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18e1354a | 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 | /////////////////////////////////////////////////////////////////////////// | |
18 | /* | |
19 | ||
20 | Origin: marian.ivanov@cern.ch | |
21 | Container classes with MC infomation | |
22 | ||
23 | The AliMCInfo contains the information about the particles properties | |
24 | during transportation throuch ALICE Detector | |
25 | ||
26 | The base Information : | |
27 | TParticle - fParticle - properties of the particle at creation point | |
28 | AliTrackReference - fXXXRefernces - TClonesArray of refernces in differnt detectors | |
29 | fNXXXRef - number of the track refernces in differnt detectors | |
30 | AliTPCdigitRow - fTPCRow - the map of the hitted rows - (will be repalced by TBits) | |
31 | fRowsWith* - number of rows hitted by particle | |
32 | fMCtracks - - number of turn over of the track inside of the TPC | |
33 | ||
34 | ++++ | |
35 | some additional information usable for tree draw - TO SPEED UP tree queries | |
36 | IMPORTANT FOR PROOF FAST PROTOTYPING ANALYSIS | |
37 | ||
38 | ||
39 | ||
40 | ||
41 | */ | |
42 | ||
43 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
44 | #include <stdio.h> | |
45 | //ROOT includes | |
46 | #include "Rtypes.h" | |
47 | #include "TClonesArray.h" | |
48 | //ALIROOT includes | |
49 | #include "AliTrackReference.h" | |
50 | #include "AliMCInfo.h" | |
51 | #include "AliMathBase.h" | |
52 | #endif | |
53 | ||
54 | // | |
55 | // | |
56 | ||
57 | ClassImp(AliTPCdigitRow) | |
58 | ClassImp(AliMCInfo) | |
59 | ||
60 | ||
61 | ||
62 | //////////////////////////////////////////////////////////////////////// | |
63 | AliMCInfo::AliMCInfo(): | |
64 | fTrackRef(), | |
65 | fTrackRefOut(), | |
66 | fTRdecay(), | |
67 | fPrimPart(0), | |
68 | fParticle(), | |
69 | fMass(0), | |
70 | fCharge(0), | |
71 | fLabel(0), | |
72 | fEventNr(), | |
73 | fMCtracks(), | |
74 | fPdg(0), | |
75 | fTPCdecay(0), | |
76 | fRowsWithDigitsInn(0), | |
77 | fRowsWithDigits(0), | |
78 | fRowsTrackLength(0), | |
79 | fTPCtrackLength(-1), | |
80 | fPrim(0), | |
81 | fTPCRow(), | |
82 | fNTPCRef(0), // tpc references counter | |
83 | fNITSRef(0), // ITS references counter | |
84 | fNTRDRef(0), // TRD references counter | |
85 | fNTOFRef(0), // TOF references counter | |
86 | fNTPCRefOut(0), // tpc references counter | |
87 | fNITSRefOut(0), // ITS references counter | |
88 | fNTRDRefOut(0), // TRD references counter | |
89 | fNTOFRefOut(0), // TOF references counter | |
90 | fTPCReferences(0), | |
91 | fITSReferences(0), | |
92 | fTRDReferences(0), | |
93 | fTOFReferences(0) | |
94 | { | |
95 | // | |
96 | // Default constructor | |
97 | // | |
98 | fTPCReferences = new TClonesArray("AliTrackReference",10); | |
99 | fITSReferences = new TClonesArray("AliTrackReference",10); | |
100 | fTRDReferences = new TClonesArray("AliTrackReference",10); | |
101 | fTOFReferences = new TClonesArray("AliTrackReference",10); | |
102 | fTRdecay.SetTrack(-1); | |
103 | for (Int_t i=0;i<4;i++) fVDist[i]=0; | |
104 | for (Int_t i=0;i<3;i++) fDecayCoord[i]=0; | |
105 | fCharge = 0; | |
106 | } | |
107 | ||
108 | AliMCInfo::AliMCInfo(const AliMCInfo& info): | |
109 | TObject(), | |
110 | fTrackRef(info.fTrackRef), | |
111 | fTrackRefOut(info.fTrackRefOut), | |
112 | fTRdecay(info.GetTRdecay()), | |
113 | fPrimPart(info.fPrimPart), | |
114 | fParticle(info.fParticle), | |
115 | fMass(info.GetMass()), | |
116 | fCharge(info.fCharge), | |
117 | fLabel(info.fLabel), | |
118 | fEventNr(info.fEventNr), | |
119 | fMCtracks(info.fMCtracks), | |
120 | fPdg(info.fPdg), | |
121 | fTPCdecay(info.fTPCdecay), | |
122 | fRowsWithDigitsInn(info.fRowsWithDigitsInn), | |
123 | fRowsWithDigits(info.fRowsWithDigits), | |
124 | fRowsTrackLength(info.fRowsTrackLength), | |
125 | fTPCtrackLength(info.fTPCtrackLength), | |
126 | fPrim(info.fPrim), | |
127 | fTPCRow(info.fTPCRow), | |
128 | fNTPCRef(info.fNTPCRef), // tpc references counter | |
129 | fNITSRef(info.fNITSRef), // ITS references counter | |
130 | fNTRDRef(info.fNTRDRef), // TRD references counter | |
131 | fNTOFRef(info.fNTOFRef), // TOF references counter | |
132 | fNTPCRefOut(info.fNTPCRefOut), // tpc references counter | |
133 | fNITSRefOut(info.fNITSRefOut), // ITS references counter | |
134 | fNTRDRefOut(info.fNTRDRefOut), // TRD references counter | |
135 | fNTOFRefOut(info.fNTOFRefOut), // TOF references counter | |
136 | fTPCReferences(0), | |
137 | fITSReferences(0), | |
138 | fTRDReferences(0), | |
139 | fTOFReferences(0) | |
140 | { | |
141 | // | |
142 | // copy constructor | |
143 | // | |
144 | fTPCReferences = (TClonesArray*)info.fTPCReferences->Clone(); | |
145 | fITSReferences = (TClonesArray*)info.fITSReferences->Clone(); | |
146 | fTRDReferences = (TClonesArray*)info.fTRDReferences->Clone(); | |
147 | fTOFReferences = (TClonesArray*)info.fTOFReferences->Clone(); | |
148 | for (Int_t i=0;i<4;i++) fVDist[i]=info.fVDist[i]; | |
149 | for (Int_t i=0;i<3;i++) fDecayCoord[i]=info.fDecayCoord[i]; | |
150 | ||
151 | } | |
152 | ||
153 | ||
154 | AliMCInfo& AliMCInfo::operator=(const AliMCInfo& info) { | |
155 | // | |
156 | // Assignment operator | |
157 | // | |
158 | this->~AliMCInfo(); | |
159 | new (this) AliMCInfo(info); | |
160 | return *this; | |
161 | } | |
162 | ||
163 | ||
164 | AliMCInfo::~AliMCInfo() | |
165 | { | |
166 | // | |
167 | // Destructor of the class | |
168 | // | |
169 | if (fTPCReferences) { | |
170 | delete fTPCReferences; | |
171 | } | |
172 | if (fITSReferences){ | |
173 | delete fITSReferences; | |
174 | } | |
175 | if (fTRDReferences){ | |
176 | delete fTRDReferences; | |
177 | } | |
178 | if (fTOFReferences){ | |
179 | delete fTOFReferences; | |
180 | } | |
181 | ||
182 | } | |
183 | ||
184 | ||
185 | ||
186 | ||
187 | void AliMCInfo::Update() | |
188 | { | |
189 | // | |
190 | // Update MC info | |
191 | // Calculates some derived variables | |
192 | // | |
193 | // | |
194 | fMCtracks =1; | |
195 | // | |
196 | // decay info | |
197 | fTPCdecay=kFALSE; | |
198 | if (fTRdecay.GetTrack()>0){ | |
199 | fDecayCoord[0] = fTRdecay.X(); | |
200 | fDecayCoord[1] = fTRdecay.Y(); | |
201 | fDecayCoord[2] = fTRdecay.Z(); | |
202 | if ( (fTRdecay.R()<250)&&(fTRdecay.R()>85) && (TMath::Abs(fTRdecay.Z())<250) ){ | |
203 | fTPCdecay=kTRUE; | |
204 | } | |
205 | else{ | |
206 | fDecayCoord[0] = 0; | |
207 | fDecayCoord[1] = 0; | |
208 | fDecayCoord[2] = 0; | |
209 | } | |
210 | } | |
211 | // | |
212 | // | |
213 | //digits information update | |
214 | fRowsWithDigits = fTPCRow.RowsOn(); | |
215 | fRowsWithDigitsInn = fTPCRow.RowsOn(63); // 63 = number of inner rows | |
216 | fRowsTrackLength = fTPCRow.Last() - fTPCRow.First(); | |
217 | // | |
218 | // | |
219 | // calculate primary ionization per cm | |
220 | if (fParticle.GetPDG()){ | |
221 | fMass = fParticle.GetMass(); | |
222 | fCharge = fParticle.GetPDG()->Charge(); | |
223 | if (fTPCReferences->GetEntriesFast()>0){ | |
224 | fTrackRef = *((AliTrackReference*)fTPCReferences->At(0)); | |
225 | } | |
226 | if (fMass>0){ | |
227 | Float_t p = TMath::Sqrt(fTrackRef.Px()*fTrackRef.Px()+ | |
228 | fTrackRef.Py()*fTrackRef.Py()+ | |
229 | fTrackRef.Pz()*fTrackRef.Pz()); | |
230 | if (p>0.001){ | |
231 | Float_t betagama = p /fMass; | |
232 | fPrim = AliMathBase::BetheBlochAleph(betagama); | |
233 | }else fPrim=0; | |
234 | } | |
235 | }else{ | |
236 | fMass =0; | |
237 | fPrim =0; | |
238 | } | |
239 | ||
240 | ||
241 | ||
242 | } | |
243 | ||
244 | ||
245 | ||
246 | ||
247 | //////////////////////////////////////////////////////////////////////// | |
248 | AliTPCdigitRow::AliTPCdigitRow() | |
249 | { | |
250 | Reset(); | |
251 | } | |
252 | //////////////////////////////////////////////////////////////////////// | |
253 | AliTPCdigitRow & AliTPCdigitRow::operator=(const AliTPCdigitRow &digOld) | |
254 | { | |
255 | for (Int_t i = 0; i<32; i++) fDig[i] = digOld.fDig[i]; | |
256 | return (*this); | |
257 | } | |
258 | //////////////////////////////////////////////////////////////////////// | |
259 | void AliTPCdigitRow::SetRow(Int_t row) | |
260 | { | |
261 | // | |
262 | // set bit mask for given row | |
263 | // | |
264 | if (row >= 8*32) { | |
265 | // cerr<<"AliTPCdigitRow::SetRow: index "<<row<<" out of bounds."<<endl; | |
266 | return; | |
267 | } | |
268 | Int_t iC = row/8; | |
269 | Int_t iB = row%8; | |
270 | SETBIT(fDig[iC],iB); | |
271 | } | |
272 | ||
273 | //////////////////////////////////////////////////////////////////////// | |
274 | Bool_t AliTPCdigitRow::TestRow(Int_t row) const | |
275 | { | |
276 | // | |
277 | // return kTRUE if row is on | |
278 | // | |
279 | Int_t iC = row/8; | |
280 | Int_t iB = row%8; | |
281 | return TESTBIT(fDig[iC],iB); | |
282 | } | |
283 | //////////////////////////////////////////////////////////////////////// | |
284 | Int_t AliTPCdigitRow::RowsOn(Int_t upto) const | |
285 | { | |
286 | // | |
287 | // returns number of rows with a digit | |
288 | // count only rows less equal row number upto | |
289 | // | |
290 | Int_t total = 0; | |
291 | for (Int_t i = 0; i<32; i++) { | |
292 | for (Int_t j = 0; j < 8; j++) { | |
293 | if (i*8+j > upto) return total; | |
294 | if (TESTBIT(fDig[i],j)) total++; | |
295 | } | |
296 | } | |
297 | return total; | |
298 | } | |
299 | //////////////////////////////////////////////////////////////////////// | |
300 | void AliTPCdigitRow::Reset() | |
301 | { | |
302 | // | |
303 | // resets all rows to zero | |
304 | // | |
305 | for (Int_t i = 0; i<32; i++) { | |
306 | fDig[i] <<= 8; | |
307 | } | |
308 | } | |
309 | //////////////////////////////////////////////////////////////////////// | |
310 | Int_t AliTPCdigitRow::Last() const | |
311 | { | |
312 | // | |
313 | // returns the last row number with a digit | |
314 | // returns -1 if now digits | |
315 | // | |
316 | for (Int_t i = 32-1; i>=0; i--) { | |
317 | for (Int_t j = 7; j >= 0; j--) { | |
318 | if TESTBIT(fDig[i],j) return i*8+j; | |
319 | } | |
320 | } | |
321 | return -1; | |
322 | } | |
323 | //////////////////////////////////////////////////////////////////////// | |
324 | Int_t AliTPCdigitRow::First() const | |
325 | { | |
326 | // | |
327 | // returns the first row number with a digit | |
328 | // returns -1 if now digits | |
329 | // | |
330 | for (Int_t i = 0; i<32; i++) { | |
331 | for (Int_t j = 0; j < 8; j++) { | |
332 | if (TESTBIT(fDig[i],j)) return i*8+j; | |
333 | } | |
334 | } | |
335 | return -1; | |
336 | } | |
337 | ||
338 | ||
339 | void AliMCInfo::Clear(Option_t* ){ | |
340 | // | |
341 | // clear the content | |
342 | // | |
343 | if (fTPCReferences) fTPCReferences->Clear(); | |
344 | if (fITSReferences) fITSReferences->Clear(); | |
345 | if (fTRDReferences) fTRDReferences->Clear(); | |
346 | if (fTOFReferences) fTOFReferences->Clear(); | |
347 | for (Int_t i=0;i<4;i++) fVDist[i]=0; | |
348 | for (Int_t i=0;i<3;i++) fDecayCoord[i]=0; | |
349 | fTRdecay.SetTrack(-1); | |
350 | fCharge = 0; | |
351 | fEventNr=-1; | |
352 | fPrimPart=-1; // index of primary particle in TreeH | |
353 | fMass=0; // mass of the particle | |
354 | fCharge=0; // charge of the particle | |
355 | fLabel=0; // track label | |
356 | fEventNr=0; // event number | |
357 | fMCtracks=0; // indication of how many times the track is retuturned back | |
358 | fPdg=0; //pdg code | |
359 | fTPCdecay=0; //indicates decay in TPC | |
360 | fRowsWithDigitsInn=0; // number of rows with digits in the inner sectors | |
361 | fRowsWithDigits=0; // number of rows with digits in the outer sectors | |
362 | fRowsTrackLength=0; // last - first row with digit | |
363 | fTPCtrackLength=0; // distance between first and last track reference | |
364 | fPrim=0; // theoretical dedx in tpc according particle momenta and mass | |
365 | fNTPCRef=0; // tpc references counter | |
366 | fNITSRef=0; // ITS references counter | |
367 | fNTRDRef=0; // TRD references counter | |
368 | fNTOFRef=0; // TOF references counter | |
369 | // | |
370 | fNTPCRefOut=0; // tpc references counter - out | |
371 | fNITSRefOut=0; // ITS references counter - out | |
372 | fNTRDRefOut=0; // TRD references counter - out | |
373 | fNTOFRefOut=0; // TOF references counter - out | |
374 | } | |
375 | ||
376 | ||
377 | ||
378 | void AliMCInfo::CalcTPCrows(TClonesArray * runArrayTR){ | |
379 | // | |
380 | // Calculates the numebr of the track references for detectors | |
381 | // In case of changing direction - curling tracks - the counter is not increasing | |
382 | // | |
383 | // Rough calculation | |
384 | // of the first and last point in the TPC | |
385 | // | |
386 | fNTPCRef = 0; | |
387 | fNITSRef = 0; | |
388 | fNTRDRef = 0; | |
389 | fNTOFRef = 0; | |
390 | fNTPCRefOut = 0; | |
391 | fNITSRefOut = 0; | |
392 | fNTRDRefOut = 0; | |
393 | fNTOFRefOut = 0; | |
394 | // | |
395 | // | |
396 | Float_t tpcminRadius=TMath::Max(90., fParticle.R()); | |
397 | Float_t tpcmaxRadius=TMath::Min(250.,fParticle.R()); | |
398 | Int_t nover=-1; | |
399 | ||
400 | if (runArrayTR->GetEntriesFast()>0){ | |
401 | nover=0; | |
402 | AliTrackReference *ref0 = (AliTrackReference*)runArrayTR->At(0); | |
403 | Float_t dir = ((ref0->X()*ref0->Px()+ref0->Y()*ref0->Py())>0)? 1.:-1.; //inside or outside | |
404 | // | |
405 | // | |
406 | for (Int_t iTrackRef = 0; iTrackRef < runArrayTR->GetEntriesFast(); iTrackRef++) { | |
407 | // | |
408 | AliTrackReference *ref = (AliTrackReference*)runArrayTR->At(iTrackRef); | |
409 | Float_t newdirection = ((ref->X()*ref->Px()+ref->Y()*ref->Py())>0)? 1.:-1.; //inside or outside | |
410 | // | |
411 | // | |
412 | if (dir*newdirection<0.0) { | |
413 | nover++; | |
414 | dir = newdirection; | |
415 | } | |
416 | // | |
417 | if (ref->DetectorId()== AliTrackReference::kTRD){ | |
418 | if (nover==0) { | |
419 | tpcmaxRadius =250; | |
420 | fNTRDRefOut++; | |
421 | } | |
422 | fNTRDRef++; | |
423 | } | |
424 | if (ref->DetectorId()== AliTrackReference::kITS){ | |
425 | if (nover==0) { | |
426 | fNITSRefOut++; | |
427 | tpcminRadius =90; | |
428 | } | |
429 | fNITSRef++; | |
430 | } | |
431 | if (ref->DetectorId()== AliTrackReference::kTOF){ | |
432 | fNTOFRef++; | |
433 | if (nover==0) { | |
434 | fNTOFRefOut++; | |
435 | tpcmaxRadius =250; | |
436 | } | |
437 | } | |
438 | // | |
439 | if (ref->DetectorId()== AliTrackReference::kTPC){ | |
440 | fNTPCRef++; | |
441 | if (nover==0) { | |
442 | fNTPCRefOut++; | |
443 | fTrackRefOut = (*ref); | |
444 | if (ref->R()>tpcmaxRadius) tpcmaxRadius = ref->R(); | |
445 | if (ref->R()<tpcminRadius) tpcminRadius = ref->R(); | |
446 | } | |
447 | } | |
448 | if (ref->DetectorId()== AliTrackReference::kDisappeared){ | |
449 | if (nover==0 &&TMath::Abs(ref->Z())<250){ | |
450 | tpcmaxRadius = TMath::Min(Float_t(250.),ref->R()); | |
451 | } | |
452 | } | |
453 | } | |
454 | } // if we have track refs | |
455 | fTPCtrackLength = tpcmaxRadius-tpcminRadius; | |
456 | fMCtracks=nover+1; | |
457 | } | |
458 | ||
459 | // | |
460 | // | |
461 | // | |
462 | ||
463 | ||
464 | ||
465 | void AliMCInfo::Update(TParticle * part, TClonesArray * runArrayTR, Double_t pvertex[4], Int_t label){ | |
466 | // | |
467 | // | |
468 | // | |
469 | Clear(); | |
470 | fLabel=label; | |
471 | fParticle=(*part); | |
472 | AliMCInfo *info = this; | |
473 | fVDist[0]=part->Vx()-pvertex[0]; | |
474 | fVDist[1]=part->Vy()-pvertex[1]; | |
475 | fVDist[2]=part->Vz()-pvertex[2]; | |
476 | fVDist[3]=part->R()-pvertex[3]; | |
477 | // | |
478 | // | |
479 | // | |
480 | for (Int_t iTrackRef = 0; iTrackRef < runArrayTR->GetEntriesFast(); iTrackRef++) { | |
481 | AliTrackReference *trackRef = (AliTrackReference*)runArrayTR->At(iTrackRef); | |
18e1354a | 482 | if (trackRef->DetectorId()== AliTrackReference::kTPC){ |
483 | TClonesArray & arr = *(info->fTPCReferences); | |
484 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
485 | } | |
486 | if (trackRef->DetectorId()== AliTrackReference::kITS){ | |
487 | TClonesArray & arr = *(info->fITSReferences); | |
488 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
489 | } | |
490 | if (trackRef->DetectorId()== AliTrackReference::kTRD){ | |
491 | TClonesArray & arr = *(info->fTRDReferences); | |
492 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
493 | } | |
494 | if (trackRef->DetectorId()== AliTrackReference::kTOF){ | |
495 | TClonesArray & arr = *(info->fTOFReferences); | |
496 | new (arr[arr.GetEntriesFast()]) AliTrackReference(*trackRef); | |
497 | } | |
498 | // | |
499 | // decay case | |
500 | // | |
501 | if (trackRef->DetectorId()== AliTrackReference::kDisappeared){ | |
502 | info->fTRdecay = *trackRef; | |
503 | } | |
504 | } | |
505 | // | |
506 | Update(); | |
507 | CalcTPCrows(runArrayTR); | |
508 | } | |
509 |