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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 | $Log$ | |
39c8eb58 | 18 | Revision 1.24 2000/10/05 16:06:09 kowal2 |
19 | Forward declarations. Changes due to a new class AliComplexCluster. | |
20 | ||
2b06d5c3 | 21 | Revision 1.23 2000/10/02 21:28:18 fca |
22 | Removal of useless dependecies via forward declarations | |
23 | ||
94de3818 | 24 | Revision 1.22 2000/07/10 20:57:39 hristov |
25 | Update of TPC code and macros by M.Kowalski | |
26 | ||
73042f01 | 27 | Revision 1.19.2.4 2000/06/26 07:39:42 kowal2 |
28 | Changes to obey the coding rules | |
29 | ||
30 | Revision 1.19.2.3 2000/06/25 08:38:41 kowal2 | |
31 | Splitted from AliTPCtracking | |
32 | ||
33 | Revision 1.19.2.2 2000/06/16 12:59:28 kowal2 | |
34 | Changed parameter settings | |
35 | ||
36 | Revision 1.19.2.1 2000/06/09 07:15:07 kowal2 | |
37 | ||
38 | Defaults loaded automatically (hard-wired) | |
39 | Optional parameters can be set via macro called in the constructor | |
40 | ||
41 | Revision 1.19 2000/04/18 19:00:59 fca | |
42 | Small bug fixes to TPC files | |
43 | ||
4d68a14a | 44 | Revision 1.18 2000/04/17 09:37:33 kowal2 |
45 | removed obsolete AliTPCDigitsDisplay.C | |
46 | ||
cc80f89e | 47 | Revision 1.17.2.2 2000/04/10 08:15:12 kowal2 |
48 | ||
49 | New, experimental data structure from M. Ivanov | |
50 | New tracking algorithm | |
51 | Different pad geometry for different sectors | |
52 | Digitization rewritten | |
53 | ||
54 | Revision 1.17.2.1 2000/04/10 07:56:53 kowal2 | |
55 | Not used anymore - removed | |
56 | ||
57 | Revision 1.17 2000/01/19 17:17:30 fca | |
58 | Introducing a list of lists of hits -- more hits allowed for detector now | |
59 | ||
1cedd08a | 60 | Revision 1.16 1999/11/05 09:29:23 fca |
61 | Accept only signals > 0 | |
62 | ||
921bf71a | 63 | Revision 1.15 1999/10/08 06:26:53 fca |
64 | Removed ClustersIndex - not used anymore | |
65 | ||
e674b993 | 66 | Revision 1.14 1999/09/29 09:24:33 fca |
67 | Introduction of the Copyright and cvs Log | |
68 | ||
4c039060 | 69 | */ |
70 | ||
fe4da5cc | 71 | /////////////////////////////////////////////////////////////////////////////// |
72 | // // | |
73 | // Time Projection Chamber // | |
74 | // This class contains the basic functions for the Time Projection Chamber // | |
75 | // detector. Functions specific to one particular geometry are // | |
76 | // contained in the derived classes // | |
77 | // // | |
78 | //Begin_Html | |
79 | /* | |
1439f98e | 80 | <img src="picts/AliTPCClass.gif"> |
fe4da5cc | 81 | */ |
82 | //End_Html | |
83 | // // | |
8c555625 | 84 | // // |
fe4da5cc | 85 | /////////////////////////////////////////////////////////////////////////////// |
86 | ||
73042f01 | 87 | // |
88 | ||
fe4da5cc | 89 | #include <TMath.h> |
90 | #include <TRandom.h> | |
91 | #include <TVector.h> | |
8c555625 | 92 | #include <TMatrix.h> |
fe4da5cc | 93 | #include <TGeometry.h> |
94 | #include <TNode.h> | |
95 | #include <TTUBS.h> | |
96 | #include <TObjectTable.h> | |
1578254f | 97 | #include "TParticle.h" |
fe4da5cc | 98 | #include "AliTPC.h" |
73042f01 | 99 | #include <TFile.h> |
fe4da5cc | 100 | #include "AliRun.h" |
101 | #include <iostream.h> | |
102 | #include <fstream.h> | |
103 | #include "AliMC.h" | |
94de3818 | 104 | #include "AliMagF.h" |
fe4da5cc | 105 | |
cc80f89e | 106 | |
73042f01 | 107 | #include "AliTPCParamSR.h" |
8c555625 | 108 | #include "AliTPCPRF2D.h" |
109 | #include "AliTPCRF1D.h" | |
cc80f89e | 110 | #include "AliDigits.h" |
111 | #include "AliSimDigits.h" | |
39c8eb58 | 112 | #include "AliTPCTrackHits.h" |
113 | #include "AliPoints.h" | |
114 | #include "AliArrayBranch.h" | |
115 | ||
cc80f89e | 116 | |
117 | #include "AliTPCDigitsArray.h" | |
2b06d5c3 | 118 | #include "AliComplexCluster.h" |
cc80f89e | 119 | #include "AliClusters.h" |
120 | #include "AliTPCClustersRow.h" | |
121 | #include "AliTPCClustersArray.h" | |
8c555625 | 122 | |
73042f01 | 123 | #include "AliTPCcluster.h" |
124 | #include "AliTPCclusterer.h" | |
125 | #include "AliTPCtracker.h" | |
8c555625 | 126 | |
73042f01 | 127 | #include <TInterpreter.h> |
2b06d5c3 | 128 | #include <TTree.h> |
1283eee5 | 129 | |
39c8eb58 | 130 | |
131 | ||
fe4da5cc | 132 | ClassImp(AliTPC) |
133 | ||
134 | //_____________________________________________________________________________ | |
135 | AliTPC::AliTPC() | |
136 | { | |
137 | // | |
138 | // Default constructor | |
139 | // | |
140 | fIshunt = 0; | |
fe4da5cc | 141 | fHits = 0; |
142 | fDigits = 0; | |
fe4da5cc | 143 | fNsectors = 0; |
cc80f89e | 144 | //MI changes |
145 | fDigitsArray = 0; | |
146 | fClustersArray = 0; | |
73042f01 | 147 | fTPCParam=0; |
39c8eb58 | 148 | fTrackHits = 0; |
149 | fHitType = 2; | |
150 | fTPCParam = 0; | |
fe4da5cc | 151 | } |
152 | ||
153 | //_____________________________________________________________________________ | |
154 | AliTPC::AliTPC(const char *name, const char *title) | |
155 | : AliDetector(name,title) | |
156 | { | |
157 | // | |
158 | // Standard constructor | |
159 | // | |
160 | ||
161 | // | |
162 | // Initialise arrays of hits and digits | |
163 | fHits = new TClonesArray("AliTPChit", 176); | |
4d68a14a | 164 | gAlice->AddHitList(fHits); |
cc80f89e | 165 | //MI change |
166 | fDigitsArray = 0; | |
167 | fClustersArray= 0; | |
fe4da5cc | 168 | // |
39c8eb58 | 169 | fTrackHits = new AliTPCTrackHits; //MI - 13.09.2000 |
170 | fTrackHits->SetHitPrecision(0.002); | |
171 | fTrackHits->SetStepPrecision(0.003); | |
172 | fTrackHits->SetMaxDistance(100); | |
173 | ||
174 | fHitType = 2; | |
175 | // | |
fe4da5cc | 176 | // Initialise counters |
cc80f89e | 177 | fNsectors = 0; |
cc80f89e | 178 | |
fe4da5cc | 179 | // |
180 | fIshunt = 0; | |
181 | // | |
182 | // Initialise color attributes | |
183 | SetMarkerColor(kYellow); | |
73042f01 | 184 | |
185 | // | |
186 | // Set TPC parameters | |
187 | // | |
188 | ||
189 | if (!strcmp(title,"Default")) { | |
190 | fTPCParam = new AliTPCParamSR; | |
191 | } else { | |
192 | cerr<<"AliTPC warning: in Config.C you must set non-default parameters\n"; | |
193 | fTPCParam=0; | |
194 | } | |
195 | ||
fe4da5cc | 196 | } |
197 | ||
198 | //_____________________________________________________________________________ | |
199 | AliTPC::~AliTPC() | |
200 | { | |
201 | // | |
202 | // TPC destructor | |
203 | // | |
73042f01 | 204 | |
fe4da5cc | 205 | fIshunt = 0; |
206 | delete fHits; | |
207 | delete fDigits; | |
73042f01 | 208 | delete fTPCParam; |
39c8eb58 | 209 | delete fTrackHits; //MI 15.09.2000 |
fe4da5cc | 210 | } |
211 | ||
fe4da5cc | 212 | //_____________________________________________________________________________ |
213 | void AliTPC::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
214 | { | |
215 | // | |
216 | // Add a hit to the list | |
217 | // | |
39c8eb58 | 218 | // TClonesArray &lhits = *fHits; |
219 | // new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits); | |
220 | if (fHitType&1){ | |
221 | TClonesArray &lhits = *fHits; | |
222 | new(lhits[fNhits++]) AliTPChit(fIshunt,track,vol,hits); | |
223 | } | |
224 | if (fHitType&2) | |
225 | AddHit2(track,vol,hits); | |
fe4da5cc | 226 | } |
227 | ||
fe4da5cc | 228 | //_____________________________________________________________________________ |
229 | void AliTPC::BuildGeometry() | |
230 | { | |
cc80f89e | 231 | |
fe4da5cc | 232 | // |
233 | // Build TPC ROOT TNode geometry for the event display | |
234 | // | |
73042f01 | 235 | TNode *nNode, *nTop; |
fe4da5cc | 236 | TTUBS *tubs; |
237 | Int_t i; | |
238 | const int kColorTPC=19; | |
1283eee5 | 239 | char name[5], title[25]; |
fe4da5cc | 240 | const Double_t kDegrad=TMath::Pi()/180; |
1283eee5 | 241 | const Double_t kRaddeg=180./TMath::Pi(); |
242 | ||
1283eee5 | 243 | |
73042f01 | 244 | Float_t innerOpenAngle = fTPCParam->GetInnerAngle(); |
245 | Float_t outerOpenAngle = fTPCParam->GetOuterAngle(); | |
1283eee5 | 246 | |
73042f01 | 247 | Float_t innerAngleShift = fTPCParam->GetInnerAngleShift(); |
248 | Float_t outerAngleShift = fTPCParam->GetOuterAngleShift(); | |
1283eee5 | 249 | |
250 | Int_t nLo = fTPCParam->GetNInnerSector()/2; | |
251 | Int_t nHi = fTPCParam->GetNOuterSector()/2; | |
252 | ||
73042f01 | 253 | const Double_t kloAng = (Double_t)TMath::Nint(innerOpenAngle*kRaddeg); |
254 | const Double_t khiAng = (Double_t)TMath::Nint(outerOpenAngle*kRaddeg); | |
255 | const Double_t kloAngSh = (Double_t)TMath::Nint(innerAngleShift*kRaddeg); | |
256 | const Double_t khiAngSh = (Double_t)TMath::Nint(outerAngleShift*kRaddeg); | |
1283eee5 | 257 | |
258 | ||
73042f01 | 259 | const Double_t kloCorr = 1/TMath::Cos(0.5*kloAng*kDegrad); |
260 | const Double_t khiCorr = 1/TMath::Cos(0.5*khiAng*kDegrad); | |
1283eee5 | 261 | |
262 | Double_t rl,ru; | |
263 | ||
264 | ||
fe4da5cc | 265 | // |
266 | // Get ALICE top node | |
fe4da5cc | 267 | // |
1283eee5 | 268 | |
73042f01 | 269 | nTop=gAlice->GetGeometry()->GetNode("alice"); |
1283eee5 | 270 | |
271 | // inner sectors | |
272 | ||
cc80f89e | 273 | rl = fTPCParam->GetInnerRadiusLow(); |
274 | ru = fTPCParam->GetInnerRadiusUp(); | |
1283eee5 | 275 | |
276 | ||
fe4da5cc | 277 | for(i=0;i<nLo;i++) { |
278 | sprintf(name,"LS%2.2d",i); | |
1283eee5 | 279 | name[4]='\0'; |
280 | sprintf(title,"TPC low sector %3d",i); | |
281 | title[24]='\0'; | |
282 | ||
73042f01 | 283 | tubs = new TTUBS(name,title,"void",rl*kloCorr,ru*kloCorr,250., |
284 | kloAng*(i-0.5)+kloAngSh,kloAng*(i+0.5)+kloAngSh); | |
fe4da5cc | 285 | tubs->SetNumberOfDivisions(1); |
73042f01 | 286 | nTop->cd(); |
287 | nNode = new TNode(name,title,name,0,0,0,""); | |
288 | nNode->SetLineColor(kColorTPC); | |
289 | fNodes->Add(nNode); | |
fe4da5cc | 290 | } |
1283eee5 | 291 | |
fe4da5cc | 292 | // Outer sectors |
1283eee5 | 293 | |
cc80f89e | 294 | rl = fTPCParam->GetOuterRadiusLow(); |
295 | ru = fTPCParam->GetOuterRadiusUp(); | |
1283eee5 | 296 | |
fe4da5cc | 297 | for(i=0;i<nHi;i++) { |
298 | sprintf(name,"US%2.2d",i); | |
1283eee5 | 299 | name[4]='\0'; |
fe4da5cc | 300 | sprintf(title,"TPC upper sector %d",i); |
1283eee5 | 301 | title[24]='\0'; |
73042f01 | 302 | tubs = new TTUBS(name,title,"void",rl*khiCorr,ru*khiCorr,250, |
303 | khiAng*(i-0.5)+khiAngSh,khiAng*(i+0.5)+khiAngSh); | |
fe4da5cc | 304 | tubs->SetNumberOfDivisions(1); |
73042f01 | 305 | nTop->cd(); |
306 | nNode = new TNode(name,title,name,0,0,0,""); | |
307 | nNode->SetLineColor(kColorTPC); | |
308 | fNodes->Add(nNode); | |
fe4da5cc | 309 | } |
cc80f89e | 310 | |
73042f01 | 311 | } |
1283eee5 | 312 | |
fe4da5cc | 313 | //_____________________________________________________________________________ |
314 | Int_t AliTPC::DistancetoPrimitive(Int_t , Int_t ) | |
315 | { | |
316 | // | |
317 | // Calculate distance from TPC to mouse on the display | |
318 | // Dummy procedure | |
319 | // | |
320 | return 9999; | |
321 | } | |
322 | ||
73042f01 | 323 | void AliTPC::Clusters2Tracks(TFile *of) { |
3c0f9266 | 324 | //----------------------------------------------------------------- |
325 | // This is a track finder. | |
3c0f9266 | 326 | //----------------------------------------------------------------- |
73042f01 | 327 | AliTPCtracker::Clusters2Tracks(fTPCParam,of); |
fe4da5cc | 328 | } |
329 | ||
330 | //_____________________________________________________________________________ | |
331 | void AliTPC::CreateMaterials() | |
332 | { | |
8c555625 | 333 | //----------------------------------------------- |
37831078 | 334 | // Create Materials for for TPC simulations |
8c555625 | 335 | //----------------------------------------------- |
336 | ||
337 | //----------------------------------------------------------------- | |
338 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
339 | //----------------------------------------------------------------- | |
1283eee5 | 340 | |
73042f01 | 341 | Int_t iSXFLD=gAlice->Field()->Integ(); |
342 | Float_t sXMGMX=gAlice->Field()->Max(); | |
1283eee5 | 343 | |
344 | Float_t amat[5]; // atomic numbers | |
345 | Float_t zmat[5]; // z | |
346 | Float_t wmat[5]; // proportions | |
347 | ||
348 | Float_t density; | |
37831078 | 349 | Float_t apure[2]; |
1283eee5 | 350 | |
1283eee5 | 351 | |
37831078 | 352 | //***************** Gases ************************* |
353 | ||
354 | //------------------------------------------------- | |
1283eee5 | 355 | // pure gases |
37831078 | 356 | //------------------------------------------------- |
1283eee5 | 357 | |
37831078 | 358 | // Neon |
1283eee5 | 359 | |
360 | ||
37831078 | 361 | amat[0]= 20.18; |
362 | zmat[0]= 10.; | |
1283eee5 | 363 | density = 0.0009; |
37831078 | 364 | |
365 | apure[0]=amat[0]; | |
1283eee5 | 366 | |
37831078 | 367 | AliMaterial(20,"Ne",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 368 | |
37831078 | 369 | // Argon |
1283eee5 | 370 | |
37831078 | 371 | amat[0]= 39.948; |
372 | zmat[0]= 18.; | |
373 | density = 0.001782; | |
1283eee5 | 374 | |
37831078 | 375 | apure[1]=amat[0]; |
1283eee5 | 376 | |
37831078 | 377 | AliMaterial(21,"Ar",amat[0],zmat[0],density,999.,999.); |
378 | ||
1283eee5 | 379 | |
380 | //-------------------------------------------------------------- | |
381 | // gases - compounds | |
382 | //-------------------------------------------------------------- | |
383 | ||
384 | Float_t amol[3]; | |
385 | ||
37831078 | 386 | // CO2 |
1283eee5 | 387 | |
388 | amat[0]=12.011; | |
389 | amat[1]=15.9994; | |
390 | ||
391 | zmat[0]=6.; | |
392 | zmat[1]=8.; | |
393 | ||
394 | wmat[0]=1.; | |
395 | wmat[1]=2.; | |
396 | ||
397 | density=0.001977; | |
398 | ||
399 | amol[0] = amat[0]*wmat[0]+amat[1]*wmat[1]; | |
400 | ||
401 | AliMixture(10,"CO2",amat,zmat,density,-2,wmat); | |
37831078 | 402 | |
1283eee5 | 403 | // CF4 |
404 | ||
405 | amat[0]=12.011; | |
406 | amat[1]=18.998; | |
407 | ||
408 | zmat[0]=6.; | |
409 | zmat[1]=9.; | |
410 | ||
411 | wmat[0]=1.; | |
412 | wmat[1]=4.; | |
413 | ||
414 | density=0.003034; | |
415 | ||
416 | amol[1] = amat[0]*wmat[0]+amat[1]*wmat[1]; | |
417 | ||
418 | AliMixture(11,"CF4",amat,zmat,density,-2,wmat); | |
419 | ||
37831078 | 420 | |
1283eee5 | 421 | // CH4 |
422 | ||
423 | amat[0]=12.011; | |
424 | amat[1]=1.; | |
425 | ||
426 | zmat[0]=6.; | |
427 | zmat[1]=1.; | |
428 | ||
429 | wmat[0]=1.; | |
430 | wmat[1]=4.; | |
431 | ||
432 | density=0.000717; | |
433 | ||
434 | amol[2] = amat[0]*wmat[0]+amat[1]*wmat[1]; | |
435 | ||
436 | AliMixture(12,"CH4",amat,zmat,density,-2,wmat); | |
437 | ||
438 | //---------------------------------------------------------------- | |
439 | // gases - mixtures, ID >= 20 pure gases, <= 10 ID < 20 -compounds | |
440 | //---------------------------------------------------------------- | |
37831078 | 441 | |
442 | char namate[21]; | |
1283eee5 | 443 | density = 0.; |
444 | Float_t am=0; | |
445 | Int_t nc; | |
37831078 | 446 | Float_t rho,absl,X0,buf[1]; |
1283eee5 | 447 | Int_t nbuf; |
37831078 | 448 | Float_t a,z; |
1283eee5 | 449 | |
450 | for(nc = 0;nc<fNoComp;nc++) | |
451 | { | |
452 | ||
453 | // retrive material constants | |
454 | ||
37831078 | 455 | gMC->Gfmate((*fIdmate)[fMixtComp[nc]],namate,a,z,rho,X0,absl,buf,nbuf); |
1283eee5 | 456 | |
457 | amat[nc] = a; | |
458 | zmat[nc] = z; | |
459 | ||
460 | Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10; | |
461 | ||
37831078 | 462 | am += fMixtProp[nc]*((fMixtComp[nc]>=20) ? apure[nnc] : amol[nnc]); |
1283eee5 | 463 | density += fMixtProp[nc]*rho; // density of the mixture |
464 | ||
465 | } | |
466 | ||
467 | // mixture proportions by weight! | |
468 | ||
469 | for(nc = 0;nc<fNoComp;nc++) | |
470 | { | |
471 | ||
472 | Int_t nnc = (fMixtComp[nc]>=20) ? fMixtComp[nc]%20 : fMixtComp[nc]%10; | |
473 | ||
37831078 | 474 | wmat[nc] = fMixtProp[nc]*((fMixtComp[nc]>=20) ? |
475 | apure[nnc] : amol[nnc])/am; | |
476 | ||
477 | } | |
478 | ||
479 | // Drift gases 1 - nonsensitive, 2 - sensitive | |
1283eee5 | 480 | |
1283eee5 | 481 | AliMixture(31,"Drift gas 1",amat,zmat,density,fNoComp,wmat); |
482 | AliMixture(32,"Drift gas 2",amat,zmat,density,fNoComp,wmat); | |
1283eee5 | 483 | |
1283eee5 | 484 | |
37831078 | 485 | // Air |
486 | ||
487 | amat[0] = 14.61; | |
488 | zmat[0] = 7.3; | |
489 | density = 0.001205; | |
1283eee5 | 490 | |
37831078 | 491 | AliMaterial(24,"Air",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 492 | |
1283eee5 | 493 | |
494 | //---------------------------------------------------------------------- | |
495 | // solid materials | |
496 | //---------------------------------------------------------------------- | |
497 | ||
1283eee5 | 498 | |
37831078 | 499 | // Kevlar C14H22O2N2 |
1283eee5 | 500 | |
37831078 | 501 | amat[0] = 12.011; |
502 | amat[1] = 1.; | |
503 | amat[2] = 15.999; | |
504 | amat[3] = 14.006; | |
1283eee5 | 505 | |
37831078 | 506 | zmat[0] = 6.; |
507 | zmat[1] = 1.; | |
508 | zmat[2] = 8.; | |
509 | zmat[3] = 7.; | |
510 | ||
511 | wmat[0] = 14.; | |
512 | wmat[1] = 22.; | |
513 | wmat[2] = 2.; | |
514 | wmat[3] = 2.; | |
515 | ||
516 | density = 1.45; | |
517 | ||
518 | AliMixture(34,"Kevlar",amat,zmat,density,-4,wmat); | |
519 | ||
520 | // NOMEX | |
1283eee5 | 521 | |
37831078 | 522 | amat[0] = 12.011; |
523 | amat[1] = 1.; | |
524 | amat[2] = 15.999; | |
525 | amat[3] = 14.006; | |
526 | ||
527 | zmat[0] = 6.; | |
528 | zmat[1] = 1.; | |
529 | zmat[2] = 8.; | |
530 | zmat[3] = 7.; | |
531 | ||
532 | wmat[0] = 14.; | |
533 | wmat[1] = 22.; | |
534 | wmat[2] = 2.; | |
535 | wmat[3] = 2.; | |
536 | ||
537 | density = 0.03; | |
1283eee5 | 538 | |
fe4da5cc | 539 | |
37831078 | 540 | AliMixture(35,"NOMEX",amat,zmat,density,-4,wmat); |
541 | ||
542 | // Makrolon C16H18O3 | |
543 | ||
544 | amat[0] = 12.011; | |
545 | amat[1] = 1.; | |
546 | amat[2] = 15.999; | |
1283eee5 | 547 | |
37831078 | 548 | zmat[0] = 6.; |
549 | zmat[1] = 1.; | |
550 | zmat[2] = 8.; | |
551 | ||
552 | wmat[0] = 16.; | |
553 | wmat[1] = 18.; | |
554 | wmat[2] = 3.; | |
555 | ||
556 | density = 1.2; | |
557 | ||
558 | AliMixture(36,"Makrolon",amat,zmat,density,-3,wmat); | |
559 | ||
1283eee5 | 560 | // Mylar C5H4O2 |
561 | ||
562 | amat[0]=12.011; | |
563 | amat[1]=1.; | |
564 | amat[2]=15.9994; | |
565 | ||
566 | zmat[0]=6.; | |
567 | zmat[1]=1.; | |
568 | zmat[2]=8.; | |
569 | ||
570 | wmat[0]=5.; | |
571 | wmat[1]=4.; | |
572 | wmat[2]=2.; | |
573 | ||
574 | density = 1.39; | |
fe4da5cc | 575 | |
37831078 | 576 | AliMixture(37, "Mylar",amat,zmat,density,-3,wmat); |
1283eee5 | 577 | |
37831078 | 578 | // G10 60% SiO2 + 40% epoxy, I use A and Z for SiO2 |
1283eee5 | 579 | |
37831078 | 580 | amat[0]=28.086; |
581 | amat[1]=15.9994; | |
1283eee5 | 582 | |
37831078 | 583 | zmat[0]=14.; |
584 | zmat[1]=8.; | |
1283eee5 | 585 | |
37831078 | 586 | wmat[0]=1.; |
587 | wmat[1]=2.; | |
1283eee5 | 588 | |
37831078 | 589 | density = 1.7; |
1283eee5 | 590 | |
37831078 | 591 | AliMixture(38,"SiO2",amat,zmat,2.2,-2,wmat); //SiO2 - quartz |
592 | ||
593 | gMC->Gfmate((*fIdmate)[38],namate,amat[0],zmat[0],rho,X0,absl,buf,nbuf); | |
1283eee5 | 594 | |
37831078 | 595 | AliMaterial(39,"G10",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 596 | |
37831078 | 597 | // Al |
1283eee5 | 598 | |
37831078 | 599 | amat[0] = 26.98; |
600 | zmat[0] = 13.; | |
1283eee5 | 601 | |
37831078 | 602 | density = 2.7; |
1283eee5 | 603 | |
37831078 | 604 | AliMaterial(40,"Al",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 605 | |
37831078 | 606 | // Si |
1283eee5 | 607 | |
37831078 | 608 | amat[0] = 28.086; |
609 | zmat[0] = 14., | |
1283eee5 | 610 | |
37831078 | 611 | density = 2.33; |
1283eee5 | 612 | |
37831078 | 613 | AliMaterial(41,"Si",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 614 | |
37831078 | 615 | // Cu |
1283eee5 | 616 | |
37831078 | 617 | amat[0] = 63.546; |
618 | zmat[0] = 29.; | |
1283eee5 | 619 | |
37831078 | 620 | density = 8.96; |
1283eee5 | 621 | |
37831078 | 622 | AliMaterial(42,"Cu",amat[0],zmat[0],density,999.,999.); |
1283eee5 | 623 | |
37831078 | 624 | // Tedlar C2H3F |
1283eee5 | 625 | |
37831078 | 626 | amat[0] = 12.011; |
627 | amat[1] = 1.; | |
628 | amat[2] = 18.998; | |
1283eee5 | 629 | |
37831078 | 630 | zmat[0] = 6.; |
631 | zmat[1] = 1.; | |
632 | zmat[2] = 9.; | |
1283eee5 | 633 | |
37831078 | 634 | wmat[0] = 2.; |
635 | wmat[1] = 3.; | |
636 | wmat[2] = 1.; | |
1283eee5 | 637 | |
37831078 | 638 | density = 1.71; |
1283eee5 | 639 | |
37831078 | 640 | AliMixture(43, "Tedlar",amat,zmat,density,-3,wmat); |
1283eee5 | 641 | |
1283eee5 | 642 | |
37831078 | 643 | // Plexiglas C5H8O2 |
1283eee5 | 644 | |
37831078 | 645 | amat[0]=12.011; |
646 | amat[1]=1.; | |
647 | amat[2]=15.9994; | |
1283eee5 | 648 | |
37831078 | 649 | zmat[0]=6.; |
650 | zmat[1]=1.; | |
651 | zmat[2]=8.; | |
1283eee5 | 652 | |
37831078 | 653 | wmat[0]=5.; |
654 | wmat[1]=8.; | |
655 | wmat[2]=2.; | |
1283eee5 | 656 | |
37831078 | 657 | density=1.18; |
1283eee5 | 658 | |
37831078 | 659 | AliMixture(44,"Plexiglas",amat,zmat,density,-3,wmat); |
1283eee5 | 660 | |
1283eee5 | 661 | |
37831078 | 662 | |
663 | //---------------------------------------------------------- | |
664 | // tracking media for gases | |
665 | //---------------------------------------------------------- | |
666 | ||
667 | AliMedium(0, "Air", 24, 0, iSXFLD, sXMGMX, 10., 999., .1, .01, .1); | |
668 | AliMedium(1, "Drift gas 1", 31, 0, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001); | |
669 | AliMedium(2, "Drift gas 2", 32, 1, iSXFLD, sXMGMX, 10., 999.,.1,.001, .001); | |
670 | AliMedium(3,"CO2",10,0, iSXFLD, sXMGMX, 10., 999.,.1, .001, .001); | |
671 | ||
672 | //----------------------------------------------------------- | |
673 | // tracking media for solids | |
674 | //----------------------------------------------------------- | |
675 | ||
676 | AliMedium(4,"Al",40,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001); | |
677 | AliMedium(5,"Kevlar",34,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001); | |
678 | AliMedium(6,"Nomex",35,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
679 | AliMedium(7,"Makrolon",36,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
680 | AliMedium(8,"Mylar",37,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001); | |
681 | AliMedium(9,"Tedlar",43,0, iSXFLD, sXMGMX, 10., 999., .1, .0005, .001); | |
682 | AliMedium(10,"Cu",42,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
683 | AliMedium(11,"Si",41,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
684 | AliMedium(12,"G10",39,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
685 | AliMedium(13,"Plexiglas",44,0, iSXFLD, sXMGMX, 10., 999., .1, .001, .001); | |
1283eee5 | 686 | |
fe4da5cc | 687 | } |
688 | ||
fe4da5cc | 689 | |
73042f01 | 690 | void AliTPC::Digits2Clusters(TFile *of) |
fe4da5cc | 691 | { |
3c0f9266 | 692 | //----------------------------------------------------------------- |
693 | // This is a simple cluster finder. | |
3c0f9266 | 694 | //----------------------------------------------------------------- |
73042f01 | 695 | AliTPCclusterer::Digits2Clusters(fTPCParam,of); |
fe4da5cc | 696 | } |
697 | ||
73042f01 | 698 | extern Double_t SigmaY2(Double_t, Double_t, Double_t); |
699 | extern Double_t SigmaZ2(Double_t, Double_t); | |
fe4da5cc | 700 | //_____________________________________________________________________________ |
73042f01 | 701 | void AliTPC::Hits2Clusters(TFile *of) |
fe4da5cc | 702 | { |
8c555625 | 703 | //-------------------------------------------------------- |
fe4da5cc | 704 | // TPC simple cluster generator from hits |
705 | // obtained from the TPC Fast Simulator | |
8c555625 | 706 | // The point errors are taken from the parametrization |
707 | //-------------------------------------------------------- | |
708 | ||
709 | //----------------------------------------------------------------- | |
710 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
711 | //----------------------------------------------------------------- | |
73042f01 | 712 | // Adopted to Marian's cluster data structure by I.Belikov, CERN, |
713 | // Jouri.Belikov@cern.ch | |
714 | //---------------------------------------------------------------- | |
715 | ||
716 | ///////////////////////////////////////////////////////////////////////////// | |
717 | // | |
718 | //--------------------------------------------------------------------- | |
719 | // ALICE TPC Cluster Parameters | |
720 | //-------------------------------------------------------------------- | |
721 | ||
722 | ||
723 | ||
724 | // Cluster width in rphi | |
725 | const Float_t kACrphi=0.18322; | |
726 | const Float_t kBCrphi=0.59551e-3; | |
727 | const Float_t kCCrphi=0.60952e-1; | |
728 | // Cluster width in z | |
729 | const Float_t kACz=0.19081; | |
730 | const Float_t kBCz=0.55938e-3; | |
731 | const Float_t kCCz=0.30428; | |
732 | ||
733 | TDirectory *savedir=gDirectory; | |
734 | ||
735 | if (!of->IsOpen()) { | |
736 | cerr<<"AliTPC::Hits2Clusters(): output file not open !\n"; | |
737 | return; | |
738 | } | |
3c0f9266 | 739 | |
cc80f89e | 740 | if(fTPCParam == 0){ |
741 | printf("AliTPCParam MUST be created firstly\n"); | |
742 | return; | |
743 | } | |
744 | ||
73042f01 | 745 | Float_t sigmaRphi,sigmaZ,clRphi,clZ; |
fe4da5cc | 746 | // |
1578254f | 747 | TParticle *particle; // pointer to a given particle |
fe4da5cc | 748 | AliTPChit *tpcHit; // pointer to a sigle TPC hit |
73042f01 | 749 | TClonesArray *particles; //pointer to the particle list |
39c8eb58 | 750 | Int_t sector; |
fe4da5cc | 751 | Int_t ipart; |
752 | Float_t xyz[5]; | |
753 | Float_t pl,pt,tanth,rpad,ratio; | |
fe4da5cc | 754 | Float_t cph,sph; |
755 | ||
756 | //--------------------------------------------------------------- | |
757 | // Get the access to the tracks | |
758 | //--------------------------------------------------------------- | |
759 | ||
73042f01 | 760 | TTree *tH = gAlice->TreeH(); |
761 | Stat_t ntracks = tH->GetEntries(); | |
762 | particles=gAlice->Particles(); | |
763 | ||
764 | //Switch to the output file | |
765 | of->cd(); | |
766 | ||
767 | fTPCParam->Write(fTPCParam->GetTitle()); | |
768 | AliTPCClustersArray carray; | |
769 | carray.Setup(fTPCParam); | |
770 | carray.SetClusterType("AliTPCcluster"); | |
771 | carray.MakeTree(); | |
772 | ||
773 | Int_t nclusters=0; //cluster counter | |
fe4da5cc | 774 | |
775 | //------------------------------------------------------------ | |
cc80f89e | 776 | // Loop over all sectors (72 sectors for 20 deg |
777 | // segmentation for both lower and upper sectors) | |
778 | // Sectors 0-35 are lower sectors, 0-17 z>0, 17-35 z<0 | |
3c0f9266 | 779 | // Sectors 36-71 are upper sectors, 36-53 z>0, 54-71 z<0 |
fe4da5cc | 780 | // |
3c0f9266 | 781 | // First cluster for sector 0 starts at "0" |
fe4da5cc | 782 | //------------------------------------------------------------ |
cc80f89e | 783 | |
784 | for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++){ | |
8c555625 | 785 | //MI change |
cc80f89e | 786 | fTPCParam->AdjustCosSin(isec,cph,sph); |
fe4da5cc | 787 | |
788 | //------------------------------------------------------------ | |
789 | // Loop over tracks | |
790 | //------------------------------------------------------------ | |
791 | ||
792 | for(Int_t track=0;track<ntracks;track++){ | |
793 | ResetHits(); | |
73042f01 | 794 | tH->GetEvent(track); |
fe4da5cc | 795 | // |
73042f01 | 796 | // Get number of the TPC hits |
fe4da5cc | 797 | // |
39c8eb58 | 798 | // nhits=fHits->GetEntriesFast(); |
fe4da5cc | 799 | // |
39c8eb58 | 800 | |
801 | tpcHit = (AliTPChit*)FirstHit(-1); | |
802 | ||
fe4da5cc | 803 | // Loop over hits |
804 | // | |
39c8eb58 | 805 | // for(Int_t hit=0;hit<nhits;hit++){ |
806 | //tpcHit=(AliTPChit*)fHits->UncheckedAt(hit); | |
807 | ||
808 | while(tpcHit){ | |
809 | ||
810 | if (tpcHit->fQ == 0.) { | |
811 | tpcHit = (AliTPChit*) NextHit(); | |
812 | continue; //information about track (I.Belikov) | |
813 | } | |
fe4da5cc | 814 | sector=tpcHit->fSector; // sector number |
39c8eb58 | 815 | |
816 | ||
817 | // if(sector != isec) continue; //terminate iteration | |
818 | ||
819 | if(sector != isec){ | |
820 | tpcHit = (AliTPChit*) NextHit(); | |
821 | continue; | |
822 | } | |
94de3818 | 823 | ipart=tpcHit->Track(); |
73042f01 | 824 | particle=(TParticle*)particles->UncheckedAt(ipart); |
1578254f | 825 | pl=particle->Pz(); |
826 | pt=particle->Pt(); | |
fe4da5cc | 827 | if(pt < 1.e-9) pt=1.e-9; |
828 | tanth=pl/pt; | |
829 | tanth = TMath::Abs(tanth); | |
94de3818 | 830 | rpad=TMath::Sqrt(tpcHit->X()*tpcHit->X() + tpcHit->Y()*tpcHit->Y()); |
fe4da5cc | 831 | ratio=0.001*rpad/pt; // pt must be in MeV/c - historical reason |
73042f01 | 832 | |
fe4da5cc | 833 | // space-point resolutions |
834 | ||
73042f01 | 835 | sigmaRphi=SigmaY2(rpad,tanth,pt); |
836 | sigmaZ =SigmaZ2(rpad,tanth ); | |
fe4da5cc | 837 | |
838 | // cluster widths | |
839 | ||
73042f01 | 840 | clRphi=kACrphi-kBCrphi*rpad*tanth+kCCrphi*ratio*ratio; |
841 | clZ=kACz-kBCz*rpad*tanth+kCCz*tanth*tanth; | |
fe4da5cc | 842 | |
843 | // temporary protection | |
844 | ||
73042f01 | 845 | if(sigmaRphi < 0.) sigmaRphi=0.4e-3; |
846 | if(sigmaZ < 0.) sigmaZ=0.4e-3; | |
847 | if(clRphi < 0.) clRphi=2.5e-3; | |
848 | if(clZ < 0.) clZ=2.5e-5; | |
fe4da5cc | 849 | |
850 | // | |
cc80f89e | 851 | |
852 | // | |
853 | // smearing --> rotate to the 1 (13) or to the 25 (49) sector, | |
fe4da5cc | 854 | // then the inaccuracy in a X-Y plane is only along Y (pad row)! |
855 | // | |
94de3818 | 856 | Float_t xprim= tpcHit->X()*cph + tpcHit->Y()*sph; |
857 | Float_t yprim=-tpcHit->X()*sph + tpcHit->Y()*cph; | |
73042f01 | 858 | xyz[0]=gRandom->Gaus(yprim,TMath::Sqrt(sigmaRphi)); // y |
859 | Float_t alpha=(isec < fTPCParam->GetNInnerSector()) ? | |
860 | fTPCParam->GetInnerAngle() : fTPCParam->GetOuterAngle(); | |
861 | Float_t ymax=xprim*TMath::Tan(0.5*alpha); | |
862 | if (TMath::Abs(xyz[0])>ymax) xyz[0]=yprim; | |
94de3818 | 863 | xyz[1]=gRandom->Gaus(tpcHit->Z(),TMath::Sqrt(sigmaZ)); // z |
864 | if (TMath::Abs(xyz[1])>fTPCParam->GetZLength()) xyz[1]=tpcHit->Z(); | |
39c8eb58 | 865 | xyz[2]=sigmaRphi; // fSigmaY2 |
866 | xyz[3]=sigmaZ; // fSigmaZ2 | |
867 | xyz[4]=tpcHit->fQ; // q | |
73042f01 | 868 | |
869 | AliTPCClustersRow *clrow=carray.GetRow(sector,tpcHit->fPadRow); | |
870 | if (!clrow) clrow=carray.CreateRow(sector,tpcHit->fPadRow); | |
871 | ||
94de3818 | 872 | Int_t tracks[3]={tpcHit->Track(), -1, -1}; |
39c8eb58 | 873 | AliTPCcluster cluster(tracks,xyz); |
73042f01 | 874 | |
875 | clrow->InsertCluster(&cluster); nclusters++; | |
876 | ||
39c8eb58 | 877 | tpcHit = (AliTPChit*)NextHit(); |
878 | ||
879 | ||
fe4da5cc | 880 | } // end of loop over hits |
73042f01 | 881 | |
882 | } // end of loop over tracks | |
883 | ||
884 | Int_t nrows=fTPCParam->GetNRow(isec); | |
885 | for (Int_t irow=0; irow<nrows; irow++) { | |
886 | AliTPCClustersRow *clrow=carray.GetRow(isec,irow); | |
887 | if (!clrow) continue; | |
888 | carray.StoreRow(isec,irow); | |
889 | carray.ClearRow(isec,irow); | |
890 | } | |
891 | ||
cc80f89e | 892 | } // end of loop over sectors |
73042f01 | 893 | |
894 | cerr<<"Number of made clusters : "<<nclusters<<" \n"; | |
895 | ||
896 | carray.GetTree()->Write(); | |
897 | ||
898 | savedir->cd(); //switch back to the input file | |
cc80f89e | 899 | |
900 | } // end of function | |
901 | ||
902 | //_________________________________________________________________ | |
903 | void AliTPC::Hits2ExactClustersSector(Int_t isec) | |
904 | { | |
905 | //-------------------------------------------------------- | |
906 | //calculate exact cross point of track and given pad row | |
907 | //resulting values are expressed in "digit" coordinata | |
908 | //-------------------------------------------------------- | |
909 | ||
910 | //----------------------------------------------------------------- | |
911 | // Origin: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de | |
912 | //----------------------------------------------------------------- | |
913 | // | |
914 | if (fClustersArray==0){ | |
915 | return; | |
916 | } | |
917 | // | |
918 | TParticle *particle; // pointer to a given particle | |
919 | AliTPChit *tpcHit; // pointer to a sigle TPC hit | |
73042f01 | 920 | TClonesArray *particles; //pointer to the particle list |
cc80f89e | 921 | Int_t sector,nhits; |
922 | Int_t ipart; | |
73042f01 | 923 | const Int_t kcmaxhits=30000; |
924 | TVector * xxxx = new TVector(kcmaxhits*4); | |
cc80f89e | 925 | TVector & xxx = *xxxx; |
73042f01 | 926 | Int_t maxhits = kcmaxhits; |
cc80f89e | 927 | //construct array for each padrow |
928 | for (Int_t i=0; i<fTPCParam->GetNRow(isec);i++) | |
929 | fClustersArray->CreateRow(isec,i); | |
fe4da5cc | 930 | |
cc80f89e | 931 | //--------------------------------------------------------------- |
932 | // Get the access to the tracks | |
933 | //--------------------------------------------------------------- | |
934 | ||
73042f01 | 935 | TTree *tH = gAlice->TreeH(); |
936 | Stat_t ntracks = tH->GetEntries(); | |
937 | particles=gAlice->Particles(); | |
938 | Int_t npart = particles->GetEntriesFast(); | |
cc80f89e | 939 | |
940 | //------------------------------------------------------------ | |
941 | // Loop over tracks | |
942 | //------------------------------------------------------------ | |
fe4da5cc | 943 | |
cc80f89e | 944 | for(Int_t track=0;track<ntracks;track++){ |
945 | ResetHits(); | |
73042f01 | 946 | tH->GetEvent(track); |
cc80f89e | 947 | // |
948 | // Get number of the TPC hits and a pointer | |
949 | // to the particles | |
950 | // | |
951 | nhits=fHits->GetEntriesFast(); | |
952 | // | |
953 | // Loop over hits | |
954 | // | |
955 | Int_t currentIndex=0; | |
956 | Int_t lastrow=-1; //last writen row | |
957 | for(Int_t hit=0;hit<nhits;hit++){ | |
958 | tpcHit=(AliTPChit*)fHits->UncheckedAt(hit); | |
959 | if (tpcHit==0) continue; | |
960 | sector=tpcHit->fSector; // sector number | |
961 | if(sector != isec) continue; | |
94de3818 | 962 | ipart=tpcHit->Track(); |
73042f01 | 963 | if (ipart<npart) particle=(TParticle*)particles->UncheckedAt(ipart); |
cc80f89e | 964 | |
965 | //find row number | |
966 | ||
94de3818 | 967 | Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()}; |
cc80f89e | 968 | Int_t index[3]={1,isec,0}; |
969 | Int_t currentrow = fTPCParam->GetPadRow(x,index) ; | |
970 | if (currentrow<0) continue; | |
971 | if (lastrow<0) lastrow=currentrow; | |
972 | if (currentrow==lastrow){ | |
973 | if ( currentIndex>=maxhits){ | |
73042f01 | 974 | maxhits+=kcmaxhits; |
cc80f89e | 975 | xxx.ResizeTo(4*maxhits); |
976 | } | |
977 | xxx(currentIndex*4)=x[0]; | |
978 | xxx(currentIndex*4+1)=x[1]; | |
979 | xxx(currentIndex*4+2)=x[2]; | |
980 | xxx(currentIndex*4+3)=tpcHit->fQ; | |
981 | currentIndex++; | |
982 | } | |
983 | else | |
984 | if (currentIndex>2){ | |
985 | Float_t sumx=0; | |
986 | Float_t sumx2=0; | |
987 | Float_t sumx3=0; | |
988 | Float_t sumx4=0; | |
989 | Float_t sumy=0; | |
990 | Float_t sumxy=0; | |
991 | Float_t sumx2y=0; | |
992 | Float_t sumz=0; | |
993 | Float_t sumxz=0; | |
994 | Float_t sumx2z=0; | |
995 | Float_t sumq=0; | |
996 | for (Int_t index=0;index<currentIndex;index++){ | |
997 | Float_t x,x2,x3,x4; | |
998 | x=x2=x3=x4=xxx(index*4); | |
999 | x2*=x; | |
1000 | x3*=x2; | |
1001 | x4*=x3; | |
1002 | sumx+=x; | |
1003 | sumx2+=x2; | |
1004 | sumx3+=x3; | |
1005 | sumx4+=x4; | |
1006 | sumy+=xxx(index*4+1); | |
1007 | sumxy+=xxx(index*4+1)*x; | |
1008 | sumx2y+=xxx(index*4+1)*x2; | |
1009 | sumz+=xxx(index*4+2); | |
1010 | sumxz+=xxx(index*4+2)*x; | |
1011 | sumx2z+=xxx(index*4+2)*x2; | |
1012 | sumq+=xxx(index*4+3); | |
1013 | } | |
73042f01 | 1014 | Float_t centralPad = (fTPCParam->GetNPads(isec,lastrow)-1)/2; |
cc80f89e | 1015 | Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+ |
1016 | sumx2*(sumx*sumx3-sumx2*sumx2); | |
1017 | ||
1018 | Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+ | |
1019 | sumx2*(sumxy*sumx3-sumx2y*sumx2); | |
1020 | Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+ | |
1021 | sumx2*(sumxz*sumx3-sumx2z*sumx2); | |
1022 | ||
1023 | Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+ | |
1024 | sumx2*(sumx*sumx2y-sumx2*sumxy); | |
1025 | Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+ | |
1026 | sumx2*(sumx*sumx2z-sumx2*sumxz); | |
1027 | ||
73042f01 | 1028 | Float_t y=detay/det+centralPad; |
cc80f89e | 1029 | Float_t z=detaz/det; |
1030 | Float_t by=detby/det; //y angle | |
1031 | Float_t bz=detbz/det; //z angle | |
1032 | sumy/=Float_t(currentIndex); | |
1033 | sumz/=Float_t(currentIndex); | |
2b06d5c3 | 1034 | AliComplexCluster cl; |
cc80f89e | 1035 | cl.fX=z; |
1036 | cl.fY=y; | |
1037 | cl.fQ=sumq; | |
1038 | cl.fSigmaX2=bz; | |
1039 | cl.fSigmaY2=by; | |
1040 | cl.fTracks[0]=ipart; | |
1041 | ||
1042 | AliTPCClustersRow * row = (fClustersArray->GetRow(isec,lastrow)); | |
1043 | if (row!=0) row->InsertCluster(&cl); | |
1044 | currentIndex=0; | |
1045 | lastrow=currentrow; | |
1046 | } //end of calculating cluster for given row | |
1047 | ||
1048 | ||
1049 | ||
1050 | } // end of loop over hits | |
1051 | } // end of loop over tracks | |
1052 | //write padrows to tree | |
1053 | for (Int_t ii=0; ii<fTPCParam->GetNRow(isec);ii++) { | |
1054 | fClustersArray->StoreRow(isec,ii); | |
1055 | fClustersArray->ClearRow(isec,ii); | |
1056 | } | |
1057 | xxxx->Delete(); | |
1058 | ||
fe4da5cc | 1059 | } |
1060 | ||
cc80f89e | 1061 | //__________________________________________________________________ |
8c555625 | 1062 | void AliTPC::Hits2Digits() |
1063 | { | |
8c555625 | 1064 | //---------------------------------------------------- |
cc80f89e | 1065 | // Loop over all sectors |
1066 | //---------------------------------------------------- | |
1067 | ||
1068 | if(fTPCParam == 0){ | |
1069 | printf("AliTPCParam MUST be created firstly\n"); | |
1070 | return; | |
1071 | } | |
1072 | ||
1073 | for(Int_t isec=0;isec<fTPCParam->GetNSector();isec++) Hits2DigitsSector(isec); | |
1074 | ||
8c555625 | 1075 | } |
1076 | ||
1077 | ||
fe4da5cc | 1078 | //_____________________________________________________________________________ |
8c555625 | 1079 | void AliTPC::Hits2DigitsSector(Int_t isec) |
fe4da5cc | 1080 | { |
8c555625 | 1081 | //------------------------------------------------------------------- |
fe4da5cc | 1082 | // TPC conversion from hits to digits. |
8c555625 | 1083 | //------------------------------------------------------------------- |
1084 | ||
1085 | //----------------------------------------------------------------- | |
1086 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1087 | //----------------------------------------------------------------- | |
1088 | ||
fe4da5cc | 1089 | //------------------------------------------------------- |
8c555625 | 1090 | // Get the access to the track hits |
fe4da5cc | 1091 | //------------------------------------------------------- |
8c555625 | 1092 | |
cc80f89e | 1093 | |
73042f01 | 1094 | TTree *tH = gAlice->TreeH(); // pointer to the hits tree |
1095 | Stat_t ntracks = tH->GetEntries(); | |
8c555625 | 1096 | |
1097 | if( ntracks > 0){ | |
1098 | ||
1099 | //------------------------------------------- | |
1100 | // Only if there are any tracks... | |
1101 | //------------------------------------------- | |
1102 | ||
8c555625 | 1103 | TObjArray **row; |
fe4da5cc | 1104 | |
8c555625 | 1105 | printf("*** Processing sector number %d ***\n",isec); |
1106 | ||
1107 | Int_t nrows =fTPCParam->GetNRow(isec); | |
1108 | ||
1109 | row= new TObjArray* [nrows]; | |
fe4da5cc | 1110 | |
73042f01 | 1111 | MakeSector(isec,nrows,tH,ntracks,row); |
8c555625 | 1112 | |
1113 | //-------------------------------------------------------- | |
1114 | // Digitize this sector, row by row | |
1115 | // row[i] is the pointer to the TObjArray of TVectors, | |
1116 | // each one containing electrons accepted on this | |
1117 | // row, assigned into tracks | |
1118 | //-------------------------------------------------------- | |
1119 | ||
1120 | Int_t i; | |
1121 | ||
cc80f89e | 1122 | if (fDigitsArray->GetTree()==0) fDigitsArray->MakeTree(); |
8c555625 | 1123 | |
cc80f89e | 1124 | for (i=0;i<nrows;i++){ |
8c555625 | 1125 | |
cc80f89e | 1126 | AliDigits * dig = fDigitsArray->CreateRow(isec,i); |
8c555625 | 1127 | |
cc80f89e | 1128 | DigitizeRow(i,isec,row); |
8c555625 | 1129 | |
cc80f89e | 1130 | fDigitsArray->StoreRow(isec,i); |
8c555625 | 1131 | |
73042f01 | 1132 | Int_t ndig = dig->GetDigitSize(); |
cc80f89e | 1133 | |
1134 | printf("*** Sector, row, compressed digits %d %d %d ***\n",isec,i,ndig); | |
1135 | ||
1136 | fDigitsArray->ClearRow(isec,i); | |
8c555625 | 1137 | |
cc80f89e | 1138 | |
8c555625 | 1139 | } // end of the sector digitization |
8c555625 | 1140 | |
cc80f89e | 1141 | for(i=0;i<nrows;i++){ |
39c8eb58 | 1142 | row[i]->Delete(); |
1143 | delete row[i]; | |
cc80f89e | 1144 | } |
1145 | ||
8c555625 | 1146 | delete [] row; // delete the array of pointers to TObjArray-s |
1147 | ||
1148 | } // ntracks >0 | |
8c555625 | 1149 | |
cc80f89e | 1150 | } // end of Hits2DigitsSector |
8c555625 | 1151 | |
8c555625 | 1152 | |
8c555625 | 1153 | //_____________________________________________________________________________ |
cc80f89e | 1154 | void AliTPC::DigitizeRow(Int_t irow,Int_t isec,TObjArray **rows) |
8c555625 | 1155 | { |
1156 | //----------------------------------------------------------- | |
1157 | // Single row digitization, coupling from the neighbouring | |
1158 | // rows taken into account | |
1159 | //----------------------------------------------------------- | |
1160 | ||
1161 | //----------------------------------------------------------------- | |
1162 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
cc80f89e | 1163 | // Modified: Marian Ivanov GSI Darmstadt, m.ivanov@gsi.de |
8c555625 | 1164 | //----------------------------------------------------------------- |
1165 | ||
1166 | ||
8c555625 | 1167 | Float_t zerosup = fTPCParam->GetZeroSup(); |
1168 | Int_t nrows =fTPCParam->GetNRow(isec); | |
cc80f89e | 1169 | fCurrentIndex[1]= isec; |
8c555625 | 1170 | |
8c555625 | 1171 | |
73042f01 | 1172 | Int_t nofPads = fTPCParam->GetNPads(isec,irow); |
1173 | Int_t nofTbins = fTPCParam->GetMaxTBin(); | |
1174 | Int_t indexRange[4]; | |
8c555625 | 1175 | // |
1176 | // Integrated signal for this row | |
1177 | // and a single track signal | |
cc80f89e | 1178 | // |
73042f01 | 1179 | TMatrix *m1 = new TMatrix(0,nofPads,0,nofTbins); // integrated |
1180 | TMatrix *m2 = new TMatrix(0,nofPads,0,nofTbins); // single | |
8c555625 | 1181 | // |
73042f01 | 1182 | TMatrix &total = *m1; |
8c555625 | 1183 | |
1184 | // Array of pointers to the label-signal list | |
1185 | ||
73042f01 | 1186 | Int_t nofDigits = nofPads*nofTbins; // number of digits for this row |
1187 | Float_t **pList = new Float_t* [nofDigits]; | |
8c555625 | 1188 | |
1189 | Int_t lp; | |
cc80f89e | 1190 | Int_t i1; |
73042f01 | 1191 | for(lp=0;lp<nofDigits;lp++)pList[lp]=0; // set all pointers to NULL |
8c555625 | 1192 | // |
cc80f89e | 1193 | //calculate signal |
1194 | // | |
1195 | Int_t row1 = TMath::Max(irow-fTPCParam->GetNCrossRows(),0); | |
1196 | Int_t row2 = TMath::Min(irow+fTPCParam->GetNCrossRows(),nrows-1); | |
1197 | for (Int_t row= row1;row<=row2;row++){ | |
1198 | Int_t nTracks= rows[row]->GetEntries(); | |
1199 | for (i1=0;i1<nTracks;i1++){ | |
1200 | fCurrentIndex[2]= row; | |
1201 | fCurrentIndex[3]=irow; | |
1202 | if (row==irow){ | |
1203 | m2->Zero(); // clear single track signal matrix | |
73042f01 | 1204 | Float_t trackLabel = GetSignal(rows[row],i1,m2,m1,indexRange); |
1205 | GetList(trackLabel,nofPads,m2,indexRange,pList); | |
cc80f89e | 1206 | } |
73042f01 | 1207 | else GetSignal(rows[row],i1,0,m1,indexRange); |
cc80f89e | 1208 | } |
8c555625 | 1209 | } |
cc80f89e | 1210 | |
8c555625 | 1211 | Int_t tracks[3]; |
8c555625 | 1212 | |
cc80f89e | 1213 | AliDigits *dig = fDigitsArray->GetRow(isec,irow); |
73042f01 | 1214 | for(Int_t ip=0;ip<nofPads;ip++){ |
1215 | for(Int_t it=0;it<nofTbins;it++){ | |
8c555625 | 1216 | |
73042f01 | 1217 | Float_t q = total(ip,it); |
8c555625 | 1218 | |
73042f01 | 1219 | Int_t gi =it*nofPads+ip; // global index |
8c555625 | 1220 | |
cc80f89e | 1221 | q = gRandom->Gaus(q,fTPCParam->GetNoise()*fTPCParam->GetNoiseNormFac()); |
8c555625 | 1222 | |
cc80f89e | 1223 | q = (Int_t)q; |
1224 | ||
1225 | if(q <=zerosup) continue; // do not fill zeros | |
73042f01 | 1226 | if(q > fTPCParam->GetADCSat()) q = fTPCParam->GetADCSat(); // saturation |
8c555625 | 1227 | |
1228 | // | |
1229 | // "real" signal or electronic noise (list = -1)? | |
1230 | // | |
1231 | ||
1232 | for(Int_t j1=0;j1<3;j1++){ | |
1233 | tracks[j1] = (pList[gi]) ?(Int_t)(*(pList[gi]+j1)) : -1; | |
1234 | } | |
1235 | ||
cc80f89e | 1236 | //Begin_Html |
1237 | /* | |
1238 | <A NAME="AliDigits"></A> | |
1239 | using of AliDigits object | |
1240 | */ | |
1241 | //End_Html | |
1242 | dig->SetDigitFast((Short_t)q,it,ip); | |
1243 | if (fDigitsArray->IsSimulated()) | |
1244 | { | |
1245 | ((AliSimDigits*)dig)->SetTrackIDFast(tracks[0],it,ip,0); | |
1246 | ((AliSimDigits*)dig)->SetTrackIDFast(tracks[1],it,ip,1); | |
1247 | ((AliSimDigits*)dig)->SetTrackIDFast(tracks[2],it,ip,2); | |
1248 | } | |
1249 | ||
8c555625 | 1250 | |
1251 | } // end of loop over time buckets | |
1252 | } // end of lop over pads | |
1253 | ||
1254 | // | |
1255 | // This row has been digitized, delete nonused stuff | |
1256 | // | |
1257 | ||
73042f01 | 1258 | for(lp=0;lp<nofDigits;lp++){ |
8c555625 | 1259 | if(pList[lp]) delete [] pList[lp]; |
1260 | } | |
1261 | ||
1262 | delete [] pList; | |
1263 | ||
1264 | delete m1; | |
1265 | delete m2; | |
cc80f89e | 1266 | // delete m3; |
8c555625 | 1267 | |
1268 | } // end of DigitizeRow | |
cc80f89e | 1269 | |
8c555625 | 1270 | //_____________________________________________________________________________ |
cc80f89e | 1271 | |
1272 | Float_t AliTPC::GetSignal(TObjArray *p1, Int_t ntr, TMatrix *m1, TMatrix *m2, | |
73042f01 | 1273 | Int_t *indexRange) |
8c555625 | 1274 | { |
1275 | ||
1276 | //--------------------------------------------------------------- | |
1277 | // Calculates 2-D signal (pad,time) for a single track, | |
1278 | // returns a pointer to the signal matrix and the track label | |
1279 | // No digitization is performed at this level!!! | |
1280 | //--------------------------------------------------------------- | |
1281 | ||
1282 | //----------------------------------------------------------------- | |
1283 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
cc80f89e | 1284 | // Modified: Marian Ivanov |
8c555625 | 1285 | //----------------------------------------------------------------- |
1286 | ||
1287 | TVector *tv; | |
8c555625 | 1288 | |
8c555625 | 1289 | tv = (TVector*)p1->At(ntr); // pointer to a track |
1290 | TVector &v = *tv; | |
1291 | ||
1292 | Float_t label = v(0); | |
73042f01 | 1293 | Int_t centralPad = (fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3])-1)/2; |
8c555625 | 1294 | |
8c555625 | 1295 | Int_t nElectrons = (tv->GetNrows()-1)/4; |
73042f01 | 1296 | indexRange[0]=9999; // min pad |
1297 | indexRange[1]=-1; // max pad | |
1298 | indexRange[2]=9999; //min time | |
1299 | indexRange[3]=-1; // max time | |
8c555625 | 1300 | |
cc80f89e | 1301 | // Float_t IneffFactor = 0.5; // inefficiency in the gain close to the edge, as above |
1302 | ||
1303 | TMatrix &signal = *m1; | |
1304 | TMatrix &total = *m2; | |
8c555625 | 1305 | // |
1306 | // Loop over all electrons | |
1307 | // | |
8c555625 | 1308 | for(Int_t nel=0; nel<nElectrons; nel++){ |
cc80f89e | 1309 | Int_t idx=nel*4; |
1310 | Float_t aval = v(idx+4); | |
1311 | Float_t eltoadcfac=aval*fTPCParam->GetTotalNormFac(); | |
1312 | Float_t xyz[3]={v(idx+1),v(idx+2),v(idx+3)}; | |
1313 | Int_t n = fTPCParam->CalcResponse(xyz,fCurrentIndex,fCurrentIndex[3]); | |
8c555625 | 1314 | |
cc80f89e | 1315 | if (n>0) for (Int_t i =0; i<n; i++){ |
1316 | Int_t *index = fTPCParam->GetResBin(i); | |
73042f01 | 1317 | Int_t pad=index[1]+centralPad; //in digit coordinates central pad has coordinate 0 |
cc80f89e | 1318 | if ( ( pad<(fTPCParam->GetNPads(fCurrentIndex[1],fCurrentIndex[3]))) && (pad>0)) { |
1319 | Int_t time=index[2]; | |
1320 | Float_t weight = fTPCParam->GetResWeight(i); //we normalise response to ADC channel | |
1321 | weight *= eltoadcfac; | |
1322 | ||
1323 | if (m1!=0) signal(pad,time)+=weight; | |
1324 | total(pad,time)+=weight; | |
73042f01 | 1325 | indexRange[0]=TMath::Min(indexRange[0],pad); |
1326 | indexRange[1]=TMath::Max(indexRange[1],pad); | |
1327 | indexRange[2]=TMath::Min(indexRange[2],time); | |
1328 | indexRange[3]=TMath::Max(indexRange[3],time); | |
cc80f89e | 1329 | } |
1330 | } | |
8c555625 | 1331 | } // end of loop over electrons |
cc80f89e | 1332 | |
8c555625 | 1333 | return label; // returns track label when finished |
1334 | } | |
1335 | ||
1336 | //_____________________________________________________________________________ | |
73042f01 | 1337 | void AliTPC::GetList(Float_t label,Int_t np,TMatrix *m,Int_t *indexRange, |
8c555625 | 1338 | Float_t **pList) |
1339 | { | |
1340 | //---------------------------------------------------------------------- | |
1341 | // Updates the list of tracks contributing to digits for a given row | |
1342 | //---------------------------------------------------------------------- | |
1343 | ||
1344 | //----------------------------------------------------------------- | |
1345 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1346 | //----------------------------------------------------------------- | |
1347 | ||
1348 | TMatrix &signal = *m; | |
1349 | ||
1350 | // lop over nonzero digits | |
1351 | ||
73042f01 | 1352 | for(Int_t it=indexRange[2];it<indexRange[3]+1;it++){ |
1353 | for(Int_t ip=indexRange[0];ip<indexRange[1]+1;ip++){ | |
8c555625 | 1354 | |
1355 | ||
921bf71a | 1356 | // accept only the contribution larger than 500 electrons (1/2 s_noise) |
1357 | ||
cc80f89e | 1358 | if(signal(ip,it)<0.5) continue; |
921bf71a | 1359 | |
1360 | ||
73042f01 | 1361 | Int_t globalIndex = it*np+ip; // globalIndex starts from 0! |
8c555625 | 1362 | |
73042f01 | 1363 | if(!pList[globalIndex]){ |
8c555625 | 1364 | |
1365 | // | |
1366 | // Create new list (6 elements - 3 signals and 3 labels), | |
8c555625 | 1367 | // |
1368 | ||
73042f01 | 1369 | pList[globalIndex] = new Float_t [6]; |
8c555625 | 1370 | |
1371 | // set list to -1 | |
1372 | ||
73042f01 | 1373 | *pList[globalIndex] = -1.; |
1374 | *(pList[globalIndex]+1) = -1.; | |
1375 | *(pList[globalIndex]+2) = -1.; | |
1376 | *(pList[globalIndex]+3) = -1.; | |
1377 | *(pList[globalIndex]+4) = -1.; | |
1378 | *(pList[globalIndex]+5) = -1.; | |
8c555625 | 1379 | |
1380 | ||
73042f01 | 1381 | *pList[globalIndex] = label; |
1382 | *(pList[globalIndex]+3) = signal(ip,it); | |
8c555625 | 1383 | } |
1384 | else{ | |
1385 | ||
1386 | // check the signal magnitude | |
1387 | ||
73042f01 | 1388 | Float_t highest = *(pList[globalIndex]+3); |
1389 | Float_t middle = *(pList[globalIndex]+4); | |
1390 | Float_t lowest = *(pList[globalIndex]+5); | |
8c555625 | 1391 | |
1392 | // | |
1393 | // compare the new signal with already existing list | |
1394 | // | |
1395 | ||
1396 | if(signal(ip,it)<lowest) continue; // neglect this track | |
1397 | ||
1398 | // | |
1399 | ||
1400 | if (signal(ip,it)>highest){ | |
73042f01 | 1401 | *(pList[globalIndex]+5) = middle; |
1402 | *(pList[globalIndex]+4) = highest; | |
1403 | *(pList[globalIndex]+3) = signal(ip,it); | |
8c555625 | 1404 | |
73042f01 | 1405 | *(pList[globalIndex]+2) = *(pList[globalIndex]+1); |
1406 | *(pList[globalIndex]+1) = *pList[globalIndex]; | |
1407 | *pList[globalIndex] = label; | |
8c555625 | 1408 | } |
1409 | else if (signal(ip,it)>middle){ | |
73042f01 | 1410 | *(pList[globalIndex]+5) = middle; |
1411 | *(pList[globalIndex]+4) = signal(ip,it); | |
8c555625 | 1412 | |
73042f01 | 1413 | *(pList[globalIndex]+2) = *(pList[globalIndex]+1); |
1414 | *(pList[globalIndex]+1) = label; | |
8c555625 | 1415 | } |
1416 | else{ | |
73042f01 | 1417 | *(pList[globalIndex]+5) = signal(ip,it); |
1418 | *(pList[globalIndex]+2) = label; | |
8c555625 | 1419 | } |
1420 | } | |
1421 | ||
1422 | } // end of loop over pads | |
1423 | } // end of loop over time bins | |
1424 | ||
1425 | ||
1426 | ||
8c555625 | 1427 | }//end of GetList |
1428 | //___________________________________________________________________ | |
1429 | void AliTPC::MakeSector(Int_t isec,Int_t nrows,TTree *TH, | |
1430 | Stat_t ntracks,TObjArray **row) | |
1431 | { | |
1432 | ||
1433 | //----------------------------------------------------------------- | |
1434 | // Prepares the sector digitization, creates the vectors of | |
1435 | // tracks for each row of this sector. The track vector | |
1436 | // contains the track label and the position of electrons. | |
1437 | //----------------------------------------------------------------- | |
1438 | ||
1439 | //----------------------------------------------------------------- | |
1440 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1441 | //----------------------------------------------------------------- | |
1442 | ||
cc80f89e | 1443 | Float_t gasgain = fTPCParam->GetGasGain(); |
8c555625 | 1444 | Int_t i; |
cc80f89e | 1445 | Float_t xyz[4]; |
8c555625 | 1446 | |
1447 | AliTPChit *tpcHit; // pointer to a sigle TPC hit | |
39c8eb58 | 1448 | //MI change |
1449 | TBranch * branch=0; | |
1450 | if (fHitType&2) branch = TH->GetBranch("TPC2"); | |
1451 | else branch = TH->GetBranch("TPC"); | |
1452 | ||
8c555625 | 1453 | |
1454 | //---------------------------------------------- | |
1455 | // Create TObjArray-s, one for each row, | |
1456 | // each TObjArray will store the TVectors | |
1457 | // of electrons, one TVector per each track. | |
1458 | //---------------------------------------------- | |
1459 | ||
f74bb6f5 | 1460 | Int_t *nofElectrons = new Int_t [nrows]; // electron counter for each row |
1461 | TVector **tracks = new TVector* [nrows]; //pointers to the track vectors | |
8c555625 | 1462 | for(i=0; i<nrows; i++){ |
1463 | row[i] = new TObjArray; | |
f74bb6f5 | 1464 | nofElectrons[i]=0; |
1465 | tracks[i]=0; | |
8c555625 | 1466 | } |
8c555625 | 1467 | |
37831078 | 1468 | |
1469 | ||
8c555625 | 1470 | //-------------------------------------------------------------------- |
1471 | // Loop over tracks, the "track" contains the full history | |
1472 | //-------------------------------------------------------------------- | |
1473 | ||
1474 | Int_t previousTrack,currentTrack; | |
1475 | previousTrack = -1; // nothing to store so far! | |
1476 | ||
1477 | for(Int_t track=0;track<ntracks;track++){ | |
39c8eb58 | 1478 | Bool_t isInSector=kTRUE; |
8c555625 | 1479 | ResetHits(); |
1480 | ||
39c8eb58 | 1481 | if (fHitType&2) { |
1482 | isInSector=kFALSE; | |
1483 | TBranch * br = TH->GetBranch("fTrackHitsInfo"); | |
1484 | br->GetEvent(track); | |
1485 | AliObjectArray * ar = fTrackHits->fTrackHitsInfo; | |
1486 | for (UInt_t j=0;j<ar->GetSize();j++){ | |
1487 | if ( ((AliTrackHitsInfo*)ar->At(j))->fVolumeID==isec) isInSector=kTRUE; | |
1488 | } | |
1489 | } | |
1490 | if (!isInSector) continue; | |
1491 | //MI change | |
1492 | branch->GetEntry(track); // get next track | |
1493 | ||
1494 | //M.I. changes | |
8c555625 | 1495 | |
39c8eb58 | 1496 | tpcHit = (AliTPChit*)FirstHit(-1); |
8c555625 | 1497 | |
1498 | //-------------------------------------------------------------- | |
1499 | // Loop over hits | |
1500 | //-------------------------------------------------------------- | |
1501 | ||
8c555625 | 1502 | |
39c8eb58 | 1503 | while(tpcHit){ |
8c555625 | 1504 | |
1505 | Int_t sector=tpcHit->fSector; // sector number | |
39c8eb58 | 1506 | // if(sector != isec) continue; |
1507 | if(sector != isec){ | |
1508 | tpcHit = (AliTPChit*) NextHit(); | |
1509 | continue; | |
1510 | } | |
8c555625 | 1511 | |
94de3818 | 1512 | currentTrack = tpcHit->Track(); // track number |
39c8eb58 | 1513 | |
1514 | ||
8c555625 | 1515 | if(currentTrack != previousTrack){ |
1516 | ||
1517 | // store already filled fTrack | |
1518 | ||
1519 | for(i=0;i<nrows;i++){ | |
1520 | if(previousTrack != -1){ | |
73042f01 | 1521 | if(nofElectrons[i]>0){ |
cc80f89e | 1522 | TVector &v = *tracks[i]; |
8c555625 | 1523 | v(0) = previousTrack; |
73042f01 | 1524 | tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary |
cc80f89e | 1525 | row[i]->Add(tracks[i]); |
8c555625 | 1526 | } |
1527 | else{ | |
cc80f89e | 1528 | delete tracks[i]; // delete empty TVector |
1529 | tracks[i]=0; | |
8c555625 | 1530 | } |
1531 | } | |
1532 | ||
73042f01 | 1533 | nofElectrons[i]=0; |
cc80f89e | 1534 | tracks[i] = new TVector(481); // TVectors for the next fTrack |
8c555625 | 1535 | |
1536 | } // end of loop over rows | |
1537 | ||
1538 | previousTrack=currentTrack; // update track label | |
1539 | } | |
1540 | ||
73042f01 | 1541 | Int_t qI = (Int_t) (tpcHit->fQ); // energy loss (number of electrons) |
8c555625 | 1542 | |
1543 | //--------------------------------------------------- | |
1544 | // Calculate the electron attachment probability | |
1545 | //--------------------------------------------------- | |
1546 | ||
cc80f89e | 1547 | |
94de3818 | 1548 | Float_t time = 1.e6*(fTPCParam->GetZLength()-TMath::Abs(tpcHit->Z())) |
cc80f89e | 1549 | /fTPCParam->GetDriftV(); |
8c555625 | 1550 | // in microseconds! |
73042f01 | 1551 | Float_t attProb = fTPCParam->GetAttCoef()* |
8c555625 | 1552 | fTPCParam->GetOxyCont()*time; // fraction! |
1553 | ||
1554 | //----------------------------------------------- | |
1555 | // Loop over electrons | |
1556 | //----------------------------------------------- | |
cc80f89e | 1557 | Int_t index[3]; |
1558 | index[1]=isec; | |
73042f01 | 1559 | for(Int_t nel=0;nel<qI;nel++){ |
8c555625 | 1560 | // skip if electron lost due to the attachment |
73042f01 | 1561 | if((gRandom->Rndm(0)) < attProb) continue; // electron lost! |
94de3818 | 1562 | xyz[0]=tpcHit->X(); |
1563 | xyz[1]=tpcHit->Y(); | |
1564 | xyz[2]=tpcHit->Z(); | |
cc80f89e | 1565 | xyz[3]= (Float_t) (-gasgain*TMath::Log(gRandom->Rndm())); |
1566 | index[0]=1; | |
1567 | ||
1568 | TransportElectron(xyz,index); //MI change -august | |
73042f01 | 1569 | Int_t rowNumber; |
cc80f89e | 1570 | fTPCParam->GetPadRow(xyz,index); //MI change august |
73042f01 | 1571 | rowNumber = index[2]; |
cc80f89e | 1572 | //transform position to local digit coordinates |
1573 | //relative to nearest pad row | |
73042f01 | 1574 | if ((rowNumber<0)||rowNumber>=fTPCParam->GetNRow(isec)) continue; |
1575 | nofElectrons[rowNumber]++; | |
8c555625 | 1576 | //---------------------------------- |
1577 | // Expand vector if necessary | |
1578 | //---------------------------------- | |
73042f01 | 1579 | if(nofElectrons[rowNumber]>120){ |
1580 | Int_t range = tracks[rowNumber]->GetNrows(); | |
1581 | if((nofElectrons[rowNumber])>(range-1)/4){ | |
cc80f89e | 1582 | |
73042f01 | 1583 | tracks[rowNumber]->ResizeTo(range+400); // Add 100 electrons |
fe4da5cc | 1584 | } |
1585 | } | |
1586 | ||
73042f01 | 1587 | TVector &v = *tracks[rowNumber]; |
1588 | Int_t idx = 4*nofElectrons[rowNumber]-3; | |
8c555625 | 1589 | |
cc80f89e | 1590 | v(idx)= xyz[0]; // X - pad row coordinate |
1591 | v(idx+1)=xyz[1]; // Y - pad coordinate (along the pad-row) | |
1592 | v(idx+2)=xyz[2]; // Z - time bin coordinate | |
1593 | v(idx+3)=xyz[3]; // avalanche size | |
8c555625 | 1594 | } // end of loop over electrons |
39c8eb58 | 1595 | |
1596 | tpcHit = (AliTPChit*)NextHit(); | |
8c555625 | 1597 | |
1598 | } // end of loop over hits | |
1599 | } // end of loop over tracks | |
1600 | ||
1601 | // | |
1602 | // store remaining track (the last one) if not empty | |
1603 | // | |
1604 | ||
1605 | for(i=0;i<nrows;i++){ | |
73042f01 | 1606 | if(nofElectrons[i]>0){ |
cc80f89e | 1607 | TVector &v = *tracks[i]; |
8c555625 | 1608 | v(0) = previousTrack; |
73042f01 | 1609 | tracks[i]->ResizeTo(4*nofElectrons[i]+1); // shrink if necessary |
cc80f89e | 1610 | row[i]->Add(tracks[i]); |
fe4da5cc | 1611 | } |
1612 | else{ | |
cc80f89e | 1613 | delete tracks[i]; |
1614 | tracks[i]=0; | |
8c555625 | 1615 | } |
1616 | } | |
1617 | ||
cc80f89e | 1618 | delete [] tracks; |
73042f01 | 1619 | delete [] nofElectrons; |
8c555625 | 1620 | |
8c555625 | 1621 | |
cc80f89e | 1622 | } // end of MakeSector |
8c555625 | 1623 | |
fe4da5cc | 1624 | |
1625 | //_____________________________________________________________________________ | |
1626 | void AliTPC::Init() | |
1627 | { | |
1628 | // | |
1629 | // Initialise TPC detector after definition of geometry | |
1630 | // | |
1631 | Int_t i; | |
1632 | // | |
1633 | printf("\n"); | |
1634 | for(i=0;i<35;i++) printf("*"); | |
1635 | printf(" TPC_INIT "); | |
1636 | for(i=0;i<35;i++) printf("*"); | |
1637 | printf("\n"); | |
1638 | // | |
1639 | for(i=0;i<80;i++) printf("*"); | |
1640 | printf("\n"); | |
1641 | } | |
1642 | ||
1643 | //_____________________________________________________________________________ | |
1644 | void AliTPC::MakeBranch(Option_t* option) | |
1645 | { | |
1646 | // | |
1647 | // Create Tree branches for the TPC. | |
1648 | // | |
1649 | Int_t buffersize = 4000; | |
1650 | char branchname[10]; | |
1651 | sprintf(branchname,"%s",GetName()); | |
1652 | ||
1653 | AliDetector::MakeBranch(option); | |
1654 | ||
73042f01 | 1655 | char *d = strstr(option,"D"); |
fe4da5cc | 1656 | |
73042f01 | 1657 | if (fDigits && gAlice->TreeD() && d) { |
fe4da5cc | 1658 | gAlice->TreeD()->Branch(branchname,&fDigits, buffersize); |
1659 | printf("Making Branch %s for digits\n",branchname); | |
1660 | } | |
39c8eb58 | 1661 | |
1662 | if (fHitType&2) MakeBranch2(option); // MI change 14.09.2000 | |
fe4da5cc | 1663 | } |
1664 | ||
1665 | //_____________________________________________________________________________ | |
1666 | void AliTPC::ResetDigits() | |
1667 | { | |
1668 | // | |
1669 | // Reset number of digits and the digits array for this detector | |
fe4da5cc | 1670 | // |
1671 | fNdigits = 0; | |
cc80f89e | 1672 | if (fDigits) fDigits->Clear(); |
fe4da5cc | 1673 | } |
1674 | ||
1675 | //_____________________________________________________________________________ | |
1676 | void AliTPC::SetSecAL(Int_t sec) | |
1677 | { | |
8c555625 | 1678 | //--------------------------------------------------- |
fe4da5cc | 1679 | // Activate/deactivate selection for lower sectors |
8c555625 | 1680 | //--------------------------------------------------- |
1681 | ||
1682 | //----------------------------------------------------------------- | |
1683 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1684 | //----------------------------------------------------------------- | |
1685 | ||
fe4da5cc | 1686 | fSecAL = sec; |
1687 | } | |
1688 | ||
1689 | //_____________________________________________________________________________ | |
1690 | void AliTPC::SetSecAU(Int_t sec) | |
1691 | { | |
8c555625 | 1692 | //---------------------------------------------------- |
fe4da5cc | 1693 | // Activate/deactivate selection for upper sectors |
8c555625 | 1694 | //--------------------------------------------------- |
1695 | ||
1696 | //----------------------------------------------------------------- | |
1697 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1698 | //----------------------------------------------------------------- | |
1699 | ||
fe4da5cc | 1700 | fSecAU = sec; |
1701 | } | |
1702 | ||
1703 | //_____________________________________________________________________________ | |
1704 | void AliTPC::SetSecLows(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6) | |
1705 | { | |
8c555625 | 1706 | //---------------------------------------- |
fe4da5cc | 1707 | // Select active lower sectors |
8c555625 | 1708 | //---------------------------------------- |
1709 | ||
1710 | //----------------------------------------------------------------- | |
1711 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1712 | //----------------------------------------------------------------- | |
1713 | ||
fe4da5cc | 1714 | fSecLows[0] = s1; |
1715 | fSecLows[1] = s2; | |
1716 | fSecLows[2] = s3; | |
1717 | fSecLows[3] = s4; | |
1718 | fSecLows[4] = s5; | |
1719 | fSecLows[5] = s6; | |
1720 | } | |
1721 | ||
1722 | //_____________________________________________________________________________ | |
1723 | void AliTPC::SetSecUps(Int_t s1,Int_t s2,Int_t s3,Int_t s4,Int_t s5, Int_t s6, | |
1724 | Int_t s7, Int_t s8 ,Int_t s9 ,Int_t s10, | |
1725 | Int_t s11 , Int_t s12) | |
1726 | { | |
8c555625 | 1727 | //-------------------------------- |
fe4da5cc | 1728 | // Select active upper sectors |
8c555625 | 1729 | //-------------------------------- |
1730 | ||
1731 | //----------------------------------------------------------------- | |
1732 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1733 | //----------------------------------------------------------------- | |
1734 | ||
fe4da5cc | 1735 | fSecUps[0] = s1; |
1736 | fSecUps[1] = s2; | |
1737 | fSecUps[2] = s3; | |
1738 | fSecUps[3] = s4; | |
1739 | fSecUps[4] = s5; | |
1740 | fSecUps[5] = s6; | |
1741 | fSecUps[6] = s7; | |
1742 | fSecUps[7] = s8; | |
1743 | fSecUps[8] = s9; | |
1744 | fSecUps[9] = s10; | |
1745 | fSecUps[10] = s11; | |
1746 | fSecUps[11] = s12; | |
1747 | } | |
1748 | ||
1749 | //_____________________________________________________________________________ | |
1750 | void AliTPC::SetSens(Int_t sens) | |
1751 | { | |
8c555625 | 1752 | |
1753 | //------------------------------------------------------------- | |
1754 | // Activates/deactivates the sensitive strips at the center of | |
1755 | // the pad row -- this is for the space-point resolution calculations | |
1756 | //------------------------------------------------------------- | |
1757 | ||
1758 | //----------------------------------------------------------------- | |
1759 | // Origin: Marek Kowalski IFJ, Krakow, Marek.Kowalski@ifj.edu.pl | |
1760 | //----------------------------------------------------------------- | |
1761 | ||
fe4da5cc | 1762 | fSens = sens; |
1763 | } | |
2b06d5c3 | 1764 | |
4b0fdcad | 1765 | |
73042f01 | 1766 | void AliTPC::SetSide(Float_t side=0.) |
4b0fdcad | 1767 | { |
73042f01 | 1768 | // choice of the TPC side |
1769 | ||
4b0fdcad | 1770 | fSide = side; |
1771 | ||
1772 | } | |
1283eee5 | 1773 | //____________________________________________________________________________ |
1774 | void AliTPC::SetGasMixt(Int_t nc,Int_t c1,Int_t c2,Int_t c3,Float_t p1, | |
1775 | Float_t p2,Float_t p3) | |
1776 | { | |
fe4da5cc | 1777 | |
73042f01 | 1778 | // gax mixture definition |
1779 | ||
1283eee5 | 1780 | fNoComp = nc; |
1781 | ||
1782 | fMixtComp[0]=c1; | |
1783 | fMixtComp[1]=c2; | |
1784 | fMixtComp[2]=c3; | |
1785 | ||
1786 | fMixtProp[0]=p1; | |
1787 | fMixtProp[1]=p2; | |
1788 | fMixtProp[2]=p3; | |
1789 | ||
1790 | ||
cc80f89e | 1791 | } |
1792 | //_____________________________________________________________________________ | |
1793 | ||
1794 | void AliTPC::TransportElectron(Float_t *xyz, Int_t *index) | |
1795 | { | |
1796 | // | |
1797 | // electron transport taking into account: | |
1798 | // 1. diffusion, | |
1799 | // 2.ExB at the wires | |
1800 | // 3. nonisochronity | |
1801 | // | |
1802 | // xyz and index must be already transformed to system 1 | |
1803 | // | |
1804 | ||
1805 | fTPCParam->Transform1to2(xyz,index); | |
1806 | ||
1807 | //add diffusion | |
1808 | Float_t driftl=xyz[2]; | |
1809 | if(driftl<0.01) driftl=0.01; | |
1810 | driftl=TMath::Sqrt(driftl); | |
73042f01 | 1811 | Float_t sigT = driftl*(fTPCParam->GetDiffT()); |
1812 | Float_t sigL = driftl*(fTPCParam->GetDiffL()); | |
1813 | xyz[0]=gRandom->Gaus(xyz[0],sigT); | |
1814 | xyz[1]=gRandom->Gaus(xyz[1],sigT); | |
1815 | xyz[2]=gRandom->Gaus(xyz[2],sigL); | |
cc80f89e | 1816 | |
1817 | // ExB | |
1818 | ||
1819 | if (fTPCParam->GetMWPCReadout()==kTRUE){ | |
1820 | Float_t x1=xyz[0]; | |
1821 | fTPCParam->Transform2to2NearestWire(xyz,index); | |
1822 | Float_t dx=xyz[0]-x1; | |
1823 | xyz[1]+=dx*(fTPCParam->GetOmegaTau()); | |
1824 | } | |
1825 | //add nonisochronity (not implemented yet) | |
1826 | ||
1283eee5 | 1827 | } |
fe4da5cc | 1828 | //_____________________________________________________________________________ |
1829 | void AliTPC::Streamer(TBuffer &R__b) | |
1830 | { | |
1831 | // | |
1832 | // Stream an object of class AliTPC. | |
1833 | // | |
1834 | if (R__b.IsReading()) { | |
1835 | Version_t R__v = R__b.ReadVersion(); if (R__v) { } | |
1836 | AliDetector::Streamer(R__b); | |
39c8eb58 | 1837 | R__b >> fTPCParam; |
fe4da5cc | 1838 | if (R__v < 2) return; |
1839 | R__b >> fNsectors; | |
39c8eb58 | 1840 | R__b >> fHitType; |
1841 | ||
fe4da5cc | 1842 | } else { |
1843 | R__b.WriteVersion(AliTPC::IsA()); | |
1844 | AliDetector::Streamer(R__b); | |
39c8eb58 | 1845 | R__b << fTPCParam; |
fe4da5cc | 1846 | R__b << fNsectors; |
39c8eb58 | 1847 | R__b << fHitType; |
fe4da5cc | 1848 | } |
1849 | } | |
1850 | ||
fe4da5cc | 1851 | ClassImp(AliTPCdigit) |
1852 | ||
1853 | //_____________________________________________________________________________ | |
1854 | AliTPCdigit::AliTPCdigit(Int_t *tracks, Int_t *digits): | |
1855 | AliDigit(tracks) | |
1856 | { | |
1857 | // | |
1858 | // Creates a TPC digit object | |
1859 | // | |
1860 | fSector = digits[0]; | |
1861 | fPadRow = digits[1]; | |
1862 | fPad = digits[2]; | |
1863 | fTime = digits[3]; | |
1864 | fSignal = digits[4]; | |
1865 | } | |
1866 | ||
1867 | ||
1868 | ClassImp(AliTPChit) | |
1869 | ||
1870 | //_____________________________________________________________________________ | |
1871 | AliTPChit::AliTPChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits): | |
1872 | AliHit(shunt,track) | |
1873 | { | |
1874 | // | |
1875 | // Creates a TPC hit object | |
1876 | // | |
1877 | fSector = vol[0]; | |
1878 | fPadRow = vol[1]; | |
1879 | fX = hits[0]; | |
1880 | fY = hits[1]; | |
1881 | fZ = hits[2]; | |
1882 | fQ = hits[3]; | |
1883 | } | |
1884 | ||
8c555625 | 1885 | |
39c8eb58 | 1886 | //________________________________________________________________________ |
1887 | // Additional code because of the AliTPCTrackHits | |
1888 | ||
1889 | void AliTPC::MakeBranch2(Option_t *option) | |
1890 | { | |
1891 | // | |
1892 | // Create a new branch in the current Root Tree | |
1893 | // The branch of fHits is automatically split | |
1894 | // MI change 14.09.2000 | |
1895 | if (fHitType&2==0) return; | |
1896 | char branchname[10]; | |
1897 | sprintf(branchname,"%s2",GetName()); | |
1898 | // | |
1899 | // Get the pointer to the header | |
1900 | char *cH = strstr(option,"H"); | |
1901 | // | |
1902 | if (fTrackHits && gAlice->TreeH() && cH) { | |
1903 | // gAlice->TreeH()->Branch(branchname,&fTrackHits, fBufferSize); | |
1904 | AliObjectBranch * branch = new AliObjectBranch(branchname,"AliTPCTrackHits",&fTrackHits, | |
1905 | gAlice->TreeH(),fBufferSize,1); | |
1906 | gAlice->TreeH()->GetListOfBranches()->Add(branch); | |
1907 | printf("* AliDetector::MakeBranch * Making Branch %s for trackhits\n",branchname); | |
1908 | } | |
1909 | } | |
1910 | ||
1911 | void AliTPC::SetTreeAddress() | |
1912 | { | |
1913 | if (fHitType&1) AliDetector::SetTreeAddress(); | |
1914 | if (fHitType&2) SetTreeAddress2(); | |
1915 | } | |
1916 | ||
1917 | void AliTPC::SetTreeAddress2() | |
1918 | { | |
1919 | // | |
1920 | // Set branch address for the TrackHits Tree | |
1921 | // | |
1922 | TBranch *branch; | |
1923 | char branchname[20]; | |
1924 | sprintf(branchname,"%s2",GetName()); | |
1925 | // | |
1926 | // Branch address for hit tree | |
1927 | TTree *treeH = gAlice->TreeH(); | |
1928 | if (treeH) { | |
1929 | branch = treeH->GetBranch(branchname); | |
1930 | if (branch) branch->SetAddress(&fTrackHits); | |
1931 | } | |
1932 | } | |
1933 | ||
1934 | void AliTPC::FinishPrimary() | |
1935 | { | |
1936 | if (fTrackHits) fTrackHits->FlushHitStack(); | |
1937 | } | |
1938 | ||
1939 | ||
1940 | void AliTPC::AddHit2(Int_t track, Int_t *vol, Float_t *hits) | |
1941 | { | |
1942 | // | |
1943 | // add hit to the list | |
1944 | TClonesArray &particles = *(gAlice->Particles()); | |
1945 | Int_t rtrack; | |
1946 | if (fIshunt) { | |
1947 | int primary = gAlice->GetPrimary(track); | |
1948 | ((TParticle *)particles[primary])->SetBit(kKeepBit); | |
1949 | rtrack=primary; | |
1950 | } else { | |
1951 | rtrack=track; | |
1952 | gAlice->FlagTrack(track); | |
1953 | } | |
1954 | //AliTPChit *hit = (AliTPChit*)fHits->UncheckedAt(fNhits-1); | |
1955 | //if (hit->fTrack!=rtrack) | |
1956 | // cout<<"bad track number\n"; | |
1957 | if (fTrackHits) | |
1958 | fTrackHits->AddHitKartez(vol[0],rtrack, hits[0], | |
1959 | hits[1],hits[2],(Int_t)hits[3]); | |
1960 | } | |
1961 | ||
1962 | void AliTPC::ResetHits() | |
1963 | { | |
1964 | if (fHitType&1) AliDetector::ResetHits(); | |
1965 | if (fHitType&2) ResetHits2(); | |
1966 | } | |
1967 | ||
1968 | void AliTPC::ResetHits2() | |
1969 | { | |
1970 | // | |
1971 | //reset hits | |
1972 | if (fTrackHits) fTrackHits->Clear(); | |
1973 | } | |
1974 | ||
1975 | AliHit* AliTPC::FirstHit(Int_t track) | |
1976 | { | |
1977 | if (fHitType&2) return FirstHit2(track); | |
1978 | return AliDetector::FirstHit(track); | |
1979 | } | |
1980 | AliHit* AliTPC::NextHit() | |
1981 | { | |
1982 | if (fHitType&2) return NextHit2(); | |
1983 | return AliDetector::NextHit(); | |
1984 | } | |
1985 | ||
1986 | AliHit* AliTPC::FirstHit2(Int_t track) | |
1987 | { | |
1988 | // | |
1989 | // Initialise the hit iterator | |
1990 | // Return the address of the first hit for track | |
1991 | // If track>=0 the track is read from disk | |
1992 | // while if track<0 the first hit of the current | |
1993 | // track is returned | |
1994 | // | |
1995 | if(track>=0) { | |
1996 | gAlice->ResetHits(); | |
1997 | gAlice->TreeH()->GetEvent(track); | |
1998 | } | |
1999 | // | |
2000 | if (fTrackHits) { | |
2001 | fTrackHits->First(); | |
2002 | return fTrackHits->GetHit(); | |
2003 | } | |
2004 | else return 0; | |
2005 | } | |
2006 | ||
2007 | AliHit* AliTPC::NextHit2() | |
2008 | { | |
2009 | // | |
2010 | //Return the next hit for the current track | |
2011 | ||
2012 | if (fTrackHits) { | |
2013 | fTrackHits->Next(); | |
2014 | return fTrackHits->GetHit(); | |
2015 | } | |
2016 | else | |
2017 | return 0; | |
2018 | } | |
2019 | ||
2020 | void AliTPC::LoadPoints(Int_t) | |
2021 | { | |
2022 | // | |
2023 | Int_t a = 0; | |
2024 | LoadPoints2(a); | |
2025 | // LoadPoints3(a); | |
2026 | ||
2027 | } | |
2028 | ||
2029 | ||
2030 | void AliTPC::RemapTrackHitIDs(Int_t *map) | |
2031 | { | |
2032 | if (!fTrackHits) return; | |
2033 | AliObjectArray * arr = fTrackHits->fTrackHitsInfo; | |
2034 | for (UInt_t i=0;i<arr->GetSize();i++){ | |
2035 | AliTrackHitsInfo * info = (AliTrackHitsInfo *)(arr->At(i)); | |
2036 | info->fTrackID = map[info->fTrackID]; | |
2037 | } | |
2038 | ||
2039 | } | |
2040 | ||
2041 | ||
2042 | //_____________________________________________________________________________ | |
2043 | void AliTPC::LoadPoints2(Int_t) | |
2044 | { | |
2045 | // | |
2046 | // Store x, y, z of all hits in memory | |
2047 | // | |
2048 | if (fTrackHits == 0) return; | |
2049 | // | |
2050 | Int_t nhits = fTrackHits->GetEntriesFast(); | |
2051 | if (nhits == 0) return; | |
2052 | Int_t tracks = gAlice->GetNtrack(); | |
2053 | if (fPoints == 0) fPoints = new TObjArray(tracks); | |
2054 | AliHit *ahit; | |
2055 | // | |
2056 | Int_t *ntrk=new Int_t[tracks]; | |
2057 | Int_t *limi=new Int_t[tracks]; | |
2058 | Float_t **coor=new Float_t*[tracks]; | |
2059 | for(Int_t i=0;i<tracks;i++) { | |
2060 | ntrk[i]=0; | |
2061 | coor[i]=0; | |
2062 | limi[i]=0; | |
2063 | } | |
2064 | // | |
2065 | AliPoints *points = 0; | |
2066 | Float_t *fp=0; | |
2067 | Int_t trk; | |
2068 | Int_t chunk=nhits/4+1; | |
2069 | // | |
2070 | // Loop over all the hits and store their position | |
2071 | // | |
2072 | ahit = FirstHit2(-1); | |
2073 | //for (Int_t hit=0;hit<nhits;hit++) { | |
2074 | while (ahit){ | |
2075 | // ahit = (AliHit*)fHits->UncheckedAt(hit); | |
2076 | trk=ahit->GetTrack(); | |
2077 | if(ntrk[trk]==limi[trk]) { | |
2078 | // | |
2079 | // Initialise a new track | |
2080 | fp=new Float_t[3*(limi[trk]+chunk)]; | |
2081 | if(coor[trk]) { | |
2082 | memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]); | |
2083 | delete [] coor[trk]; | |
2084 | } | |
2085 | limi[trk]+=chunk; | |
2086 | coor[trk] = fp; | |
2087 | } else { | |
2088 | fp = coor[trk]; | |
2089 | } | |
2090 | fp[3*ntrk[trk] ] = ahit->X(); | |
2091 | fp[3*ntrk[trk]+1] = ahit->Y(); | |
2092 | fp[3*ntrk[trk]+2] = ahit->Z(); | |
2093 | ntrk[trk]++; | |
2094 | ahit = NextHit2(); | |
2095 | } | |
2096 | // | |
2097 | for(trk=0; trk<tracks; ++trk) { | |
2098 | if(ntrk[trk]) { | |
2099 | points = new AliPoints(); | |
2100 | points->SetMarkerColor(GetMarkerColor()); | |
2101 | points->SetMarkerSize(GetMarkerSize()); | |
2102 | points->SetDetector(this); | |
2103 | points->SetParticle(trk); | |
2104 | points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()); | |
2105 | fPoints->AddAt(points,trk); | |
2106 | delete [] coor[trk]; | |
2107 | coor[trk]=0; | |
2108 | } | |
2109 | } | |
2110 | delete [] coor; | |
2111 | delete [] ntrk; | |
2112 | delete [] limi; | |
2113 | } | |
2114 | ||
2115 | ||
2116 | //_____________________________________________________________________________ | |
2117 | void AliTPC::LoadPoints3(Int_t) | |
2118 | { | |
2119 | // | |
2120 | // Store x, y, z of all hits in memory | |
2121 | // - only intersection point with pad row | |
2122 | if (fTrackHits == 0) return; | |
2123 | // | |
2124 | Int_t nhits = fTrackHits->GetEntriesFast(); | |
2125 | if (nhits == 0) return; | |
2126 | Int_t tracks = gAlice->GetNtrack(); | |
2127 | if (fPoints == 0) fPoints = new TObjArray(2*tracks); | |
2128 | fPoints->Expand(2*tracks); | |
2129 | AliHit *ahit; | |
2130 | // | |
2131 | Int_t *ntrk=new Int_t[tracks]; | |
2132 | Int_t *limi=new Int_t[tracks]; | |
2133 | Float_t **coor=new Float_t*[tracks]; | |
2134 | for(Int_t i=0;i<tracks;i++) { | |
2135 | ntrk[i]=0; | |
2136 | coor[i]=0; | |
2137 | limi[i]=0; | |
2138 | } | |
2139 | // | |
2140 | AliPoints *points = 0; | |
2141 | Float_t *fp=0; | |
2142 | Int_t trk; | |
2143 | Int_t chunk=nhits/4+1; | |
2144 | // | |
2145 | // Loop over all the hits and store their position | |
2146 | // | |
2147 | ahit = FirstHit2(-1); | |
2148 | //for (Int_t hit=0;hit<nhits;hit++) { | |
2149 | ||
2150 | Int_t lastrow = -1; | |
2151 | while (ahit){ | |
2152 | // ahit = (AliHit*)fHits->UncheckedAt(hit); | |
2153 | trk=ahit->GetTrack(); | |
2154 | Float_t x[3]={ahit->X(),ahit->Y(),ahit->Z()}; | |
2155 | Int_t index[3]={1,((AliTPChit*)ahit)->fSector,0}; | |
2156 | Int_t currentrow = fTPCParam->GetPadRow(x,index) ; | |
2157 | if (currentrow!=lastrow){ | |
2158 | lastrow = currentrow; | |
2159 | //later calculate intersection point | |
2160 | if(ntrk[trk]==limi[trk]) { | |
2161 | // | |
2162 | // Initialise a new track | |
2163 | fp=new Float_t[3*(limi[trk]+chunk)]; | |
2164 | if(coor[trk]) { | |
2165 | memcpy(fp,coor[trk],sizeof(Float_t)*3*limi[trk]); | |
2166 | delete [] coor[trk]; | |
2167 | } | |
2168 | limi[trk]+=chunk; | |
2169 | coor[trk] = fp; | |
2170 | } else { | |
2171 | fp = coor[trk]; | |
2172 | } | |
2173 | fp[3*ntrk[trk] ] = ahit->X(); | |
2174 | fp[3*ntrk[trk]+1] = ahit->Y(); | |
2175 | fp[3*ntrk[trk]+2] = ahit->Z(); | |
2176 | ntrk[trk]++; | |
2177 | } | |
2178 | ahit = NextHit2(); | |
2179 | } | |
2180 | ||
2181 | // | |
2182 | for(trk=0; trk<tracks; ++trk) { | |
2183 | if(ntrk[trk]) { | |
2184 | points = new AliPoints(); | |
2185 | points->SetMarkerColor(GetMarkerColor()+1); | |
2186 | points->SetMarkerStyle(5); | |
2187 | points->SetMarkerSize(0.2); | |
2188 | points->SetDetector(this); | |
2189 | points->SetParticle(trk); | |
2190 | // points->SetPolyMarker(ntrk[trk],coor[trk],GetMarkerStyle()20); | |
2191 | points->SetPolyMarker(ntrk[trk],coor[trk],30); | |
2192 | fPoints->AddAt(points,tracks+trk); | |
2193 | delete [] coor[trk]; | |
2194 | coor[trk]=0; | |
2195 | } | |
2196 | } | |
2197 | delete [] coor; | |
2198 | delete [] ntrk; | |
2199 | delete [] limi; | |
2200 | } | |
2201 | ||
2202 | ||
2203 | ||
2204 | void AliTPC::FindTrackHitsIntersection(TClonesArray * arr) | |
2205 | { | |
2206 | ||
2207 | // | |
2208 | //fill clones array with intersection of current point with the | |
2209 | //middle of the row | |
2210 | Int_t sector; | |
2211 | Int_t ipart; | |
2212 | ||
2213 | const Int_t kcmaxhits=30000; | |
2214 | TVector * xxxx = new TVector(kcmaxhits*4); | |
2215 | TVector & xxx = *xxxx; | |
2216 | Int_t maxhits = kcmaxhits; | |
2217 | ||
2218 | // | |
2219 | AliTPChit * tpcHit=0; | |
2220 | tpcHit = (AliTPChit*)FirstHit2(-1); | |
2221 | Int_t currentIndex=0; | |
2222 | Int_t lastrow=-1; //last writen row | |
2223 | ||
2224 | while (tpcHit){ | |
2225 | if (tpcHit==0) continue; | |
2226 | sector=tpcHit->fSector; // sector number | |
2227 | ipart=tpcHit->Track(); | |
2228 | ||
2229 | //find row number | |
2230 | ||
2231 | Float_t x[3]={tpcHit->X(),tpcHit->Y(),tpcHit->Z()}; | |
2232 | Int_t index[3]={1,sector,0}; | |
2233 | Int_t currentrow = fTPCParam->GetPadRow(x,index) ; | |
2234 | if (currentrow<0) continue; | |
2235 | if (lastrow<0) lastrow=currentrow; | |
2236 | if (currentrow==lastrow){ | |
2237 | if ( currentIndex>=maxhits){ | |
2238 | maxhits+=kcmaxhits; | |
2239 | xxx.ResizeTo(4*maxhits); | |
2240 | } | |
2241 | xxx(currentIndex*4)=x[0]; | |
2242 | xxx(currentIndex*4+1)=x[1]; | |
2243 | xxx(currentIndex*4+2)=x[2]; | |
2244 | xxx(currentIndex*4+3)=tpcHit->fQ; | |
2245 | currentIndex++; | |
2246 | } | |
2247 | else | |
2248 | if (currentIndex>2){ | |
2249 | Float_t sumx=0; | |
2250 | Float_t sumx2=0; | |
2251 | Float_t sumx3=0; | |
2252 | Float_t sumx4=0; | |
2253 | Float_t sumy=0; | |
2254 | Float_t sumxy=0; | |
2255 | Float_t sumx2y=0; | |
2256 | Float_t sumz=0; | |
2257 | Float_t sumxz=0; | |
2258 | Float_t sumx2z=0; | |
2259 | Float_t sumq=0; | |
2260 | for (Int_t index=0;index<currentIndex;index++){ | |
2261 | Float_t x,x2,x3,x4; | |
2262 | x=x2=x3=x4=xxx(index*4); | |
2263 | x2*=x; | |
2264 | x3*=x2; | |
2265 | x4*=x3; | |
2266 | sumx+=x; | |
2267 | sumx2+=x2; | |
2268 | sumx3+=x3; | |
2269 | sumx4+=x4; | |
2270 | sumy+=xxx(index*4+1); | |
2271 | sumxy+=xxx(index*4+1)*x; | |
2272 | sumx2y+=xxx(index*4+1)*x2; | |
2273 | sumz+=xxx(index*4+2); | |
2274 | sumxz+=xxx(index*4+2)*x; | |
2275 | sumx2z+=xxx(index*4+2)*x2; | |
2276 | sumq+=xxx(index*4+3); | |
2277 | } | |
2278 | Float_t centralPad = (fTPCParam->GetNPads(sector,lastrow)-1)/2; | |
2279 | Float_t det=currentIndex*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumx*sumx4-sumx2*sumx3)+ | |
2280 | sumx2*(sumx*sumx3-sumx2*sumx2); | |
2281 | ||
2282 | Float_t detay=sumy*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxy*sumx4-sumx2y*sumx3)+ | |
2283 | sumx2*(sumxy*sumx3-sumx2y*sumx2); | |
2284 | Float_t detaz=sumz*(sumx2*sumx4-sumx3*sumx3)-sumx*(sumxz*sumx4-sumx2z*sumx3)+ | |
2285 | sumx2*(sumxz*sumx3-sumx2z*sumx2); | |
2286 | ||
2287 | Float_t detby=currentIndex*(sumxy*sumx4-sumx2y*sumx3)-sumy*(sumx*sumx4-sumx2*sumx3)+ | |
2288 | sumx2*(sumx*sumx2y-sumx2*sumxy); | |
2289 | Float_t detbz=currentIndex*(sumxz*sumx4-sumx2z*sumx3)-sumz*(sumx*sumx4-sumx2*sumx3)+ | |
2290 | sumx2*(sumx*sumx2z-sumx2*sumxz); | |
2291 | ||
2292 | Float_t y=detay/det+centralPad; | |
2293 | Float_t z=detaz/det; | |
2294 | Float_t by=detby/det; //y angle | |
2295 | Float_t bz=detbz/det; //z angle | |
2296 | sumy/=Float_t(currentIndex); | |
2297 | sumz/=Float_t(currentIndex); | |
2298 | ||
2299 | AliComplexCluster cl; | |
2300 | cl.fX=z; | |
2301 | cl.fY=y; | |
2302 | cl.fQ=sumq; | |
2303 | cl.fSigmaX2=bz; | |
2304 | cl.fSigmaY2=by; | |
2305 | cl.fTracks[0]=ipart; | |
2306 | ||
2307 | AliTPCClustersRow * row = (fClustersArray->GetRow(sector,lastrow)); | |
2308 | if (row!=0) row->InsertCluster(&cl); | |
2309 | currentIndex=0; | |
2310 | lastrow=currentrow; | |
2311 | } //end of calculating cluster for given row | |
2312 | ||
2313 | } // end of loop over hits | |
2314 | xxxx->Delete(); | |
2315 | ||
2316 | ||
2317 | ||
2318 | } |