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Introducing Riostream.h
[u/mrichter/AliRoot.git] / TPC / AliTPC.cxx
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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/*
17$Log$
b9d0a01d 18Revision 1.54.4.3 2002/10/11 08:34:48 hristov
19Updating VirtualMC to v3-09-02
20
21Revision 1.62 2002/09/23 09:22:56 hristov
22The address of the TrackReferences is set (M.Ivanov)
23
b6e0d3fe 24Revision 1.61 2002/09/10 07:06:42 kowal2
25Corrected for the memory leak. Thanks to J. Chudoba and M. Ivanov
26
df32adf9 27Revision 1.60 2002/06/12 14:56:56 kowal2
28Added track length to the reference hits
29
ac4fb434 30Revision 1.59 2002/06/05 15:37:31 kowal2
31Added cross-talk from the wires beyond the first and the last rows
32
b584c7dd 33Revision 1.58 2002/05/27 14:33:14 hristov
34The new class AliTrackReference used (M.Ivanov)
35
da33556f 36Revision 1.57 2002/05/07 17:23:11 kowal2
37Linear gain inefficiency instead of the step one at the wire edges.
38
e8f678d7 39Revision 1.56 2002/04/04 16:26:33 kowal2
40Digits (Sdigits) go to separate files now.
41
12d8d654 42Revision 1.55 2002/03/29 06:57:45 kowal2
43Restored backward compatibility to use the hits from Dec. 2000 production.
44
7a09f434 45Revision 1.54 2002/03/18 17:59:13 kowal2
46Chnges in the pad geometry - 3 pad lengths introduced.
47
f03e3423 48Revision 1.53 2002/02/25 11:02:56 kowal2
49Changes towards speeding up the code. Thanks to Marian Ivanov.
50
de61d5d5 51Revision 1.52 2002/02/18 09:26:09 kowal2
52Removed compiler warning
53
43510af3 54Revision 1.51 2002/01/21 17:13:21 kowal2
55New track hits using root containers. Setting active sectors added.
56
792bb11c 57Revision 1.50 2001/12/06 14:16:19 kowal2
58meaningfull printouts
59
0a9b058d 60Revision 1.49 2001/11/30 11:55:37 hristov
61Noise table created in Hits2SDigits (M.Ivanov)
62
180f4872 63Revision 1.48 2001/11/24 16:10:21 kowal2
64Faster algorithms.
65
407ff276 66Revision 1.47 2001/11/19 10:25:34 kowal2
67Nearest integer instead of integer when converting to ADC counts
68
68771f83 69Revision 1.46 2001/11/07 06:47:12 kowal2
70Removed printouts
71
9fe90376 72Revision 1.45 2001/11/03 13:33:48 kowal2
73Updated algorithms in Hits2SDigits, SDigits2Digits,
74Hits2ExactClusters.
75Added method Merge
76
5f16d237 77Revision 1.44 2001/08/30 09:28:48 hristov
78TTree names are explicitly set via SetName(name) and then Write() is called
79
6bc3458d 80Revision 1.43 2001/07/28 12:02:54 hristov
81Branch split level set to 99
82
8f90302f 83Revision 1.42 2001/07/28 11:38:52 hristov
84Loop variable declared once
85
43272665 86Revision 1.41 2001/07/28 10:53:50 hristov
87Digitisation done according to the general scheme (M.Ivanov)
88
0a61bf9d 89Revision 1.40 2001/07/27 13:03:14 hristov
90Default Branch split level set to 99
91
d0f40f23 92Revision 1.39 2001/07/26 09:09:34 kowal2
93Hits2Reco method added
94
a62d28a2 95Revision 1.38 2001/07/20 14:32:43 kowal2
96Processing of many events possible now
97
afc42102 98Revision 1.37 2001/06/12 07:17:18 kowal2
99Hits2SDigits method implemented (summable digits)
100
f8cf550c 101Revision 1.36 2001/05/16 14:57:25 alibrary
102New files for folders and Stack
103
9e1a0ddb 104Revision 1.35 2001/05/08 16:02:22 kowal2
105Updated material specifications
106
ba1d05f9 107Revision 1.34 2001/05/08 15:00:15 hristov
108Corrections for tracking in arbitrary magnenetic field. Changes towards a concept of global Alice track. Back propagation of reconstructed tracks (Yu.Belikov)
109
b9de75e1 110Revision 1.33 2001/04/03 12:40:43 kowal2
111Removed printouts
112
5a28a08f 113Revision 1.32 2001/03/12 17:47:36 hristov
114Changes needed on Sun with CC 5.0
115
5cf7bbad 116Revision 1.31 2001/03/12 08:21:50 kowal2
117Corrected C++ bug in the material definitions
118
9a3667bd 119Revision 1.30 2001/03/01 17:34:47 kowal2
120Correction due to the accuracy problem
121
710dacf5 122Revision 1.29 2001/02/28 16:34:40 kowal2
123Protection against nonphysical values of the avalanche size,
12410**6 is the maximum
125
1705494b 126Revision 1.28 2001/01/26 19:57:19 hristov
127Major upgrade of AliRoot code
128
2ab0c725 129Revision 1.27 2001/01/13 17:29:33 kowal2
130Sun compiler correction
131
f2e8b846 132Revision 1.26 2001/01/10 07:59:43 kowal2
133Corrections to load points from the noncompressed hits.
134
53048f2e 135Revision 1.25 2000/11/02 07:25:31 kowal2
136Changes due to the new hit structure.
137Memory leak removed.
138
39c8eb58 139Revision 1.24 2000/10/05 16:06:09 kowal2
140Forward declarations. Changes due to a new class AliComplexCluster.
141
2b06d5c3 142Revision 1.23 2000/10/02 21:28:18 fca
143Removal of useless dependecies via forward declarations
144
94de3818 145Revision 1.22 2000/07/10 20:57:39 hristov
146Update of TPC code and macros by M.Kowalski
147
73042f01 148Revision 1.19.2.4 2000/06/26 07:39:42 kowal2
149Changes to obey the coding rules
150
151Revision 1.19.2.3 2000/06/25 08:38:41 kowal2
152Splitted from AliTPCtracking
153
154Revision 1.19.2.2 2000/06/16 12:59:28 kowal2
155Changed parameter settings
156
157Revision 1.19.2.1 2000/06/09 07:15:07 kowal2
158
159Defaults loaded automatically (hard-wired)
160Optional parameters can be set via macro called in the constructor
161
162Revision 1.19 2000/04/18 19:00:59 fca
163Small bug fixes to TPC files
164
4d68a14a 165Revision 1.18 2000/04/17 09:37:33 kowal2
166removed obsolete AliTPCDigitsDisplay.C
167
cc80f89e 168Revision 1.17.2.2 2000/04/10 08:15:12 kowal2
169
170New, experimental data structure from M. Ivanov
171New tracking algorithm
172Different pad geometry for different sectors
173Digitization rewritten
174
175Revision 1.17.2.1 2000/04/10 07:56:53 kowal2
176Not used anymore - removed
177
178Revision 1.17 2000/01/19 17:17:30 fca
179Introducing a list of lists of hits -- more hits allowed for detector now
180
1cedd08a 181Revision 1.16 1999/11/05 09:29:23 fca
182Accept only signals > 0
183
921bf71a 184Revision 1.15 1999/10/08 06:26:53 fca
185Removed ClustersIndex - not used anymore
186
e674b993 187Revision 1.14 1999/09/29 09:24:33 fca
188Introduction of the Copyright and cvs Log
189
4c039060 190*/
191
fe4da5cc 192///////////////////////////////////////////////////////////////////////////////
193// //
194// Time Projection Chamber //
195// This class contains the basic functions for the Time Projection Chamber //
196// detector. Functions specific to one particular geometry are //
197// contained in the derived classes //
198// //
199//Begin_Html
200/*
1439f98e 201<img src="picts/AliTPCClass.gif">
fe4da5cc 202*/
203//End_Html
204// //
8c555625 205// //
fe4da5cc 206///////////////////////////////////////////////////////////////////////////////
207
73042f01 208//
209
fe4da5cc 210#include <TMath.h>
211#include <TRandom.h>
212#include <TVector.h>
8c555625 213#include <TMatrix.h>
fe4da5cc 214#include <TGeometry.h>
215#include <TNode.h>
216#include <TTUBS.h>
217#include <TObjectTable.h>
1578254f 218#include "TParticle.h"
fe4da5cc 219#include "AliTPC.h"
afc42102 220#include <TFile.h>
221#include <TROOT.h>
222#include <TSystem.h>
fe4da5cc 223#include "AliRun.h"
224#include <iostream.h>
2ab0c725 225#include <stdlib.h>
fe4da5cc 226#include <fstream.h>
227#include "AliMC.h"
94de3818 228#include "AliMagF.h"
da33556f 229#include "AliTrackReference.h"
fe4da5cc 230
cc80f89e 231
73042f01 232#include "AliTPCParamSR.h"
8c555625 233#include "AliTPCPRF2D.h"
234#include "AliTPCRF1D.h"
cc80f89e 235#include "AliDigits.h"
236#include "AliSimDigits.h"
39c8eb58 237#include "AliTPCTrackHits.h"
792bb11c 238#include "AliTPCTrackHitsV2.h"
39c8eb58 239#include "AliPoints.h"
240#include "AliArrayBranch.h"
241
cc80f89e 242
243#include "AliTPCDigitsArray.h"
2b06d5c3 244#include "AliComplexCluster.h"
cc80f89e 245#include "AliClusters.h"
246#include "AliTPCClustersRow.h"
247#include "AliTPCClustersArray.h"
8c555625 248
73042f01 249#include "AliTPCcluster.h"
250#include "AliTPCclusterer.h"
251#include "AliTPCtracker.h"
8c555625 252
73042f01 253#include <TInterpreter.h>
2b06d5c3 254#include <TTree.h>
1283eee5 255
39c8eb58 256
257
fe4da5cc 258ClassImp(AliTPC)
259
de61d5d5 260//_____________________________________________________________________________
261// helper class for fast matrix and vector manipulation - no range checking
262// origin - Marian Ivanov
263
264class AliTPCFastMatrix : public TMatrix {
265public :
266 AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb);
267 inline Float_t & UncheckedAt(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
268 inline Float_t UncheckedAtFast(Int_t rown, Int_t coln) const {return (fIndex[coln])[rown];} //fast acces
269};
270
271AliTPCFastMatrix::AliTPCFastMatrix(Int_t row_lwb, Int_t row_upb, Int_t col_lwb, Int_t col_upb):
272 TMatrix(row_lwb, row_upb,col_lwb,col_upb)
273 {
274 };
275//_____________________________________________________________________________
276class AliTPCFastVector : public TVector {
277public :
278 AliTPCFastVector(Int_t size);
b6e0d3fe 279 virtual ~AliTPCFastVector(){;}
de61d5d5 280 inline Float_t & UncheckedAt(Int_t index) const {return fElements[index];} //fast acces
b6e0d3fe 281
de61d5d5 282};
283
284AliTPCFastVector::AliTPCFastVector(Int_t size):TVector(size){
285};
286
fe4da5cc 287//_____________________________________________________________________________
288AliTPC::AliTPC()
289{
290 //
291 // Default constructor
292 //
293 fIshunt = 0;
fe4da5cc 294 fHits = 0;
295 fDigits = 0;
fe4da5cc 296 fNsectors = 0;
cc80f89e 297 fDigitsArray = 0;
298 fClustersArray = 0;
afc42102 299 fDefaults = 0;
792bb11c 300 fTrackHits = 0;
301 fTrackHitsOld = 0;
da33556f 302 fHitType = 2; //default CONTAINERS - based on ROOT structure
407ff276 303 fTPCParam = 0;
304 fNoiseTable = 0;
792bb11c 305 fActiveSectors =0;
407ff276 306
fe4da5cc 307}
308
309//_____________________________________________________________________________
310AliTPC::AliTPC(const char *name, const char *title)
311 : AliDetector(name,title)
312{
313 //
314 // Standard constructor
315 //
316
317 //
318 // Initialise arrays of hits and digits
319 fHits = new TClonesArray("AliTPChit", 176);
792bb11c 320 gAlice->AddHitList(fHits);
cc80f89e 321 fDigitsArray = 0;
322 fClustersArray= 0;
afc42102 323 fDefaults = 0;
fe4da5cc 324 //
792bb11c 325 fTrackHits = new AliTPCTrackHitsV2;
39c8eb58 326 fTrackHits->SetHitPrecision(0.002);
327 fTrackHits->SetStepPrecision(0.003);
792bb11c 328 fTrackHits->SetMaxDistance(100);
329
330 fTrackHitsOld = new AliTPCTrackHits; //MI - 13.09.2000
331 fTrackHitsOld->SetHitPrecision(0.002);
332 fTrackHitsOld->SetStepPrecision(0.003);
333 fTrackHitsOld->SetMaxDistance(100);
334
407ff276 335 fNoiseTable =0;
39c8eb58 336
da33556f 337 fHitType = 2;
792bb11c 338 fActiveSectors = 0;
39c8eb58 339 //
fe4da5cc 340 // Initialise counters
cc80f89e 341 fNsectors = 0;
cc80f89e 342
fe4da5cc 343 //
344 fIshunt = 0;
345 //
346 // Initialise color attributes
347 SetMarkerColor(kYellow);
73042f01 348
349 //
350 // Set TPC parameters
351 //
352
afc42102 353
354 if (!strcmp(title,"Default")) {
355 fTPCParam = new AliTPCParamSR;
73042f01 356 } else {
357 cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n";
358 fTPCParam=0;
359 }
360
fe4da5cc 361}
362
363//_____________________________________________________________________________
364AliTPC::~AliTPC()
365{
366 //
367 // TPC destructor
368 //
73042f01 369
fe4da5cc 370 fIshunt = 0;
371 delete fHits;
372 delete fDigits;
73042f01 373 delete fTPCParam;
39c8eb58 374 delete fTrackHits; //MI 15.09.2000
792bb11c 375 delete fTrackHitsOld; //MI 10.12.2001
407ff276 376 if (fNoiseTable) delete [] fNoiseTable;
377
fe4da5cc 378}
379
fe4da5cc 380//_____________________________________________________________________________
381void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
382{
383 //
384 // Add a hit to the list
385 //
39c8eb58 386 // TClonesArray &lhits = *fHits;
387 // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
388 if (fHitType&1){
389 TClonesArray &lhits = *fHits;
390 new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits);
391 }
792bb11c 392 if (fHitType>1)
39c8eb58 393 AddHit2(track,vol,hits);
fe4da5cc 394}
da33556f 395
ac4fb434 396void AliTPC::AddTrackReference(Int_t lab, TLorentzVector p, TLorentzVector x, Float_t length){
da33556f 397 //
398 // add a trackrefernce to the list
399 if (!fTrackReferences) {
400 cerr<<"Container trackrefernce not active\n";
401 return;
402 }
403 Int_t nref = fTrackReferences->GetEntriesFast();
404 TClonesArray &lref = *fTrackReferences;
405 AliTrackReference * ref = new(lref[nref]) AliTrackReference;
406 ref->SetMomentum(p[0],p[1],p[2]);
407 ref->SetPosition(x[0],x[1],x[2]);
408 ref->SetTrack(lab);
ac4fb434 409 ref->SetLength(length);
da33556f 410}
fe4da5cc 411
fe4da5cc 412//_____________________________________________________________________________
413void AliTPC::BuildGeometry()
414{
cc80f89e 415
fe4da5cc 416 //
417 // Build TPC ROOT TNode geometry for the event display
418 //
73042f01 419 TNode *nNode, *nTop;
fe4da5cc 420 TTUBS *tubs;
421 Int_t i;
422 const int kColorTPC=19;
1283eee5 423 char name[5], title[25];
fe4da5cc 424 const Double_t kDegrad=TMath::Pi()/180;
1283eee5 425 const Double_t kRaddeg=180./TMath::Pi();
426
1283eee5 427
73042f01 428 Float_t innerOpenAngle = fTPCParam->GetInnerAngle();
429 Float_t outerOpenAngle = fTPCParam->GetOuterAngle();
1283eee5 430
73042f01 431 Float_t innerAngleShift = fTPCParam->GetInnerAngleShift();
432 Float_t outerAngleShift = fTPCParam->GetOuterAngleShift();
1283eee5 433
434 Int_t nLo = fTPCParam->GetNInnerSector()/2;
435 Int_t nHi = fTPCParam->GetNOuterSector()/2;
436
73042f01 437 const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg);
438 const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg);
439 const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg);
440 const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg);
1283eee5 441
442
73042f01 443 const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad);
444 const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad);
1283eee5 445
446 Double_t rl,ru;
447
448
fe4da5cc 449 //
450 // Get ALICE top node
fe4da5cc 451 //
1283eee5 452
73042f01 453 nTop=gAlice->GetGeometry()->GetNode("alice");
1283eee5 454
455 // inner sectors
456
cc80f89e 457 rl = fTPCParam->GetInnerRadiusLow();
458 ru = fTPCParam->GetInnerRadiusUp();
1283eee5 459
460
fe4da5cc 461 for(i=0;i<nLo;i++) {
462 sprintf(name,"LS%2.2d",i);
1283eee5 463 name[4]='\0';
464 sprintf(title,"TPC low sector %3d",i);
465 title[24]='\0';
466
73042f01 467 tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250.,
468 kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh);
fe4da5cc 469 tubs->SetNumberOfDivisions(1);
73042f01 470 nTop->cd();
471 nNode = new TNode(name,title,name,0,0,0,"");
472 nNode->SetLineColor(kColorTPC);
473 fNodes->Add(nNode);
fe4da5cc 474 }
1283eee5 475
fe4da5cc 476 // Outer sectors
1283eee5 477
cc80f89e 478 rl = fTPCParam->GetOuterRadiusLow();
479 ru = fTPCParam->GetOuterRadiusUp();
1283eee5 480
fe4da5cc 481 for(i=0;i<nHi;i++) {
482 sprintf(name,"US%2.2d",i);
1283eee5 483 name[4]='\0';
fe4da5cc 484 sprintf(title,"TPC upper sector %d",i);
1283eee5 485 title[24]='\0';
73042f01 486 tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250,
487 khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh);
fe4da5cc 488 tubs->SetNumberOfDivisions(1);
73042f01 489 nTop->cd();
490 nNode = new TNode(name,title,name,0,0,0,"");
491 nNode->SetLineColor(kColorTPC);
492 fNodes->Add(nNode);
fe4da5cc 493 }
cc80f89e 494
73042f01 495}
1283eee5 496
fe4da5cc 497//_____________________________________________________________________________
498Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t )
499{
500 //
501 // Calculate distance from TPC to mouse on the display
502 // Dummy procedure
503 //
504 return 9999;
505}
506
73042f01 507void AliTPC::Clusters2Tracks(TFile *of) {
3c0f9266 508 //-----------------------------------------------------------------
509 // This is a track finder.
3c0f9266 510 //-----------------------------------------------------------------
b9de75e1 511 AliTPCtracker tracker(fTPCParam);
512 tracker.Clusters2Tracks(gFile,of);
fe4da5cc 513}
514
515//_____________________________________________________________________________
516void AliTPC::CreateMaterials()
517{
8c555625 518 //-----------------------------------------------
37831078 519 // Create Materials for for TPC simulations
8c555625 520 //-----------------------------------------------
521
522 //-----------------------------------------------------------------
523 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
524 //-----------------------------------------------------------------
1283eee5 525
73042f01 526 Int_t iSXFLD=gAlice->Field()->Integ();
527 Float_t sXMGMX=gAlice->Field()->Max();
1283eee5 528
529 Float_t amat[5]; // atomic numbers
530 Float_t zmat[5]; // z
531 Float_t wmat[5]; // proportions
532
533 Float_t density;
37831078 534 Float_t apure[2];
1283eee5 535
1283eee5 536
37831078 537 //***************** Gases *************************
538
539 //-------------------------------------------------
1283eee5 540 // pure gases
37831078 541 //-------------------------------------------------
1283eee5 542
37831078 543 // Neon
1283eee5 544
545
37831078 546 amat[0]= 20.18;
547 zmat[0]= 10.;
1283eee5 548 density = 0.0009;
37831078 549
550 apure[0]=amat[0];
1283eee5 551
37831078 552 AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.);
1283eee5 553
37831078 554 // Argon
1283eee5 555
37831078 556 amat[0]= 39.948;
557 zmat[0]= 18.;
558 density = 0.001782;
1283eee5 559
37831078 560 apure[1]=amat[0];
1283eee5 561
37831078 562 AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.);
563
1283eee5 564
565 //--------------------------------------------------------------
566 // gases - compounds
567 //--------------------------------------------------------------
568
569 Float_t amol[3];
570
37831078 571 // CO2
1283eee5 572
573 amat[0]=12.011;
574 amat[1]=15.9994;
575
576 zmat[0]=6.;
577 zmat[1]=8.;
578
579 wmat[0]=1.;
580 wmat[1]=2.;
581
582 density=0.001977;
583
584 amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1];
585
586 AliMixture(10,"CO2",amat,zmat,density,-2,wmat);
37831078 587
1283eee5 588 // CF4
589
590 amat[0]=12.011;
591 amat[1]=18.998;
592
593 zmat[0]=6.;
594 zmat[1]=9.;
595
596 wmat[0]=1.;
597 wmat[1]=4.;
598
599 density=0.003034;
600
601 amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1];
602
603 AliMixture(11,"CF4",amat,zmat,density,-2,wmat);
604
37831078 605
1283eee5 606 // CH4
607
608 amat[0]=12.011;
609 amat[1]=1.;
610
611 zmat[0]=6.;
612 zmat[1]=1.;
613
614 wmat[0]=1.;
615 wmat[1]=4.;
616
617 density=0.000717;
618
619 amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1];
620
621 AliMixture(12,"CH4",amat,zmat,density,-2,wmat);
622
623 //----------------------------------------------------------------
624 // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds
625 //----------------------------------------------------------------
37831078 626
627 char namate[21];
1283eee5 628 density = 0.;
629 Float_t am=0;
630 Int_t nc;
37831078 631 Float_t rho,absl,X0,buf[1];
1283eee5 632 Int_t nbuf;
37831078 633 Float_t a,z;
1283eee5 634
635 for(nc = 0;nc<fNoComp;nc++)
636 {
637
638 // retrive material constants
639
37831078 640 gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf);
1283eee5 641
642 amat[nc] = a;
643 zmat[nc] = z;
644
645 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
646
37831078 647 am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]);
1283eee5 648 density += fMixtProp[nc]*rho; // density of the mixture
649
650 }
651
652 // mixture proportions by weight!
653
654 for(nc = 0;nc<fNoComp;nc++)
655 {
656
657 Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10;
658
37831078 659 wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ?
660 apure[nnc] : amol[nnc])/am;
661
662 }
663
664 // Drift gases 1 - nonsensitive, 2 - sensitive
1283eee5 665
1283eee5 666 AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat);
667 AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat);
1283eee5 668
1283eee5 669
37831078 670 // Air
671
672 amat[0] = 14.61;
673 zmat[0] = 7.3;
674 density = 0.001205;
1283eee5 675
37831078 676 AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.);
1283eee5 677
1283eee5 678
679 //----------------------------------------------------------------------
680 // solid materials
681 //----------------------------------------------------------------------
682
1283eee5 683
37831078 684 // Kevlar C14H22O2N2
1283eee5 685
37831078 686 amat[0] = 12.011;
687 amat[1] = 1.;
688 amat[2] = 15.999;
689 amat[3] = 14.006;
1283eee5 690
37831078 691 zmat[0] = 6.;
692 zmat[1] = 1.;
693 zmat[2] = 8.;
694 zmat[3] = 7.;
695
696 wmat[0] = 14.;
697 wmat[1] = 22.;
698 wmat[2] = 2.;
699 wmat[3] = 2.;
700
701 density = 1.45;
702
703 AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat);
704
705 // NOMEX
1283eee5 706
37831078 707 amat[0] = 12.011;
708 amat[1] = 1.;
709 amat[2] = 15.999;
710 amat[3] = 14.006;
711
712 zmat[0] = 6.;
713 zmat[1] = 1.;
714 zmat[2] = 8.;
715 zmat[3] = 7.;
716
717 wmat[0] = 14.;
718 wmat[1] = 22.;
719 wmat[2] = 2.;
720 wmat[3] = 2.;
721
722 density = 0.03;
1283eee5 723
fe4da5cc 724
37831078 725 AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat);
726
727 // Makrolon C16H18O3
728
729 amat[0] = 12.011;
730 amat[1] = 1.;
731 amat[2] = 15.999;
1283eee5 732
37831078 733 zmat[0] = 6.;
734 zmat[1] = 1.;
735 zmat[2] = 8.;
736
737 wmat[0] = 16.;
738 wmat[1] = 18.;
739 wmat[2] = 3.;
740
741 density = 1.2;
742
743 AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat);
744
1283eee5 745 // Mylar C5H4O2
746
747 amat[0]=12.011;
748 amat[1]=1.;
749 amat[2]=15.9994;
750
751 zmat[0]=6.;
752 zmat[1]=1.;
753 zmat[2]=8.;
754
755 wmat[0]=5.;
756 wmat[1]=4.;
757 wmat[2]=2.;
758
759 density = 1.39;
fe4da5cc 760
37831078 761 AliMixture(37, "Mylar",amat,zmat,density,-3,wmat);
1283eee5 762
ba1d05f9 763 // SiO2 - used later for the glass fiber
1283eee5 764
37831078 765 amat[0]=28.086;
766 amat[1]=15.9994;
1283eee5 767
37831078 768 zmat[0]=14.;
769 zmat[1]=8.;
1283eee5 770
37831078 771 wmat[0]=1.;
772 wmat[1]=2.;
1283eee5 773
1283eee5 774
ba1d05f9 775 AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz (rho=2.2)
1283eee5 776
37831078 777 // Al
1283eee5 778
37831078 779 amat[0] = 26.98;
780 zmat[0] = 13.;
1283eee5 781
37831078 782 density = 2.7;
1283eee5 783
37831078 784 AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.);
1283eee5 785
37831078 786 // Si
1283eee5 787
37831078 788 amat[0] = 28.086;
9a3667bd 789 zmat[0] = 14.;
1283eee5 790
37831078 791 density = 2.33;
1283eee5 792
37831078 793 AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.);
1283eee5 794
37831078 795 // Cu
1283eee5 796
37831078 797 amat[0] = 63.546;
798 zmat[0] = 29.;
1283eee5 799
37831078 800 density = 8.96;
1283eee5 801
37831078 802 AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.);
1283eee5 803
37831078 804 // Tedlar C2H3F
1283eee5 805
37831078 806 amat[0] = 12.011;
807 amat[1] = 1.;
808 amat[2] = 18.998;
1283eee5 809
37831078 810 zmat[0] = 6.;
811 zmat[1] = 1.;
812 zmat[2] = 9.;
1283eee5 813
37831078 814 wmat[0] = 2.;
815 wmat[1] = 3.;
816 wmat[2] = 1.;
1283eee5 817
37831078 818 density = 1.71;
1283eee5 819
37831078 820 AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat);
1283eee5 821
1283eee5 822
37831078 823 // Plexiglas C5H8O2
1283eee5 824
37831078 825 amat[0]=12.011;
826 amat[1]=1.;
827 amat[2]=15.9994;
1283eee5 828
37831078 829 zmat[0]=6.;
830 zmat[1]=1.;
831 zmat[2]=8.;
1283eee5 832
37831078 833 wmat[0]=5.;
834 wmat[1]=8.;
835 wmat[2]=2.;
1283eee5 836
37831078 837 density=1.18;
1283eee5 838
37831078 839 AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat);
1283eee5 840
ba1d05f9 841 // Epoxy - C14 H20 O3
1283eee5 842
5a28a08f 843
844 amat[0]=12.011;
845 amat[1]=1.;
846 amat[2]=15.9994;
847
848 zmat[0]=6.;
849 zmat[1]=1.;
850 zmat[2]=8.;
851
ba1d05f9 852 wmat[0]=14.;
853 wmat[1]=20.;
5a28a08f 854 wmat[2]=3.;
855
ba1d05f9 856 density=1.25;
5a28a08f 857
858 AliMixture(45,"Epoxy",amat,zmat,density,-3,wmat);
37831078 859
ba1d05f9 860 // Carbon
861
862 amat[0]=12.011;
863 zmat[0]=6.;
864 density= 2.265;
865
866 AliMaterial(46,"C",amat[0],zmat[0],density,999.,999.);
867
868 // get epoxy
869
870 gMC->Gfmate((*fIdmate)[45],namate,amat[1],zmat[1],rho,X0,absl,buf,nbuf);
871
872 // Carbon fiber
873
874 wmat[0]=0.644; // by weight!
875 wmat[1]=0.356;
876
877 density=0.5*(1.25+2.265);
878
879 AliMixture(47,"Cfiber",amat,zmat,density,2,wmat);
880
881 // get SiO2
882
883 gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf);
884
885 wmat[0]=0.725; // by weight!
886 wmat[1]=0.275;
887
888 density=1.7;
889
890 AliMixture(39,"G10",amat,zmat,density,2,wmat);
891
892
893
894
37831078 895 //----------------------------------------------------------
896 // tracking media for gases
897 //----------------------------------------------------------
898
899 AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1);
900 AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
901 AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001);
902 AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001);
903
904 //-----------------------------------------------------------
905 // tracking media for solids
906 //-----------------------------------------------------------
907
908 AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
909 AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
910 AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
911 AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
912 AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
913 AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
914 AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
915 AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
916 AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
917 AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
5a28a08f 918 AliMedium(14,"Epoxy",45,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001);
ba1d05f9 919 AliMedium(15,"Cfiber",47,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001);
1283eee5 920
fe4da5cc 921}
922
407ff276 923void AliTPC::GenerNoise(Int_t tablesize)
924{
925 //
926 //Generate table with noise
927 //
928 if (fTPCParam==0) {
929 // error message
930 fNoiseDepth=0;
931 return;
932 }
933 if (fNoiseTable) delete[] fNoiseTable;
934 fNoiseTable = new Float_t[tablesize];
935 fNoiseDepth = tablesize;
936 fCurrentNoise =0; //!index of the noise in the noise table
937
938 Float_t norm = fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac();
939 for (Int_t i=0;i<tablesize;i++) fNoiseTable[i]= gRandom->Gaus(0,norm);
940}
941
942Float_t AliTPC::GetNoise()
943{
944 // get noise from table
945 // if ((fCurrentNoise%10)==0)
946 // fCurrentNoise= gRandom->Rndm()*fNoiseDepth;
947 if (fCurrentNoise>=fNoiseDepth) fCurrentNoise=0;
948 return fNoiseTable[fCurrentNoise++];
949 //gRandom->Gaus(0, fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac());
950}
951
952
792bb11c 953Bool_t AliTPC::IsSectorActive(Int_t sec)
954{
955 //
956 // check if the sector is active
957 if (!fActiveSectors) return kTRUE;
958 else return fActiveSectors[sec];
959}
960
961void AliTPC::SetActiveSectors(Int_t * sectors, Int_t n)
962{
963 // activate interesting sectors
964 if (fActiveSectors) delete [] fActiveSectors;
965 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
966 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
967 for (Int_t i=0;i<n;i++)
968 if ((sectors[i]>=0) && sectors[i]<fTPCParam->GetNSector()) fActiveSectors[sectors[i]]=kTRUE;
969
970}
971
12d8d654 972void AliTPC::SetActiveSectors(Int_t flag)
792bb11c 973{
974 //
975 // activate sectors which were hitted by tracks
976 //loop over tracks
977 if (fHitType==0) return; // if Clones hit - not short volume ID information
978 if (fActiveSectors) delete [] fActiveSectors;
979 fActiveSectors = new Bool_t[fTPCParam->GetNSector()];
12d8d654 980 if (flag) {
981 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kTRUE;
982 return;
983 }
792bb11c 984 for (Int_t i=0;i<fTPCParam->GetNSector();i++) fActiveSectors[i]=kFALSE;
985 TBranch * branch=0;
986 if (fHitType>1) branch = gAlice->TreeH()->GetBranch("TPC2");
987 else branch = gAlice->TreeH()->GetBranch("TPC");
988 Stat_t ntracks = gAlice->TreeH()->GetEntries();
989 // loop over all hits
990 for(Int_t track=0;track<ntracks;track++){
991 ResetHits();
992 //
993 if (fTrackHits && fHitType&4) {
994 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
995 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
996 br1->GetEvent(track);
997 br2->GetEvent(track);
998 Int_t *volumes = fTrackHits->GetVolumes();
999 for (Int_t j=0;j<fTrackHits->GetNVolumes(); j++)
1000 fActiveSectors[volumes[j]]=kTRUE;
1001 }
1002
1003 //
1004 if (fTrackHitsOld && fHitType&2) {
1005 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
1006 br->GetEvent(track);
1007 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
1008 for (UInt_t j=0;j<ar->GetSize();j++){
1009 fActiveSectors[((AliTrackHitsInfo*)ar->At(j))->fVolumeID] =kTRUE;
1010 }
1011 }
1012 }
1013
1014}
1015
1016
1017
fe4da5cc 1018
afc42102 1019void AliTPC::Digits2Clusters(TFile *of, Int_t eventnumber)
fe4da5cc 1020{
3c0f9266 1021 //-----------------------------------------------------------------
1022 // This is a simple cluster finder.
3c0f9266 1023 //-----------------------------------------------------------------
afc42102 1024 AliTPCclusterer::Digits2Clusters(fTPCParam,of,eventnumber);
fe4da5cc 1025}
1026
73042f01 1027extern Double_t SigmaY2(Double_t, Double_t, Double_t);
1028extern Double_t SigmaZ2(Double_t, Double_t);
fe4da5cc 1029//_____________________________________________________________________________
afc42102 1030void AliTPC::Hits2Clusters(TFile *of, Int_t eventn)
fe4da5cc 1031{
8c555625 1032 //--------------------------------------------------------
fe4da5cc 1033 // TPC simple cluster generator from hits
1034 // obtained from the TPC Fast Simulator
8c555625 1035 // The point errors are taken from the parametrization
1036 //--------------------------------------------------------
1037
1038 //-----------------------------------------------------------------
1039 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1040 //-----------------------------------------------------------------
73042f01 1041 // Adopted to Marian's cluster data structure by I.Belikov, CERN,
1042 // Jouri.Belikov@cern.ch
1043 //----------------------------------------------------------------
1044
1045 /////////////////////////////////////////////////////////////////////////////
1046 //
1047 //---------------------------------------------------------------------
1048 // ALICE TPC Cluster Parameters
1049 //--------------------------------------------------------------------
1050
1051
1052
1053 // Cluster width in rphi
1054 const Float_t kACrphi=0.18322;
1055 const Float_t kBCrphi=0.59551e-3;
1056 const Float_t kCCrphi=0.60952e-1;
1057 // Cluster width in z
1058 const Float_t kACz=0.19081;
1059 const Float_t kBCz=0.55938e-3;
1060 const Float_t kCCz=0.30428;
1061
1062 TDirectory *savedir=gDirectory;
1063
1064 if (!of->IsOpen()) {
1065 cerr<<"AliTPC::Hits2Clusters(): output file not open !\n";
1066 return;
1067 }
3c0f9266 1068
afc42102 1069 //if(fDefaults == 0) SetDefaults();
cc80f89e 1070
73042f01 1071 Float_t sigmaRphi,sigmaZ,clRphi,clZ;
fe4da5cc 1072 //
1578254f 1073 TParticle *particle; // pointer to a given particle
fe4da5cc 1074 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 1075 Int_t sector;
fe4da5cc 1076 Int_t ipart;
1077 Float_t xyz[5];
1078 Float_t pl,pt,tanth,rpad,ratio;
fe4da5cc 1079 Float_t cph,sph;
1080
1081 //---------------------------------------------------------------
1082 // Get the access to the tracks
1083 //---------------------------------------------------------------
1084
73042f01 1085 TTree *tH = gAlice->TreeH();
1086 Stat_t ntracks = tH->GetEntries();
73042f01 1087
1088 //Switch to the output file
1089 of->cd();
1090
afc42102 1091 char cname[100];
1092
1093 sprintf(cname,"TreeC_TPC_%d",eventn);
1094
73042f01 1095 fTPCParam->Write(fTPCParam->GetTitle());
1096 AliTPCClustersArray carray;
1097 carray.Setup(fTPCParam);
1098 carray.SetClusterType("AliTPCcluster");
1099 carray.MakeTree();
1100
1101 Int_t nclusters=0; //cluster counter
fe4da5cc 1102
1103 //------------------------------------------------------------
cc80f89e 1104 // Loop over all sectors (72 sectors for 20 deg
1105 // segmentation for both lower and upper sectors)
1106 // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0
3c0f9266 1107 // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0
fe4da5cc 1108 //
3c0f9266 1109 // First cluster for sector 0 starts at "0"
fe4da5cc 1110 //------------------------------------------------------------
cc80f89e 1111
1112 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){
8c555625 1113 //MI change
cc80f89e 1114 fTPCParam->AdjustCosSin(isec,cph,sph);
fe4da5cc 1115
1116 //------------------------------------------------------------
1117 // Loop over tracks
1118 //------------------------------------------------------------
1119
1120 for(Int_t track=0;track<ntracks;track++){
1121 ResetHits();
73042f01 1122 tH->GetEvent(track);
fe4da5cc 1123 //
73042f01 1124 // Get number of the TPC hits
792bb11c 1125 //
39c8eb58 1126 tpcHit = (AliTPChit*)FirstHit(-1);
1127
fe4da5cc 1128 // Loop over hits
1129 //
39c8eb58 1130 while(tpcHit){
1131
1132 if (tpcHit->fQ == 0.) {
1133 tpcHit = (AliTPChit*) NextHit();
1134 continue; //information about track (I.Belikov)
1135 }
fe4da5cc 1136 sector=tpcHit->fSector; // sector number
39c8eb58 1137
39c8eb58 1138 if(sector != isec){
1139 tpcHit = (AliTPChit*) NextHit();
1140 continue;
1141 }
94de3818 1142 ipart=tpcHit->Track();
2ab0c725 1143 particle=gAlice->Particle(ipart);
1578254f 1144 pl=particle->Pz();
1145 pt=particle->Pt();
fe4da5cc 1146 if(pt < 1.e-9) pt=1.e-9;
1147 tanth=pl/pt;
1148 tanth = TMath::Abs(tanth);
94de3818 1149 rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y());
fe4da5cc 1150 ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason
73042f01 1151
fe4da5cc 1152 // space-point resolutions
1153
73042f01 1154 sigmaRphi=SigmaY2(rpad,tanth,pt);
1155 sigmaZ =SigmaZ2(rpad,tanth );
fe4da5cc 1156
1157 // cluster widths
1158
73042f01 1159 clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio;
1160 clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth;
fe4da5cc 1161
1162 // temporary protection
1163
73042f01 1164 if(sigmaRphi < 0.) sigmaRphi=0.4e-3;
1165 if(sigmaZ < 0.) sigmaZ=0.4e-3;
1166 if(clRphi < 0.) clRphi=2.5e-3;
1167 if(clZ < 0.) clZ=2.5e-5;
fe4da5cc 1168
1169 //
cc80f89e 1170
1171 //
1172 // smearing --> rotate to the 1 (13) or to the 25 (49) sector,
fe4da5cc 1173 // then the inaccuracy in a X-Y plane is only along Y (pad row)!
1174 //
94de3818 1175 Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph;
1176 Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph;
73042f01 1177 xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y
1178 Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ?
1179 fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle();
1180 Float_t ymax=xprim*TMath::Tan(0.5*alpha);
1181 if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim;
94de3818 1182 xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z
1183 if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z();
39c8eb58 1184 xyz[2]=sigmaRphi; // fSigmaY2
1185 xyz[3]=sigmaZ; // fSigmaZ2
1186 xyz[4]=tpcHit->fQ; // q
73042f01 1187
1188 AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow);
1189 if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow);
1190
94de3818 1191 Int_t tracks[3]={tpcHit->Track(), -1, -1};
39c8eb58 1192 AliTPCcluster cluster(tracks,xyz);
73042f01 1193
1194 clrow->InsertCluster(&cluster); nclusters++;
1195
39c8eb58 1196 tpcHit = (AliTPChit*)NextHit();
1197
1198
fe4da5cc 1199 } // end of loop over hits
73042f01 1200
1201 } // end of loop over tracks
1202
1203 Int_t nrows=fTPCParam->GetNRow(isec);
1204 for (Int_t irow=0; irow<nrows; irow++) {
1205 AliTPCClustersRow *clrow=carray.GetRow(isec,irow);
1206 if (!clrow) continue;
1207 carray.StoreRow(isec,irow);
1208 carray.ClearRow(isec,irow);
1209 }
1210
cc80f89e 1211 } // end of loop over sectors
73042f01 1212
1213 cerr<<"Number of made clusters : "<<nclusters<<" \n";
6bc3458d 1214 carray.GetTree()->SetName(cname);
1215 carray.GetTree()->Write();
73042f01 1216
1217 savedir->cd(); //switch back to the input file
cc80f89e 1218
1219} // end of function
1220
1221//_________________________________________________________________
1222void AliTPC::Hits2ExactClustersSector(Int_t isec)
1223{
1224 //--------------------------------------------------------
1225 //calculate exact cross point of track and given pad row
1226 //resulting values are expressed in "digit" coordinata
1227 //--------------------------------------------------------
1228
1229 //-----------------------------------------------------------------
1230 // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
1231 //-----------------------------------------------------------------
1232 //
1233 if (fClustersArray==0){
1234 return;
1235 }
1236 //
1237 TParticle *particle; // pointer to a given particle
1238 AliTPChit *tpcHit; // pointer to a sigle TPC hit
5f16d237 1239 // Int_t sector,nhits;
cc80f89e 1240 Int_t ipart;
73042f01 1241 const Int_t kcmaxhits=30000;
de61d5d5 1242 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
1243 AliTPCFastVector & xxx = *xxxx;
73042f01 1244 Int_t maxhits = kcmaxhits;
cc80f89e 1245 //construct array for each padrow
1246 for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++)
1247 fClustersArray->CreateRow(isec,i);
fe4da5cc 1248
cc80f89e 1249 //---------------------------------------------------------------
1250 // Get the access to the tracks
1251 //---------------------------------------------------------------
1252
73042f01 1253 TTree *tH = gAlice->TreeH();
1254 Stat_t ntracks = tH->GetEntries();
2ab0c725 1255 Int_t npart = gAlice->GetNtrack();
5f16d237 1256 //MI change
1257 TBranch * branch=0;
792bb11c 1258 if (fHitType>1) branch = tH->GetBranch("TPC2");
5f16d237 1259 else branch = tH->GetBranch("TPC");
1260
cc80f89e 1261 //------------------------------------------------------------
1262 // Loop over tracks
1263 //------------------------------------------------------------
792bb11c 1264
5f16d237 1265 for(Int_t track=0;track<ntracks;track++){
1266 Bool_t isInSector=kTRUE;
cc80f89e 1267 ResetHits();
792bb11c 1268 isInSector = TrackInVolume(isec,track);
5f16d237 1269 if (!isInSector) continue;
1270 //MI change
1271 branch->GetEntry(track); // get next track
cc80f89e 1272 //
1273 // Get number of the TPC hits and a pointer
1274 // to the particles
cc80f89e 1275 // Loop over hits
1276 //
1277 Int_t currentIndex=0;
1278 Int_t lastrow=-1; //last writen row
5f16d237 1279
1280 //M.I. changes
1281
1282 tpcHit = (AliTPChit*)FirstHit(-1);
1283 while(tpcHit){
1284
1285 Int_t sector=tpcHit->fSector; // sector number
1286 if(sector != isec){
1287 tpcHit = (AliTPChit*) NextHit();
1288 continue;
1289 }
1290
94de3818 1291 ipart=tpcHit->Track();
2ab0c725 1292 if (ipart<npart) particle=gAlice->Particle(ipart);
cc80f89e 1293
1294 //find row number
1295
94de3818 1296 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
cc80f89e 1297 Int_t index[3]={1,isec,0};
1298 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
5f16d237 1299 if (currentrow<0) {tpcHit = (AliTPChit*)NextHit(); continue;}
cc80f89e 1300 if (lastrow<0) lastrow=currentrow;
1301 if (currentrow==lastrow){
1302 if ( currentIndex>=maxhits){
73042f01 1303 maxhits+=kcmaxhits;
cc80f89e 1304 xxx.ResizeTo(4*maxhits);
1305 }
1306 xxx(currentIndex*4)=x[0];
1307 xxx(currentIndex*4+1)=x[1];
1308 xxx(currentIndex*4+2)=x[2];
1309 xxx(currentIndex*4+3)=tpcHit->fQ;
1310 currentIndex++;
1311 }
1312 else
1313 if (currentIndex>2){
1314 Float_t sumx=0;
1315 Float_t sumx2=0;
1316 Float_t sumx3=0;
1317 Float_t sumx4=0;
1318 Float_t sumy=0;
1319 Float_t sumxy=0;
1320 Float_t sumx2y=0;
1321 Float_t sumz=0;
1322 Float_t sumxz=0;
1323 Float_t sumx2z=0;
1324 Float_t sumq=0;
1325 for (Int_t index=0;index<currentIndex;index++){
1326 Float_t x,x2,x3,x4;
1327 x=x2=x3=x4=xxx(index*4);
1328 x2*=x;
1329 x3*=x2;
1330 x4*=x3;
1331 sumx+=x;
1332 sumx2+=x2;
1333 sumx3+=x3;
1334 sumx4+=x4;
1335 sumy+=xxx(index*4+1);
1336 sumxy+=xxx(index*4+1)*x;
1337 sumx2y+=xxx(index*4+1)*x2;
1338 sumz+=xxx(index*4+2);
1339 sumxz+=xxx(index*4+2)*x;
1340 sumx2z+=xxx(index*4+2)*x2;
1341 sumq+=xxx(index*4+3);
1342 }
73042f01 1343 Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2;
cc80f89e 1344 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
1345 sumx2*(sumx*sumx3-sumx2*sumx2);
1346
1347 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
1348 sumx2*(sumxy*sumx3-sumx2y*sumx2);
1349 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
1350 sumx2*(sumxz*sumx3-sumx2z*sumx2);
1351
1352 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
1353 sumx2*(sumx*sumx2y-sumx2*sumxy);
1354 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
1355 sumx2*(sumx*sumx2z-sumx2*sumxz);
1356
da33556f 1357 if (TMath::Abs(det)<0.00001){
1358 tpcHit = (AliTPChit*)NextHit();
1359 continue;
1360 }
1361
73042f01 1362 Float_t y=detay/det+centralPad;
cc80f89e 1363 Float_t z=detaz/det;
1364 Float_t by=detby/det; //y angle
1365 Float_t bz=detbz/det; //z angle
1366 sumy/=Float_t(currentIndex);
1367 sumz/=Float_t(currentIndex);
5f16d237 1368
cc80f89e 1369 AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow));
5f16d237 1370 if (row!=0) {
1371 AliComplexCluster* cl = new((AliComplexCluster*)row->Append()) AliComplexCluster ;
1372 // AliComplexCluster cl;
1373 cl->fX=z;
1374 cl->fY=y;
1375 cl->fQ=sumq;
1376 cl->fSigmaX2=bz;
1377 cl->fSigmaY2=by;
1378 cl->fTracks[0]=ipart;
1379 }
cc80f89e 1380 currentIndex=0;
1381 lastrow=currentrow;
1382 } //end of calculating cluster for given row
1383
1384
5f16d237 1385 tpcHit = (AliTPChit*)NextHit();
cc80f89e 1386 } // end of loop over hits
1387 } // end of loop over tracks
1388 //write padrows to tree
1389 for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) {
1390 fClustersArray->StoreRow(isec,ii);
1391 fClustersArray->ClearRow(isec,ii);
1392 }
1393 xxxx->Delete();
1394
fe4da5cc 1395}
0a61bf9d 1396
1397
1398
1399//__
1400void AliTPC::SDigits2Digits2(Int_t eventnumber)
1401{
1402 //create digits from summable digits
407ff276 1403 GenerNoise(500000); //create teble with noise
0a61bf9d 1404 char sname[100];
1405 char dname[100];
1406 sprintf(sname,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1407 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1408
1409 //conect tree with sSDigits
12d8d654 1410 TTree *t;
1411 if (gAlice->GetTreeDFile()) {
1412 t = (TTree *)gAlice->GetTreeDFile()->Get(sname);
1413 } else {
1414 t = (TTree *)gDirectory->Get(sname);
1415 }
1416 if (!t) {
1417 cerr<<"TPC tree with sdigits not found"<<endl;
1418 return;
1419 }
0a61bf9d 1420 AliSimDigits digarr, *dummy=&digarr;
1421 t->GetBranch("Segment")->SetAddress(&dummy);
1422 Stat_t nentries = t->GetEntries();
1423
5f16d237 1424 // set zero suppression
1425
1426 fTPCParam->SetZeroSup(2);
1427
1428 // get zero suppression
1429
1430 Int_t zerosup = fTPCParam->GetZeroSup();
1431
1432 //make tree with digits
1433
0a61bf9d 1434 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1435 arr->SetClass("AliSimDigits");
1436 arr->Setup(fTPCParam);
12d8d654 1437// Note that methods arr->MakeTree have different signatures
1438 if (gAlice->GetTreeDFile()) {
1439 arr->MakeTree(gAlice->GetTreeDFile());
1440 } else {
1441 arr->MakeTree(fDigitsFile);
1442 }
0a61bf9d 1443
1444 AliTPCParam * par =fTPCParam;
5f16d237 1445
0a61bf9d 1446 //Loop over segments of the TPC
5f16d237 1447
0a61bf9d 1448 for (Int_t n=0; n<nentries; n++) {
1449 t->GetEvent(n);
1450 Int_t sec, row;
1451 if (!par->AdjustSectorRow(digarr.GetID(),sec,row)) {
1452 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr.GetID()<<endl;
1453 continue;
1454 }
792bb11c 1455 if (!IsSectorActive(sec)) continue;
0a61bf9d 1456 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1457 Int_t nrows = digrow->GetNRows();
1458 Int_t ncols = digrow->GetNCols();
1459
1460 digrow->ExpandBuffer();
1461 digarr.ExpandBuffer();
1462 digrow->ExpandTrackBuffer();
1463 digarr.ExpandTrackBuffer();
1464
5f16d237 1465
407ff276 1466 Short_t * pamp0 = digarr.GetDigits();
1467 Int_t * ptracks0 = digarr.GetTracks();
1468 Short_t * pamp1 = digrow->GetDigits();
1469 Int_t * ptracks1 = digrow->GetTracks();
1470 Int_t nelems =nrows*ncols;
1471 Int_t saturation = fTPCParam->GetADCSat();
1472 //use internal structure of the AliDigits - for speed reason
1473 //if you cahnge implementation
1474 //of the Alidigits - it must be rewriten -
1475 for (Int_t i= 0; i<nelems; i++){
1476 // Float_t q = *pamp0;
1477 //q/=16.; //conversion faktor
1478 //Float_t noise= GetNoise();
1479 //q+=noise;
1480 //q= TMath::Nint(q);
1481 Float_t q = TMath::Nint(Float_t(*pamp0)/16.+GetNoise());
1482 if (q>zerosup){
1483 if (q>saturation) q=saturation;
1484 *pamp1=(Short_t)q;
1485 //if (ptracks0[0]==0)
1486 // ptracks1[0]=1;
1487 //else
1488 ptracks1[0]=ptracks0[0];
1489 ptracks1[nelems]=ptracks0[nelems];
1490 ptracks1[2*nelems]=ptracks0[2*nelems];
1491 }
1492 pamp0++;
1493 pamp1++;
1494 ptracks0++;
1495 ptracks1++;
1496 }
5f16d237 1497
5f16d237 1498 arr->StoreRow(sec,row);
1499 arr->ClearRow(sec,row);
9fe90376 1500 // cerr<<sec<<"\t"<<row<<"\n";
5f16d237 1501 }
0a61bf9d 1502
0a61bf9d 1503
5f16d237 1504 //write results
0a61bf9d 1505
5f16d237 1506
1507 arr->GetTree()->SetName(dname);
12d8d654 1508 arr->GetTree()->AutoSave();
5f16d237 1509 delete arr;
1510}
1511//_________________________________________
1512void AliTPC::Merge(TTree * intree, Int_t *mask, Int_t nin, Int_t outid)
1513{
1514
1515 //intree - pointer to array of trees with s digits
1516 //mask - mask for each
1517 //nin - number of inputs
1518 //outid - event number of the output event
1519
1520 //create digits from summable digits
1521 //conect tree with sSDigits
1522
1523
1524 AliSimDigits ** digarr = new AliSimDigits*[nin];
1525 for (Int_t i1=0;i1<nin; i1++){
1526 digarr[i1]=0;
1527 intree[i1].GetBranch("Segment")->SetAddress(&digarr[i1]);
0a61bf9d 1528 }
5f16d237 1529 Stat_t nentries = intree[0].GetEntries();
1530
1531 //make tree with digits
1532 char dname[100];
1533 sprintf(dname,"TreeD_%s_%d",fTPCParam->GetTitle(),outid);
1534 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1535 arr->SetClass("AliSimDigits");
1536 arr->Setup(fTPCParam);
1537 arr->MakeTree(fDigitsFile);
0a61bf9d 1538
5f16d237 1539 // set zero suppression
0a61bf9d 1540
5f16d237 1541 fTPCParam->SetZeroSup(2);
0a61bf9d 1542
5f16d237 1543 // get zero suppression
1544
1545 Int_t zerosup = fTPCParam->GetZeroSup();
1546
1547
1548 AliTPCParam * par =fTPCParam;
1549
1550 //Loop over segments of the TPC
1551 for (Int_t n=0; n<nentries; n++) {
0a61bf9d 1552
5f16d237 1553 for (Int_t i=0;i<nin; i++){
1554 //connect proper digits
1555 intree[i].GetEvent(n);
1556 digarr[i]->ExpandBuffer();
1557 digarr[i]->ExpandTrackBuffer();
1558 }
1559 Int_t sec, row;
1560 if (!par->AdjustSectorRow(digarr[0]->GetID(),sec,row)) {
1561 cerr<<"AliTPC warning: invalid segment ID ! "<<digarr[0]->GetID()<<endl;
1562 continue;
1563 }
0a61bf9d 1564
5f16d237 1565 AliSimDigits * digrow =(AliSimDigits*) arr->CreateRow(sec,row);
1566 Int_t nrows = digrow->GetNRows();
1567 Int_t ncols = digrow->GetNCols();
0a61bf9d 1568
5f16d237 1569 digrow->ExpandBuffer();
1570 digrow->ExpandTrackBuffer();
1571
1572 for (Int_t rows=0;rows<nrows; rows++){
1573 for (Int_t col=0;col<ncols; col++){
1574 Float_t q=0;
1575 Int_t label[1000]; // i hope no more than 300 events merged
1576 Int_t labptr = 0;
1577 // looop over digits
1578 for (Int_t i=0;i<nin; i++){
1579 q += digarr[i]->GetDigitFast(rows,col);
1580 for (Int_t tr=0;tr<3;tr++) {
1581 Int_t lab = digarr[i]->GetTrackIDFast(rows,col,tr);
1582 if ( lab > 1) {
1583 label[labptr]=lab+mask[i]-2;
1584 labptr++;
1585 }
1586 }
1587 }
1588 //add noise
1589 q = gRandom->Gaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac()*16);
1590
1591 q/=16; //conversion faktor
1592 q=(Short_t)q;
1593
1594 if (q> zerosup){
1595
43510af3 1596 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat();
1597 digrow->SetDigitFast((Short_t)q,rows,col);
5f16d237 1598 for (Int_t tr=0;tr<3;tr++){
1599 if (tr<labptr)
1600 ((AliSimDigits*)digrow)->SetTrackIDFast(label[tr],rows,col,tr);
1601 else
1602 ((AliSimDigits*)digrow)->SetTrackIDFast(-1,rows,col,tr);
1603 }
1604 }
1605 }
1606 }
1607 arr->StoreRow(sec,row);
1608
1609 arr->ClearRow(sec,row);
792bb11c 1610
5f16d237 1611 }
1612
1613 delete digarr;
1614 arr->GetTree()->SetName(dname);
1615 arr->GetTree()->Write();
1616
1617 delete arr;
0a61bf9d 1618
0a61bf9d 1619}
1620
0a61bf9d 1621/*_________________________________________
afc42102 1622void AliTPC::SDigits2Digits(Int_t eventnumber)
2ab0c725 1623{
afc42102 1624
1625
1626 cerr<<"Digitizing TPC...\n";
1627
1628 Hits2Digits(eventnumber);
1629
1630
1631 //write results
1632
1633 // char treeName[100];
1634
1635 // sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1636
1637 // GetDigitsArray()->GetTree()->Write(treeName);
1638}
0a61bf9d 1639*/
afc42102 1640//__________________________________________________________________
1641void AliTPC::SetDefaults(){
1642
1643
1644 cerr<<"Setting default parameters...\n";
1645
1646 // Set response functions
1647
2ab0c725 1648 AliTPCParamSR *param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60");
7a09f434 1649 if(param){
1650 printf("You are using 2 pad-length geom hits with 3 pad-lenght geom digits...\n");
1651 delete param;
1652 param = new AliTPCParamSR();
1653 }
1654 else {
1655 param=(AliTPCParamSR*)gDirectory->Get("75x40_100x60_150x60");
1656 }
1657 if(!param){
1658 printf("No TPC parameters found\n");
1659 exit(4);
1660 }
1661
1662
2ab0c725 1663 AliTPCPRF2D * prfinner = new AliTPCPRF2D;
f03e3423 1664 AliTPCPRF2D * prfouter1 = new AliTPCPRF2D;
1665 AliTPCPRF2D * prfouter2 = new AliTPCPRF2D;
2ab0c725 1666 AliTPCRF1D * rf = new AliTPCRF1D(kTRUE);
2ab0c725 1667 rf->SetGauss(param->GetZSigma(),param->GetZWidth(),1.);
1668 rf->SetOffset(3*param->GetZSigma());
1669 rf->Update();
afc42102 1670
1671 TDirectory *savedir=gDirectory;
2ab0c725 1672 TFile *f=TFile::Open("$ALICE_ROOT/TPC/AliTPCprf2d.root");
1673 if (!f->IsOpen()) {
afc42102 1674 cerr<<"Can't open $ALICE_ROOT/TPC/AliTPCprf2d.root !\n" ;
2ab0c725 1675 exit(3);
1676 }
1677 prfinner->Read("prf_07504_Gati_056068_d02");
f03e3423 1678 prfouter1->Read("prf_10006_Gati_047051_d03");
1679 prfouter2->Read("prf_15006_Gati_047051_d03");
2ab0c725 1680 f->Close();
afc42102 1681 savedir->cd();
1682
2ab0c725 1683 param->SetInnerPRF(prfinner);
f03e3423 1684 param->SetOuter1PRF(prfouter1);
1685 param->SetOuter2PRF(prfouter2);
2ab0c725 1686 param->SetTimeRF(rf);
1687
afc42102 1688 // set fTPCParam
1689
2ab0c725 1690 SetParam(param);
1691
afc42102 1692
1693 fDefaults = 1;
1694
1695}
1696//__________________________________________________________________
1697void AliTPC::Hits2Digits(Int_t eventnumber)
1698{
1699 //----------------------------------------------------
1700 // Loop over all sectors for a single event
1701 //----------------------------------------------------
1702
1703
1704 if(fDefaults == 0) SetDefaults(); // check if the parameters are set
407ff276 1705 GenerNoise(500000); //create teble with noise
2ab0c725 1706
1707 //setup TPCDigitsArray
afc42102 1708
1709 if(GetDigitsArray()) delete GetDigitsArray();
1710
2ab0c725 1711 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1712 arr->SetClass("AliSimDigits");
afc42102 1713 arr->Setup(fTPCParam);
12d8d654 1714// Note that methods arr->MakeTree have different signatures
1715 if (gAlice->GetTreeDFile()) {
1716 arr->MakeTree(gAlice->GetTreeDFile());
1717 } else {
1718 arr->MakeTree(fDigitsFile);
1719 }
2ab0c725 1720 SetDigitsArray(arr);
1721
afc42102 1722 fDigitsSwitch=0; // standard digits
2ab0c725 1723
0a9b058d 1724 cerr<<"Digitizing TPC -- normal digits...\n";
fe4da5cc 1725
f03e3423 1726 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
1727
afc42102 1728 // write results
1729
1730 char treeName[100];
1731
1732 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
f8cf550c 1733
6bc3458d 1734 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1735 GetDigitsArray()->GetTree()->AutoSave();
cc80f89e 1736
cc80f89e 1737
8c555625 1738}
1739
afc42102 1740
1741
f8cf550c 1742//__________________________________________________________________
0a61bf9d 1743void AliTPC::Hits2SDigits2(Int_t eventnumber)
f8cf550c 1744{
1745
1746 //-----------------------------------------------------------
1747 // summable digits - 16 bit "ADC", no noise, no saturation
1748 //-----------------------------------------------------------
1749
1750 //----------------------------------------------------
afc42102 1751 // Loop over all sectors for a single event
f8cf550c 1752 //----------------------------------------------------
1753
afc42102 1754
1755 if(fDefaults == 0) SetDefaults();
407ff276 1756 GenerNoise(500000); //create table with noise
afc42102 1757 //setup TPCDigitsArray
1758
1759 if(GetDigitsArray()) delete GetDigitsArray();
1760
1761 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1762 arr->SetClass("AliSimDigits");
1763 arr->Setup(fTPCParam);
12d8d654 1764// Note that methods arr->MakeTree have different signatures
1765 if (gAlice->GetTreeSFile()) {
1766 arr->MakeTree(gAlice->GetTreeSFile());
1767 } else {
1768 arr->MakeTree(fDigitsFile);
1769 }
afc42102 1770 SetDigitsArray(arr);
1771
0a9b058d 1772 cerr<<"Digitizing TPC -- summable digits...\n";
afc42102 1773
1774 fDigitsSwitch=1; // summable digits
5f16d237 1775
1776 // set zero suppression to "0"
1777
1778 fTPCParam->SetZeroSup(0);
f8cf550c 1779
792bb11c 1780 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
f8cf550c 1781
afc42102 1782
1783 // write results
1784
1785 char treeName[100];
1786
1787 sprintf(treeName,"TreeS_%s_%d",fTPCParam->GetTitle(),eventnumber);
1788
6bc3458d 1789 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1790 GetDigitsArray()->GetTree()->AutoSave();
afc42102 1791
f8cf550c 1792}
8c555625 1793
afc42102 1794
1795
0a61bf9d 1796//__________________________________________________________________
1797void AliTPC::Hits2SDigits()
1798{
1799
1800 //-----------------------------------------------------------
1801 // summable digits - 16 bit "ADC", no noise, no saturation
1802 //-----------------------------------------------------------
1803
1804 //----------------------------------------------------
1805 // Loop over all sectors for a single event
1806 //----------------------------------------------------
1807 //MI change - for pp run
1808 Int_t eventnumber = gAlice->GetEvNumber();
1809
1810 if(fDefaults == 0) SetDefaults();
180f4872 1811 GenerNoise(500000); //create table with noise
0a61bf9d 1812
1813 //setup TPCDigitsArray
1814
1815 if(GetDigitsArray()) delete GetDigitsArray();
1816
1817 AliTPCDigitsArray *arr = new AliTPCDigitsArray;
1818 arr->SetClass("AliSimDigits");
1819 arr->Setup(fTPCParam);
12d8d654 1820// Note that methods arr->MakeTree have different signatures
1821 if (gAlice->GetTreeSFile()) {
1822 arr->MakeTree(gAlice->GetTreeSFile());
1823 } else {
1824 arr->MakeTree(fDigitsFile);
1825 }
0a61bf9d 1826 SetDigitsArray(arr);
1827
0a9b058d 1828 cerr<<"Digitizing TPC -- summable digits...\n";
0a61bf9d 1829
1830 // fDigitsSwitch=1; // summable digits -for the moment direct
1831
792bb11c 1832 for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) if (IsSectorActive(isec)) Hits2DigitsSector(isec);
0a61bf9d 1833
1834
1835 // write results
1836 char treeName[100];
1837
1838 sprintf(treeName,"TreeD_%s_%d",fTPCParam->GetTitle(),eventnumber);
1839
6bc3458d 1840 GetDigitsArray()->GetTree()->SetName(treeName);
12d8d654 1841 GetDigitsArray()->GetTree()->AutoSave();
0a61bf9d 1842
1843}
1844
1845
fe4da5cc 1846//_____________________________________________________________________________
8c555625 1847void AliTPC::Hits2DigitsSector(Int_t isec)
fe4da5cc 1848{
8c555625 1849 //-------------------------------------------------------------------
fe4da5cc 1850 // TPC conversion from hits to digits.
8c555625 1851 //-------------------------------------------------------------------
1852
1853 //-----------------------------------------------------------------
1854 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
1855 //-----------------------------------------------------------------
1856
fe4da5cc 1857 //-------------------------------------------------------
8c555625 1858 // Get the access to the track hits
fe4da5cc 1859 //-------------------------------------------------------
8c555625 1860
afc42102 1861 // check if the parameters are set - important if one calls this method
1862 // directly, not from the Hits2Digits
1863
1864 if(fDefaults == 0) SetDefaults();
cc80f89e 1865
73042f01 1866 TTree *tH = gAlice->TreeH(); // pointer to the hits tree
1867 Stat_t ntracks = tH->GetEntries();
8c555625 1868
1869 if( ntracks > 0){
1870
1871 //-------------------------------------------
1872 // Only if there are any tracks...
1873 //-------------------------------------------
1874
8c555625 1875 TObjArray **row;
fe4da5cc 1876
a62d28a2 1877 //printf("*** Processing sector number %d ***\n",isec);
8c555625 1878
1879 Int_t nrows =fTPCParam->GetNRow(isec);
1880
b584c7dd 1881 row= new TObjArray* [nrows+2]; // 2 extra rows for cross talk
fe4da5cc 1882
73042f01 1883 MakeSector(isec,nrows,tH,ntracks,row);
8c555625 1884
1885 //--------------------------------------------------------
1886 // Digitize this sector, row by row
de61d5d5 1887 // row[i] is the pointer to the TObjArray of AliTPCFastVectors,
8c555625 1888 // each one containing electrons accepted on this
1889 // row, assigned into tracks
1890 //--------------------------------------------------------
1891
1892 Int_t i;
1893
2ab0c725 1894 if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree(fDigitsFile);
8c555625 1895
cc80f89e 1896 for (i=0;i<nrows;i++){
8c555625 1897
afc42102 1898 AliDigits * dig = fDigitsArray->CreateRow(isec,i);
8c555625 1899
cc80f89e 1900 DigitizeRow(i,isec,row);
8c555625 1901
cc80f89e 1902 fDigitsArray->StoreRow(isec,i);
8c555625 1903
792bb11c 1904 Int_t ndig = dig->GetDigitSize();
1905 if (gDebug > 10) printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig);
1906
cc80f89e 1907 fDigitsArray->ClearRow(isec,i);
8c555625 1908
cc80f89e 1909
8c555625 1910 } // end of the sector digitization
8c555625 1911
df32adf9 1912 for(i=0;i<nrows+2;i++){
39c8eb58 1913 row[i]->Delete();
1914 delete row[i];
cc80f89e 1915 }
1916
8c555625 1917 delete [] row; // delete the array of pointers to TObjArray-s
1918
1919 } // ntracks >0
8c555625 1920
cc80f89e 1921} // end of Hits2DigitsSector
8c555625 1922
8c555625 1923
8c555625 1924//_____________________________________________________________________________
cc80f89e 1925void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows)
8c555625 1926{
1927 //-----------------------------------------------------------
1928 // Single row digitization, coupling from the neighbouring
1929 // rows taken into account
1930 //-----------------------------------------------------------
1931
1932 //-----------------------------------------------------------------
1933 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 1934 // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de
8c555625 1935 //-----------------------------------------------------------------
1936
1937
8c555625 1938 Float_t zerosup = fTPCParam->GetZeroSup();
b584c7dd 1939 // Int_t nrows =fTPCParam->GetNRow(isec);
cc80f89e 1940 fCurrentIndex[1]= isec;
8c555625 1941
8c555625 1942
73042f01 1943 Int_t nofPads = fTPCParam->GetNPads(isec,irow);
1944 Int_t nofTbins = fTPCParam->GetMaxTBin();
1945 Int_t indexRange[4];
8c555625 1946 //
1947 // Integrated signal for this row
1948 // and a single track signal
cc80f89e 1949 //
de61d5d5 1950
1951 AliTPCFastMatrix *m1 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // integrated
1952 AliTPCFastMatrix *m2 = new AliTPCFastMatrix(0,nofPads,0,nofTbins); // single
8c555625 1953 //
de61d5d5 1954 AliTPCFastMatrix &total = *m1;
8c555625 1955
1956 // Array of pointers to the label-signal list
1957
73042f01 1958 Int_t nofDigits = nofPads*nofTbins; // number of digits for this row
1959 Float_t **pList = new Float_t* [nofDigits];
8c555625 1960
1961 Int_t lp;
cc80f89e 1962 Int_t i1;
73042f01 1963 for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL
8c555625 1964 //
cc80f89e 1965 //calculate signal
1966 //
b584c7dd 1967 //Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0);
1968 //Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1);
1969 Int_t row1=irow;
1970 Int_t row2=irow+2;
cc80f89e 1971 for (Int_t row= row1;row<=row2;row++){
1972 Int_t nTracks= rows[row]->GetEntries();
1973 for (i1=0;i1<nTracks;i1++){
1974 fCurrentIndex[2]= row;
b584c7dd 1975 fCurrentIndex[3]=irow+1;
1976 if (row==irow+1){
cc80f89e 1977 m2->Zero(); // clear single track signal matrix
73042f01 1978 Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange);
1979 GetList(trackLabel,nofPads,m2,indexRange,pList);
cc80f89e 1980 }
73042f01 1981 else GetSignal(rows[row],i1,0,m1,indexRange);
cc80f89e 1982 }
8c555625 1983 }
cc80f89e 1984
8c555625 1985 Int_t tracks[3];
8c555625 1986
cc80f89e 1987 AliDigits *dig = fDigitsArray->GetRow(isec,irow);
de61d5d5 1988 Int_t gi=-1;
1989 Float_t fzerosup = zerosup+0.5;
1990 for(Int_t it=0;it<nofTbins;it++){
1991 Float_t *pq = &(total.UncheckedAt(0,it));
1992 for(Int_t ip=0;ip<nofPads;ip++){
1993 gi++;
1994 Float_t q=*pq;
1995 pq++;
f8cf550c 1996 if(fDigitsSwitch == 0){
407ff276 1997 q+=GetNoise();
de61d5d5 1998 if(q <=fzerosup) continue; // do not fill zeros
68771f83 1999 q = TMath::Nint(q);
f8cf550c 2000 if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation
cc80f89e 2001
f8cf550c 2002 }
2003
2004 else {
5f16d237 2005 if(q <= 0.) continue; // do not fill zeros
68771f83 2006 if(q>2000.) q=2000.;
f8cf550c 2007 q *= 16.;
68771f83 2008 q = TMath::Nint(q);
f8cf550c 2009 }
8c555625 2010
2011 //
2012 // "real" signal or electronic noise (list = -1)?
2013 //
2014
2015 for(Int_t j1=0;j1<3;j1++){
407ff276 2016 tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -2;
8c555625 2017 }
2018
cc80f89e 2019//Begin_Html
2020/*
2021 <A NAME="AliDigits"></A>
2022 using of AliDigits object
2023*/
2024//End_Html
2025 dig->SetDigitFast((Short_t)q,it,ip);
2026 if (fDigitsArray->IsSimulated())
2027 {
2028 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0);
2029 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1);
2030 ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2);
2031 }
2032
8c555625 2033
2034 } // end of loop over time buckets
2035 } // end of lop over pads
2036
2037 //
2038 // This row has been digitized, delete nonused stuff
2039 //
2040
73042f01 2041 for(lp=0;lp<nofDigits;lp++){
8c555625 2042 if(pList[lp]) delete [] pList[lp];
2043 }
2044
2045 delete [] pList;
2046
2047 delete m1;
2048 delete m2;
cc80f89e 2049 // delete m3;
8c555625 2050
2051} // end of DigitizeRow
cc80f89e 2052
8c555625 2053//_____________________________________________________________________________
cc80f89e 2054
de61d5d5 2055Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr,
2056 AliTPCFastMatrix *m1, AliTPCFastMatrix *m2,Int_t *indexRange)
8c555625 2057{
2058
2059 //---------------------------------------------------------------
2060 // Calculates 2-D signal (pad,time) for a single track,
2061 // returns a pointer to the signal matrix and the track label
2062 // No digitization is performed at this level!!!
2063 //---------------------------------------------------------------
2064
2065 //-----------------------------------------------------------------
2066 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
cc80f89e 2067 // Modified: Marian Ivanov
8c555625 2068 //-----------------------------------------------------------------
2069
de61d5d5 2070 AliTPCFastVector *tv;
2071
2072 tv = (AliTPCFastVector*)p1->At(ntr); // pointer to a track
2073 AliTPCFastVector &v = *tv;
8c555625 2074
2075 Float_t label = v(0);
b584c7dd 2076 Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]-1)-1)/2;
8c555625 2077
8c555625 2078 Int_t nElectrons = (tv->GetNrows()-1)/4;
73042f01 2079 indexRange[0]=9999; // min pad
2080 indexRange[1]=-1; // max pad
2081 indexRange[2]=9999; //min time
2082 indexRange[3]=-1; // max time
8c555625 2083
de61d5d5 2084 AliTPCFastMatrix &signal = *m1;
2085 AliTPCFastMatrix &total = *m2;
8c555625 2086 //
2087 // Loop over all electrons
2088 //
8c555625 2089 for(Int_t nel=0; nel<nElectrons; nel++){
cc80f89e 2090 Int_t idx=nel*4;
2091 Float_t aval = v(idx+4);
2092 Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac();
2093 Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)};
de61d5d5 2094 Int_t n = ((AliTPCParamSR*)fTPCParam)->CalcResponseFast(xyz,fCurrentIndex,fCurrentIndex[3]);
2095
2096 Int_t *index = fTPCParam->GetResBin(0);
2097 Float_t *weight = & (fTPCParam->GetResWeight(0));
2098
2099 if (n>0) for (Int_t i =0; i<n; i++){
73042f01 2100 Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0
de61d5d5 2101
2102 if (pad>=0){
cc80f89e 2103 Int_t time=index[2];
de61d5d5 2104 Float_t qweight = *(weight)*eltoadcfac;
cc80f89e 2105
de61d5d5 2106 if (m1!=0) signal.UncheckedAt(pad,time)+=qweight;
2107 total.UncheckedAt(pad,time)+=qweight;
2108 if (indexRange[0]>pad) indexRange[0]=pad;
2109 if (indexRange[1]<pad) indexRange[1]=pad;
2110 if (indexRange[2]>time) indexRange[2]=time;
2111 if (indexRange[3]<time) indexRange[3]=time;
2112
2113 index+=3;
2114 weight++;
2115
cc80f89e 2116 }
2117 }
8c555625 2118 } // end of loop over electrons
cc80f89e 2119
8c555625 2120 return label; // returns track label when finished
2121}
2122
2123//_____________________________________________________________________________
de61d5d5 2124void AliTPC::GetList(Float_t label,Int_t np,AliTPCFastMatrix *m,
2125 Int_t *indexRange, Float_t **pList)
8c555625 2126{
2127 //----------------------------------------------------------------------
2128 // Updates the list of tracks contributing to digits for a given row
2129 //----------------------------------------------------------------------
2130
2131 //-----------------------------------------------------------------
2132 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2133 //-----------------------------------------------------------------
2134
de61d5d5 2135 AliTPCFastMatrix &signal = *m;
8c555625 2136
2137 // lop over nonzero digits
2138
73042f01 2139 for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){
2140 for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){
8c555625 2141
2142
921bf71a 2143 // accept only the contribution larger than 500 electrons (1/2 s_noise)
2144
cc80f89e 2145 if(signal(ip,it)<0.5) continue;
921bf71a 2146
2147
73042f01 2148 Int_t globalIndex = it*np+ip; // globalIndex starts from 0!
8c555625 2149
73042f01 2150 if(!pList[globalIndex]){
8c555625 2151
2152 //
2153 // Create new list (6 elements - 3 signals and 3 labels),
8c555625 2154 //
2155
73042f01 2156 pList[globalIndex] = new Float_t [6];
8c555625 2157
2158 // set list to -1
2159
73042f01 2160 *pList[globalIndex] = -1.;
2161 *(pList[globalIndex]+1) = -1.;
2162 *(pList[globalIndex]+2) = -1.;
2163 *(pList[globalIndex]+3) = -1.;
2164 *(pList[globalIndex]+4) = -1.;
2165 *(pList[globalIndex]+5) = -1.;
8c555625 2166
2167
73042f01 2168 *pList[globalIndex] = label;
2169 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2170 }
2171 else{
2172
2173 // check the signal magnitude
2174
73042f01 2175 Float_t highest = *(pList[globalIndex]+3);
2176 Float_t middle = *(pList[globalIndex]+4);
2177 Float_t lowest = *(pList[globalIndex]+5);
8c555625 2178
2179 //
2180 // compare the new signal with already existing list
2181 //
2182
2183 if(signal(ip,it)<lowest) continue; // neglect this track
2184
2185 //
2186
2187 if (signal(ip,it)>highest){
73042f01 2188 *(pList[globalIndex]+5) = middle;
2189 *(pList[globalIndex]+4) = highest;
2190 *(pList[globalIndex]+3) = signal(ip,it);
8c555625 2191
73042f01 2192 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2193 *(pList[globalIndex]+1) = *pList[globalIndex];
2194 *pList[globalIndex] = label;
8c555625 2195 }
2196 else if (signal(ip,it)>middle){
73042f01 2197 *(pList[globalIndex]+5) = middle;
2198 *(pList[globalIndex]+4) = signal(ip,it);
8c555625 2199
73042f01 2200 *(pList[globalIndex]+2) = *(pList[globalIndex]+1);
2201 *(pList[globalIndex]+1) = label;
8c555625 2202 }
2203 else{
73042f01 2204 *(pList[globalIndex]+5) = signal(ip,it);
2205 *(pList[globalIndex]+2) = label;
8c555625 2206 }
2207 }
2208
2209 } // end of loop over pads
2210 } // end of loop over time bins
2211
2212
2213
8c555625 2214}//end of GetList
2215//___________________________________________________________________
2216void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH,
2217 Stat_t ntracks,TObjArray **row)
2218{
2219
2220 //-----------------------------------------------------------------
2221 // Prepares the sector digitization, creates the vectors of
2222 // tracks for each row of this sector. The track vector
2223 // contains the track label and the position of electrons.
2224 //-----------------------------------------------------------------
2225
2226 //-----------------------------------------------------------------
2227 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2228 //-----------------------------------------------------------------
2229
cc80f89e 2230 Float_t gasgain = fTPCParam->GetGasGain();
8c555625 2231 Int_t i;
cc80f89e 2232 Float_t xyz[4];
8c555625 2233
2234 AliTPChit *tpcHit; // pointer to a sigle TPC hit
39c8eb58 2235 //MI change
2236 TBranch * branch=0;
792bb11c 2237 if (fHitType>1) branch = TH->GetBranch("TPC2");
39c8eb58 2238 else branch = TH->GetBranch("TPC");
2239
8c555625 2240
2241 //----------------------------------------------
2242 // Create TObjArray-s, one for each row,
de61d5d5 2243 // each TObjArray will store the AliTPCFastVectors
2244 // of electrons, one AliTPCFastVectors per each track.
8c555625 2245 //----------------------------------------------
2246
b584c7dd 2247 Int_t *nofElectrons = new Int_t [nrows+2]; // electron counter for each row
2248 AliTPCFastVector **tracks = new AliTPCFastVector* [nrows+2]; //pointers to the track vectors
de61d5d5 2249
b584c7dd 2250 for(i=0; i<nrows+2; i++){
8c555625 2251 row[i] = new TObjArray;
f74bb6f5 2252 nofElectrons[i]=0;
2253 tracks[i]=0;
8c555625 2254 }
8c555625 2255
37831078 2256
2257
8c555625 2258 //--------------------------------------------------------------------
2259 // Loop over tracks, the "track" contains the full history
2260 //--------------------------------------------------------------------
2261
2262 Int_t previousTrack,currentTrack;
2263 previousTrack = -1; // nothing to store so far!
2264
2265 for(Int_t track=0;track<ntracks;track++){
39c8eb58 2266 Bool_t isInSector=kTRUE;
8c555625 2267 ResetHits();
792bb11c 2268 isInSector = TrackInVolume(isec,track);
39c8eb58 2269 if (!isInSector) continue;
2270 //MI change
2271 branch->GetEntry(track); // get next track
2272
2273 //M.I. changes
8c555625 2274
39c8eb58 2275 tpcHit = (AliTPChit*)FirstHit(-1);
8c555625 2276
2277 //--------------------------------------------------------------
2278 // Loop over hits
2279 //--------------------------------------------------------------
2280
8c555625 2281
39c8eb58 2282 while(tpcHit){
8c555625 2283
2284 Int_t sector=tpcHit->fSector; // sector number
39c8eb58 2285 if(sector != isec){
2286 tpcHit = (AliTPChit*) NextHit();
2287 continue;
2288 }
8c555625 2289
94de3818 2290 currentTrack = tpcHit->Track(); // track number
39c8eb58 2291
2292
8c555625 2293 if(currentTrack != previousTrack){
2294
2295 // store already filled fTrack
2296
b584c7dd 2297 for(i=0;i<nrows+2;i++){
8c555625 2298 if(previousTrack != -1){
73042f01 2299 if(nofElectrons[i]>0){
de61d5d5 2300 AliTPCFastVector &v = *tracks[i];
8c555625 2301 v(0) = previousTrack;
73042f01 2302 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2303 row[i]->Add(tracks[i]);
8c555625 2304 }
2305 else{
de61d5d5 2306 delete tracks[i]; // delete empty AliTPCFastVector
cc80f89e 2307 tracks[i]=0;
8c555625 2308 }
2309 }
2310
73042f01 2311 nofElectrons[i]=0;
de61d5d5 2312 tracks[i] = new AliTPCFastVector(481); // AliTPCFastVectors for the next fTrack
8c555625 2313
2314 } // end of loop over rows
2315
2316 previousTrack=currentTrack; // update track label
2317 }
2318
73042f01 2319 Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons)
8c555625 2320
2321 //---------------------------------------------------
2322 // Calculate the electron attachment probability
2323 //---------------------------------------------------
2324
cc80f89e 2325
94de3818 2326 Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z()))
cc80f89e 2327 /fTPCParam->GetDriftV();
8c555625 2328 // in microseconds!
73042f01 2329 Float_t attProb = fTPCParam->GetAttCoef()*
8c555625 2330 fTPCParam->GetOxyCont()*time; // fraction!
2331
2332 //-----------------------------------------------
2333 // Loop over electrons
2334 //-----------------------------------------------
cc80f89e 2335 Int_t index[3];
2336 index[1]=isec;
73042f01 2337 for(Int_t nel=0;nel<qI;nel++){
8c555625 2338 // skip if electron lost due to the attachment
73042f01 2339 if((gRandom->Rndm(0)) < attProb) continue; // electron lost!
94de3818 2340 xyz[0]=tpcHit->X();
2341 xyz[1]=tpcHit->Y();
1705494b 2342 xyz[2]=tpcHit->Z();
2343 //
2344 // protection for the nonphysical avalanche size (10**6 maximum)
2345 //
710dacf5 2346 Double_t rn=TMath::Max(gRandom->Rndm(0),1.93e-22);
2347 xyz[3]= (Float_t) (-gasgain*TMath::Log(rn));
cc80f89e 2348 index[0]=1;
2349
b584c7dd 2350 TransportElectron(xyz,index);
73042f01 2351 Int_t rowNumber;
b584c7dd 2352 fTPCParam->GetPadRow(xyz,index);
2353 // row 0 - cross talk from the innermost row
2354 // row fNRow+1 cross talk from the outermost row
2355 rowNumber = index[2]+1;
cc80f89e 2356 //transform position to local digit coordinates
2357 //relative to nearest pad row
b584c7dd 2358 if ((rowNumber<0)||rowNumber>fTPCParam->GetNRow(isec)+1) continue;
2359 Float_t x1,y1;
f03e3423 2360 if (isec <fTPCParam->GetNInnerSector()) {
2361 x1 = xyz[1]*fTPCParam->GetInnerPadPitchWidth();
2362 y1 = fTPCParam->GetYInner(rowNumber);
2363 }
2364 else{
2365 x1=xyz[1]*fTPCParam->GetOuterPadPitchWidth();
2366 y1 = fTPCParam->GetYOuter(rowNumber);
2367 }
e8f678d7 2368 // gain inefficiency at the wires edges - linear
f03e3423 2369 x1=TMath::Abs(x1);
e8f678d7 2370 y1-=1.;
2371 if(x1>y1) xyz[3]*=TMath::Max(1.e-6,(y1-x1+1.));
2372
73042f01 2373 nofElectrons[rowNumber]++;
8c555625 2374 //----------------------------------
2375 // Expand vector if necessary
2376 //----------------------------------
73042f01 2377 if(nofElectrons[rowNumber]>120){
2378 Int_t range = tracks[rowNumber]->GetNrows();
2379 if((nofElectrons[rowNumber])>(range-1)/4){
cc80f89e 2380
73042f01 2381 tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons
fe4da5cc 2382 }
2383 }
2384
de61d5d5 2385 AliTPCFastVector &v = *tracks[rowNumber];
73042f01 2386 Int_t idx = 4*nofElectrons[rowNumber]-3;
de61d5d5 2387 Real_t * position = &(((AliTPCFastVector&)v).UncheckedAt(idx)); //make code faster
2388 memcpy(position,xyz,4*sizeof(Float_t));
2389
8c555625 2390 } // end of loop over electrons
39c8eb58 2391
2392 tpcHit = (AliTPChit*)NextHit();
8c555625 2393
2394 } // end of loop over hits
2395 } // end of loop over tracks
2396
2397 //
2398 // store remaining track (the last one) if not empty
2399 //
2400
b584c7dd 2401 for(i=0;i<nrows+2;i++){
73042f01 2402 if(nofElectrons[i]>0){
de61d5d5 2403 AliTPCFastVector &v = *tracks[i];
8c555625 2404 v(0) = previousTrack;
73042f01 2405 tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary
cc80f89e 2406 row[i]->Add(tracks[i]);
fe4da5cc 2407 }
2408 else{
cc80f89e 2409 delete tracks[i];
2410 tracks[i]=0;
8c555625 2411 }
2412 }
2413
cc80f89e 2414 delete [] tracks;
73042f01 2415 delete [] nofElectrons;
8c555625 2416
8c555625 2417
cc80f89e 2418} // end of MakeSector
8c555625 2419
fe4da5cc 2420
2421//_____________________________________________________________________________
2422void AliTPC::Init()
2423{
2424 //
2425 // Initialise TPC detector after definition of geometry
2426 //
2427 Int_t i;
2428 //
9e1a0ddb 2429 if(fDebug) {
2430 printf("\n%s: ",ClassName());
2431 for(i=0;i<35;i++) printf("*");
2432 printf(" TPC_INIT ");
2433 for(i=0;i<35;i++) printf("*");
2434 printf("\n%s: ",ClassName());
2435 //
2436 for(i=0;i<80;i++) printf("*");
2437 printf("\n");
2438 }
fe4da5cc 2439}
2440
2441//_____________________________________________________________________________
9e1a0ddb 2442void AliTPC::MakeBranch(Option_t* option, const char *file)
fe4da5cc 2443{
2444 //
2445 // Create Tree branches for the TPC.
2446 //
2447 Int_t buffersize = 4000;
2448 char branchname[10];
2449 sprintf(branchname,"%s",GetName());
2450
2ab0c725 2451 AliDetector::MakeBranch(option,file);
fe4da5cc 2452
5cf7bbad 2453 const char *d = strstr(option,"D");
fe4da5cc 2454
73042f01 2455 if (fDigits && gAlice->TreeD() && d) {
9e1a0ddb 2456 MakeBranchInTree(gAlice->TreeD(),
2457 branchname, &fDigits, buffersize, file);
fe4da5cc 2458 }
39c8eb58 2459
792bb11c 2460 if (fHitType>1) MakeBranch2(option,file); // MI change 14.09.2000
fe4da5cc 2461}
2462
2463//_____________________________________________________________________________
2464void AliTPC::ResetDigits()
2465{
2466 //
2467 // Reset number of digits and the digits array for this detector
fe4da5cc 2468 //
2469 fNdigits = 0;
cc80f89e 2470 if (fDigits) fDigits->Clear();
fe4da5cc 2471}
2472
2473//_____________________________________________________________________________
2474void AliTPC::SetSecAL(Int_t sec)
2475{
8c555625 2476 //---------------------------------------------------
fe4da5cc 2477 // Activate/deactivate selection for lower sectors
8c555625 2478 //---------------------------------------------------
2479
2480 //-----------------------------------------------------------------
2481 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2482 //-----------------------------------------------------------------
2483
fe4da5cc 2484 fSecAL = sec;
2485}
2486
2487//_____________________________________________________________________________
2488void AliTPC::SetSecAU(Int_t sec)
2489{
8c555625 2490 //----------------------------------------------------
fe4da5cc 2491 // Activate/deactivate selection for upper sectors
8c555625 2492 //---------------------------------------------------
2493
2494 //-----------------------------------------------------------------
2495 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2496 //-----------------------------------------------------------------
2497
fe4da5cc 2498 fSecAU = sec;
2499}
2500
2501//_____________________________________________________________________________
2502void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6)
2503{
8c555625 2504 //----------------------------------------
fe4da5cc 2505 // Select active lower sectors
8c555625 2506 //----------------------------------------
2507
2508 //-----------------------------------------------------------------
2509 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2510 //-----------------------------------------------------------------
2511
fe4da5cc 2512 fSecLows[0] = s1;
2513 fSecLows[1] = s2;
2514 fSecLows[2] = s3;
2515 fSecLows[3] = s4;
2516 fSecLows[4] = s5;
2517 fSecLows[5] = s6;
2518}
2519
2520//_____________________________________________________________________________
2521void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6,
2522 Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10,
2523 Int_t s11 , Int_t s12)
2524{
8c555625 2525 //--------------------------------
fe4da5cc 2526 // Select active upper sectors
8c555625 2527 //--------------------------------
2528
2529 //-----------------------------------------------------------------
2530 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2531 //-----------------------------------------------------------------
2532
fe4da5cc 2533 fSecUps[0] = s1;
2534 fSecUps[1] = s2;
2535 fSecUps[2] = s3;
2536 fSecUps[3] = s4;
2537 fSecUps[4] = s5;
2538 fSecUps[5] = s6;
2539 fSecUps[6] = s7;
2540 fSecUps[7] = s8;
2541 fSecUps[8] = s9;
2542 fSecUps[9] = s10;
2543 fSecUps[10] = s11;
2544 fSecUps[11] = s12;
2545}
2546
2547//_____________________________________________________________________________
2548void AliTPC::SetSens(Int_t sens)
2549{
8c555625 2550
2551 //-------------------------------------------------------------
2552 // Activates/deactivates the sensitive strips at the center of
2553 // the pad row -- this is for the space-point resolution calculations
2554 //-------------------------------------------------------------
2555
2556 //-----------------------------------------------------------------
2557 // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl
2558 //-----------------------------------------------------------------
2559
fe4da5cc 2560 fSens = sens;
2561}
2b06d5c3 2562
4b0fdcad 2563
73042f01 2564void AliTPC::SetSide(Float_t side=0.)
4b0fdcad 2565{
73042f01 2566 // choice of the TPC side
2567
4b0fdcad 2568 fSide = side;
2569
2570}
1283eee5 2571//____________________________________________________________________________
2572void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1,
2573 Float_t p2,Float_t p3)
2574{
fe4da5cc 2575
73042f01 2576 // gax mixture definition
2577
1283eee5 2578 fNoComp = nc;
2579
2580 fMixtComp[0]=c1;
2581 fMixtComp[1]=c2;
2582 fMixtComp[2]=c3;
2583
2584 fMixtProp[0]=p1;
2585 fMixtProp[1]=p2;
2586 fMixtProp[2]=p3;
2587
2588
cc80f89e 2589}
2590//_____________________________________________________________________________
2591
2592void AliTPC::TransportElectron(Float_t *xyz, Int_t *index)
2593{
2594 //
2595 // electron transport taking into account:
2596 // 1. diffusion,
2597 // 2.ExB at the wires
2598 // 3. nonisochronity
2599 //
2600 // xyz and index must be already transformed to system 1
2601 //
2602
2603 fTPCParam->Transform1to2(xyz,index);
2604
2605 //add diffusion
2606 Float_t driftl=xyz[2];
2607 if(driftl<0.01) driftl=0.01;
2608 driftl=TMath::Sqrt(driftl);
73042f01 2609 Float_t sigT = driftl*(fTPCParam->GetDiffT());
2610 Float_t sigL = driftl*(fTPCParam->GetDiffL());
2611 xyz[0]=gRandom->Gaus(xyz[0],sigT);
2612 xyz[1]=gRandom->Gaus(xyz[1],sigT);
2613 xyz[2]=gRandom->Gaus(xyz[2],sigL);
cc80f89e 2614
2615 // ExB
2616
2617 if (fTPCParam->GetMWPCReadout()==kTRUE){
b584c7dd 2618 Float_t dx = fTPCParam->Transform2to2NearestWire(xyz,index);
cc80f89e 2619 xyz[1]+=dx*(fTPCParam->GetOmegaTau());
2620 }
b584c7dd 2621 //add nonisochronity (not implemented yet)
1283eee5 2622}
fe4da5cc 2623
fe4da5cc 2624ClassImp(AliTPCdigit)
2625
2626//_____________________________________________________________________________
2627AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits):
2628 AliDigit(tracks)
2629{
2630 //
2631 // Creates a TPC digit object
2632 //
2633 fSector = digits[0];
2634 fPadRow = digits[1];
2635 fPad = digits[2];
2636 fTime = digits[3];
2637 fSignal = digits[4];
2638}
2639
2640
2641ClassImp(AliTPChit)
2642
2643//_____________________________________________________________________________
2644AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
2645AliHit(shunt,track)
2646{
2647 //
2648 // Creates a TPC hit object
2649 //
2650 fSector = vol[0];
2651 fPadRow = vol[1];
2652 fX = hits[0];
2653 fY = hits[1];
2654 fZ = hits[2];
2655 fQ = hits[3];
2656}
2657
8c555625 2658
39c8eb58 2659//________________________________________________________________________
792bb11c 2660// Additional code because of the AliTPCTrackHitsV2
39c8eb58 2661
9e1a0ddb 2662void AliTPC::MakeBranch2(Option_t *option,const char *file)
39c8eb58 2663{
2664 //
2665 // Create a new branch in the current Root Tree
2666 // The branch of fHits is automatically split
2667 // MI change 14.09.2000
792bb11c 2668 if (fHitType<2) return;
39c8eb58 2669 char branchname[10];
2670 sprintf(branchname,"%s2",GetName());
2671 //
2672 // Get the pointer to the header
5cf7bbad 2673 const char *cH = strstr(option,"H");
39c8eb58 2674 //
792bb11c 2675 if (fTrackHits && gAlice->TreeH() && cH && fHitType&4) {
2676 // AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2677 // gAlice->TreeH(),fBufferSize,99);
2678 //TBranch * branch =
2679 gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2680 fBufferSize,99);
2681
2682 // gAlice->TreeH()->GetListOfBranches()->Add(branch);
9e1a0ddb 2683 if (GetDebug()>1)
2684 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2685 const char folder [] = "RunMC/Event/Data";
2686 if (GetDebug())
2687 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2688 Publish(folder,&fTrackHits,branchname);
2ab0c725 2689 if (file) {
2690 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2691 TDirectory *wd = gDirectory;
2692 b->SetFile(file);
2693 TIter next( b->GetListOfBranches());
2694 while ((b=(TBranch*)next())) {
9e1a0ddb 2695 b->SetFile(file);
2ab0c725 2696 }
2697 wd->cd();
9e1a0ddb 2698 if (GetDebug()>1)
2699 cout << "Diverting branch " << branchname << " to file " << file << endl;
2ab0c725 2700 }
39c8eb58 2701 }
792bb11c 2702
2703 if (fTrackHitsOld && gAlice->TreeH() && cH && fHitType&2) {
2704 AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHitsOld,
2705 gAlice->TreeH(),fBufferSize,99);
2706 //TBranch * branch = gAlice->TreeH()->Branch(branchname,"AliTPCTrackHitsV2",&fTrackHits,
2707 // fBufferSize,99);
2708
2709 gAlice->TreeH()->GetListOfBranches()->Add(branch);
2710 if (GetDebug()>1)
2711 printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname);
2712 const char folder [] = "RunMC/Event/Data";
2713 if (GetDebug())
2714 printf("%15s: Publishing %s to %s\n",ClassName(),branchname,folder);
2715 Publish(folder,&fTrackHitsOld,branchname);
2716 if (file) {
2717 TBranch *b = gAlice->TreeH()->GetBranch(branchname);
2718 TDirectory *wd = gDirectory;
2719 b->SetFile(file);
2720 TIter next( b->GetListOfBranches());
2721 while ((b=(TBranch*)next())) {
2722 b->SetFile(file);
2723 }
2724 wd->cd();
2725 if (GetDebug()>1)
2726 cout << "Diverting branch " << branchname << " to file " << file << endl;
2727 }
2728 }
39c8eb58 2729}
2730
2731void AliTPC::SetTreeAddress()
2732{
792bb11c 2733 if (fHitType<=1) AliDetector::SetTreeAddress();
2734 if (fHitType>1) SetTreeAddress2();
39c8eb58 2735}
2736
2737void AliTPC::SetTreeAddress2()
2738{
2739 //
2740 // Set branch address for the TrackHits Tree
2741 //
2742 TBranch *branch;
2743 char branchname[20];
2744 sprintf(branchname,"%s2",GetName());
2745 //
2746 // Branch address for hit tree
2747 TTree *treeH = gAlice->TreeH();
792bb11c 2748 if ((treeH)&&(fHitType&4)) {
39c8eb58 2749 branch = treeH->GetBranch(branchname);
2750 if (branch) branch->SetAddress(&fTrackHits);
2751 }
792bb11c 2752 if ((treeH)&&(fHitType&2)) {
2753 branch = treeH->GetBranch(branchname);
2754 if (branch) branch->SetAddress(&fTrackHitsOld);
2755 }
b6e0d3fe 2756 //set address to TREETR
2757 TTree *treeTR = gAlice->TreeTR();
2758 if (treeTR && fTrackReferences) {
2759 branch = treeTR->GetBranch(GetName());
2760 if (branch) branch->SetAddress(&fTrackReferences);
2761 }
2762
792bb11c 2763
39c8eb58 2764}
2765
2766void AliTPC::FinishPrimary()
2767{
792bb11c 2768 if (fTrackHits &&fHitType&4) fTrackHits->FlushHitStack();
2769 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->FlushHitStack();
39c8eb58 2770}
2771
2772
2773void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits)
2774{
2775 //
2776 // add hit to the list
39c8eb58 2777 Int_t rtrack;
2778 if (fIshunt) {
2779 int primary = gAlice->GetPrimary(track);
2ab0c725 2780 gAlice->Particle(primary)->SetBit(kKeepBit);
39c8eb58 2781 rtrack=primary;
2782 } else {
2783 rtrack=track;
2784 gAlice->FlagTrack(track);
2785 }
2786 //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1);
2787 //if (hit->fTrack!=rtrack)
2788 // cout<<"bad track number\n";
792bb11c 2789 if (fTrackHits && fHitType&4)
39c8eb58 2790 fTrackHits->AddHitKartez(vol[0],rtrack, hits[0],
2791 hits[1],hits[2],(Int_t)hits[3]);
792bb11c 2792 if (fTrackHitsOld &&fHitType&2 )
2793 fTrackHitsOld->AddHitKartez(vol[0],rtrack, hits[0],
2794 hits[1],hits[2],(Int_t)hits[3]);
2795
39c8eb58 2796}
2797
2798void AliTPC::ResetHits()
2799{
2800 if (fHitType&1) AliDetector::ResetHits();
792bb11c 2801 if (fHitType>1) ResetHits2();
39c8eb58 2802}
2803
2804void AliTPC::ResetHits2()
2805{
2806 //
2807 //reset hits
792bb11c 2808 if (fTrackHits && fHitType&4) fTrackHits->Clear();
2809 if (fTrackHitsOld && fHitType&2) fTrackHitsOld->Clear();
2810
39c8eb58 2811}
2812
2813AliHit* AliTPC::FirstHit(Int_t track)
2814{
792bb11c 2815 if (fHitType>1) return FirstHit2(track);
39c8eb58 2816 return AliDetector::FirstHit(track);
2817}
2818AliHit* AliTPC::NextHit()
2819{
792bb11c 2820 if (fHitType>1) return NextHit2();
2821
39c8eb58 2822 return AliDetector::NextHit();
2823}
2824
2825AliHit* AliTPC::FirstHit2(Int_t track)
2826{
2827 //
2828 // Initialise the hit iterator
2829 // Return the address of the first hit for track
2830 // If track>=0 the track is read from disk
2831 // while if track<0 the first hit of the current
2832 // track is returned
2833 //
2834 if(track>=0) {
2835 gAlice->ResetHits();
2836 gAlice->TreeH()->GetEvent(track);
2837 }
2838 //
792bb11c 2839 if (fTrackHits && fHitType&4) {
39c8eb58 2840 fTrackHits->First();
2841 return fTrackHits->GetHit();
2842 }
792bb11c 2843 if (fTrackHitsOld && fHitType&2) {
2844 fTrackHitsOld->First();
2845 return fTrackHitsOld->GetHit();
2846 }
2847
39c8eb58 2848 else return 0;
2849}
2850
2851AliHit* AliTPC::NextHit2()
2852{
2853 //
2854 //Return the next hit for the current track
2855
792bb11c 2856
2857 if (fTrackHitsOld && fHitType&2) {
2858 fTrackHitsOld->Next();
2859 return fTrackHitsOld->GetHit();
2860 }
39c8eb58 2861 if (fTrackHits) {
2862 fTrackHits->Next();
2863 return fTrackHits->GetHit();
2864 }
2865 else
2866 return 0;
2867}
2868
2869void AliTPC::LoadPoints(Int_t)
2870{
2871 //
2872 Int_t a = 0;
f2e8b846 2873 /* if(fHitType==1) return AliDetector::LoadPoints(a);
39c8eb58 2874 LoadPoints2(a);
f2e8b846 2875 */
2876 if(fHitType==1) AliDetector::LoadPoints(a);
2877 else LoadPoints2(a);
2878
39c8eb58 2879 // LoadPoints3(a);
2880
2881}
2882
2883
2884void AliTPC::RemapTrackHitIDs(Int_t *map)
2885{
2886 if (!fTrackHits) return;
39c8eb58 2887
792bb11c 2888 if (fTrackHitsOld && fHitType&2){
2889 AliObjectArray * arr = fTrackHitsOld->fTrackHitsInfo;
2890 for (UInt_t i=0;i<arr->GetSize();i++){
2891 AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i));
2892 info->fTrackID = map[info->fTrackID];
2893 }
2894 }
2895 if (fTrackHitsOld && fHitType&4){
2896 TClonesArray * arr = fTrackHits->GetArray();;
2897 for (Int_t i=0;i<arr->GetEntriesFast();i++){
2898 AliTrackHitsParamV2 * info = (AliTrackHitsParamV2 *)(arr->At(i));
2899 info->fTrackID = map[info->fTrackID];
2900 }
2901 }
39c8eb58 2902}
2903
792bb11c 2904Bool_t AliTPC::TrackInVolume(Int_t id,Int_t track)
2905{
2906 //return bool information - is track in given volume
2907 //load only part of the track information
2908 //return true if current track is in volume
2909 //
2910 // return kTRUE;
2911 if (fTrackHitsOld && fHitType&2) {
2912 TBranch * br = gAlice->TreeH()->GetBranch("fTrackHitsInfo");
2913 br->GetEvent(track);
2914 AliObjectArray * ar = fTrackHitsOld->fTrackHitsInfo;
2915 for (UInt_t j=0;j<ar->GetSize();j++){
2916 if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==id) return kTRUE;
2917 }
2918 }
2919
2920 if (fTrackHits && fHitType&4) {
2921 TBranch * br1 = gAlice->TreeH()->GetBranch("fVolumes");
2922 TBranch * br2 = gAlice->TreeH()->GetBranch("fNVolumes");
2923 br2->GetEvent(track);
2924 br1->GetEvent(track);
2925 Int_t *volumes = fTrackHits->GetVolumes();
2926 Int_t nvolumes = fTrackHits->GetNVolumes();
2927 if (!volumes && nvolumes>0) {
2928 printf("Problematic track\t%d\t%d",track,nvolumes);
2929 return kFALSE;
2930 }
2931 for (Int_t j=0;j<nvolumes; j++)
2932 if (volumes[j]==id) return kTRUE;
2933 }
2934
2935 if (fHitType&1) {
2936 TBranch * br = gAlice->TreeH()->GetBranch("fSector");
2937 br->GetEvent(track);
2938 for (Int_t j=0;j<fHits->GetEntriesFast();j++){
2939 if ( ((AliTPChit*)fHits->At(j))->fSector==id) return kTRUE;
2940 }
2941 }
2942 return kFALSE;
2943
2944}
39c8eb58 2945
2946//_____________________________________________________________________________
2947void AliTPC::LoadPoints2(Int_t)
2948{
2949 //
2950 // Store x, y, z of all hits in memory
2951 //
792bb11c 2952 if (fTrackHits == 0 && fTrackHitsOld==0) return;
39c8eb58 2953 //
792bb11c 2954 Int_t nhits =0;
2955 if (fHitType&4) nhits = fTrackHits->GetEntriesFast();
2956 if (fHitType&2) nhits = fTrackHitsOld->GetEntriesFast();
2957
39c8eb58 2958 if (nhits == 0) return;
2959 Int_t tracks = gAlice->GetNtrack();
2960 if (fPoints == 0) fPoints = new TObjArray(tracks);
2961 AliHit *ahit;
2962 //
2963 Int_t *ntrk=new Int_t[tracks];
2964 Int_t *limi=new Int_t[tracks];
2965 Float_t **coor=new Float_t*[tracks];
2966 for(Int_t i=0;i<tracks;i++) {
2967 ntrk[i]=0;
2968 coor[i]=0;
2969 limi[i]=0;
2970 }
2971 //
2972 AliPoints *points = 0;
2973 Float_t *fp=0;
2974 Int_t trk;
2975 Int_t chunk=nhits/4+1;
2976 //
2977 // Loop over all the hits and store their position
2978 //
2979 ahit = FirstHit2(-1);
39c8eb58 2980 while (ahit){
39c8eb58 2981 trk=ahit->GetTrack();
2982 if(ntrk[trk]==limi[trk]) {
2983 //
2984 // Initialise a new track
2985 fp=new Float_t[3*(limi[trk]+chunk)];
2986 if(coor[trk]) {
2987 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
2988 delete [] coor[trk];
2989 }
2990 limi[trk]+=chunk;
2991 coor[trk] = fp;
2992 } else {
2993 fp = coor[trk];
2994 }
2995 fp[3*ntrk[trk] ] = ahit->X();
2996 fp[3*ntrk[trk]+1] = ahit->Y();
2997 fp[3*ntrk[trk]+2] = ahit->Z();
2998 ntrk[trk]++;
2999 ahit = NextHit2();
3000 }
792bb11c 3001
3002
3003
39c8eb58 3004 //
3005 for(trk=0; trk<tracks; ++trk) {
3006 if(ntrk[trk]) {
3007 points = new AliPoints();
3008 points->SetMarkerColor(GetMarkerColor());
3009 points->SetMarkerSize(GetMarkerSize());
3010 points->SetDetector(this);
3011 points->SetParticle(trk);
3012 points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle());
3013 fPoints->AddAt(points,trk);
3014 delete [] coor[trk];
3015 coor[trk]=0;
3016 }
3017 }
3018 delete [] coor;
3019 delete [] ntrk;
3020 delete [] limi;
3021}
3022
3023
3024//_____________________________________________________________________________
3025void AliTPC::LoadPoints3(Int_t)
3026{
3027 //
3028 // Store x, y, z of all hits in memory
3029 // - only intersection point with pad row
3030 if (fTrackHits == 0) return;
3031 //
3032 Int_t nhits = fTrackHits->GetEntriesFast();
3033 if (nhits == 0) return;
3034 Int_t tracks = gAlice->GetNtrack();
3035 if (fPoints == 0) fPoints = new TObjArray(2*tracks);
3036 fPoints->Expand(2*tracks);
3037 AliHit *ahit;
3038 //
3039 Int_t *ntrk=new Int_t[tracks];
3040 Int_t *limi=new Int_t[tracks];
3041 Float_t **coor=new Float_t*[tracks];
3042 for(Int_t i=0;i<tracks;i++) {
3043 ntrk[i]=0;
3044 coor[i]=0;
3045 limi[i]=0;
3046 }
3047 //
3048 AliPoints *points = 0;
3049 Float_t *fp=0;
3050 Int_t trk;
3051 Int_t chunk=nhits/4+1;
3052 //
3053 // Loop over all the hits and store their position
3054 //
3055 ahit = FirstHit2(-1);
3056 //for (Int_t hit=0;hit<nhits;hit++) {
3057
3058 Int_t lastrow = -1;
3059 while (ahit){
3060 // ahit = (AliHit*)fHits->UncheckedAt(hit);
3061 trk=ahit->GetTrack();
3062 Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()};
3063 Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0};
3064 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
3065 if (currentrow!=lastrow){
3066 lastrow = currentrow;
3067 //later calculate intersection point
3068 if(ntrk[trk]==limi[trk]) {
3069 //
3070 // Initialise a new track
3071 fp=new Float_t[3*(limi[trk]+chunk)];
3072 if(coor[trk]) {
3073 memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]);
3074 delete [] coor[trk];
3075 }
3076 limi[trk]+=chunk;
3077 coor[trk] = fp;
3078 } else {
3079 fp = coor[trk];
3080 }
3081 fp[3*ntrk[trk] ] = ahit->X();
3082 fp[3*ntrk[trk]+1] = ahit->Y();
3083 fp[3*ntrk[trk]+2] = ahit->Z();
3084 ntrk[trk]++;
3085 }
3086 ahit = NextHit2();
3087 }
3088
3089 //
3090 for(trk=0; trk<tracks; ++trk) {
3091 if(ntrk[trk]) {
3092 points = new AliPoints();
3093 points->SetMarkerColor(GetMarkerColor()+1);
3094 points->SetMarkerStyle(5);
3095 points->SetMarkerSize(0.2);
3096 points->SetDetector(this);
3097 points->SetParticle(trk);
3098 // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20);
3099 points->SetPolyMarker(ntrk[trk],coor[trk],30);
3100 fPoints->AddAt(points,tracks+trk);
3101 delete [] coor[trk];
3102 coor[trk]=0;
3103 }
3104 }
3105 delete [] coor;
3106 delete [] ntrk;
3107 delete [] limi;
3108}
3109
3110
3111
3112void AliTPC::FindTrackHitsIntersection(TClonesArray * arr)
3113{
3114
3115 //
3116 //fill clones array with intersection of current point with the
3117 //middle of the row
3118 Int_t sector;
3119 Int_t ipart;
3120
3121 const Int_t kcmaxhits=30000;
de61d5d5 3122 AliTPCFastVector * xxxx = new AliTPCFastVector(kcmaxhits*4);
3123 AliTPCFastVector & xxx = *xxxx;
39c8eb58 3124 Int_t maxhits = kcmaxhits;
3125
3126 //
3127 AliTPChit * tpcHit=0;
3128 tpcHit = (AliTPChit*)FirstHit2(-1);
3129 Int_t currentIndex=0;
3130 Int_t lastrow=-1; //last writen row
3131
3132 while (tpcHit){
3133 if (tpcHit==0) continue;
3134 sector=tpcHit->fSector; // sector number
3135 ipart=tpcHit->Track();
3136
3137 //find row number
3138
3139 Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()};
3140 Int_t index[3]={1,sector,0};
3141 Int_t currentrow = fTPCParam->GetPadRow(x,index) ;
3142 if (currentrow<0) continue;
3143 if (lastrow<0) lastrow=currentrow;
3144 if (currentrow==lastrow){
3145 if ( currentIndex>=maxhits){
3146 maxhits+=kcmaxhits;
3147 xxx.ResizeTo(4*maxhits);
3148 }
3149 xxx(currentIndex*4)=x[0];
3150 xxx(currentIndex*4+1)=x[1];
3151 xxx(currentIndex*4+2)=x[2];
3152 xxx(currentIndex*4+3)=tpcHit->fQ;
3153 currentIndex++;
3154 }
3155 else
3156 if (currentIndex>2){
3157 Float_t sumx=0;
3158 Float_t sumx2=0;
3159 Float_t sumx3=0;
3160 Float_t sumx4=0;
3161 Float_t sumy=0;
3162 Float_t sumxy=0;
3163 Float_t sumx2y=0;
3164 Float_t sumz=0;
3165 Float_t sumxz=0;
3166 Float_t sumx2z=0;
3167 Float_t sumq=0;
3168 for (Int_t index=0;index<currentIndex;index++){
3169 Float_t x,x2,x3,x4;
3170 x=x2=x3=x4=xxx(index*4);
3171 x2*=x;
3172 x3*=x2;
3173 x4*=x3;
3174 sumx+=x;
3175 sumx2+=x2;
3176 sumx3+=x3;
3177 sumx4+=x4;
3178 sumy+=xxx(index*4+1);
3179 sumxy+=xxx(index*4+1)*x;
3180 sumx2y+=xxx(index*4+1)*x2;
3181 sumz+=xxx(index*4+2);
3182 sumxz+=xxx(index*4+2)*x;
3183 sumx2z+=xxx(index*4+2)*x2;
3184 sumq+=xxx(index*4+3);
3185 }
3186 Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2;
3187 Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+
3188 sumx2*(sumx*sumx3-sumx2*sumx2);
3189
3190 Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+
3191 sumx2*(sumxy*sumx3-sumx2y*sumx2);
3192 Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+
3193 sumx2*(sumxz*sumx3-sumx2z*sumx2);
3194
3195 Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+
3196 sumx2*(sumx*sumx2y-sumx2*sumxy);
3197 Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+
3198 sumx2*(sumx*sumx2z-sumx2*sumxz);
3199
3200 Float_t y=detay/det+centralPad;
3201 Float_t z=detaz/det;
3202 Float_t by=detby/det; //y angle
3203 Float_t bz=detbz/det; //z angle
3204 sumy/=Float_t(currentIndex);
3205 sumz/=Float_t(currentIndex);
3206
3207 AliComplexCluster cl;
3208 cl.fX=z;
3209 cl.fY=y;
3210 cl.fQ=sumq;
3211 cl.fSigmaX2=bz;
3212 cl.fSigmaY2=by;
3213 cl.fTracks[0]=ipart;
3214
3215 AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow));
3216 if (row!=0) row->InsertCluster(&cl);
3217 currentIndex=0;
3218 lastrow=currentrow;
3219 } //end of calculating cluster for given row
3220
3221 } // end of loop over hits
3222 xxxx->Delete();
39c8eb58 3223
3224}
afc42102 3225//_______________________________________________________________________________
a62d28a2 3226void AliTPC::Digits2Reco(Int_t firstevent,Int_t lastevent)
afc42102 3227{
a62d28a2 3228 // produces rec points from digits and writes them on the root file
3229 // AliTPCclusters.root
3230
3231 TDirectory *cwd = gDirectory;
3232
3233
7a09f434 3234 AliTPCParamSR *dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60");
3235 if(dig){
3236 printf("You are running 2 pad-length geom hits with 3 pad-length geom digits\n");
3237 delete dig;
3238 dig = new AliTPCParamSR();
3239 }
3240 else
3241 {
3242 dig=(AliTPCParamSR *)gDirectory->Get("75x40_100x60_150x60");
3243 }
3244 if(!dig){
3245 printf("No TPC parameters found\n");
3246 exit(3);
3247 }
3248
a62d28a2 3249 SetParam(dig);
3250 cout<<"AliTPC::Digits2Reco: TPC parameteres have been set"<<endl;
3251 TFile *out;
3252 if(!gSystem->Getenv("CONFIG_FILE")){
3253 out=TFile::Open("AliTPCclusters.root","recreate");
3254 }
3255 else {
3256 const char *tmp1;
3257 const char *tmp2;
3258 char tmp3[80];
3259 tmp1=gSystem->Getenv("CONFIG_FILE_PREFIX");
3260 tmp2=gSystem->Getenv("CONFIG_OUTDIR");
3261 sprintf(tmp3,"%s%s/AliTPCclusters.root",tmp1,tmp2);
3262 out=TFile::Open(tmp3,"recreate");
3263 }
3264
3265 TStopwatch timer;
3266 cout<<"AliTPC::Digits2Reco - determination of rec points begins"<<endl;
3267 timer.Start();
3268 cwd->cd();
3269 for(Int_t iev=firstevent;iev<lastevent+1;iev++){
3270
3271 printf("Processing event %d\n",iev);
3272 Digits2Clusters(out,iev);
3273 }
3274 cout<<"AliTPC::Digits2Reco - determination of rec points ended"<<endl;
3275 timer.Stop();
3276 timer.Print();
3277 out->Close();
3278 cwd->cd();
3279
3280
afc42102 3281}