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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 | // This is a TTask for reconstruction V2 in TOF | |
18 | // Description of the algorithm | |
19 | //-- Author: F. Pierella | pierella@bo.infn.it | |
20 | ////////////////////////////////////////////////////////////////////////////// | |
21 | ||
22 | #include "TBenchmark.h" | |
23 | #include "TFile.h" | |
24 | #include "TFolder.h" | |
25 | #include "TParticle.h" | |
26 | #include "TTask.h" | |
27 | #include "TTree.h" | |
28 | #include "TClonesArray.h" | |
29 | #include "TROOT.h" | |
30 | #include "TSystem.h" | |
31 | #include <stdlib.h> | |
32 | #include <Riostream.h> | |
33 | #include <Riostream.h> | |
34 | #include "TGeant3.h" | |
35 | #include "TVirtualMC.h" | |
36 | ||
37 | #include "AliDetector.h" | |
38 | #include "AliRun.h" | |
39 | #include "AliTOF.h" | |
40 | #include "AliTOFDigitMap.h" | |
41 | #include "AliTOFHitMap.h" | |
42 | #include "AliTOFhitT0.h" | |
43 | #include "AliTOFdigit.h" | |
44 | #include "AliTOFConstants.h" | |
45 | #include "AliTOFReconstructionerV2.h" | |
46 | #include "AliTOFTrackV2.h" | |
47 | ||
48 | #include "AliKalmanTrack.h" | |
49 | #include "../TPC/AliTPCtrack.h" | |
50 | #include "../TRD/AliTRDtrack.h" | |
51 | ||
52 | ClassImp(AliTOFReconstructionerV2) | |
53 | ||
54 | //____________________________________________________________________________ | |
55 | AliTOFReconstructionerV2::AliTOFReconstructionerV2():TTask("AliTOFReconstructionerV2","") | |
56 | { | |
57 | // | |
58 | // std ctor | |
59 | // set all member vars to zero | |
60 | // | |
61 | fdbg =0; | |
62 | fDigitsMap=0x0; | |
63 | fField =0; | |
64 | fNDummyTracks=0; | |
65 | fScaleSigmaFactor=0.; | |
66 | fStep =0; | |
67 | fTOFDigits=0x0; | |
68 | fTOFTracks=0x0; | |
69 | fTOFDigitsFile ="digits.root"; | |
70 | fTPCBackTracksFile="AliTPCBackTracks.root"; | |
71 | fKalmanTree =0x0; | |
72 | fBranchWithTracks =0x0; | |
73 | } | |
74 | ||
75 | //____________________________________________________________________________ | |
76 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(char* tpcBackTracks, char* tofDigits):TTask("AliTOFReconstructionerV2","") | |
77 | { | |
78 | // | |
79 | // par ctor | |
80 | // default arguments are specified only in | |
81 | // the header file | |
82 | // Parameters: | |
83 | // tpcBackTracks -> file name with backpropagated tracks in TPC | |
84 | // tofDigits -> file name with TOF digits | |
85 | // | |
86 | ||
87 | fdbg =0; | |
88 | fDigitsMap=0x0; | |
89 | fField =0.2; // default value 0.2 [Tesla] | |
90 | fNDummyTracks=20; // by default 20 test tracks used | |
91 | fScaleSigmaFactor=1.; | |
92 | fStep =0.01; // [cm] | |
93 | fTOFDigits=0x0; | |
94 | fTOFTracks=0x0; | |
95 | fTOFDigitsFile =tofDigits; | |
96 | fTPCBackTracksFile=tpcBackTracks; | |
97 | fKalmanTree =0x0; | |
98 | fBranchWithTracks =0x0; | |
99 | ||
100 | // initialize the G3 geometry | |
101 | gAlice->Init(); | |
102 | gAlice->Print(); | |
103 | ||
104 | // add Task to //root/Tasks folder | |
105 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
106 | roottasks->Add(this) ; | |
107 | } | |
108 | ||
109 | //____________________________________________________________________________ | |
110 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(const AliTOFReconstructionerV2 & rec) | |
111 | { | |
112 | // | |
113 | // Dummy copy constructor | |
114 | // required by coding conventions | |
115 | ; | |
116 | } | |
117 | ||
118 | ||
119 | ||
120 | //____________________________________________________________________________ | |
121 | AliTOFReconstructionerV2::~AliTOFReconstructionerV2() | |
122 | { | |
123 | // | |
124 | // dtor | |
125 | // some delete has to be moved | |
126 | // | |
127 | ||
128 | if (fDigitsMap) | |
129 | { | |
130 | delete fDigitsMap; | |
131 | fDigitsMap = 0; | |
132 | } | |
133 | ||
134 | if (fTOFDigits) | |
135 | { | |
136 | delete fTOFDigits; | |
137 | fTOFDigits = 0; | |
138 | } | |
139 | ||
140 | if (fTOFTracks) | |
141 | { | |
142 | delete fTOFTracks; | |
143 | fTOFTracks = 0; | |
144 | } | |
145 | ||
146 | if (fTOFDigitsFile) | |
147 | { | |
148 | delete fTOFDigitsFile; | |
149 | } | |
150 | ||
151 | if (fTPCBackTracksFile) | |
152 | { | |
153 | delete fTPCBackTracksFile; | |
154 | } | |
155 | ||
156 | if (fKalmanTree) | |
157 | { | |
158 | delete fKalmanTree; | |
159 | fKalmanTree = 0; | |
160 | } | |
161 | ||
162 | if (fBranchWithTracks) | |
163 | { | |
164 | delete fBranchWithTracks; | |
165 | fBranchWithTracks = 0; | |
166 | } | |
167 | } | |
168 | ||
169 | ||
170 | //____________________________________________________________________________ | |
171 | void AliTOFReconstructionerV2::Exec(Option_t* option) | |
172 | { | |
173 | // | |
174 | // Description of the algorithm: | |
175 | // | |
176 | // | |
177 | // | |
178 | // | |
179 | // | |
180 | // | |
181 | ||
182 | // load TOF digits and fill the digit map | |
183 | Int_t tofDigitsLoading=LoadTOFDigits(); | |
184 | ||
185 | // load back-propagated tracks in TPC | |
186 | Int_t tpcTracksLoading=LoadTPCTracks(); | |
187 | ||
188 | if(tofDigitsLoading || tpcTracksLoading) { | |
189 | cout<<" Couldn't start reconstruction V2. Exit."<<endl; | |
190 | exit(1); | |
191 | } | |
192 | // or load TRD reconstructed tracks | |
193 | // Int_t trdTracksLoading=LoadTRDTracks(); | |
194 | ||
195 | // create a TObjArray to store reconstructed tracks | |
196 | // and reject fake tracks | |
197 | const Int_t maxRecTracks = 10000; // max number of reconstructed tracks | |
198 | // per event | |
199 | ||
200 | const Float_t stripRegionHeight = 15.3; // [cm] height in radial direction | |
201 | // of the volume where strips are placed | |
202 | TObjArray trackArray(maxRecTracks); | |
203 | ||
204 | // buffer for output | |
205 | fTOFTracks= new TClonesArray("AliTOFTrackV2"); | |
206 | // create a reference to fill the TClonesArray | |
207 | TClonesArray &aTOFTracks = *fTOFTracks; | |
208 | ||
209 | const Int_t maxIndex = 100000; // max number of primary tracks to be analysed | |
210 | // the index of the rtIndex array is the track label | |
211 | // the content of the array is -1 for fake tracks | |
212 | // and the track index for good tracks | |
213 | Float_t dEdXarray[maxRecTracks]; | |
214 | Int_t rtIndex[maxIndex]; | |
215 | for(Int_t i = 0; i < maxIndex; i++) rtIndex[i] = -1; | |
216 | ||
217 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
218 | ||
219 | Int_t nRecTracks = (Int_t) fKalmanTree->GetEntries(); | |
220 | cout<<"Found "<<nRecTracks<<" entries in the track tree "<<endl; | |
221 | ||
222 | // load the tracks into the array | |
223 | for (Int_t i=0; i<nRecTracks; i++) { | |
224 | AliTPCtrack *iotrack=new AliTPCtrack(); | |
225 | fBranchWithTracks->SetAddress(&iotrack); | |
226 | fKalmanTree->GetEvent(i); | |
227 | trackArray.AddLast(iotrack); | |
228 | Int_t trackLabel = iotrack->GetLabel(); | |
229 | dEdXarray[i]=iotrack->GetdEdx(); // usefull for PID | |
230 | // | |
231 | // start filling the TClonesArray of AliTOFTrackV2 | |
232 | Float_t trdXYZ[3]={0.,0.,0.}; | |
233 | Float_t trdPxPyPz[3]={0.,0.,0.}; | |
234 | ||
235 | // tpc outer wall positions | |
236 | Double_t xk=iotrack->GetX(); | |
237 | // get the running coordinates in the lrf | |
238 | // and alpha | |
239 | Double_t x=xk; | |
240 | Double_t y=iotrack->GetY(); | |
241 | Double_t z=iotrack->GetZ(); | |
242 | Double_t alpha=iotrack->GetAlpha(); | |
243 | GetGlobalXYZ(alpha, x, y, z); | |
244 | Float_t tpcXYZ[3]={x,y,z}; | |
245 | ||
246 | // momentum at the end of TPC | |
247 | Float_t lambda=TMath::ATan(iotrack->GetTgl()); | |
248 | Float_t invpt=TMath::Abs(iotrack->Get1Pt()); | |
249 | Float_t pt=-99.; | |
250 | if (invpt) pt= 1./invpt; // pt | |
251 | Float_t tpcmom=1./(invpt*TMath::Cos(lambda)); | |
252 | Float_t pz=tpcmom*TMath::Sin(lambda); | |
253 | Float_t tpcPtPz[2]={pt,pz}; | |
254 | ||
255 | Int_t matchingStatus=-1; | |
256 | if(trackLabel < 0) matchingStatus=0; | |
257 | new(aTOFTracks[i]) AliTOFTrackV2(trackLabel,matchingStatus,tpcmom,dEdXarray[i],tpcXYZ,tpcPtPz,trdXYZ,trdPxPyPz); | |
258 | // printf("rt with %d clusters and label %d \n", | |
259 | // iotrack->GetNumberOfClusters(), trackLabel); | |
260 | ||
261 | if(trackLabel < 0) continue; | |
262 | if(trackLabel >= maxIndex) continue; | |
263 | rtIndex[trackLabel] = i; | |
264 | delete iotrack; | |
265 | } | |
266 | ||
267 | if(strstr(option,"MC")) Comparison(rtIndex); | |
268 | ||
269 | // start loop on tracks | |
270 | // and backpropagate them from TPC to TOF | |
271 | // backpropagation is performed only | |
272 | // for good tracks (fake tracks rejected) | |
273 | AliTPCtrack *rt; | |
274 | ||
275 | for (Int_t i=0; i<nRecTracks; i++) { | |
276 | ||
277 | //******* tracking: extract track coordinates, momentum, etc. | |
278 | rt = (AliTPCtrack*) trackArray.UncheckedAt(i); | |
279 | // track length to be implemented | |
280 | // Double_t tr_length = rt->GetLength(); | |
281 | ||
282 | Int_t tpcTrackLabel=rt->GetLabel(); | |
283 | // reject fake tracks | |
284 | //if(tpcTrackLabel< 0) continue; | |
285 | ||
286 | // starting backpropagation to TOF | |
287 | // here we assume to have backpropagated tracks in TPC | |
288 | // starting point xk=246.055 | |
289 | // starting back propagation | |
290 | // outer wall of the TPC | |
291 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
292 | // frame with air just to the beginning of the TOF | |
293 | Int_t iFrameWithAir=rt->PropagateTo(370.,36.66,1.2931e-3); | |
294 | // trough the wall of the TOF plate | |
295 | // thickness has changed according to the | |
296 | // last value | |
297 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
298 | ||
299 | /* | |
300 | // outer wall of the TPC | |
301 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
302 | // air in between TPC and TRD | |
303 | Int_t iFrameWithAir=rt->PropagateTo(294.5,36.66,1.2931e-3); | |
304 | // TRD itself | |
305 | // mean density for the TRD calculated from | |
306 | // TRD Technical Design Report | |
307 | // page 11 -> global thickness | |
308 | // page 23 -> different main layers thickness (Radiator Air/ Drift Chamber Gas /G10) | |
309 | // page 139 -> material budget and radiation lengths | |
310 | Int_t iTRD=rt->PropagateTo(369.1,171.7,0.33); | |
311 | // air in between TRD and TOF | |
312 | Int_t iFrameWithAirbis=rt->PropagateTo(370.,36.66,1.2931e-3); | |
313 | // trough the wall of the TOF plate | |
314 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
315 | */ | |
316 | ||
317 | // select only cases when | |
318 | // backpropagation succeded | |
319 | // and particle is in the geometrical TOF acceptance along Z | |
320 | // |z|<380 [cm] | |
321 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(i); | |
322 | Bool_t outOfZacceptance=(rt->GetZ()<=380.); | |
323 | if(outOfZacceptance) oTOFtracks->SetMatchingStatus(-2); | |
324 | ||
325 | if(iOuterTPCWall==1 && iFrameWithAir==1 && iTOFWall==1 && (!outOfZacceptance)){ | |
326 | Double_t cc[15]; | |
327 | // get sigmaY and sigmaZ | |
328 | rt->GetExternalCovariance(cc); | |
329 | //Double_t sigmaY =TMath::Sqrt(cc[0]); // [cm] | |
330 | //Double_t sigmaZ =TMath::Sqrt(cc[2]); // [cm] | |
331 | ||
332 | // arrays used by the DigitFinder | |
333 | Int_t nSlot=1; | |
334 | TArrayI *secArray= new TArrayI(nSlot); | |
335 | TArrayI *plaArray= new TArrayI(nSlot); | |
336 | TArrayI *strArray= new TArrayI(nSlot); | |
337 | TArrayI *pdzArray= new TArrayI(nSlot); | |
338 | TArrayI *pdxArray= new TArrayI(nSlot); | |
339 | ||
340 | // make fNDummyTracks clones of the current backpropagated track | |
341 | // make a copy of the current track | |
342 | // smear according to the backpropagated area | |
343 | for (Int_t j=0; j<fNDummyTracks; i++) { | |
344 | AliTPCtrack *dummyrt=new AliTPCtrack(*rt); | |
345 | // get ylrf and zlrf | |
346 | //Double_t ylrf= dummyrt->GetY(); // P0 | |
347 | //Double_t zlrf= dummyrt->GetZ(); // P1 | |
348 | ||
349 | // smear according to sigmaY and sigmaZ | |
350 | //Double_t ylrfNew=gRandom->Gaus(ylrf,fScaleSigmaFactor*sigmaY); | |
351 | //Double_t zlrfNew=gRandom->Gaus(zlrf,fScaleSigmaFactor*sigmaZ); | |
352 | ||
353 | // set Y and Z accordingly | |
354 | // setter to be added in the class AliTPCtrack | |
355 | // here I have to modify the AliTPCtrack class | |
356 | // adding the setters for Y and Z | |
357 | //dummyrt->SetY(ylrfNew); | |
358 | //dummyrt->SetZ(zlrfNew); | |
359 | ||
360 | // start fine-backpropagation inside the TOF | |
361 | Bool_t padNotFound =kTRUE; | |
362 | Bool_t isInStripsRegion=kTRUE; | |
363 | Double_t xk=dummyrt->GetX(); | |
364 | ||
365 | while (padNotFound && isInStripsRegion){ | |
366 | xk+=fStep; | |
367 | // here we assume a frame with air | |
368 | dummyrt->PropagateTo(xk,36.66,1.2931e-3); | |
369 | // get the running coordinates in the lrf | |
370 | // and alpha | |
371 | Double_t x=xk; | |
372 | Double_t y=dummyrt->GetY(); | |
373 | Double_t z=dummyrt->GetZ(); | |
374 | Double_t alpha=dummyrt->GetAlpha(); | |
375 | GetGlobalXYZ(alpha, x, y, z); | |
376 | ||
377 | // check if the point falls into a pad | |
378 | // using the G3 geometry | |
379 | Int_t* volumeID = new Int_t[AliTOFConstants::fgkmaxtoftree]; | |
380 | // volumeID[0] -> TOF Sector range [1-18] | |
381 | // volumeID[1] -> TOF Plate range [1- 5] | |
382 | // volumeID[2] -> TOF Strip max range [1-20] | |
383 | // volumeID[3] -> TOF Pad along Z range [1- 2] | |
384 | // volumeID[4] -> TOF Pad along X range [1-48] | |
385 | ||
386 | Float_t zInPadFrame=0.; | |
387 | Float_t xInPadFrame=0.; | |
388 | IsInsideThePad((Float_t)x,(Float_t)y,(Float_t)z, volumeID, zInPadFrame, xInPadFrame); | |
389 | // adding protection versus wrong volume numbering | |
390 | // to be released in the next release after debugging | |
391 | if(volumeID[4]){ | |
392 | padNotFound=kFALSE; | |
393 | nSlot++; | |
394 | secArray->Set(nSlot-1); | |
395 | plaArray->Set(nSlot-1); | |
396 | strArray->Set(nSlot-1); | |
397 | pdzArray->Set(nSlot-1); | |
398 | pdxArray->Set(nSlot-1); | |
399 | ||
400 | (*secArray)[nSlot-1]=volumeID[0]; | |
401 | (*plaArray)[nSlot-1]=volumeID[1]; | |
402 | (*strArray)[nSlot-1]=volumeID[2]; | |
403 | (*pdzArray)[nSlot-1]=volumeID[3]; | |
404 | (*pdxArray)[nSlot-1]=volumeID[4]; | |
405 | ||
406 | } // track falls into a pad volume | |
407 | ||
408 | delete [] volumeID; | |
409 | ||
410 | // check on xk to stop the fine-propagation | |
411 | if(xk>=(370.+stripRegionHeight)) isInStripsRegion=kFALSE; | |
412 | ||
413 | } // close the while for fine-propagation | |
414 | ||
415 | delete dummyrt; | |
416 | } // end loop on test tracks | |
417 | ||
418 | // start TOF digit finder | |
419 | Int_t assignedVol[5]={0,0,0,0,0}; | |
420 | Float_t tdc=-1.; | |
421 | Int_t* digitTrackArray=0x0; | |
422 | Bool_t assignedDigit=DigitFinder(secArray, plaArray, strArray, pdzArray, pdxArray, assignedVol, digitTrackArray, tdc); | |
423 | ||
424 | ||
425 | if(assignedDigit){ | |
426 | // fill the tree for tracks with time of flight | |
427 | // tof is given in tdc bin | |
428 | // conversion to [ns] | |
429 | Float_t binWidth=50.; // [ps] | |
430 | Float_t timeOfFlight=tdc*binWidth/1000.; | |
431 | ||
432 | // only the first track number contributing | |
433 | // to the assigned digit | |
434 | Int_t tofDigitTrackLabel=digitTrackArray[0]; | |
435 | ||
436 | // matching status for the current track | |
437 | Int_t matching=4; | |
438 | if(tpcTrackLabel==digitTrackArray[0] || tpcTrackLabel==digitTrackArray[1] || tpcTrackLabel==digitTrackArray[0]) matching=3; | |
439 | oTOFtracks->UpdateTrack(tofDigitTrackLabel, matching, timeOfFlight); | |
440 | } else { | |
441 | // fill the TClonesArray for tracks with no time of flight | |
442 | Int_t matching=1; | |
443 | oTOFtracks->SetMatchingStatus(matching); | |
444 | } | |
445 | ||
446 | // delete used memory for tmp arrays used by DigitFinder | |
447 | delete secArray; | |
448 | delete plaArray; | |
449 | delete strArray; | |
450 | delete pdzArray; | |
451 | delete pdxArray; | |
452 | ||
453 | } // close the if for succeded backpropagation in TOF acceptance along z | |
454 | ||
455 | } // end loop on reconstructed tracks | |
456 | ||
457 | // free used memory for digitmap | |
458 | delete fDigitsMap; | |
459 | ||
460 | // save array with TOF tracks | |
461 | Int_t output=SaveTracks(); | |
462 | if(output) cout << "Error writing TOF tracks " << endl; | |
463 | } | |
464 | ||
465 | ||
466 | //__________________________________________________________________ | |
467 | void AliTOFReconstructionerV2::Init(Option_t* opt) | |
468 | { | |
469 | // | |
470 | // Initialize the AliTOFReconstructionerV2 | |
471 | // | |
472 | // | |
473 | } | |
474 | ||
475 | ||
476 | //__________________________________________________________________ | |
477 | Int_t AliTOFReconstructionerV2::LoadTPCTracks() | |
478 | { | |
479 | // | |
480 | // Connect the tree and the branch | |
481 | // with reconstructed tracks | |
482 | // backpropagated in the TPC | |
483 | ||
484 | gBenchmark->Start("LoadTPCTracks"); | |
485 | ||
486 | TFile *kalFile = TFile::Open(fTPCBackTracksFile.Data()); | |
487 | if (!kalFile->IsOpen()) {cerr<<"Can't open AliTPCBackTracks.root !\n"; return 3;} | |
488 | ||
489 | // tracks from Kalman | |
490 | Int_t event=0; | |
491 | char treename[100]; sprintf(treename,"TreeT_TPCb_%d",event); | |
492 | fKalmanTree=(TTree*)kalFile->Get(treename); | |
493 | if (!fKalmanTree) {cerr<<"Can't get a tree with TPC back tracks !\n"; return 4;} | |
494 | ||
495 | // otherwise you get always 0 for 1/pt | |
496 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
497 | ||
498 | fBranchWithTracks=fKalmanTree->GetBranch("tracks"); | |
499 | Int_t kalEntries =(Int_t)fKalmanTree->GetEntries(); | |
500 | cout<<"Number of loaded Tracks :"<< kalEntries <<endl; | |
501 | ||
502 | gBenchmark->Stop("LoadTPCTracks"); | |
503 | gBenchmark->Show("LoadTPCTracks"); | |
504 | return 0; | |
505 | } | |
506 | ||
507 | //__________________________________________________________________ | |
508 | Int_t AliTOFReconstructionerV2::LoadTRDTracks() | |
509 | { | |
510 | // | |
511 | // Connect the tree and the branch | |
512 | // with reconstructed tracks in TRD | |
513 | ||
514 | gBenchmark->Start("LoadTRDTracks"); | |
515 | ||
516 | Int_t nEvent = 0; | |
517 | const Int_t nPrimaries = 84210/16; | |
518 | const Int_t maxIndex = nPrimaries; | |
519 | Int_t rtIndex[maxIndex]; | |
520 | ||
521 | TFile *tf=TFile::Open("AliTRDtracks.root"); | |
522 | ||
523 | if (!tf->IsOpen()) {cerr<<"Can't open AliTRDtracks.root !\n"; return 3;} | |
524 | TObjArray tarray(2000); | |
525 | char tname[100]; | |
526 | sprintf(tname,"TRDb_%d",nEvent); | |
527 | TTree *tracktree=(TTree*)tf->Get(tname); | |
528 | ||
529 | TBranch *tbranch=tracktree->GetBranch("tracks"); | |
530 | ||
531 | Int_t nRecTracks = (Int_t) tracktree->GetEntries(); | |
532 | cerr<<"Found "<<nRecTracks<<" entries in the track tree"<<endl; | |
533 | ||
534 | for (Int_t i=0; i<nRecTracks; i++) { | |
535 | AliTRDtrack *iotrack=new AliTRDtrack(); | |
536 | tbranch->SetAddress(&iotrack); | |
537 | tracktree->GetEvent(i); | |
538 | tarray.AddLast(iotrack); | |
539 | Int_t trackLabel = iotrack->GetLabel(); | |
540 | ||
541 | // printf("rt with %d clusters and label %d \n", | |
542 | // iotrack->GetNumberOfClusters(), trackLabel); | |
543 | ||
544 | if(trackLabel < 0) continue; | |
545 | if(trackLabel >= maxIndex) continue; | |
546 | rtIndex[trackLabel] = i; | |
547 | } | |
548 | tf->Close(); | |
549 | gBenchmark->Stop("LoadTRDTracks"); | |
550 | gBenchmark->Show("LoadTRDTracks"); | |
551 | return 0; | |
552 | ||
553 | } | |
554 | ||
555 | //__________________________________________________________________ | |
556 | Int_t AliTOFReconstructionerV2::LoadTOFDigits() | |
557 | { | |
558 | // | |
559 | // Connect the TClonesArray with TOF | |
560 | // digits and fill the digit map | |
561 | // used by the DigitFinder | |
562 | ||
563 | Int_t rc=0; | |
564 | ||
565 | gBenchmark->Start("LoadTOFDigits"); | |
566 | ||
567 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(fTOFDigitsFile.Data()); | |
568 | if(file){ | |
569 | cout<<"headerFile already open \n"; | |
570 | } | |
571 | else { | |
572 | if(!file)file=TFile::Open(fTOFDigitsFile.Data()); | |
573 | } | |
574 | ||
575 | // Get AliRun object from file | |
576 | if (!gAlice) { | |
577 | gAlice = (AliRun*)file->Get("gAlice"); | |
578 | if (gAlice) printf("AliRun object found on file\n"); | |
579 | } | |
580 | ||
581 | Int_t iEvNum = 0; | |
582 | if (iEvNum == 0) iEvNum = (Int_t) gAlice->TreeE()->GetEntries(); | |
583 | ||
584 | ||
585 | AliTOFdigit *tofdigit; | |
586 | ||
587 | AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ; | |
588 | ||
589 | if (!tof) { | |
590 | cout << "<LoadTOFDigits> No TOF detector found" << endl; | |
591 | rc = 2; | |
592 | return rc; | |
593 | } | |
594 | ||
595 | for (Int_t ievent = 0; ievent < iEvNum; ievent++) { | |
596 | ||
597 | gAlice->GetEvent(ievent) ; | |
598 | if(gAlice->TreeD()==0) { | |
599 | cout << "<LoadTOFDigits> No TreeD found" << endl; | |
600 | rc = 4; | |
601 | return rc; | |
602 | } | |
603 | ||
604 | ||
605 | Int_t ndig; | |
606 | gAlice->ResetDigits(); | |
607 | gAlice->TreeD()->GetEvent(ievent); | |
608 | fTOFDigits = tof->Digits(); | |
609 | ||
610 | ndig=fTOFDigits->GetEntries(); | |
611 | ||
612 | // create the digit map | |
613 | fDigitsMap = new AliTOFDigitMap(fTOFDigits); | |
614 | ||
615 | ||
616 | cout << "<LoadTOFDigits> found " << ndig | |
617 | << " TOF digits for event " << ievent << endl; | |
618 | ||
619 | for (Int_t k=0; k<ndig; k++) { | |
620 | tofdigit= (AliTOFdigit*) fTOFDigits->UncheckedAt(k); | |
621 | Float_t tdc=tofdigit->GetTdc(); | |
622 | // adc value can be used for weighting | |
623 | //Float_t adc=tofdigit->GetAdc(); | |
624 | ||
625 | // TOF digit volumes | |
626 | Int_t vol[5]; // location for a digit | |
627 | Int_t sector = tofdigit->GetSector(); // range [1-18] | |
628 | Int_t plate = tofdigit->GetPlate(); // range [1- 5] | |
629 | Int_t strip = tofdigit->GetStrip(); // range [1-20] | |
630 | Int_t padx = tofdigit->GetPadx(); // range [1-48] | |
631 | Int_t padz = tofdigit->GetPadz(); // range [1- 2] | |
632 | ||
633 | vol[0] = sector; | |
634 | vol[1] = plate; | |
635 | vol[2] = strip; | |
636 | vol[3] = padx; | |
637 | vol[4] = padz; | |
638 | ||
639 | // QA | |
640 | Bool_t isDigitBad = (sector<1 || sector>18 || plate<1 || plate >5 || padz<1 || padz>2 || padx<1 || padx>48); | |
641 | ||
642 | if (isDigitBad) { | |
643 | cout << "<LoadTOFDigits> strange digit found" << endl; | |
644 | rc = 3; | |
645 | return rc; | |
646 | } // if (isDigitBad) | |
647 | ||
648 | // Fill the digit map checking if the location is already used | |
649 | // in this case we take the earliest signal | |
650 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
651 | // start comparison in between the 2 digit | |
652 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
653 | if(tdc < (dig->GetTdc())) fDigitsMap->SetHit(vol,k); | |
654 | // we can add also the check on adc value | |
655 | // by selecting the largest adc value | |
656 | } else { | |
657 | fDigitsMap->SetHit(vol,k); | |
658 | } | |
659 | // to be added protection versus 2-digit on the same pad | |
660 | // we have to have memory also of the second digit | |
661 | ||
662 | } // for (k=0; k<ndig; k++) | |
663 | ||
664 | } // end loop on events | |
665 | ||
666 | gBenchmark->Stop("LoadTOFDigits"); | |
667 | gBenchmark->Show("LoadTOFDigits"); | |
668 | return rc; | |
669 | } | |
670 | ||
671 | //__________________________________________________________________ | |
672 | void AliTOFReconstructionerV2::IsInsideThePad(Float_t x, Float_t y, Float_t z, Int_t *nGeom, Float_t& zPad, Float_t& xPad) | |
673 | { | |
674 | // input: x,y,z - coordinates of a point in the mrf [cm] | |
675 | // output: array nGeom[] | |
676 | // nGeom[0] - the TOF sector number, 1,2,...,18 along azimuthal direction starting from -90 deg. | |
677 | // nGeom[1] - the TOF module number, 1,2,3,4,5=C,B,A,B,C along z-direction | |
678 | // nGeom[2] - the TOF strip number, 1,2,... along z-direction | |
679 | // nGeom[3] - the TOF padz number, 1,2=NPZ across a strip | |
680 | // nGeom[4] - the TOF padx number, 1,2,...,48=NPX along a strip | |
681 | // zPad, xPad - coordinates of the hit in the pad frame | |
682 | // numbering is adopted for the version 3.08 of AliRoot | |
683 | // example: | |
684 | // from Hits: sec,pla,str,padz,padx=4,2,14,2,35 | |
685 | // Vol. n.0: ALIC, copy number 1 | |
686 | // Vol. n.1: B077, copy number 1 | |
687 | // Vol. n.2: B074, copy number 5 | |
688 | // Vol. n.3: BTO2, copy number 1 | |
689 | // Vol. n.4: FTOB, copy number 2 | |
690 | // Vol. n.5: FLTB, copy number 0 | |
691 | // Vol. n.6: FSTR, copy number 14 | |
692 | // Vol. n.7: FSEN, copy number 0 | |
693 | // Vol. n.8: FSEZ, copy number 2 | |
694 | // Vol. n.9: FSEX, copy number 35 | |
695 | // Vol. n.10: FPAD, copy number 0 | |
696 | ||
697 | ||
698 | Float_t xTOF[3]; | |
699 | Int_t sector=0,module=0,strip=0,padz=0,padx=0; | |
700 | Int_t i,numed,nLevel,copyNumber; | |
701 | Gcvolu_t* gcvolu; | |
702 | char name[5]; | |
703 | name[4]=0; | |
704 | ||
705 | for (i=0; i<AliTOFConstants::fgkmaxtoftree; i++) nGeom[i]=0; | |
706 | zPad=100.; | |
707 | xPad=100.; | |
708 | ||
709 | xTOF[0]=x; | |
710 | xTOF[1]=y; | |
711 | xTOF[2]=z; | |
712 | ||
713 | TGeant3 * fG3Geom = (TGeant3*) gMC; | |
714 | ||
715 | fG3Geom->Gmedia(xTOF, numed); | |
716 | gcvolu=fG3Geom->Gcvolu(); | |
717 | nLevel=gcvolu->nlevel; | |
718 | if(fdbg) { | |
719 | for (Int_t i=0; i<nLevel; i++) { | |
720 | strncpy(name,(char*) (&gcvolu->names[i]),4); | |
721 | cout<<"Vol. n."<<i<<": "<<name<<", copy number "<<gcvolu->number[i]<<endl; | |
722 | } | |
723 | } | |
724 | if(nLevel>=2) { | |
725 | // sector type name: B071(1,2,...,10),B074(1,2,3,4,5-PHOS),B075(1,2,3-RICH) | |
726 | strncpy(name,(char*) (&gcvolu->names[2]),4); | |
727 | // volume copy: 1,2,...,10 for B071, 1,2,3,4,5 for B074, 1,2,3 for B075 | |
728 | copyNumber=gcvolu->number[2]; | |
729 | if(!strcmp(name,"B071")) { | |
730 | if (copyNumber>=6 && copyNumber<=8) { | |
731 | sector=copyNumber+10; | |
732 | } else if (copyNumber>=1 && copyNumber<=5){ | |
733 | sector=copyNumber+7; | |
734 | } else { | |
735 | sector=copyNumber-8; | |
736 | } | |
737 | } else if(!strcmp(name,"B075")) { | |
738 | sector=copyNumber+12; | |
739 | } else if(!strcmp(name,"B074")) { | |
740 | if (copyNumber>=1 && copyNumber<=3){ | |
741 | sector=copyNumber+4; | |
742 | } else { | |
743 | sector=copyNumber-1; | |
744 | } | |
745 | } | |
746 | } | |
747 | if(sector) { | |
748 | nGeom[0]=sector; | |
749 | if(nLevel>=4) { | |
750 | // we'll use the module value in z-direction: | |
751 | // 1 2 3 4 5 | |
752 | // the module order in z-direction: FTOC,FTOB,FTOA,FTOB,FTOC | |
753 | // the module copy: 2 2 0 1 1 | |
754 | // module type name: FTOA, FTOB, FTOC | |
755 | strncpy(name,(char*) (&gcvolu->names[4]),4); | |
756 | // module copy: | |
757 | copyNumber=gcvolu->number[4]; | |
758 | if(!strcmp(name,"FTOC")) { | |
759 | if (copyNumber==2) { | |
760 | module=1; | |
761 | } else { | |
762 | module=5; | |
763 | } | |
764 | } else if(!strcmp(name,"FTOB")) { | |
765 | if (copyNumber==2) { | |
766 | module=2; | |
767 | } else { | |
768 | module=4; | |
769 | } | |
770 | } else if(!strcmp(name,"FTOA")) { | |
771 | module=3; | |
772 | } | |
773 | } | |
774 | } | |
775 | ||
776 | if(module) { | |
777 | nGeom[1]=module; | |
778 | if(nLevel>=6) { | |
779 | // strip type name: FSTR | |
780 | strncpy(name,(char*) (&gcvolu->names[6]),4); | |
781 | // strip copy: | |
782 | copyNumber=gcvolu->number[6]; | |
783 | if(!strcmp(name,"FSTR")) strip=copyNumber; | |
784 | } | |
785 | } | |
786 | ||
787 | if(strip) { | |
788 | nGeom[2]=strip; | |
789 | if(nLevel>=8) { | |
790 | // padz type name: FSEZ | |
791 | strncpy(name,(char*) (&gcvolu->names[8]),4); | |
792 | // padz copy: | |
793 | copyNumber=gcvolu->number[8]; | |
794 | if(!strcmp(name,"FSEZ")) padz=copyNumber; | |
795 | } | |
796 | } | |
797 | if(padz) { | |
798 | nGeom[3]=padz; | |
799 | if(nLevel>=9) { | |
800 | // padx type name: FSEX | |
801 | strncpy(name,(char*) (&gcvolu->names[9]),4); | |
802 | // padx copy: | |
803 | copyNumber=gcvolu->number[9]; | |
804 | if(!strcmp(name,"FSEX")) padx=copyNumber; | |
805 | } | |
806 | } | |
807 | ||
808 | if(padx) { | |
809 | nGeom[4]=padx; | |
810 | zPad=gcvolu->glx[2]; | |
811 | xPad=gcvolu->glx[0]; | |
812 | } | |
813 | ||
814 | } | |
815 | ||
816 | //__________________________________________________________________ | |
817 | void AliTOFReconstructionerV2::GetGlobalXYZ(Double_t alpha, Double_t& x, Double_t& y, Double_t& z) | |
818 | { | |
819 | // | |
820 | // return the current running coordinates of | |
821 | // the track in the global reference frame | |
822 | // x, y and z have to initialized to the | |
823 | // local frame coordinates by the caller | |
824 | // alpha is the alpha coordinate in the TPC Kalman | |
825 | // reference frame | |
826 | ||
827 | // it take into account differences in between | |
828 | // TPC and TRD local coordinates frames | |
829 | if (alpha < -TMath::Pi()) alpha += 2*TMath::Pi(); | |
830 | else if (alpha >= TMath::Pi()) alpha -= 2*TMath::Pi(); | |
831 | ||
832 | // conversion | |
833 | Double_t tmp=x*TMath::Cos(alpha) - y*TMath::Sin(alpha); | |
834 | y=x*TMath::Sin(alpha) + y*TMath::Cos(alpha); | |
835 | x=tmp; | |
836 | } | |
837 | ||
838 | //__________________________________________________________________ | |
839 | Bool_t AliTOFReconstructionerV2::DigitFinder(TArrayI *secArray, TArrayI *plaArray, TArrayI *strArray, TArrayI *pdzArray, TArrayI *pdxArray, Int_t* assignedVol, Int_t* digitTrackArray, Float_t& tdc) | |
840 | { | |
841 | // | |
842 | // Description | |
843 | // input: arrays with sectors, plates, strips, padz, padx | |
844 | // found during fine-propagation of probe tracks | |
845 | // | |
846 | // output kFALSE if signal is not found | |
847 | // kTRUE if signal is found | |
848 | // in this case the assignedVol array contains the digit volume numbers | |
849 | // and digitTrackArray the track numbers (max 3) contributing to the | |
850 | // digit | |
851 | ||
852 | Bool_t dummy=kFALSE; | |
853 | Int_t nFilledSlot=secArray->GetSize(); | |
854 | ||
855 | // start loop | |
856 | Float_t maxWeight=-1.; | |
857 | Int_t indexOfMaxWeight=-1; | |
858 | for (Int_t i = 0; i < nFilledSlot; i++) { | |
859 | Int_t vol[5]; // location for a digit | |
860 | vol[0] = (*secArray)[i]; | |
861 | vol[1] = (*plaArray)[i]; | |
862 | vol[2] = (*strArray)[i]; | |
863 | vol[3] = (*pdxArray)[i]; | |
864 | vol[4] = (*pdzArray)[i]; | |
865 | ||
866 | // check for digit in the current location | |
867 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
868 | ||
869 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
870 | Float_t adcWeight=dig->GetAdc(); | |
871 | if(adcWeight > maxWeight){ | |
872 | maxWeight=adcWeight; | |
873 | indexOfMaxWeight=i; | |
874 | tdc=dig->GetTdc(); | |
875 | digitTrackArray=dig->GetTracks(); | |
876 | ||
877 | } // if(adcWeight > maxWeight) | |
878 | } // close if (fDigitsMap->TestHit(vol) != kEmpty) | |
879 | ||
880 | } // end loop | |
881 | ||
882 | if(indexOfMaxWeight!=-1){ | |
883 | assignedVol[0]=(*secArray)[indexOfMaxWeight]; | |
884 | assignedVol[1]=(*plaArray)[indexOfMaxWeight]; | |
885 | assignedVol[2]=(*strArray)[indexOfMaxWeight]; | |
886 | assignedVol[3]=(*pdxArray)[indexOfMaxWeight]; | |
887 | assignedVol[4]=(*pdzArray)[indexOfMaxWeight]; | |
888 | dummy=kTRUE; | |
889 | } | |
890 | ||
891 | return dummy; | |
892 | } | |
893 | ||
894 | //__________________________________________________________________ | |
895 | Int_t AliTOFReconstructionerV2::SaveTracks(const Char_t *outname, const Int_t split) | |
896 | { | |
897 | // | |
898 | // save reconstructed tracks into | |
899 | // outname file | |
900 | // | |
901 | TDirectory *savedir=gDirectory; | |
902 | const Char_t *name="Writing Output"; | |
903 | cerr<<'\n'<<name<<"...\n"; | |
904 | gBenchmark->Start(name); | |
905 | ||
906 | TFile *out=TFile::Open(outname,"RECREATE"); | |
907 | if (!out->IsOpen()) { | |
908 | cerr<<"AliTOFReconstructionerV2::SaveTracks(): "; | |
909 | cerr<<"file for TOF tracks is not open !\n"; | |
910 | return 2; | |
911 | } | |
912 | ||
913 | out->cd(); | |
914 | TTree T("T","tree with TOF tracks"); | |
915 | T.Branch("tracks",&fTOFTracks,256000,split); | |
916 | ||
917 | ||
918 | T.Fill(); | |
919 | T.Write(); | |
920 | savedir->cd(); | |
921 | out->Close(); | |
922 | return 0; | |
923 | gBenchmark->Stop(name); | |
924 | gBenchmark->Show(name); | |
925 | } | |
926 | ||
927 | //__________________________________________________________________ | |
928 | void AliTOFReconstructionerV2::Comparison(Int_t* rtIndex) | |
929 | { | |
930 | // | |
931 | // perform MC comparison | |
932 | // used also for track length | |
933 | // for the time being | |
934 | // Connect the AliRoot file containing Geometry, Kine, Hits, and Digits | |
935 | ||
936 | ||
937 | Int_t nEvent = 0; | |
938 | Char_t *alifile = "galice.root"; | |
939 | ||
940 | TFile *gafl = (TFile*) gROOT->GetListOfFiles()->FindObject(alifile); | |
941 | if (!gafl) { | |
942 | cout << "Open the ALIROOT-file " << alifile << endl; | |
943 | gafl = new TFile(alifile); | |
944 | } | |
945 | else { | |
946 | cout << alifile << " is already open" << endl; | |
947 | } | |
948 | ||
949 | // Get AliRun object from file or create it if not on file | |
950 | gAlice = (AliRun*) gafl->Get("gAlice"); | |
951 | if (gAlice) | |
952 | cout << "AliRun object found on file" << endl; | |
953 | else | |
954 | gAlice = new AliRun("gAlice","Alice test program"); | |
955 | ||
956 | ||
957 | // Import the Trees for the event nEvent in the file | |
958 | const Int_t nparticles = gAlice->GetEvent(nEvent); | |
959 | if (nparticles <= 0) return; | |
960 | ||
961 | // Get pointers to Alice detectors and Hits containers | |
962 | AliDetector *TOF = gAlice->GetDetector("TOF"); | |
963 | Int_t ntracks = (Int_t) gAlice->TreeH()->GetEntries(); | |
964 | ||
965 | // Start loop on tracks in the hits containers | |
966 | for (Int_t track=0; track < ntracks; track++) { | |
967 | ||
968 | if(TOF) { | |
969 | for(AliTOFhitT0* tofHit = (AliTOFhitT0*)TOF->FirstHit(track); | |
970 | tofHit; | |
971 | tofHit=(AliTOFhitT0*)TOF->NextHit()) { | |
972 | ||
973 | Int_t ipart = tofHit->GetTrack(); | |
974 | if(ipart >= 80000) continue; | |
975 | if(rtIndex[ipart] < 0) continue; | |
976 | ||
977 | TParticle *part = gAlice->Particle(ipart); | |
978 | ||
979 | // get first the pdg code | |
980 | Int_t pdgCode=part->GetPdgCode(); | |
981 | ||
982 | // then track length | |
983 | Float_t trackLength=tofHit->GetLen(); // [cm] | |
984 | ||
985 | // update the tof TClonesArray with TOF tracks | |
986 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(rtIndex[ipart]); | |
987 | oTOFtracks->UpdateTrack(pdgCode,trackLength); | |
988 | ||
989 | } // loop on hits connected to the current track | |
990 | } // if(TOF) | |
991 | } // end loop on primary tracks | |
992 | } | |
993 | ||
994 | //__________________________________________________________________ | |
995 | Bool_t AliTOFReconstructionerV2::operator==(const AliTOFReconstructionerV2 & tofrecv2)const | |
996 | { | |
997 | // Equal operator. | |
998 | // Reconstructioner are equal if their fField, fNDummyTracks, fScaleSigmaFactor and fStep are equal | |
999 | ||
1000 | if( (fField==tofrecv2.fField)&&(fNDummyTracks==tofrecv2.fNDummyTracks)&&(fScaleSigmaFactor==tofrecv2.fScaleSigmaFactor)&&(fStep==tofrecv2.fStep)) | |
1001 | return kTRUE ; | |
1002 | else | |
1003 | return kFALSE ; | |
1004 | } |