2){
2916 Float_t sumx=0;
2917 Float_t sumx2=0;
2918 Float_t sumx3=0;
2919 Float_t sumx4=0;
2920 Float_t sumy=0;
2921 Float_t sumxy=0;
2922 Float_t sumx2y=0;
2923 Float_t sumz=0;
2924 Float_t sumxz=0;
2925 Float_t sumx2z=0;
2926 Float_t sumq=0;
2927 for (Int_t index=0;index<currentIndex;index++){
2928 Float_t x,x2,x3,x4;
2929 x=x2=x3=x4=xxx(index*4);
2930 x2*=x;
2931 x3*=x2;
2932 x4*=x3;
2933 sumx+=x;
2934 sumx2+=x2;
2935 sumx3+=x3;
2936 sumx4+=x4;
2937 sumy+=xxx(index*4+1);
2938 sumxy+=xxx(index*4+1)*x;
2939 sumx2y+=xxx(index*4+1)*x2;
2940 sumz+=xxx(index*4+2);
2941 sumxz+=xxx(index*4+2)*x;
2942 sumx2z+=xxx(index*4+2)*x2;
2943 sumq+=xxx(index*4+3);
2944 }
2945 Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2;
2946 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
2947 sumx2*(sumx*sumx3-sumx2*sumx2);
2948
2949 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
2950 sumx2*(sumxy*sumx3-sumx2y*sumx2);
2951 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
2952 sumx2*(sumxz*sumx3-sumx2z*sumx2);
2953
2954 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
2955 sumx2*(sumx*sumx2y-sumx2*sumxy);
2956 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
2957 sumx2*(sumx*sumx2z-sumx2*sumxz);
2958
2959 Float_t y=detay/det+centralPad;
2960 Float_t z=detaz/det;
2961 Float_t by=detby/det; //y angle
2962 Float_t bz=detbz/det; //z angle
2963 sumy/=Float_t(currentIndex);
2964 sumz/=Float_t(currentIndex);
2965
2966 AliComplexCluster cl;
2967 cl.fX=z;
2968 cl.fY=y;
2969 cl.fQ=sumq;
2970 cl.fSigmaX2=bz;
2971 cl.fSigmaY2=by;
2972 cl.fTracks[0]=ipart;
2973
2974 AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
2975 if (row!=0) row->InsertCluster(&cl);
2976 currentIndex=0;
2977 lastrow=currentrow;
2978 } //end of calculating cluster for given row
2979
2980 } // end of loop over hits
2981 xxxx->Delete();
39c8eb58 2982
2983}
afc42102 2984//_______________________________________________________________________________
a62d28a2 2985void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
afc42102 2986{
a62d28a2 2987 // produces rec points from digits and writes them on the root file
2988 // AliTPCclusters.root
2989
2990 TDirectory *cwd = gDirectory;
2991
2992
7a09f434 2993 AliTPCParamSR *dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60");
2994 if(dig){
2995 printf("You are running 2 pad-length geom hits with 3 pad-length geom digits\n");
2996 delete dig;
2997 dig = new AliTPCParamSR();
2998 }
2999 else
3000 {
3001 dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
3002 }
3003 if(!dig){
3004 printf("No TPC parameters found\n");
3005 exit(3);
3006 }
3007
a62d28a2 3008 SetParam(dig);
3009 cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
3010 TFile *out;
3011 if(!gSystem->Getenv("CONFIG_FILE")){
3012 out=TFile::Open("AliTPCclusters.root","recreate");
3013 }
3014 else {
3015 const char *tmp1;
3016 const char *tmp2;
3017 char tmp3[80];
3018 tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
3019 tmp2=gSystem->Getenv("CONFIG_OUTDIR");
3020 sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
3021 out=TFile::Open(tmp3,"recreate");
3022 }
3023
3024 TStopwatch timer;
3025 cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
3026 timer.Start();
3027 cwd->cd();
3028 for(Int_t iev=firstevent;iev<lastevent+1;iev++){
3029
3030 printf("Processing event %d\n",iev);
88cb7938 3031 Digits2Clusters(iev);
a62d28a2 3032 }
3033 cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
3034 timer.Stop();
3035 timer.Print();
3036 out->Close();
3037 cwd->cd();
3038
3039
afc42102 3040}
42157e55 3041
88cb7938 3042AliLoader* AliTPC::MakeLoader(const char* topfoldername)
3043{
f2a509af 3044//Makes TPC loader
88cb7938 3045 fLoader = new AliTPCLoader(GetName(),topfoldername);
88cb7938 3046 return fLoader;
3047}
3048
42157e55 3049////////////////////////////////////////////////////////////////////////
3050AliTPCParam* AliTPC::LoadTPCParam(TFile *file) {
3051//
3052// load TPC paarmeters from a given file or create new if the object
3053// is not found there
88cb7938 3054// 12/05/2003 This method should be moved to the AliTPCLoader
3055// and one has to decide where to store the TPC parameters
3056// M.Kowalski
42157e55 3057 char paramName[50];
3058 sprintf(paramName,"75x40_100x60_150x60");
3059 AliTPCParam *paramTPC=(AliTPCParam*)file->Get(paramName);
3060 if (paramTPC) {
3061 cout<<"TPC parameters "<<paramName<<" found."<<endl;
3062 } else {
3063 cerr<<"TPC parameters not found. Create new (they may be incorrect)."
3064 <<endl;
3065 paramTPC = new AliTPCParamSR;
3066 }
3067 return paramTPC;
3068
3069// the older version of parameters can be accessed with this code.
3070// In some cases, we have old parameters saved in the file but
3071// digits were created with new parameters, it can be distinguish
3072// by the name of TPC TreeD. The code here is just for the case
3073// we would need to compare with old data, uncomment it if needed.
3074//
3075// char paramName[50];
3076// sprintf(paramName,"75x40_100x60");
3077// AliTPCParam *paramTPC=(AliTPCParam*)in->Get(paramName);
3078// if (paramTPC) {
3079// cout<<"TPC parameters "<<paramName<<" found."<<endl;
3080// } else {
3081// sprintf(paramName,"75x40_100x60_150x60");
3082// paramTPC=(AliTPCParam*)in->Get(paramName);
3083// if (paramTPC) {
3084// cout<<"TPC parameters "<<paramName<<" found."<<endl;
3085// } else {
3086// cerr<<"TPC parameters not found. Create new (they may be incorrect)."
3087// <<endl;
3088// paramTPC = new AliTPCParamSR;
3089// }
3090// }
3091// return paramTPC;
3092
3093}
3094
85a5290f 3095
3096//____________________________________________________________________________
7138dcae 3097Double_t SigmaY2(Double_t r, Double_t tgl, Double_t pt)
3098{
3099 //
85a5290f 3100 // Parametrised error of the cluster reconstruction (pad direction)
7138dcae 3101 //
3102 // Sigma rphi
3103 const Float_t kArphi=0.41818e-2;
3104 const Float_t kBrphi=0.17460e-4;
3105 const Float_t kCrphi=0.30993e-2;
3106 const Float_t kDrphi=0.41061e-3;
85a5290f 3107
7138dcae 3108 pt=TMath::Abs(pt)*1000.;
3109 Double_t x=r/pt;
3110 tgl=TMath::Abs(tgl);
3111 Double_t s=kArphi - kBrphi*r*tgl + kCrphi*x*x + kDrphi*x;
3112 if (s<0.4e-3) s=0.4e-3;
3113 s*=1.3; //Iouri Belikov
3114
3115 return s;
3116}
3117
85a5290f 3118
3119//____________________________________________________________________________
3120Double_t SigmaZ2(Double_t r, Double_t tgl)
7138dcae 3121{
3122 //
3123 // Parametrised error of the cluster reconstruction (drift direction)
3124 //
3125 // Sigma z
3126 const Float_t kAz=0.39614e-2;
3127 const Float_t kBz=0.22443e-4;
3128 const Float_t kCz=0.51504e-1;
85a5290f 3129
7138dcae 3130
3131 tgl=TMath::Abs(tgl);
3132 Double_t s=kAz - kBz*r*tgl + kCz*tgl*tgl;
3133 if (s<0.4e-3) s=0.4e-3;
3134 s*=1.3; //Iouri Belikov
3135
3136 return s;
3137}
85a5290f 3138