Raw2SDigits method added.
[u/mrichter/AliRoot.git] / TPC / AliTPC.cxx
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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
88cb7938 16/* $Id$ */
4c039060 17
fe4da5cc 18///////////////////////////////////////////////////////////////////////////////
19// //
20// Time Projection Chamber //
21// This class contains the basic functions for the Time Projection Chamber //
22// detector. Functions specific to one particular geometry are //
23// contained in the derived classes //
24// //
25//Begin_Html
26/*
1439f98e 27<img src="picts/AliTPCClass.gif">
fe4da5cc 28*/
29//End_Html
30// //
8c555625 31// //
fe4da5cc 32///////////////////////////////////////////////////////////////////////////////
33
73042f01 34//
35
88cb7938 36#include <Riostream.h>
37#include <stdlib.h>
38
39#include <TFile.h>
40#include <TGeometry.h>
41#include <TInterpreter.h>
fe4da5cc 42#include <TMath.h>
e8d02863 43#include <TMatrixF.h>
44#include <TVector.h>
fe4da5cc 45#include <TNode.h>
fe4da5cc 46#include <TObjectTable.h>
88cb7938 47#include <TParticle.h>
afc42102 48#include <TROOT.h>
88cb7938 49#include <TRandom.h>
afc42102 50#include <TSystem.h>
88cb7938 51#include <TTUBS.h>
52#include <TTree.h>
88cb7938 53#include <TVirtualMC.h>
2a336e15 54#include <TString.h>
55#include <TF2.h>
4c57c771 56#include <TStopwatch.h>
cc80f89e 57
cc80f89e 58#include "AliDigits.h"
88cb7938 59#include "AliMagF.h"
60#include "AliPoints.h"
61#include "AliRun.h"
62#include "AliRunLoader.h"
cc80f89e 63#include "AliSimDigits.h"
88cb7938 64#include "AliTPC.h"
65#include "AliTPC.h"
88cb7938 66#include "AliTPCDigitsArray.h"
67#include "AliTPCLoader.h"
68#include "AliTPCPRF2D.h"
69#include "AliTPCParamSR.h"
70#include "AliTPCRF1D.h"
be5ffbfe 71//#include "AliTPCTrackHits.h"
792bb11c 72#include "AliTPCTrackHitsV2.h"
88cb7938 73#include "AliTrackReference.h"
5d12ce38 74#include "AliMC.h"
85a5290f 75#include "AliTPCDigitizer.h"
0421c3d1 76#include "AliTPCBuffer.h"
77#include "AliTPCDDLRawData.h"
8c2b3fd7 78#include "AliLog.h"
bc807150 79#include "AliRawReader.h"
80#include "AliTPCRawStream.h"
39c8eb58 81
fe4da5cc 82ClassImp(AliTPC)
fe4da5cc 83//_____________________________________________________________________________
84AliTPC::AliTPC()
85{
86 //
87 // Default constructor
88 //
89 fIshunt = 0;
fe4da5cc 90 fHits = 0;
91 fDigits = 0;
fe4da5cc 92 fNsectors = 0;
cc80f89e 93 fDigitsArray = 0;
afc42102 94 fDefaults = 0;
792bb11c 95 fTrackHits = 0;
be5ffbfe 96 // fTrackHitsOld = 0;
8c2b3fd7 97#if ROOT_VERSION_CODE >= ROOT_VERSION(4,0,1)
98 fHitType = 4; // ROOT containers
99#else
100 fHitType = 2; //default CONTAINERS - based on ROOT structure
101#endif
407ff276 102 fTPCParam = 0;
103 fNoiseTable = 0;
792bb11c 104 fActiveSectors =0;
051c6d66 105 fSens = 0;
407ff276 106
fe4da5cc 107}
108
109//_____________________________________________________________________________
110AliTPC::AliTPC(const char *name, const char *title)
111 : AliDetector(name,title)
112{
113 //
114 // Standard constructor
115 //
116
117 //
118 // Initialise arrays of hits and digits
119 fHits = new TClonesArray("AliTPChit", 176);
5d12ce38 120 gAlice->GetMCApp()->AddHitList(fHits);
cc80f89e 121 fDigitsArray = 0;
afc42102 122 fDefaults = 0;
fe4da5cc 123 //
792bb11c 124 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 125 fTrackHits->SetHitPrecision(0.002);
126 fTrackHits->SetStepPrecision(0.003);
792bb11c 127 fTrackHits->SetMaxDistance(100);
128
be5ffbfe 129 //fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
130 //fTrackHitsOld->SetHitPrecision(0.002);
131 //fTrackHitsOld->SetStepPrecision(0.003);
132 //fTrackHitsOld->SetMaxDistance(100);
792bb11c 133
407ff276 134 fNoiseTable =0;
39c8eb58 135
8c2b3fd7 136#if ROOT_VERSION_CODE >= ROOT_VERSION(4,0,1)
137 fHitType = 4; // ROOT containers
138#else
da33556f 139 fHitType = 2;
8c2b3fd7 140#endif
792bb11c 141 fActiveSectors = 0;
39c8eb58 142 //
fe4da5cc 143 // Initialise counters
cc80f89e 144 fNsectors = 0;
cc80f89e 145
fe4da5cc 146 //
147 fIshunt = 0;
148 //
149 // Initialise color attributes
150 SetMarkerColor(kYellow);
73042f01 151
152 //
153 // Set TPC parameters
154 //
155
afc42102 156
157 if (!strcmp(title,"Default")) {
158 fTPCParam = new AliTPCParamSR;
73042f01 159 } else {
8c2b3fd7 160 AliWarning("In Config.C you must set non-default parameters.");
73042f01 161 fTPCParam=0;
162 }
051c6d66 163 fSens = 0;
73042f01 164
fe4da5cc 165}
166
167//_____________________________________________________________________________
9bdd974b 168AliTPC::AliTPC(const AliTPC& t):AliDetector(t){
169 //
170 // dummy copy constructor
171 //
172}
fe4da5cc 173AliTPC::~AliTPC()
174{
175 //
176 // TPC destructor
177 //
73042f01 178
fe4da5cc 179 fIshunt = 0;
180 delete fHits;
181 delete fDigits;
73042f01 182 delete fTPCParam;
39c8eb58 183 delete fTrackHits; //MI 15.09.2000
be5ffbfe 184 // delete fTrackHitsOld; //MI 10.12.2001
9ff4af81 185
186 fDigitsArray = 0x0;
187 delete [] fNoiseTable;
188 delete [] fActiveSectors;
407ff276 189
fe4da5cc 190}
191
fe4da5cc 192//_____________________________________________________________________________
193void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
194{
195 //
196 // Add a hit to the list
197 //
39c8eb58 198 if (fHitType&1){
199 TClonesArray &lhits = *fHits;
200 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
201 }
792bb11c 202 if (fHitType>1)
8c2b3fd7 203 AddHit2(track,vol,hits);
fe4da5cc 204}
88cb7938 205
fe4da5cc 206//_____________________________________________________________________________
207void AliTPC::BuildGeometry()
208{
cc80f89e 209
fe4da5cc 210 //
211 // Build TPC ROOT TNode geometry for the event display
212 //
73042f01 213 TNode *nNode, *nTop;
fe4da5cc 214 TTUBS *tubs;
215 Int_t i;
216 const int kColorTPC=19;
1283eee5 217 char name[5], title[25];
fe4da5cc 218 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 219 const Double_t kRaddeg=180./TMath::Pi();
220
1283eee5 221
73042f01 222 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
223 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 224
73042f01 225 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
226 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 227
228 Int_t nLo = fTPCParam->GetNInnerSector()/2;
229 Int_t nHi = fTPCParam->GetNOuterSector()/2;
230
73042f01 231 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
232 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
233 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
234 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 235
236
73042f01 237 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
238 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 239
240 Double_t rl,ru;
241
242
fe4da5cc 243 //
244 // Get ALICE top node
fe4da5cc 245 //
1283eee5 246
73042f01 247 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 248
249 // inner sectors
250
cc80f89e 251 rl = fTPCParam->GetInnerRadiusLow();
252 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 253
254
fe4da5cc 255 for(i=0;i<nLo;i++) {
256 sprintf(name,"LS%2.2d",i);
1283eee5 257 name[4]='\0';
258 sprintf(title,"TPC low sector %3d",i);
259 title[24]='\0';
260
73042f01 261 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
262 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 263 tubs->SetNumberOfDivisions(1);
73042f01 264 nTop->cd();
265 nNode = new TNode(name,title,name,0,0,0,"");
266 nNode->SetLineColor(kColorTPC);
267 fNodes->Add(nNode);
fe4da5cc 268 }
1283eee5 269
fe4da5cc 270 // Outer sectors
1283eee5 271
cc80f89e 272 rl = fTPCParam->GetOuterRadiusLow();
273 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 274
fe4da5cc 275 for(i=0;i<nHi;i++) {
276 sprintf(name,"US%2.2d",i);
1283eee5 277 name[4]='\0';
fe4da5cc 278 sprintf(title,"TPC upper sector %d",i);
1283eee5 279 title[24]='\0';
73042f01 280 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
281 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 282 tubs->SetNumberOfDivisions(1);
73042f01 283 nTop->cd();
284 nNode = new TNode(name,title,name,0,0,0,"");
285 nNode->SetLineColor(kColorTPC);
286 fNodes->Add(nNode);
fe4da5cc 287 }
cc80f89e 288
73042f01 289}
1283eee5 290
fe4da5cc 291//_____________________________________________________________________________
292void AliTPC::CreateMaterials()
293{
8c555625 294 //-----------------------------------------------
37831078 295 // Create Materials for for TPC simulations
8c555625 296 //-----------------------------------------------
297
298 //-----------------------------------------------------------------
299 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
300 //-----------------------------------------------------------------
1283eee5 301
c1637e41 302 Int_t iSXFLD=gAlice->Field()->Integ();
73042f01 303 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 304
305 Float_t amat[5]; // atomic numbers
306 Float_t zmat[5]; // z
307 Float_t wmat[5]; // proportions
308
309 Float_t density;
37831078 310
1283eee5 311
1283eee5 312
c1637e41 313 //***************** Gases *************************
1283eee5 314
37831078 315
1283eee5 316 //--------------------------------------------------------------
c1637e41 317 // gases - air and CO2
1283eee5 318 //--------------------------------------------------------------
319
37831078 320 // CO2
1283eee5 321
322 amat[0]=12.011;
323 amat[1]=15.9994;
324
325 zmat[0]=6.;
326 zmat[1]=8.;
327
c1637e41 328 wmat[0]=0.2729;
329 wmat[1]=0.7271;
1283eee5 330
331 density=0.001977;
332
1283eee5 333
c1637e41 334 AliMixture(10,"CO2",amat,zmat,density,2,wmat);
335 //
336 // Air
337 //
338 amat[0]=15.9994;
339 amat[1]=14.007;
340 //
341 zmat[0]=8.;
342 zmat[1]=7.;
343 //
344 wmat[0]=0.233;
345 wmat[1]=0.767;
346 //
347 density=0.001205;
1283eee5 348
c1637e41 349 AliMixture(11,"Air",amat,zmat,density,2,wmat);
350
1283eee5 351 //----------------------------------------------------------------
c1637e41 352 // drift gases
1283eee5 353 //----------------------------------------------------------------
37831078 354
37831078 355
356 // Drift gases 1 - nonsensitive, 2 - sensitive
c1637e41 357 // Ne-CO2-N (85-10-5)
e4e763b9 358
359 amat[0]= 20.18;
360 amat[1]=12.011;
361 amat[2]=15.9994;
c1637e41 362 amat[3]=14.007;
e4e763b9 363
364 zmat[0]= 10.;
365 zmat[1]=6.;
366 zmat[2]=8.;
c1637e41 367 zmat[3]=7.;
e4e763b9 368
c1637e41 369 wmat[0]=0.7707;
370 wmat[1]=0.0539;
371 wmat[2]=0.1438;
372 wmat[3]=0.0316;
373
374 density=0.0010252;
e4e763b9 375
c1637e41 376 AliMixture(12,"Ne-CO2-N-1",amat,zmat,density,4,wmat);
377 AliMixture(13,"Ne-CO2-N-2",amat,zmat,density,4,wmat);
1283eee5 378
379 //----------------------------------------------------------------------
380 // solid materials
381 //----------------------------------------------------------------------
382
1283eee5 383
37831078 384 // Kevlar C14H22O2N2
1283eee5 385
37831078 386 amat[0] = 12.011;
387 amat[1] = 1.;
388 amat[2] = 15.999;
389 amat[3] = 14.006;
1283eee5 390
37831078 391 zmat[0] = 6.;
392 zmat[1] = 1.;
393 zmat[2] = 8.;
394 zmat[3] = 7.;
395
396 wmat[0] = 14.;
397 wmat[1] = 22.;
398 wmat[2] = 2.;
399 wmat[3] = 2.;
400
401 density = 1.45;
402
c1637e41 403 AliMixture(14,"Kevlar",amat,zmat,density,-4,wmat);
37831078 404
405 // NOMEX
1283eee5 406
37831078 407 amat[0] = 12.011;
408 amat[1] = 1.;
409 amat[2] = 15.999;
410 amat[3] = 14.006;
411
412 zmat[0] = 6.;
413 zmat[1] = 1.;
414 zmat[2] = 8.;
415 zmat[3] = 7.;
416
417 wmat[0] = 14.;
418 wmat[1] = 22.;
419 wmat[2] = 2.;
420 wmat[3] = 2.;
421
c1637e41 422 density = 0.029;
423
424 AliMixture(15,"NOMEX",amat,zmat,density,-4,wmat);
37831078 425
426 // Makrolon C16H18O3
427
428 amat[0] = 12.011;
429 amat[1] = 1.;
430 amat[2] = 15.999;
1283eee5 431
37831078 432 zmat[0] = 6.;
433 zmat[1] = 1.;
434 zmat[2] = 8.;
435
436 wmat[0] = 16.;
437 wmat[1] = 18.;
438 wmat[2] = 3.;
439
440 density = 1.2;
441
c1637e41 442 AliMixture(16,"Makrolon",amat,zmat,density,-3,wmat);
443
444 // Tedlar C2H3F
445
446 amat[0] = 12.011;
447 amat[1] = 1.;
448 amat[2] = 18.998;
449
450 zmat[0] = 6.;
451 zmat[1] = 1.;
452 zmat[2] = 9.;
453
454 wmat[0] = 2.;
455 wmat[1] = 3.;
456 wmat[2] = 1.;
457
458 density = 1.71;
459
460 AliMixture(17, "Tedlar",amat,zmat,density,-3,wmat);
37831078 461
1283eee5 462 // Mylar C5H4O2
463
464 amat[0]=12.011;
465 amat[1]=1.;
466 amat[2]=15.9994;
467
468 zmat[0]=6.;
469 zmat[1]=1.;
470 zmat[2]=8.;
471
472 wmat[0]=5.;
473 wmat[1]=4.;
474 wmat[2]=2.;
475
476 density = 1.39;
fe4da5cc 477
c1637e41 478 AliMixture(18, "Mylar",amat,zmat,density,-3,wmat);
479 // material for "prepregs"
480 // Epoxy - C14 H20 O3
481 // Quartz SiO2
482 // Carbon C
483 // prepreg1 60% C-fiber, 40% epoxy (vol)
484 amat[0]=12.011;
485 amat[1]=1.;
486 amat[2]=15.994;
1283eee5 487
c1637e41 488 zmat[0]=6.;
489 zmat[1]=1.;
490 zmat[2]=8.;
1283eee5 491
c1637e41 492 wmat[0]=0.923;
493 wmat[1]=0.023;
494 wmat[2]=0.054;
1283eee5 495
c1637e41 496 density=1.859;
1283eee5 497
c1637e41 498 AliMixture(19, "Prepreg1",amat,zmat,density,3,wmat);
1283eee5 499
c1637e41 500 //prepreg2 60% glass-fiber, 40% epoxy
1283eee5 501
c1637e41 502 amat[0]=12.01;
503 amat[1]=1.;
504 amat[2]=15.994;
505 amat[3]=28.086;
506
507 zmat[0]=6.;
508 zmat[1]=1.;
509 zmat[2]=8.;
510 zmat[3]=14.;
511
512 wmat[0]=0.194;
513 wmat[1]=0.023;
514 wmat[2]=0.443;
515 wmat[3]=0.340;
516
517 density=1.82;
518
519 AliMixture(20, "Prepreg2",amat,zmat,density,4,wmat);
520
521 //prepreg3 50% glass-fiber, 50% epoxy
522
523 amat[0]=12.01;
524 amat[1]=1.;
525 amat[2]=15.994;
526 amat[3]=28.086;
527
528 zmat[0]=6.;
529 zmat[1]=1.;
530 zmat[2]=8.;
531 zmat[3]=14.;
1283eee5 532
c1637e41 533 wmat[0]=0.225;
534 wmat[1]=0.03;
535 wmat[2]=0.443;
536 wmat[3]=0.3;
537
538 density=1.163;
539
540 AliMixture(21, "Prepreg3",amat,zmat,density,4,wmat);
541
542 // G10 60% SiO2 40% epoxy
543
544 amat[0]=12.01;
545 amat[1]=1.;
546 amat[2]=15.994;
547 amat[3]=28.086;
548
549 zmat[0]=6.;
550 zmat[1]=1.;
551 zmat[2]=8.;
552 zmat[3]=14.;
553
554 wmat[0]=0.194;
555 wmat[1]=0.023;
556 wmat[2]=0.443;
557 wmat[3]=0.340;
558
559 density=1.7;
560
561 AliMixture(22, "G10",amat,zmat,density,4,wmat);
562
37831078 563 // Al
1283eee5 564
37831078 565 amat[0] = 26.98;
566 zmat[0] = 13.;
1283eee5 567
37831078 568 density = 2.7;
1283eee5 569
c1637e41 570 AliMaterial(23,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 571
c1637e41 572 // Si (for electronics
1283eee5 573
37831078 574 amat[0] = 28.086;
9a3667bd 575 zmat[0] = 14.;
1283eee5 576
37831078 577 density = 2.33;
1283eee5 578
c1637e41 579 AliMaterial(24,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 580
37831078 581 // Cu
1283eee5 582
37831078 583 amat[0] = 63.546;
584 zmat[0] = 29.;
1283eee5 585
37831078 586 density = 8.96;
1283eee5 587
c1637e41 588 AliMaterial(25,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 589
c1637e41 590 // Epoxy - C14 H20 O3
591
37831078 592 amat[0]=12.011;
593 amat[1]=1.;
594 amat[2]=15.9994;
1283eee5 595
37831078 596 zmat[0]=6.;
597 zmat[1]=1.;
598 zmat[2]=8.;
1283eee5 599
c1637e41 600 wmat[0]=14.;
601 wmat[1]=20.;
602 wmat[2]=3.;
1283eee5 603
c1637e41 604 density=1.25;
1283eee5 605
c1637e41 606 AliMixture(26,"Epoxy",amat,zmat,density,-3,wmat);
1283eee5 607
c1637e41 608 // Plexiglas C5H8O2
1283eee5 609
5a28a08f 610 amat[0]=12.011;
611 amat[1]=1.;
612 amat[2]=15.9994;
613
614 zmat[0]=6.;
615 zmat[1]=1.;
616 zmat[2]=8.;
617
c1637e41 618 wmat[0]=5.;
619 wmat[1]=8.;
620 wmat[2]=2.;
5a28a08f 621
c1637e41 622 density=1.18;
5a28a08f 623
c1637e41 624 AliMixture(27,"Plexiglas",amat,zmat,density,-3,wmat);
37831078 625
ba1d05f9 626 // Carbon
627
628 amat[0]=12.011;
629 zmat[0]=6.;
630 density= 2.265;
631
c1637e41 632 AliMaterial(28,"C",amat[0],zmat[0],density,999.,999.);
ba1d05f9 633
c1637e41 634 // Fe (steel for the inner heat screen)
e4e763b9 635
c1637e41 636 amat[0]=55.845;
e4e763b9 637
c1637e41 638 zmat[0]=26.;
e4e763b9 639
c1637e41 640 density=7.87;
ba1d05f9 641
c1637e41 642 AliMaterial(29,"Fe",amat[0],zmat[0],density,999.,999.);
ba1d05f9 643
37831078 644 //----------------------------------------------------------
645 // tracking media for gases
646 //----------------------------------------------------------
647
c1637e41 648 AliMedium(0, "Air", 11, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
649 AliMedium(1, "Ne-CO2-N-1", 12, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
650 AliMedium(2, "Ne-CO2-N-2", 13, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
37831078 651 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
652
653 //-----------------------------------------------------------
654 // tracking media for solids
655 //-----------------------------------------------------------
656
c1637e41 657 AliMedium(4,"Al",23,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
658 AliMedium(5,"Kevlar",14,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
659 AliMedium(6,"Nomex",15,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
660 AliMedium(7,"Makrolon",16,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
661 AliMedium(8,"Mylar",18,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
662 AliMedium(9,"Tedlar",17,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
663 //
664 AliMedium(10,"Prepreg1",19,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
665 AliMedium(11,"Prepreg2",20,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
666 AliMedium(12,"Prepreg3",21,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
667 AliMedium(13,"Epoxy",26,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
668
669 AliMedium(14,"Cu",25,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
670 AliMedium(15,"Si",24,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
671 AliMedium(16,"G10",22,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
672 AliMedium(17,"Plexiglas",27,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
673 AliMedium(18,"Steel",29,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 674
fe4da5cc 675}
676
407ff276 677void AliTPC::GenerNoise(Int_t tablesize)
678{
679 //
680 //Generate table with noise
681 //
682 if (fTPCParam==0) {
683 // error message
684 fNoiseDepth=0;
685 return;
686 }
687 if (fNoiseTable) delete[] fNoiseTable;
688 fNoiseTable = new Float_t[tablesize];
689 fNoiseDepth = tablesize;
690 fCurrentNoise =0; //!index of the noise in the noise table
691
692 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
693 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
694}
695
696Float_t AliTPC::GetNoise()
697{
698 // get noise from table
699 // if ((fCurrentNoise%10)==0)
700 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
701 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
702 return fNoiseTable[fCurrentNoise++];
703 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
704}
705
706
9bdd974b 707Bool_t AliTPC::IsSectorActive(Int_t sec) const
792bb11c 708{
709 //
710 // check if the sector is active
711 if (!fActiveSectors) return kTRUE;
712 else return fActiveSectors[sec];
713}
714
715void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
716{
717 // activate interesting sectors
88cb7938 718 SetTreeAddress();//just for security
792bb11c 719 if (fActiveSectors) delete [] fActiveSectors;
720 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
721 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
722 for (Int_t i=0;i<n;i++)
723 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
724
725}
726
12d8d654 727void AliTPC::SetActiveSectors(Int_t flag)
792bb11c 728{
729 //
730 // activate sectors which were hitted by tracks
731 //loop over tracks
88cb7938 732 SetTreeAddress();//just for security
792bb11c 733 if (fHitType==0) return; // if Clones hit - not short volume ID information
734 if (fActiveSectors) delete [] fActiveSectors;
735 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
12d8d654 736 if (flag) {
737 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
738 return;
739 }
792bb11c 740 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
741 TBranch * branch=0;
88cb7938 742 if (TreeH() == 0x0)
743 {
8c2b3fd7 744 AliFatal("Can not find TreeH in folder");
88cb7938 745 return;
746 }
747 if (fHitType>1) branch = TreeH()->GetBranch("TPC2");
748 else branch = TreeH()->GetBranch("TPC");
749 Stat_t ntracks = TreeH()->GetEntries();
792bb11c 750 // loop over all hits
8c2b3fd7 751 AliDebug(1,Form("Got %d tracks",ntracks));
88cb7938 752
8c2b3fd7 753 for(Int_t track=0;track<ntracks;track++) {
792bb11c 754 ResetHits();
755 //
756 if (fTrackHits && fHitType&4) {
88cb7938 757 TBranch * br1 = TreeH()->GetBranch("fVolumes");
758 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 759 br1->GetEvent(track);
760 br2->GetEvent(track);
761 Int_t *volumes = fTrackHits->GetVolumes();
762 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
763 fActiveSectors[volumes[j]]=kTRUE;
764 }
765
766 //
be5ffbfe 767// if (fTrackHitsOld && fHitType&2) {
768// TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
769// br->GetEvent(track);
770// AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
771// for (UInt_t j=0;j<ar->GetSize();j++){
772// fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
773// }
774// }
792bb11c 775 }
792bb11c 776}
777
778
779
fe4da5cc 780
0421c3d1 781//_____________________________________________________________________________
782void AliTPC::Digits2Raw()
783{
784// convert digits of the current event to raw data
785
786 static const Int_t kThreshold = 0;
0421c3d1 787
788 fLoader->LoadDigits();
789 TTree* digits = fLoader->TreeD();
790 if (!digits) {
8c2b3fd7 791 AliError("No digits tree");
0421c3d1 792 return;
793 }
794
795 AliSimDigits digarr;
796 AliSimDigits* digrow = &digarr;
797 digits->GetBranch("Segment")->SetAddress(&digrow);
798
799 const char* fileName = "AliTPCDDL.dat";
800 AliTPCBuffer* buffer = new AliTPCBuffer(fileName);
801 //Verbose level
802 // 0: Silent
803 // 1: cout messages
804 // 2: txt files with digits
805 //BE CAREFUL, verbose level 2 MUST be used only for debugging and
806 //it is highly suggested to use this mode only for debugging digits files
807 //reasonably small, because otherwise the size of the txt files can reach
808 //quickly several MB wasting time and disk space.
809 buffer->SetVerbose(0);
810
811 Int_t nEntries = Int_t(digits->GetEntries());
812 Int_t previousSector = -1;
813 Int_t subSector = 0;
814 for (Int_t i = 0; i < nEntries; i++) {
815 digits->GetEntry(i);
816 Int_t sector, row;
817 fTPCParam->AdjustSectorRow(digarr.GetID(), sector, row);
818 if(previousSector != sector) {
819 subSector = 0;
820 previousSector = sector;
821 }
822
823 if (sector < 36) { //inner sector [0;35]
824 if (row != 30) {
825 //the whole row is written into the output file
826 buffer->WriteRowBinary(kThreshold, digrow, 0, 0, 0,
827 sector, subSector, row);
828 } else {
829 //only the pads in the range [37;48] are written into the output file
830 buffer->WriteRowBinary(kThreshold, digrow, 37, 48, 1,
831 sector, subSector, row);
832 subSector = 1;
833 //only the pads outside the range [37;48] are written into the output file
834 buffer->WriteRowBinary(kThreshold, digrow, 37, 48, 2,
835 sector, subSector, row);
836 }//end else
837
838 } else { //outer sector [36;71]
839 if (row == 54) subSector = 2;
840 if ((row != 27) && (row != 76)) {
841 buffer->WriteRowBinary(kThreshold, digrow, 0, 0, 0,
842 sector, subSector, row);
843 } else if (row == 27) {
8c2b3fd7 844 //only the pads outside the range [43;46] are written into the output file
845 buffer->WriteRowBinary(kThreshold, digrow, 43, 46, 2,
0421c3d1 846 sector, subSector, row);
8c2b3fd7 847 subSector = 1;
848 //only the pads in the range [43;46] are written into the output file
849 buffer->WriteRowBinary(kThreshold, digrow, 43, 46, 1,
0421c3d1 850 sector, subSector, row);
851 } else if (row == 76) {
8c2b3fd7 852 //only the pads outside the range [33;88] are written into the output file
853 buffer->WriteRowBinary(kThreshold, digrow, 33, 88, 2,
854 sector, subSector, row);
855 subSector = 3;
856 //only the pads in the range [33;88] are written into the output file
857 buffer->WriteRowBinary(kThreshold, digrow, 33, 88, 1,
0421c3d1 858 sector, subSector, row);
859 }
860 }//end else
861 }//end for
862
863 delete buffer;
864 fLoader->UnloadDigits();
865
866 AliTPCDDLRawData rawWriter;
867 rawWriter.SetVerbose(0);
868
869 rawWriter.RawData(fileName);
870 gSystem->Unlink(fileName);
871
0421c3d1 872}
873
874
bc807150 875//_____________________________________________________________________________
876Bool_t AliTPC::Raw2SDigits(AliRawReader* rawReader){
877 // Converts the TPC raw data into summable digits
878 // The method is used for merging simulated and
879 // real data events
880 if (fLoader->TreeS() == 0x0 ) {
881 fLoader->MakeTree("S");
882 }
883
884 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
885
886 //setup TPCDigitsArray
887 if(GetDigitsArray()) delete GetDigitsArray();
888
889 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
890 arr->SetClass("AliSimDigits");
891 arr->Setup(fTPCParam);
892 arr->MakeTree(fLoader->TreeS());
893
894 SetDigitsArray(arr);
895
896 // set zero suppression to "0"
897 fTPCParam->SetZeroSup(0);
898
899 // Loop over sectors
900 const Int_t maxTime = fTPCParam->GetMaxTBin();
901 const Int_t kNIS = fTPCParam->GetNInnerSector();
902 const Int_t kNOS = fTPCParam->GetNOuterSector();
903 const Int_t kNS = kNIS + kNOS;
904
905 Short_t** allBins = NULL; //array which contains the data for one sector
906
907 for(Int_t iSector = 0; iSector < kNS; iSector++) {
908
909 Int_t nRows = fTPCParam->GetNRow(iSector);
910 Int_t nDDLs = 0, indexDDL = 0;
911 if (iSector < kNIS) {
912 nDDLs = 2;
913 indexDDL = iSector * 2;
914 }
915 else {
916 nDDLs = 4;
917 indexDDL = (iSector-kNIS) * 4 + kNIS * 2;
918 }
919
920 // Loas the raw data for corresponding DDLs
921 rawReader->Reset();
922 AliTPCRawStream input(rawReader);
923 rawReader->Select("TPC",indexDDL,indexDDL+nDDLs-1);
924
925 // Alocate and init the array with the sector data
926 allBins = new Short_t*[nRows];
927 for (Int_t iRow = 0; iRow < nRows; iRow++) {
928 Int_t maxPad = fTPCParam->GetNPads(iSector,iRow);
929 Int_t maxBin = maxTime*maxPad;
930 allBins[iRow] = new Short_t[maxBin];
931 memset(allBins[iRow],0,sizeof(Short_t)*maxBin);
932 }
933
934 // Begin loop over altro data
935 while (input.Next()) {
936
937 if (input.GetSector() != iSector)
938 AliFatal(Form("Sector index mismatch ! Expected (%d), but got (%d) !",iSector,input.GetSector()));
939
940 Int_t iRow = input.GetRow();
941 if (iRow < 0 || iRow >= nRows)
942 AliFatal(Form("Pad-row index (%d) outside the range (%d -> %d) !",
943 iRow, 0, nRows -1));
944 Int_t iPad = input.GetPad();
945
946 Int_t maxPad = fTPCParam->GetNPads(iSector,iRow);
947
948 if (iPad < 0 || iPad >= maxPad)
949 AliFatal(Form("Pad index (%d) outside the range (%d -> %d) !",
950 iPad, 0, maxPad -1));
951
952 Int_t iTimeBin = input.GetTime();
953 if ( iTimeBin < 0 || iTimeBin >= maxTime)
954 AliFatal(Form("Timebin index (%d) outside the range (%d -> %d) !",
955 iTimeBin, 0, maxTime -1));
956
957 Int_t maxBin = maxTime*maxPad;
958
959 if (((iPad*maxTime+iTimeBin) >= maxBin) ||
960 ((iPad*maxTime+iTimeBin) < 0))
961 AliFatal(Form("Index outside the allowed range"
962 " Sector=%d Row=%d Pad=%d Timebin=%d"
963 " (Max.index=%d)",iSector,iRow,iPad,iTimeBin,maxBin));
964
965 allBins[iRow][iPad*maxTime+iTimeBin] = input.GetSignal();
966
967 } // End loop over altro data
968
969 // Now fill the digits array
970 if (fDigitsArray->GetTree()==0) {
971 AliFatal("Tree not set in fDigitsArray");
972 }
973
974 for (Int_t iRow = 0; iRow < nRows; iRow++) {
975 AliDigits * dig = fDigitsArray->CreateRow(iSector,iRow);
976
977 Int_t maxPad = fTPCParam->GetNPads(iSector,iRow);
978 for(Int_t iPad = 0; iPad < maxPad; iPad++) {
979 for(Int_t iTimeBin = 0; iTimeBin < maxTime; iTimeBin++) {
980 Short_t q = allBins[iRow][iPad*maxTime + iTimeBin];
981 if (q <= 0) continue;
982 q *= 16;
983 dig->SetDigitFast((Short_t)q,iTimeBin,iPad);
984 }
985 }
986 fDigitsArray->StoreRow(iSector,iRow);
987 Int_t ndig = dig->GetDigitSize();
988
989 AliDebug(10,
990 Form("*** Sector, row, compressed digits %d %d %d ***\n",
991 iSector,iRow,ndig));
992
993 fDigitsArray->ClearRow(iSector,iRow);
994
995 } // end of the sector digitization
996
997 for (Int_t iRow = 0; iRow < nRows; iRow++)
998 delete [] allBins[iRow];
999
1000 delete [] allBins;
1001
1002 }
1003
1004 fLoader->WriteSDigits("OVERWRITE");
1005
1006 if(GetDigitsArray()) delete GetDigitsArray();
1007 SetDigitsArray(0x0);
1008
1009 return kTRUE;
1010}
0a61bf9d 1011
85a5290f 1012//______________________________________________________________________
9bdd974b 1013AliDigitizer* AliTPC::CreateDigitizer(AliRunDigitizer* manager) const
85a5290f 1014{
1015 return new AliTPCDigitizer(manager);
1016}
0a61bf9d 1017//__
176aff27 1018void AliTPC::SDigits2Digits2(Int_t /*eventnumber*/)
0a61bf9d 1019{
1020 //create digits from summable digits
407ff276 1021 GenerNoise(500000); //create teble with noise
0a61bf9d 1022
1023 //conect tree with sSDigits
88cb7938 1024 TTree *t = fLoader->TreeS();
1025
8c2b3fd7 1026 if (t == 0x0) {
1027 fLoader->LoadSDigits("READ");
1028 t = fLoader->TreeS();
1029 if (t == 0x0) {
1030 AliError("Can not get input TreeS");
1031 return;
1032 }
1033 }
88cb7938 1034
1035 if (fLoader->TreeD() == 0x0) fLoader->MakeTree("D");
1036
0a61bf9d 1037 AliSimDigits digarr, *dummy=&digarr;
88cb7938 1038 TBranch* sdb = t->GetBranch("Segment");
8c2b3fd7 1039 if (sdb == 0x0) {
1040 AliError("Can not find branch with segments in TreeS.");
1041 return;
1042 }
88cb7938 1043
1044 sdb->SetAddress(&dummy);
1045
0a61bf9d 1046 Stat_t nentries = t->GetEntries();
1047
5f16d237 1048 // set zero suppression
1049
1050 fTPCParam->SetZeroSup(2);
1051
1052 // get zero suppression
1053
1054 Int_t zerosup = fTPCParam->GetZeroSup();
1055
1056 //make tree with digits
1057
0a61bf9d 1058 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1059 arr->SetClass("AliSimDigits");
1060 arr->Setup(fTPCParam);
88cb7938 1061 arr->MakeTree(fLoader->TreeD());
0a61bf9d 1062
88cb7938 1063 AliTPCParam * par = fTPCParam;
5f16d237 1064
0a61bf9d 1065 //Loop over segments of the TPC
5f16d237 1066
0a61bf9d 1067 for (Int_t n=0; n<nentries; n++) {
1068 t->GetEvent(n);
1069 Int_t sec, row;
1070 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
8c2b3fd7 1071 AliWarning(Form("Invalid segment ID ! %d",digarr.GetID()));
0a61bf9d 1072 continue;
1073 }
8c2b3fd7 1074 if (!IsSectorActive(sec)) continue;
1075
0a61bf9d 1076 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1077 Int_t nrows = digrow->GetNRows();
1078 Int_t ncols = digrow->GetNCols();
1079
1080 digrow->ExpandBuffer();
1081 digarr.ExpandBuffer();
1082 digrow->ExpandTrackBuffer();
1083 digarr.ExpandTrackBuffer();
1084
5f16d237 1085
407ff276 1086 Short_t * pamp0 = digarr.GetDigits();
1087 Int_t * ptracks0 = digarr.GetTracks();
1088 Short_t * pamp1 = digrow->GetDigits();
1089 Int_t * ptracks1 = digrow->GetTracks();
1090 Int_t nelems =nrows*ncols;
e93a083a 1091 Int_t saturation = fTPCParam->GetADCSat() - 1;
407ff276 1092 //use internal structure of the AliDigits - for speed reason
1093 //if you cahnge implementation
1094 //of the Alidigits - it must be rewriten -
1095 for (Int_t i= 0; i<nelems; i++){
407ff276 1096 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1097 if (q>zerosup){
1098 if (q>saturation) q=saturation;
1099 *pamp1=(Short_t)q;
8c2b3fd7 1100
407ff276 1101 ptracks1[0]=ptracks0[0];
1102 ptracks1[nelems]=ptracks0[nelems];
1103 ptracks1[2*nelems]=ptracks0[2*nelems];
1104 }
1105 pamp0++;
1106 pamp1++;
1107 ptracks0++;
1108 ptracks1++;
1109 }
5f16d237 1110
5f16d237 1111 arr->StoreRow(sec,row);
1112 arr->ClearRow(sec,row);
5f16d237 1113 }
0a61bf9d 1114
0a61bf9d 1115
5f16d237 1116 //write results
88cb7938 1117 fLoader->WriteDigits("OVERWRITE");
5f16d237 1118
88cb7938 1119 delete arr;
afc42102 1120}
1121//__________________________________________________________________
1122void AliTPC::SetDefaults(){
9bdd974b 1123 //
1124 // setting the defaults
1125 //
afc42102 1126
afc42102 1127 // Set response functions
1128
88cb7938 1129 //
024a7e64 1130 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::GetRunLoaderName());
88cb7938 1131 rl->CdGAFile();
2ab0c725 1132 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
7a09f434 1133 if(param){
8c2b3fd7 1134 AliInfo("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...");
7a09f434 1135 delete param;
1136 param = new AliTPCParamSR();
1137 }
1138 else {
1139 param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
1140 }
1141 if(!param){
8c2b3fd7 1142 AliFatal("No TPC parameters found");
7a09f434 1143 }
1144
1145
2ab0c725 1146 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
f03e3423 1147 AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
1148 AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
2ab0c725 1149 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1150 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1151 rf->SetOffset(3*param->GetZSigma());
1152 rf->Update();
afc42102 1153
1154 TDirectory *savedir=gDirectory;
2ab0c725 1155 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
8c2b3fd7 1156 if (!f->IsOpen())
1157 AliFatal("Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !");
2a336e15 1158
1159 TString s;
2ab0c725 1160 prfinner->Read("prf_07504_Gati_056068_d02");
2a336e15 1161 //PH Set different names
1162 s=prfinner->GetGRF()->GetName();
1163 s+="in";
1164 prfinner->GetGRF()->SetName(s.Data());
1165
f03e3423 1166 prfouter1->Read("prf_10006_Gati_047051_d03");
2a336e15 1167 s=prfouter1->GetGRF()->GetName();
1168 s+="out1";
1169 prfouter1->GetGRF()->SetName(s.Data());
1170
f03e3423 1171 prfouter2->Read("prf_15006_Gati_047051_d03");
2a336e15 1172 s=prfouter2->GetGRF()->GetName();
1173 s+="out2";
1174 prfouter2->GetGRF()->SetName(s.Data());
1175
2ab0c725 1176 f->Close();
afc42102 1177 savedir->cd();
1178
2ab0c725 1179 param->SetInnerPRF(prfinner);
f03e3423 1180 param->SetOuter1PRF(prfouter1);
1181 param->SetOuter2PRF(prfouter2);
2ab0c725 1182 param->SetTimeRF(rf);
1183
afc42102 1184 // set fTPCParam
1185
2ab0c725 1186 SetParam(param);
1187
afc42102 1188
1189 fDefaults = 1;
1190
1191}
1192//__________________________________________________________________
85a5290f 1193void AliTPC::Hits2Digits()
1194{
9bdd974b 1195 //
1196 // creates digits from hits
1197 //
506e60a6 1198 if (!fTPCParam->IsGeoRead()){
1199 //
1200 // read transformation matrices for gGeoManager
1201 //
1202 fTPCParam->ReadGeoMatrices();
1203 }
9bdd974b 1204
85a5290f 1205 fLoader->LoadHits("read");
1206 fLoader->LoadDigits("recreate");
1207 AliRunLoader* runLoader = fLoader->GetRunLoader();
1208
1209 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1210 runLoader->GetEvent(iEvent);
1211 SetActiveSectors();
1212 Hits2Digits(iEvent);
1213 }
1214
1215 fLoader->UnloadHits();
1216 fLoader->UnloadDigits();
1217}
1218//__________________________________________________________________
afc42102 1219void AliTPC::Hits2Digits(Int_t eventnumber)
1220{
1221 //----------------------------------------------------
1222 // Loop over all sectors for a single event
1223 //----------------------------------------------------
024a7e64 1224 AliRunLoader* rl = (AliRunLoader*)fLoader->GetEventFolder()->FindObject(AliRunLoader::GetRunLoaderName());
88cb7938 1225 rl->GetEvent(eventnumber);
8c2b3fd7 1226 if (fLoader->TreeH() == 0x0) {
1227 if(fLoader->LoadHits()) {
1228 AliError("Can not load hits.");
1229 }
1230 }
88cb7938 1231 SetTreeAddress();
1232
8c2b3fd7 1233 if (fLoader->TreeD() == 0x0 ) {
1234 fLoader->MakeTree("D");
1235 if (fLoader->TreeD() == 0x0 ) {
1236 AliError("Can not get TreeD");
1237 return;
1238 }
1239 }
afc42102 1240
1241 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1242 GenerNoise(500000); //create teble with noise
2ab0c725 1243
1244 //setup TPCDigitsArray
afc42102 1245
1246 if(GetDigitsArray()) delete GetDigitsArray();
8c2b3fd7 1247
2ab0c725 1248 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1249 arr->SetClass("AliSimDigits");
afc42102 1250 arr->Setup(fTPCParam);
88cb7938 1251
1252 arr->MakeTree(fLoader->TreeD());
2ab0c725 1253 SetDigitsArray(arr);
1254
afc42102 1255 fDigitsSwitch=0; // standard digits
2ab0c725 1256
8c2b3fd7 1257 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1258 if (IsSectorActive(isec)) {
1259 AliDebug(1,Form("Hits2Digits","Sector %d is active.",isec));
1260 Hits2DigitsSector(isec);
1261 }
1262 else {
1263 AliDebug(1,Form("Hits2Digits","Sector %d is NOT active.",isec));
1264 }
1265
88cb7938 1266 fLoader->WriteDigits("OVERWRITE");
f2a509af 1267
1268//this line prevents the crash in the similar one
1269//on the beginning of this method
1270//destructor attempts to reset the tree, which is deleted by the loader
1271//need to be redesign
8c2b3fd7 1272 if(GetDigitsArray()) delete GetDigitsArray();
1273 SetDigitsArray(0x0);
f2a509af 1274
8c555625 1275}
1276
f8cf550c 1277//__________________________________________________________________
0a61bf9d 1278void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1279{
1280
1281 //-----------------------------------------------------------
1282 // summable digits - 16 bit "ADC", no noise, no saturation
1283 //-----------------------------------------------------------
1284
8c2b3fd7 1285 //----------------------------------------------------
1286 // Loop over all sectors for a single event
1287 //----------------------------------------------------
88cb7938 1288
1289 AliRunLoader* rl = fLoader->GetRunLoader();
1290
1291 rl->GetEvent(eventnumber);
8c2b3fd7 1292 if (fLoader->TreeH() == 0x0) {
1293 if(fLoader->LoadHits()) {
1294 AliError("Can not load hits.");
1295 return;
1296 }
1297 }
88cb7938 1298 SetTreeAddress();
f8cf550c 1299
afc42102 1300
8c2b3fd7 1301 if (fLoader->TreeS() == 0x0 ) {
1302 fLoader->MakeTree("S");
1303 }
88cb7938 1304
afc42102 1305 if(fDefaults == 0) SetDefaults();
88cb7938 1306
407ff276 1307 GenerNoise(500000); //create table with noise
afc42102 1308 //setup TPCDigitsArray
1309
1310 if(GetDigitsArray()) delete GetDigitsArray();
1311
88cb7938 1312
afc42102 1313 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1314 arr->SetClass("AliSimDigits");
1315 arr->Setup(fTPCParam);
88cb7938 1316 arr->MakeTree(fLoader->TreeS());
1317
afc42102 1318 SetDigitsArray(arr);
1319
afc42102 1320 fDigitsSwitch=1; // summable digits
5f16d237 1321
1322 // set zero suppression to "0"
1323
1324 fTPCParam->SetZeroSup(0);
f8cf550c 1325
8c2b3fd7 1326 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++)
1327 if (IsSectorActive(isec)) {
1328 Hits2DigitsSector(isec);
1329 }
88cb7938 1330
8c2b3fd7 1331 fLoader->WriteSDigits("OVERWRITE");
88cb7938 1332
1333//this line prevents the crash in the similar one
1334//on the beginning of this method
1335//destructor attempts to reset the tree, which is deleted by the loader
1336//need to be redesign
8c2b3fd7 1337 if(GetDigitsArray()) delete GetDigitsArray();
1338 SetDigitsArray(0x0);
f8cf550c 1339}
0a61bf9d 1340//__________________________________________________________________
88cb7938 1341
0a61bf9d 1342void AliTPC::Hits2SDigits()
1343{
1344
1345 //-----------------------------------------------------------
1346 // summable digits - 16 bit "ADC", no noise, no saturation
1347 //-----------------------------------------------------------
1348
506e60a6 1349 if (!fTPCParam->IsGeoRead()){
1350 //
1351 // read transformation matrices for gGeoManager
1352 //
1353 fTPCParam->ReadGeoMatrices();
1354 }
1355
85a5290f 1356 fLoader->LoadHits("read");
1357 fLoader->LoadSDigits("recreate");
1358 AliRunLoader* runLoader = fLoader->GetRunLoader();
0a61bf9d 1359
85a5290f 1360 for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
1361 runLoader->GetEvent(iEvent);
1362 SetTreeAddress();
1363 SetActiveSectors();
1364 Hits2SDigits2(iEvent);
1365 }
0a61bf9d 1366
85a5290f 1367 fLoader->UnloadHits();
1368 fLoader->UnloadSDigits();
0a61bf9d 1369}
fe4da5cc 1370//_____________________________________________________________________________
88cb7938 1371
8c555625 1372void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1373{
8c555625 1374 //-------------------------------------------------------------------
fe4da5cc 1375 // TPC conversion from hits to digits.
8c555625 1376 //-------------------------------------------------------------------
1377
1378 //-----------------------------------------------------------------
1379 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1380 //-----------------------------------------------------------------
1381
fe4da5cc 1382 //-------------------------------------------------------
8c555625 1383 // Get the access to the track hits
fe4da5cc 1384 //-------------------------------------------------------
8c555625 1385
afc42102 1386 // check if the parameters are set - important if one calls this method
1387 // directly, not from the Hits2Digits
1388
1389 if(fDefaults == 0) SetDefaults();
cc80f89e 1390
88cb7938 1391 TTree *tH = TreeH(); // pointer to the hits tree
8c2b3fd7 1392 if (tH == 0x0) {
1393 AliFatal("Can not find TreeH in folder");
1394 return;
1395 }
88cb7938 1396
73042f01 1397 Stat_t ntracks = tH->GetEntries();
8c555625 1398
1399 if( ntracks > 0){
1400
1401 //-------------------------------------------
1402 // Only if there are any tracks...
1403 //-------------------------------------------
1404
8c555625 1405 TObjArray **row;
fe4da5cc 1406
8c2b3fd7 1407 Int_t nrows =fTPCParam->GetNRow(isec);
8c555625 1408
8c2b3fd7 1409 row= new TObjArray* [nrows+2]; // 2 extra rows for cross talk
fe4da5cc 1410
8c2b3fd7 1411 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1412
8c2b3fd7 1413 //--------------------------------------------------------
1414 // Digitize this sector, row by row
1415 // row[i] is the pointer to the TObjArray of TVectors,
1416 // each one containing electrons accepted on this
1417 // row, assigned into tracks
1418 //--------------------------------------------------------
8c555625 1419
8c2b3fd7 1420 Int_t i;
8c555625 1421
8c2b3fd7 1422 if (fDigitsArray->GetTree()==0) {
1423 AliFatal("Tree not set in fDigitsArray");
1424 }
8c555625 1425
8c2b3fd7 1426 for (i=0;i<nrows;i++){
1427
1428 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1429
8c2b3fd7 1430 DigitizeRow(i,isec,row);
8c555625 1431
8c2b3fd7 1432 fDigitsArray->StoreRow(isec,i);
8c555625 1433
8c2b3fd7 1434 Int_t ndig = dig->GetDigitSize();
88cb7938 1435
8c2b3fd7 1436 AliDebug(10,
1437 Form("*** Sector, row, compressed digits %d %d %d ***\n",
1438 isec,i,ndig));
792bb11c 1439
8c2b3fd7 1440 fDigitsArray->ClearRow(isec,i);
8c555625 1441
cc80f89e 1442
8c2b3fd7 1443 } // end of the sector digitization
8c555625 1444
8c2b3fd7 1445 for(i=0;i<nrows+2;i++){
1446 row[i]->Delete();
1447 delete row[i];
1448 }
cc80f89e 1449
8c2b3fd7 1450 delete [] row; // delete the array of pointers to TObjArray-s
8c555625 1451
1452 } // ntracks >0
8c555625 1453
cc80f89e 1454} // end of Hits2DigitsSector
8c555625 1455
8c555625 1456
8c555625 1457//_____________________________________________________________________________
cc80f89e 1458void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1459{
1460 //-----------------------------------------------------------
1461 // Single row digitization, coupling from the neighbouring
1462 // rows taken into account
1463 //-----------------------------------------------------------
1464
1465 //-----------------------------------------------------------------
1466 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1467 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1468 //-----------------------------------------------------------------
1469
8c555625 1470 Float_t zerosup = fTPCParam->GetZeroSup();
8c2b3fd7 1471
cc80f89e 1472 fCurrentIndex[1]= isec;
8c555625 1473
8c555625 1474
73042f01 1475 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1476 Int_t nofTbins = fTPCParam->GetMaxTBin();
1477 Int_t indexRange[4];
8c555625 1478 //
1479 // Integrated signal for this row
1480 // and a single track signal
cc80f89e 1481 //
de61d5d5 1482
e8d02863 1483 TMatrixF *m1 = new TMatrixF(0,nofPads,0,nofTbins); // integrated
1484 TMatrixF *m2 = new TMatrixF(0,nofPads,0,nofTbins); // single
8c555625 1485 //
e8d02863 1486 TMatrixF &total = *m1;
8c555625 1487
1488 // Array of pointers to the label-signal list
1489
73042f01 1490 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1491 Float_t **pList = new Float_t* [nofDigits];
8c555625 1492
1493 Int_t lp;
cc80f89e 1494 Int_t i1;
73042f01 1495 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1496 //
cc80f89e 1497 //calculate signal
1498 //
b584c7dd 1499 Int_t row1=irow;
1500 Int_t row2=irow+2;
cc80f89e 1501 for (Int_t row= row1;row<=row2;row++){
1502 Int_t nTracks= rows[row]->GetEntries();
1503 for (i1=0;i1<nTracks;i1++){
1504 fCurrentIndex[2]= row;
b584c7dd 1505 fCurrentIndex[3]=irow+1;
1506 if (row==irow+1){
cc80f89e 1507 m2->Zero(); // clear single track signal matrix
73042f01 1508 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1509 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1510 }
73042f01 1511 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1512 }
8c555625 1513 }
cc80f89e 1514
8c555625 1515 Int_t tracks[3];
8c555625 1516
cc80f89e 1517 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1518 Int_t gi=-1;
1519 Float_t fzerosup = zerosup+0.5;
1520 for(Int_t it=0;it<nofTbins;it++){
de61d5d5 1521 for(Int_t ip=0;ip<nofPads;ip++){
1522 gi++;
8c2b3fd7 1523 Float_t q=total(ip,it);
f8cf550c 1524 if(fDigitsSwitch == 0){
407ff276 1525 q+=GetNoise();
de61d5d5 1526 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1527 q = TMath::Nint(q);
e93a083a 1528 if(q >= fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat() - 1; // saturation
cc80f89e 1529
f8cf550c 1530 }
1531
1532 else {
8c2b3fd7 1533 if(q <= 0.) continue; // do not fill zeros
1534 if(q>2000.) q=2000.;
1535 q *= 16.;
1536 q = TMath::Nint(q);
f8cf550c 1537 }
8c555625 1538
1539 //
1540 // "real" signal or electronic noise (list = -1)?
1541 //
1542
1543 for(Int_t j1=0;j1<3;j1++){
407ff276 1544 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 1545 }
1546
cc80f89e 1547//Begin_Html
1548/*
1549 <A NAME="AliDigits"></A>
1550 using of AliDigits object
1551*/
1552//End_Html
1553 dig->SetDigitFast((Short_t)q,it,ip);
8c2b3fd7 1554 if (fDigitsArray->IsSimulated()) {
1555 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
1556 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
1557 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
1558 }
8c555625 1559
1560 } // end of loop over time buckets
1561 } // end of lop over pads
1562
1563 //
1564 // This row has been digitized, delete nonused stuff
1565 //
1566
73042f01 1567 for(lp=0;lp<nofDigits;lp++){
8c555625 1568 if(pList[lp]) delete [] pList[lp];
1569 }
1570
1571 delete [] pList;
1572
1573 delete m1;
1574 delete m2;
8c555625 1575
1576} // end of DigitizeRow
cc80f89e 1577
8c555625 1578//_____________________________________________________________________________
cc80f89e 1579
de61d5d5 1580Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
e8d02863 1581 TMatrixF *m1, TMatrixF *m2,Int_t *indexRange)
8c555625 1582{
1583
1584 //---------------------------------------------------------------
1585 // Calculates 2-D signal (pad,time) for a single track,
1586 // returns a pointer to the signal matrix and the track label
1587 // No digitization is performed at this level!!!
1588 //---------------------------------------------------------------
1589
1590 //-----------------------------------------------------------------
1591 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1592 // Modified: Marian Ivanov
8c555625 1593 //-----------------------------------------------------------------
1594
8c2b3fd7 1595 TVector *tv;
de61d5d5 1596
8c2b3fd7 1597 tv = (TVector*)p1->At(ntr); // pointer to a track
1598 TVector &v = *tv;
8c555625 1599
1600 Float_t label = v(0);
506e60a6 1601 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]-1))/2;
8c555625 1602
e61fd20d 1603 Int_t nElectrons = (tv->GetNrows()-1)/5;
73042f01 1604 indexRange[0]=9999; // min pad
1605 indexRange[1]=-1; // max pad
1606 indexRange[2]=9999; //min time
1607 indexRange[3]=-1; // max time
8c555625 1608
e8d02863 1609 TMatrixF &signal = *m1;
1610 TMatrixF &total = *m2;
8c555625 1611 //
1612 // Loop over all electrons
1613 //
8c555625 1614 for(Int_t nel=0; nel<nElectrons; nel++){
e61fd20d 1615 Int_t idx=nel*5;
cc80f89e 1616 Float_t aval = v(idx+4);
1617 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
e61fd20d 1618 Float_t xyz[4]={v(idx+1),v(idx+2),v(idx+3),v(idx+5)};
de61d5d5 1619 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
1620
1621 Int_t *index = fTPCParam->GetResBin(0);
1622 Float_t *weight = & (fTPCParam->GetResWeight(0));
1623
1624 if (n>0) for (Int_t i =0; i<n; i++){
8c2b3fd7 1625 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
1626
1627 if (pad>=0){
1628 Int_t time=index[2];
1629 Float_t qweight = *(weight)*eltoadcfac;
1630
1631 if (m1!=0) signal(pad,time)+=qweight;
1632 total(pad,time)+=qweight;
1633 if (indexRange[0]>pad) indexRange[0]=pad;
1634 if (indexRange[1]<pad) indexRange[1]=pad;
1635 if (indexRange[2]>time) indexRange[2]=time;
1636 if (indexRange[3]<time) indexRange[3]=time;
1637
1638 index+=3;
1639 weight++;
1640
1641 }
cc80f89e 1642 }
8c555625 1643 } // end of loop over electrons
cc80f89e 1644
8c555625 1645 return label; // returns track label when finished
1646}
1647
1648//_____________________________________________________________________________
e8d02863 1649void AliTPC::GetList(Float_t label,Int_t np,TMatrixF *m,
de61d5d5 1650 Int_t *indexRange, Float_t **pList)
8c555625 1651{
1652 //----------------------------------------------------------------------
1653 // Updates the list of tracks contributing to digits for a given row
1654 //----------------------------------------------------------------------
1655
1656 //-----------------------------------------------------------------
1657 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1658 //-----------------------------------------------------------------
1659
e8d02863 1660 TMatrixF &signal = *m;
8c555625 1661
1662 // lop over nonzero digits
1663
73042f01 1664 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
1665 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 1666
1667
8c2b3fd7 1668 // accept only the contribution larger than 500 electrons (1/2 s_noise)
921bf71a 1669
8c2b3fd7 1670 if(signal(ip,it)<0.5) continue;
921bf71a 1671
8c2b3fd7 1672 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 1673
8c2b3fd7 1674 if(!pList[globalIndex]){
8c555625 1675
8c2b3fd7 1676 //
1677 // Create new list (6 elements - 3 signals and 3 labels),
1678 //
8c555625 1679
8c2b3fd7 1680 pList[globalIndex] = new Float_t [6];
8c555625 1681
8c2b3fd7 1682 // set list to -1
1683
1684 *pList[globalIndex] = -1.;
1685 *(pList[globalIndex]+1) = -1.;
1686 *(pList[globalIndex]+2) = -1.;
1687 *(pList[globalIndex]+3) = -1.;
1688 *(pList[globalIndex]+4) = -1.;
1689 *(pList[globalIndex]+5) = -1.;
1690
1691 *pList[globalIndex] = label;
1692 *(pList[globalIndex]+3) = signal(ip,it);
1693 }
1694 else {
8c555625 1695
8c2b3fd7 1696 // check the signal magnitude
8c555625 1697
8c2b3fd7 1698 Float_t highest = *(pList[globalIndex]+3);
1699 Float_t middle = *(pList[globalIndex]+4);
1700 Float_t lowest = *(pList[globalIndex]+5);
1701
1702 //
1703 // compare the new signal with already existing list
1704 //
1705
1706 if(signal(ip,it)<lowest) continue; // neglect this track
8c555625 1707
8c2b3fd7 1708 //
8c555625 1709
8c2b3fd7 1710 if (signal(ip,it)>highest){
1711 *(pList[globalIndex]+5) = middle;
1712 *(pList[globalIndex]+4) = highest;
1713 *(pList[globalIndex]+3) = signal(ip,it);
1714
1715 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1716 *(pList[globalIndex]+1) = *pList[globalIndex];
1717 *pList[globalIndex] = label;
1718 }
1719 else if (signal(ip,it)>middle){
1720 *(pList[globalIndex]+5) = middle;
1721 *(pList[globalIndex]+4) = signal(ip,it);
1722
1723 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
1724 *(pList[globalIndex]+1) = label;
1725 }
1726 else{
1727 *(pList[globalIndex]+5) = signal(ip,it);
1728 *(pList[globalIndex]+2) = label;
1729 }
1730 }
1731
8c555625 1732 } // end of loop over pads
1733 } // end of loop over time bins
1734
8c555625 1735}//end of GetList
1736//___________________________________________________________________
1737void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
1738 Stat_t ntracks,TObjArray **row)
1739{
1740
1741 //-----------------------------------------------------------------
1742 // Prepares the sector digitization, creates the vectors of
1743 // tracks for each row of this sector. The track vector
1744 // contains the track label and the position of electrons.
1745 //-----------------------------------------------------------------
1746
1747 //-----------------------------------------------------------------
1748 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1749 //-----------------------------------------------------------------
1750
cc80f89e 1751 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 1752 Int_t i;
e61fd20d 1753 Float_t xyz[5];
8c555625 1754
1755 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 1756 //MI change
1757 TBranch * branch=0;
792bb11c 1758 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 1759 else branch = TH->GetBranch("TPC");
1760
8c555625 1761
1762 //----------------------------------------------
1763 // Create TObjArray-s, one for each row,
8c2b3fd7 1764 // each TObjArray will store the TVectors
1765 // of electrons, one TVectors per each track.
8c555625 1766 //----------------------------------------------
1767
b584c7dd 1768 Int_t *nofElectrons = new Int_t [nrows+2]; // electron counter for each row
8c2b3fd7 1769 TVector **tracks = new TVector* [nrows+2]; //pointers to the track vectors
de61d5d5 1770
b584c7dd 1771 for(i=0; i<nrows+2; i++){
8c555625 1772 row[i] = new TObjArray;
f74bb6f5 1773 nofElectrons[i]=0;
1774 tracks[i]=0;
8c555625 1775 }
8c555625 1776
37831078 1777
1778
8c555625 1779 //--------------------------------------------------------------------
1780 // Loop over tracks, the "track" contains the full history
1781 //--------------------------------------------------------------------
8c2b3fd7 1782
8c555625 1783 Int_t previousTrack,currentTrack;
1784 previousTrack = -1; // nothing to store so far!
1785
1786 for(Int_t track=0;track<ntracks;track++){
39c8eb58 1787 Bool_t isInSector=kTRUE;
8c555625 1788 ResetHits();
792bb11c 1789 isInSector = TrackInVolume(isec,track);
39c8eb58 1790 if (!isInSector) continue;
1791 //MI change
1792 branch->GetEntry(track); // get next track
8c2b3fd7 1793
39c8eb58 1794 //M.I. changes
8c555625 1795
39c8eb58 1796 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 1797
1798 //--------------------------------------------------------------
1799 // Loop over hits
1800 //--------------------------------------------------------------
1801
8c555625 1802
39c8eb58 1803 while(tpcHit){
8c555625 1804
1805 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 1806 if(sector != isec){
1807 tpcHit = (AliTPChit*) NextHit();
1808 continue;
1809 }
8c555625 1810
daf14717 1811 // Remove hits which arrive before the TPC opening gate signal
1812 if(((fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
1813 /fTPCParam->GetDriftV()+tpcHit->Time())<fTPCParam->GetGateDelay()) {
1814 tpcHit = (AliTPChit*) NextHit();
1815 continue;
1816 }
1817
8c2b3fd7 1818 currentTrack = tpcHit->Track(); // track number
39c8eb58 1819
8c2b3fd7 1820 if(currentTrack != previousTrack){
8c555625 1821
8c2b3fd7 1822 // store already filled fTrack
8c555625 1823
8c2b3fd7 1824 for(i=0;i<nrows+2;i++){
1825 if(previousTrack != -1){
1826 if(nofElectrons[i]>0){
1827 TVector &v = *tracks[i];
1828 v(0) = previousTrack;
e61fd20d 1829 tracks[i]->ResizeTo(5*nofElectrons[i]+1); // shrink if necessary
8c2b3fd7 1830 row[i]->Add(tracks[i]);
1831 }
1832 else {
1833 delete tracks[i]; // delete empty TVector
1834 tracks[i]=0;
1835 }
1836 }
1837
1838 nofElectrons[i]=0;
e61fd20d 1839 tracks[i] = new TVector(601); // TVectors for the next fTrack
8c2b3fd7 1840
1841 } // end of loop over rows
8c555625 1842
8c2b3fd7 1843 previousTrack=currentTrack; // update track label
1844 }
8c555625 1845
8c2b3fd7 1846 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 1847
8c2b3fd7 1848 //---------------------------------------------------
1849 // Calculate the electron attachment probability
1850 //---------------------------------------------------
8c555625 1851
cc80f89e 1852
8c2b3fd7 1853 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
1854 /fTPCParam->GetDriftV();
1855 // in microseconds!
1856 Float_t attProb = fTPCParam->GetAttCoef()*
1857 fTPCParam->GetOxyCont()*time; // fraction!
8c555625 1858
8c2b3fd7 1859 //-----------------------------------------------
1860 // Loop over electrons
1861 //-----------------------------------------------
1862 Int_t index[3];
1863 index[1]=isec;
1864 for(Int_t nel=0;nel<qI;nel++){
1865 // skip if electron lost due to the attachment
1866 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
1867 xyz[0]=tpcHit->X();
1868 xyz[1]=tpcHit->Y();
1869 xyz[2]=tpcHit->Z();
1870 //
1871 // protection for the nonphysical avalanche size (10**6 maximum)
1872 //
1873 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
1874 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
1875 index[0]=1;
1876
1877 TransportElectron(xyz,index);
1878 Int_t rowNumber;
1879 fTPCParam->GetPadRow(xyz,index);
e61fd20d 1880 // Electron track time (for pileup simulation)
1881 xyz[4] = tpcHit->Time()/fTPCParam->GetTSample();
8c2b3fd7 1882 // row 0 - cross talk from the innermost row
1883 // row fNRow+1 cross talk from the outermost row
1884 rowNumber = index[2]+1;
1885 //transform position to local digit coordinates
1886 //relative to nearest pad row
1887 if ((rowNumber<0)||rowNumber>fTPCParam->GetNRow(isec)+1) continue;
1888 Float_t x1,y1;
1889 if (isec <fTPCParam->GetNInnerSector()) {
1890 x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
1891 y1 = fTPCParam->GetYInner(rowNumber);
1892 }
1893 else{
1894 x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
1895 y1 = fTPCParam->GetYOuter(rowNumber);
1896 }
1897 // gain inefficiency at the wires edges - linear
1898 x1=TMath::Abs(x1);
1899 y1-=1.;
1900 if(x1>y1) xyz[3]*=TMath::Max(1.e-6,(y1-x1+1.));
1901
1902 nofElectrons[rowNumber]++;
1903 //----------------------------------
1904 // Expand vector if necessary
1905 //----------------------------------
1906 if(nofElectrons[rowNumber]>120){
1907 Int_t range = tracks[rowNumber]->GetNrows();
e61fd20d 1908 if((nofElectrons[rowNumber])>(range-1)/5){
8c2b3fd7 1909
e61fd20d 1910 tracks[rowNumber]->ResizeTo(range+500); // Add 100 electrons
fe4da5cc 1911 }
8c2b3fd7 1912 }
1913
1914 TVector &v = *tracks[rowNumber];
e61fd20d 1915 Int_t idx = 5*nofElectrons[rowNumber]-4;
8c2b3fd7 1916 Real_t * position = &(((TVector&)v)(idx)); //make code faster
e61fd20d 1917 memcpy(position,xyz,5*sizeof(Float_t));
8c2b3fd7 1918
1919 } // end of loop over electrons
39c8eb58 1920
8c2b3fd7 1921 tpcHit = (AliTPChit*)NextHit();
1922
1923 } // end of loop over hits
1924 } // end of loop over tracks
8c555625 1925
1926 //
1927 // store remaining track (the last one) if not empty
1928 //
8c2b3fd7 1929
1930 for(i=0;i<nrows+2;i++){
1931 if(nofElectrons[i]>0){
1932 TVector &v = *tracks[i];
1933 v(0) = previousTrack;
e61fd20d 1934 tracks[i]->ResizeTo(5*nofElectrons[i]+1); // shrink if necessary
8c2b3fd7 1935 row[i]->Add(tracks[i]);
1936 }
1937 else{
1938 delete tracks[i];
1939 tracks[i]=0;
1940 }
1941 }
1942
1943 delete [] tracks;
1944 delete [] nofElectrons;
8c555625 1945
cc80f89e 1946} // end of MakeSector
8c555625 1947
fe4da5cc 1948
1949//_____________________________________________________________________________
1950void AliTPC::Init()
1951{
1952 //
1953 // Initialise TPC detector after definition of geometry
1954 //
8c2b3fd7 1955 AliDebug(1,"*********************************************");
fe4da5cc 1956}
1957
1958//_____________________________________________________________________________
88cb7938 1959void AliTPC::MakeBranch(Option_t* option)
fe4da5cc 1960{
1961 //
1962 // Create Tree branches for the TPC.
1963 //
8c2b3fd7 1964 AliDebug(1,"");
fe4da5cc 1965 Int_t buffersize = 4000;
1966 char branchname[10];
1967 sprintf(branchname,"%s",GetName());
88cb7938 1968
1969 const char *h = strstr(option,"H");
8c2b3fd7 1970
88cb7938 1971 if ( h && (fHitType<=1) && (fHits == 0x0)) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
1972
1973 AliDetector::MakeBranch(option);
8c2b3fd7 1974
5cf7bbad 1975 const char *d = strstr(option,"D");
8c2b3fd7 1976
1977 if (fDigits && fLoader->TreeD() && d) {
1978 MakeBranchInTree(gAlice->TreeD(), branchname, &fDigits, buffersize, 0);
1979 }
fe4da5cc 1980
88cb7938 1981 if (fHitType>1) MakeBranch2(option,0); // MI change 14.09.2000
fe4da5cc 1982}
1983
1984//_____________________________________________________________________________
1985void AliTPC::ResetDigits()
1986{
1987 //
1988 // Reset number of digits and the digits array for this detector
fe4da5cc 1989 //
1990 fNdigits = 0;
cc80f89e 1991 if (fDigits) fDigits->Clear();
fe4da5cc 1992}
1993
fe4da5cc 1994
fe4da5cc 1995
1996//_____________________________________________________________________________
1997void AliTPC::SetSens(Int_t sens)
1998{
8c555625 1999
2000 //-------------------------------------------------------------
2001 // Activates/deactivates the sensitive strips at the center of
2002 // the pad row -- this is for the space-point resolution calculations
2003 //-------------------------------------------------------------
2004
2005 //-----------------------------------------------------------------
2006 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2007 //-----------------------------------------------------------------
2008
fe4da5cc 2009 fSens = sens;
2010}
2b06d5c3 2011
4b0fdcad 2012
73042f01 2013void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2014{
73042f01 2015 // choice of the TPC side
2016
4b0fdcad 2017 fSide = side;
2018
2019}
cc80f89e 2020//_____________________________________________________________________________
2021
2022void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2023{
2024 //
2025 // electron transport taking into account:
2026 // 1. diffusion,
2027 // 2.ExB at the wires
2028 // 3. nonisochronity
2029 //
2030 // xyz and index must be already transformed to system 1
2031 //
2032
2033 fTPCParam->Transform1to2(xyz,index);
2034
2035 //add diffusion
2036 Float_t driftl=xyz[2];
2037 if(driftl<0.01) driftl=0.01;
2038 driftl=TMath::Sqrt(driftl);
73042f01 2039 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2040 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2041 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2042 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2043 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2044
2045 // ExB
2046
2047 if (fTPCParam->GetMWPCReadout()==kTRUE){
b584c7dd 2048 Float_t dx = fTPCParam->Transform2to2NearestWire(xyz,index);
cc80f89e 2049 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2050 }
b584c7dd 2051 //add nonisochronity (not implemented yet)
1283eee5 2052}
fe4da5cc 2053
fe4da5cc 2054ClassImp(AliTPChit)
2055
2056//_____________________________________________________________________________
2057AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2058AliHit(shunt,track)
2059{
2060 //
2061 // Creates a TPC hit object
2062 //
2063 fSector = vol[0];
2064 fPadRow = vol[1];
2065 fX = hits[0];
2066 fY = hits[1];
2067 fZ = hits[2];
2068 fQ = hits[3];
e61fd20d 2069 fTime = hits[4];
fe4da5cc 2070}
2071
39c8eb58 2072//________________________________________________________________________
792bb11c 2073// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2074
176aff27 2075void AliTPC::MakeBranch2(Option_t *option,const char */*file*/)
39c8eb58 2076{
2077 //
2078 // Create a new branch in the current Root Tree
2079 // The branch of fHits is automatically split
2080 // MI change 14.09.2000
8c2b3fd7 2081 AliDebug(1,"");
792bb11c 2082 if (fHitType<2) return;
39c8eb58 2083 char branchname[10];
2084 sprintf(branchname,"%s2",GetName());
2085 //
2086 // Get the pointer to the header
5cf7bbad 2087 const char *cH = strstr(option,"H");
39c8eb58 2088 //
8c2b3fd7 2089 if (fTrackHits && TreeH() && cH && fHitType&4) {
2090 AliDebug(1,"Making branch for Type 4 Hits");
88cb7938 2091 TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,fBufferSize,99);
8c2b3fd7 2092 }
792bb11c 2093
be5ffbfe 2094// if (fTrackHitsOld && TreeH() && cH && fHitType&2) {
2095// AliDebug(1,"Making branch for Type 2 Hits");
2096// AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
2097// TreeH(),fBufferSize,99);
2098// TreeH()->GetListOfBranches()->Add(branch);
2099// }
39c8eb58 2100}
2101
2102void AliTPC::SetTreeAddress()
2103{
8c2b3fd7 2104 //Sets tree address for hits
2105 if (fHitType<=1) {
2106 if (fHits == 0x0 ) fHits = new TClonesArray("AliTPChit", 176);//skowron 20.06.03
2107 AliDetector::SetTreeAddress();
2108 }
792bb11c 2109 if (fHitType>1) SetTreeAddress2();
39c8eb58 2110}
2111
2112void AliTPC::SetTreeAddress2()
2113{
2114 //
2115 // Set branch address for the TrackHits Tree
2116 //
8c2b3fd7 2117 AliDebug(1,"");
88cb7938 2118
39c8eb58 2119 TBranch *branch;
2120 char branchname[20];
2121 sprintf(branchname,"%s2",GetName());
2122 //
2123 // Branch address for hit tree
88cb7938 2124 TTree *treeH = TreeH();
792bb11c 2125 if ((treeH)&&(fHitType&4)) {
39c8eb58 2126 branch = treeH->GetBranch(branchname);
8c2b3fd7 2127 if (branch) {
2128 branch->SetAddress(&fTrackHits);
2129 AliDebug(1,"fHitType&4 Setting");
2130 }
f2a509af 2131 else
8c2b3fd7 2132 AliDebug(1,"fHitType&4 Failed (can not find branch)");
f2a509af 2133
39c8eb58 2134 }
be5ffbfe 2135 // if ((treeH)&&(fHitType&2)) {
2136// branch = treeH->GetBranch(branchname);
2137// if (branch) {
2138// branch->SetAddress(&fTrackHitsOld);
2139// AliDebug(1,"fHitType&2 Setting");
2140// }
2141// else
2142// AliDebug(1,"fHitType&2 Failed (can not find branch)");
2143// }
b6e0d3fe 2144 //set address to TREETR
8c2b3fd7 2145
88cb7938 2146 TTree *treeTR = TreeTR();
b6e0d3fe 2147 if (treeTR && fTrackReferences) {
2148 branch = treeTR->GetBranch(GetName());
2149 if (branch) branch->SetAddress(&fTrackReferences);
2150 }
2151
39c8eb58 2152}
2153
2154void AliTPC::FinishPrimary()
2155{
792bb11c 2156 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
be5ffbfe 2157 // if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2158}
2159
2160
2161void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2162{
2163 //
2164 // add hit to the list
39c8eb58 2165 Int_t rtrack;
2166 if (fIshunt) {
5d12ce38 2167 int primary = gAlice->GetMCApp()->GetPrimary(track);
2168 gAlice->GetMCApp()->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2169 rtrack=primary;
2170 } else {
2171 rtrack=track;
5d12ce38 2172 gAlice->GetMCApp()->FlagTrack(track);
39c8eb58 2173 }
792bb11c 2174 if (fTrackHits && fHitType&4)
39c8eb58 2175 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
e61fd20d 2176 hits[1],hits[2],(Int_t)hits[3],hits[4]);
be5ffbfe 2177 // if (fTrackHitsOld &&fHitType&2 )
2178// fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
2179// hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2180
39c8eb58 2181}
2182
2183void AliTPC::ResetHits()
88cb7938 2184{
39c8eb58 2185 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2186 if (fHitType>1) ResetHits2();
39c8eb58 2187}
2188
2189void AliTPC::ResetHits2()
2190{
2191 //
2192 //reset hits
792bb11c 2193 if (fTrackHits && fHitType&4) fTrackHits->Clear();
be5ffbfe 2194 // if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
792bb11c 2195
39c8eb58 2196}
2197
2198AliHit* AliTPC::FirstHit(Int_t track)
2199{
792bb11c 2200 if (fHitType>1) return FirstHit2(track);
39c8eb58 2201 return AliDetector::FirstHit(track);
2202}
2203AliHit* AliTPC::NextHit()
2204{
9bdd974b 2205 //
2206 // gets next hit
2207 //
792bb11c 2208 if (fHitType>1) return NextHit2();
2209
39c8eb58 2210 return AliDetector::NextHit();
2211}
2212
2213AliHit* AliTPC::FirstHit2(Int_t track)
2214{
2215 //
2216 // Initialise the hit iterator
2217 // Return the address of the first hit for track
2218 // If track>=0 the track is read from disk
2219 // while if track<0 the first hit of the current
2220 // track is returned
2221 //
2222 if(track>=0) {
2223 gAlice->ResetHits();
88cb7938 2224 TreeH()->GetEvent(track);
39c8eb58 2225 }
2226 //
792bb11c 2227 if (fTrackHits && fHitType&4) {
39c8eb58 2228 fTrackHits->First();
2229 return fTrackHits->GetHit();
2230 }
be5ffbfe 2231 // if (fTrackHitsOld && fHitType&2) {
2232// fTrackHitsOld->First();
2233// return fTrackHitsOld->GetHit();
2234// }
792bb11c 2235
39c8eb58 2236 else return 0;
2237}
2238
2239AliHit* AliTPC::NextHit2()
2240{
2241 //
2242 //Return the next hit for the current track
2243
792bb11c 2244
be5ffbfe 2245// if (fTrackHitsOld && fHitType&2) {
2246// fTrackHitsOld->Next();
2247// return fTrackHitsOld->GetHit();
2248// }
39c8eb58 2249 if (fTrackHits) {
2250 fTrackHits->Next();
2251 return fTrackHits->GetHit();
2252 }
2253 else
2254 return 0;
2255}
2256
2257void AliTPC::LoadPoints(Int_t)
2258{
2259 //
2260 Int_t a = 0;
8c2b3fd7 2261
f2e8b846 2262 if(fHitType==1) AliDetector::LoadPoints(a);
2263 else LoadPoints2(a);
39c8eb58 2264}
2265
2266
2267void AliTPC::RemapTrackHitIDs(Int_t *map)
2268{
9bdd974b 2269 //
2270 // remapping
2271 //
39c8eb58 2272 if (!fTrackHits) return;
39c8eb58 2273
be5ffbfe 2274// if (fTrackHitsOld && fHitType&2){
2275// AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2276// for (UInt_t i=0;i<arr->GetSize();i++){
2277// AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2278// info->fTrackID = map[info->fTrackID];
2279// }
2280// }
2281// if (fTrackHitsOld && fHitType&4){
2282 if (fTrackHits && fHitType&4){
792bb11c 2283 TClonesArray * arr = fTrackHits->GetArray();;
2284 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2285 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2286 info->fTrackID = map[info->fTrackID];
2287 }
2288 }
39c8eb58 2289}
2290
792bb11c 2291Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2292{
2293 //return bool information - is track in given volume
2294 //load only part of the track information
2295 //return true if current track is in volume
2296 //
2297 // return kTRUE;
be5ffbfe 2298 // if (fTrackHitsOld && fHitType&2) {
2299// TBranch * br = TreeH()->GetBranch("fTrackHitsInfo");
2300// br->GetEvent(track);
2301// AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2302// for (UInt_t j=0;j<ar->GetSize();j++){
2303// if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2304// }
2305// }
792bb11c 2306
2307 if (fTrackHits && fHitType&4) {
88cb7938 2308 TBranch * br1 = TreeH()->GetBranch("fVolumes");
2309 TBranch * br2 = TreeH()->GetBranch("fNVolumes");
792bb11c 2310 br2->GetEvent(track);
2311 br1->GetEvent(track);
2312 Int_t *volumes = fTrackHits->GetVolumes();
2313 Int_t nvolumes = fTrackHits->GetNVolumes();
2314 if (!volumes && nvolumes>0) {
8c2b3fd7 2315 AliWarning(Form("Problematic track\t%d\t%d",track,nvolumes));
792bb11c 2316 return kFALSE;
2317 }
2318 for (Int_t j=0;j<nvolumes; j++)
2319 if (volumes[j]==id) return kTRUE;
2320 }
2321
2322 if (fHitType&1) {
88cb7938 2323 TBranch * br = TreeH()->GetBranch("fSector");
792bb11c 2324 br->GetEvent(track);
2325 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2326 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2327 }
2328 }
2329 return kFALSE;
2330
2331}
39c8eb58 2332
2333//_____________________________________________________________________________
2334void AliTPC::LoadPoints2(Int_t)
2335{
2336 //
2337 // Store x, y, z of all hits in memory
2338 //
be5ffbfe 2339 // if (fTrackHits == 0 && fTrackHitsOld==0) return;
2340 if (fTrackHits == 0 ) return;
39c8eb58 2341 //
792bb11c 2342 Int_t nhits =0;
2343 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
be5ffbfe 2344 // if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
792bb11c 2345
39c8eb58 2346 if (nhits == 0) return;
5d12ce38 2347 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2348 if (fPoints == 0) fPoints = new TObjArray(tracks);
2349 AliHit *ahit;
2350 //
2351 Int_t *ntrk=new Int_t[tracks];
2352 Int_t *limi=new Int_t[tracks];
2353 Float_t **coor=new Float_t*[tracks];
2354 for(Int_t i=0;i<tracks;i++) {
2355 ntrk[i]=0;
2356 coor[i]=0;
2357 limi[i]=0;
2358 }
2359 //
2360 AliPoints *points = 0;
2361 Float_t *fp=0;
2362 Int_t trk;
2363 Int_t chunk=nhits/4+1;
2364 //
2365 // Loop over all the hits and store their position
2366 //
2367 ahit = FirstHit2(-1);
39c8eb58 2368 while (ahit){
39c8eb58 2369 trk=ahit->GetTrack();
2370 if(ntrk[trk]==limi[trk]) {
2371 //
2372 // Initialise a new track
2373 fp=new Float_t[3*(limi[trk]+chunk)];
2374 if(coor[trk]) {
2375 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2376 delete [] coor[trk];
2377 }
2378 limi[trk]+=chunk;
2379 coor[trk] = fp;
2380 } else {
2381 fp = coor[trk];
2382 }
2383 fp[3*ntrk[trk] ] = ahit->X();
2384 fp[3*ntrk[trk]+1] = ahit->Y();
2385 fp[3*ntrk[trk]+2] = ahit->Z();
2386 ntrk[trk]++;
2387 ahit = NextHit2();
2388 }
792bb11c 2389
2390
2391
39c8eb58 2392 //
2393 for(trk=0; trk<tracks; ++trk) {
2394 if(ntrk[trk]) {
2395 points = new AliPoints();
2396 points->SetMarkerColor(GetMarkerColor());
2397 points->SetMarkerSize(GetMarkerSize());
2398 points->SetDetector(this);
2399 points->SetParticle(trk);
2400 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
2401 fPoints->AddAt(points,trk);
2402 delete [] coor[trk];
2403 coor[trk]=0;
2404 }
2405 }
2406 delete [] coor;
2407 delete [] ntrk;
2408 delete [] limi;
2409}
2410
2411
2412//_____________________________________________________________________________
2413void AliTPC::LoadPoints3(Int_t)
2414{
2415 //
2416 // Store x, y, z of all hits in memory
2417 // - only intersection point with pad row
2418 if (fTrackHits == 0) return;
2419 //
2420 Int_t nhits = fTrackHits->GetEntriesFast();
2421 if (nhits == 0) return;
5d12ce38 2422 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
39c8eb58 2423 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
2424 fPoints->Expand(2*tracks);
2425 AliHit *ahit;
2426 //
2427 Int_t *ntrk=new Int_t[tracks];
2428 Int_t *limi=new Int_t[tracks];
2429 Float_t **coor=new Float_t*[tracks];
2430 for(Int_t i=0;i<tracks;i++) {
2431 ntrk[i]=0;
2432 coor[i]=0;
2433 limi[i]=0;
2434 }
2435 //
2436 AliPoints *points = 0;
2437 Float_t *fp=0;
2438 Int_t trk;
2439 Int_t chunk=nhits/4+1;
2440 //
2441 // Loop over all the hits and store their position
2442 //
2443 ahit = FirstHit2(-1);
39c8eb58 2444
2445 Int_t lastrow = -1;
2446 while (ahit){
39c8eb58 2447 trk=ahit->GetTrack();
2448 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
2449 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
2450 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
2451 if (currentrow!=lastrow){
2452 lastrow = currentrow;
2453 //later calculate intersection point
2454 if(ntrk[trk]==limi[trk]) {
2455 //
2456 // Initialise a new track
2457 fp=new Float_t[3*(limi[trk]+chunk)];
2458 if(coor[trk]) {
2459 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2460 delete [] coor[trk];
2461 }
2462 limi[trk]+=chunk;
2463 coor[trk] = fp;
2464 } else {
2465 fp = coor[trk];
2466 }
2467 fp[3*ntrk[trk] ] = ahit->X();
2468 fp[3*ntrk[trk]+1] = ahit->Y();
2469 fp[3*ntrk[trk]+2] = ahit->Z();
2470 ntrk[trk]++;
2471 }
2472 ahit = NextHit2();
2473 }
2474
2475 //
2476 for(trk=0; trk<tracks; ++trk) {
2477 if(ntrk[trk]) {
2478 points = new AliPoints();
2479 points->SetMarkerColor(GetMarkerColor()+1);
2480 points->SetMarkerStyle(5);
2481 points->SetMarkerSize(0.2);
2482 points->SetDetector(this);
2483 points->SetParticle(trk);
39c8eb58 2484 points->SetPolyMarker(ntrk[trk],coor[trk],30);
2485 fPoints->AddAt(points,tracks+trk);
2486 delete [] coor[trk];
2487 coor[trk]=0;
2488 }
2489 }
2490 delete [] coor;
2491 delete [] ntrk;
2492 delete [] limi;
2493}
2494
2495
2496
88cb7938 2497AliLoader* AliTPC::MakeLoader(const char* topfoldername)
2498{
8c2b3fd7 2499 //Makes TPC loader
2500 fLoader = new AliTPCLoader(GetName(),topfoldername);
2501 return fLoader;
88cb7938 2502}
2503
42157e55 2504////////////////////////////////////////////////////////////////////////
2505AliTPCParam* AliTPC::LoadTPCParam(TFile *file) {
2506//
2507// load TPC paarmeters from a given file or create new if the object
2508// is not found there
88cb7938 2509// 12/05/2003 This method should be moved to the AliTPCLoader
2510// and one has to decide where to store the TPC parameters
2511// M.Kowalski
42157e55 2512 char paramName[50];
2513 sprintf(paramName,"75x40_100x60_150x60");
2514 AliTPCParam *paramTPC=(AliTPCParam*)file->Get(paramName);
2515 if (paramTPC) {
8c2b3fd7 2516 AliDebugClass(1,Form("TPC parameters %s found.",paramName));
42157e55 2517 } else {
8c2b3fd7 2518 AliWarningClass("TPC parameters not found. Create new (they may be incorrect)");
42157e55 2519 paramTPC = new AliTPCParamSR;
2520 }
2521 return paramTPC;
2522
2523// the older version of parameters can be accessed with this code.
2524// In some cases, we have old parameters saved in the file but
2525// digits were created with new parameters, it can be distinguish
2526// by the name of TPC TreeD. The code here is just for the case
2527// we would need to compare with old data, uncomment it if needed.
2528//
2529// char paramName[50];
2530// sprintf(paramName,"75x40_100x60");
2531// AliTPCParam *paramTPC=(AliTPCParam*)in->Get(paramName);
2532// if (paramTPC) {
2533// cout<<"TPC parameters "<<paramName<<" found."<<endl;
2534// } else {
2535// sprintf(paramName,"75x40_100x60_150x60");
2536// paramTPC=(AliTPCParam*)in->Get(paramName);
2537// if (paramTPC) {
2538// cout<<"TPC parameters "<<paramName<<" found."<<endl;
2539// } else {
2540// cerr<<"TPC parameters not found. Create new (they may be incorrect)."
2541// <<endl;
2542// paramTPC = new AliTPCParamSR;
2543// }
2544// }
2545// return paramTPC;
2546
2547}
2548
85a5290f 2549