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bf6bf84c | 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 <iostream.h> | |
33 | #include <fstream.h> | |
34 | #include "../TGeant3/TGeant3.h" | |
35 | ||
36 | #include "AliDetector.h" | |
37 | #include "AliMC.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 "../STEER/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 | fG3Geom =0x0; | |
65 | fNDummyTracks=0; | |
66 | fScaleSigmaFactor=0.; | |
67 | fStep =0; | |
68 | fTOFDigits=0x0; | |
69 | fTOFTracks=0x0; | |
70 | fTOFDigitsFile ="digits.root"; | |
71 | fTPCBackTracksFile="AliTPCBackTracks.root"; | |
72 | fKalmanTree =0x0; | |
73 | fBranchWithTracks =0x0; | |
74 | } | |
75 | ||
76 | //____________________________________________________________________________ | |
77 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(char* tpcBackTracks, char* tofDigits):TTask("AliTOFReconstructionerV2","") | |
78 | { | |
79 | // | |
80 | // par ctor | |
81 | // default arguments are specified only in | |
82 | // the header file | |
83 | // Parameters: | |
84 | // tpcBackTracks -> file name with backpropagated tracks in TPC | |
85 | // tofDigits -> file name with TOF digits | |
86 | // | |
87 | ||
88 | fdbg =0; | |
89 | fDigitsMap=0x0; | |
90 | fField =0.2; // default value 0.2 [Tesla] | |
91 | fNDummyTracks=20; // by default 20 test tracks used | |
92 | fScaleSigmaFactor=1.; | |
93 | fStep =0.01; // [cm] | |
94 | fTOFDigits=0x0; | |
95 | fTOFTracks=0x0; | |
96 | fTOFDigitsFile =tofDigits; | |
97 | fTPCBackTracksFile=tpcBackTracks; | |
98 | fKalmanTree =0x0; | |
99 | fBranchWithTracks =0x0; | |
100 | ||
101 | // initialize the G3 geometry | |
102 | gAlice->Init(); | |
103 | gAlice->Print(); | |
104 | // set the fg3 pointer to geometry used by IsInsideThePad method | |
105 | fG3Geom = (TGeant3*) gMC; | |
106 | ||
107 | // add Task to //root/Tasks folder | |
108 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
109 | roottasks->Add(this) ; | |
110 | } | |
111 | ||
112 | //____________________________________________________________________________ | |
113 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(const AliTOFReconstructionerV2 & rec) | |
114 | { | |
115 | // | |
116 | // Dummy copy constructor | |
117 | // required by coding conventions | |
118 | ; | |
119 | } | |
120 | ||
121 | ||
122 | ||
123 | //____________________________________________________________________________ | |
124 | AliTOFReconstructionerV2::~AliTOFReconstructionerV2() | |
125 | { | |
126 | // | |
127 | // dtor | |
128 | // some delete has to be moved | |
129 | // | |
130 | ||
131 | if (fDigitsMap) | |
132 | { | |
133 | delete fDigitsMap; | |
134 | fDigitsMap = 0; | |
135 | } | |
136 | ||
137 | if (fG3Geom) | |
138 | { | |
139 | delete fG3Geom; | |
140 | fG3Geom = 0; | |
141 | } | |
142 | ||
143 | if (fTOFDigits) | |
144 | { | |
145 | delete fTOFDigits; | |
146 | fTOFDigits = 0; | |
147 | } | |
148 | ||
149 | if (fTOFTracks) | |
150 | { | |
151 | delete fTOFTracks; | |
152 | fTOFTracks = 0; | |
153 | } | |
154 | ||
155 | if (fTOFDigitsFile) | |
156 | { | |
157 | delete fTOFDigitsFile; | |
158 | } | |
159 | ||
160 | if (fTPCBackTracksFile) | |
161 | { | |
162 | delete fTPCBackTracksFile; | |
163 | } | |
164 | ||
165 | if (fKalmanTree) | |
166 | { | |
167 | delete fKalmanTree; | |
168 | fKalmanTree = 0; | |
169 | } | |
170 | ||
171 | if (fBranchWithTracks) | |
172 | { | |
173 | delete fBranchWithTracks; | |
174 | fBranchWithTracks = 0; | |
175 | } | |
176 | } | |
177 | ||
178 | ||
179 | //____________________________________________________________________________ | |
180 | void AliTOFReconstructionerV2::Exec(Option_t* option) | |
181 | { | |
182 | // | |
183 | // Description of the algorithm: | |
184 | // | |
185 | // | |
186 | // | |
187 | // | |
188 | // | |
189 | // | |
190 | ||
191 | // load TOF digits and fill the digit map | |
192 | Int_t tofDigitsLoading=LoadTOFDigits(); | |
193 | ||
194 | // load back-propagated tracks in TPC | |
195 | Int_t tpcTracksLoading=LoadTPCTracks(); | |
196 | ||
197 | if(tofDigitsLoading || tpcTracksLoading) { | |
198 | cout<<" Couldn't start reconstruction V2. Exit."<<endl; | |
199 | exit(1); | |
200 | } | |
201 | // or load TRD reconstructed tracks | |
202 | // Int_t trdTracksLoading=LoadTRDTracks(); | |
203 | ||
204 | // create a TObjArray to store reconstructed tracks | |
205 | // and reject fake tracks | |
206 | const Int_t maxRecTracks = 10000; // max number of reconstructed tracks | |
207 | // per event | |
208 | ||
209 | const Float_t stripRegionHeight = 15.3; // [cm] height in radial direction | |
210 | // of the volume where strips are placed | |
211 | TObjArray trackArray(maxRecTracks); | |
212 | ||
213 | // buffer for output | |
214 | fTOFTracks= new TClonesArray("AliTOFTrackV2"); | |
215 | // create a reference to fill the TClonesArray | |
216 | TClonesArray &aTOFTracks = *fTOFTracks; | |
217 | ||
218 | const Int_t maxIndex = 100000; // max number of primary tracks to be analysed | |
219 | // the index of the rtIndex array is the track label | |
220 | // the content of the array is -1 for fake tracks | |
221 | // and the track index for good tracks | |
222 | Float_t dEdXarray[maxRecTracks]; | |
223 | Int_t rtIndex[maxIndex]; | |
224 | for(Int_t i = 0; i < maxIndex; i++) rtIndex[i] = -1; | |
225 | ||
226 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
227 | ||
228 | Int_t nRecTracks = (Int_t) fKalmanTree->GetEntries(); | |
229 | cout<<"Found "<<nRecTracks<<" entries in the track tree "<<endl; | |
230 | ||
231 | // load the tracks into the array | |
232 | for (Int_t i=0; i<nRecTracks; i++) { | |
233 | AliTPCtrack *iotrack=new AliTPCtrack(); | |
234 | fBranchWithTracks->SetAddress(&iotrack); | |
235 | fKalmanTree->GetEvent(i); | |
236 | trackArray.AddLast(iotrack); | |
237 | Int_t trackLabel = iotrack->GetLabel(); | |
238 | dEdXarray[i]=iotrack->GetdEdx(); // usefull for PID | |
239 | // | |
240 | // start filling the TClonesArray of AliTOFTrackV2 | |
241 | Float_t trdXYZ[3]={0.,0.,0.}; | |
242 | Float_t trdPxPyPz[3]={0.,0.,0.}; | |
243 | ||
244 | // tpc outer wall positions | |
245 | Double_t xk=iotrack->GetX(); | |
246 | // get the running coordinates in the lrf | |
247 | // and alpha | |
248 | Double_t x=xk; | |
249 | Double_t y=iotrack->GetY(); | |
250 | Double_t z=iotrack->GetZ(); | |
251 | Double_t alpha=iotrack->GetAlpha(); | |
252 | GetGlobalXYZ(alpha, x, y, z); | |
253 | Float_t tpcXYZ[3]={x,y,z}; | |
254 | ||
255 | // momentum at the end of TPC | |
256 | Float_t lambda=TMath::ATan(iotrack->GetTgl()); | |
257 | Float_t invpt=TMath::Abs(iotrack->Get1Pt()); | |
258 | Float_t pt=-99.; | |
259 | if (invpt) pt= 1./invpt; // pt | |
260 | Float_t tpcmom=1./(invpt*TMath::Cos(lambda)); | |
261 | Float_t pz=tpcmom*TMath::Sin(lambda); | |
262 | Float_t tpcPtPz[2]={pt,pz}; | |
263 | ||
264 | Int_t matchingStatus=-1; | |
265 | if(trackLabel < 0) matchingStatus=0; | |
266 | new(aTOFTracks[i]) AliTOFTrackV2(trackLabel,matchingStatus,tpcmom,dEdXarray[i],tpcXYZ,tpcPtPz,trdXYZ,trdPxPyPz); | |
267 | // printf("rt with %d clusters and label %d \n", | |
268 | // iotrack->GetNumberOfClusters(), trackLabel); | |
269 | ||
270 | if(trackLabel < 0) continue; | |
271 | if(trackLabel >= maxIndex) continue; | |
272 | rtIndex[trackLabel] = i; | |
273 | delete iotrack; | |
274 | } | |
275 | ||
276 | if(strstr(option,"MC")) Comparison(rtIndex); | |
277 | ||
278 | // start loop on tracks | |
279 | // and backpropagate them from TPC to TOF | |
280 | // backpropagation is performed only | |
281 | // for good tracks (fake tracks rejected) | |
282 | AliTPCtrack *rt; | |
283 | ||
284 | for (Int_t i=0; i<nRecTracks; i++) { | |
285 | ||
286 | //******* tracking: extract track coordinates, momentum, etc. | |
287 | rt = (AliTPCtrack*) trackArray.UncheckedAt(i); | |
288 | // track length to be implemented | |
289 | // Double_t tr_length = rt->GetLength(); | |
290 | ||
291 | Int_t tpcTrackLabel=rt->GetLabel(); | |
292 | // reject fake tracks | |
293 | //if(tpcTrackLabel< 0) continue; | |
294 | ||
295 | // starting backpropagation to TOF | |
296 | // here we assume to have backpropagated tracks in TPC | |
297 | // starting point xk=246.055 | |
298 | // starting back propagation | |
299 | // outer wall of the TPC | |
300 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
301 | // frame with air just to the beginning of the TOF | |
302 | Int_t iFrameWithAir=rt->PropagateTo(370.,36.66,1.2931e-3); | |
303 | // trough the wall of the TOF plate | |
304 | // thickness has changed according to the | |
305 | // last value | |
306 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
307 | ||
308 | /* | |
309 | // outer wall of the TPC | |
310 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
311 | // air in between TPC and TRD | |
312 | Int_t iFrameWithAir=rt->PropagateTo(294.5,36.66,1.2931e-3); | |
313 | // TRD itself | |
314 | // mean density for the TRD calculated from | |
315 | // TRD Technical Design Report | |
316 | // page 11 -> global thickness | |
317 | // page 23 -> different main layers thickness (Radiator Air/ Drift Chamber Gas /G10) | |
318 | // page 139 -> material budget and radiation lengths | |
319 | Int_t iTRD=rt->PropagateTo(369.1,171.7,0.33); | |
320 | // air in between TRD and TOF | |
321 | Int_t iFrameWithAirbis=rt->PropagateTo(370.,36.66,1.2931e-3); | |
322 | // trough the wall of the TOF plate | |
323 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
324 | */ | |
325 | ||
326 | // select only cases when | |
327 | // backpropagation succeded | |
328 | // and particle is in the geometrical TOF acceptance along Z | |
329 | // |z|<380 [cm] | |
330 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(i); | |
331 | Bool_t outOfZacceptance=(rt->GetZ()<=380.); | |
332 | if(outOfZacceptance) oTOFtracks->SetMatchingStatus(-2); | |
333 | ||
334 | if(iOuterTPCWall==1 && iFrameWithAir==1 && iTOFWall==1 && (!outOfZacceptance)){ | |
335 | Double_t cc[15]; | |
336 | // get sigmaY and sigmaZ | |
337 | rt->GetExternalCovariance(cc); | |
338 | Double_t sigmaY =TMath::Sqrt(cc[0]); // [cm] | |
339 | Double_t sigmaZ =TMath::Sqrt(cc[2]); // [cm] | |
340 | ||
341 | // arrays used by the DigitFinder | |
342 | Int_t nSlot=1; | |
343 | TArrayI *secArray= new TArrayI(nSlot); | |
344 | TArrayI *plaArray= new TArrayI(nSlot); | |
345 | TArrayI *strArray= new TArrayI(nSlot); | |
346 | TArrayI *pdzArray= new TArrayI(nSlot); | |
347 | TArrayI *pdxArray= new TArrayI(nSlot); | |
348 | ||
349 | // make fNDummyTracks clones of the current backpropagated track | |
350 | // make a copy of the current track | |
351 | // smear according to the backpropagated area | |
352 | for (Int_t j=0; j<fNDummyTracks; i++) { | |
353 | AliTPCtrack *dummyrt=new AliTPCtrack(*rt); | |
354 | // get ylrf and zlrf | |
355 | Double_t ylrf= dummyrt->GetY(); // P0 | |
356 | Double_t zlrf= dummyrt->GetZ(); // P1 | |
357 | ||
358 | // smear according to sigmaY and sigmaZ | |
359 | Double_t ylrfNew=gRandom->Gaus(ylrf,fScaleSigmaFactor*sigmaY); | |
360 | Double_t zlrfNew=gRandom->Gaus(zlrf,fScaleSigmaFactor*sigmaZ); | |
361 | ||
362 | // set Y and Z accordingly | |
363 | // setter to be added in the class AliTPCtrack | |
364 | // here I have to modify the AliTPCtrack class | |
365 | // adding the setters for Y and Z | |
366 | //dummyrt->SetY(ylrfNew); | |
367 | //dummyrt->SetZ(zlrfNew); | |
368 | ||
369 | // start fine-backpropagation inside the TOF | |
370 | Bool_t padNotFound =kTRUE; | |
371 | Bool_t isInStripsRegion=kTRUE; | |
372 | Double_t xk=dummyrt->GetX(); | |
373 | ||
374 | while (padNotFound && isInStripsRegion){ | |
375 | xk+=fStep; | |
376 | // here we assume a frame with air | |
377 | dummyrt->PropagateTo(xk,36.66,1.2931e-3); | |
378 | // get the running coordinates in the lrf | |
379 | // and alpha | |
380 | Double_t x=xk; | |
381 | Double_t y=dummyrt->GetY(); | |
382 | Double_t z=dummyrt->GetZ(); | |
383 | Double_t alpha=dummyrt->GetAlpha(); | |
384 | GetGlobalXYZ(alpha, x, y, z); | |
385 | ||
386 | // check if the point falls into a pad | |
387 | // using the G3 geometry | |
388 | Int_t* volumeID = new Int_t[AliTOFConstants::fgkmaxtoftree]; | |
389 | // volumeID[0] -> TOF Sector range [1-18] | |
390 | // volumeID[1] -> TOF Plate range [1- 5] | |
391 | // volumeID[2] -> TOF Strip max range [1-20] | |
392 | // volumeID[3] -> TOF Pad along Z range [1- 2] | |
393 | // volumeID[4] -> TOF Pad along X range [1-48] | |
394 | ||
395 | Float_t zInPadFrame=0.; | |
396 | Float_t xInPadFrame=0.; | |
397 | IsInsideThePad((Float_t)x,(Float_t)y,(Float_t)z, volumeID, zInPadFrame, xInPadFrame); | |
398 | // adding protection versus wrong volume numbering | |
399 | // to be released in the next release after debugging | |
400 | if(volumeID[4]){ | |
401 | padNotFound=kFALSE; | |
402 | nSlot++; | |
403 | secArray->Set(nSlot-1); | |
404 | plaArray->Set(nSlot-1); | |
405 | strArray->Set(nSlot-1); | |
406 | pdzArray->Set(nSlot-1); | |
407 | pdxArray->Set(nSlot-1); | |
408 | ||
409 | (*secArray)[nSlot-1]=volumeID[0]; | |
410 | (*plaArray)[nSlot-1]=volumeID[1]; | |
411 | (*strArray)[nSlot-1]=volumeID[2]; | |
412 | (*pdzArray)[nSlot-1]=volumeID[3]; | |
413 | (*pdxArray)[nSlot-1]=volumeID[4]; | |
414 | ||
415 | } // track falls into a pad volume | |
416 | ||
417 | delete [] volumeID; | |
418 | ||
419 | // check on xk to stop the fine-propagation | |
420 | if(xk>=(370.+stripRegionHeight)) isInStripsRegion=kFALSE; | |
421 | ||
422 | } // close the while for fine-propagation | |
423 | ||
424 | delete dummyrt; | |
425 | } // end loop on test tracks | |
426 | ||
427 | // start TOF digit finder | |
428 | Int_t assignedVol[5]={0,0,0,0,0}; | |
429 | Float_t tdc=-1.; | |
430 | Int_t* digitTrackArray=0x0; | |
431 | Bool_t assignedDigit=DigitFinder(secArray, plaArray, strArray, pdzArray, pdxArray, assignedVol, digitTrackArray, tdc); | |
432 | ||
433 | ||
434 | if(assignedDigit){ | |
435 | // fill the tree for tracks with time of flight | |
436 | // tof is given in tdc bin | |
437 | // conversion to [ns] | |
438 | Float_t binWidth=50.; // [ps] | |
439 | Float_t timeOfFlight=tdc*binWidth/1000.; | |
440 | ||
441 | // only the first track number contributing | |
442 | // to the assigned digit | |
443 | Int_t tofDigitTrackLabel=digitTrackArray[0]; | |
444 | ||
445 | // matching status for the current track | |
446 | Int_t matching=4; | |
447 | if(tpcTrackLabel==digitTrackArray[0] || tpcTrackLabel==digitTrackArray[1] || tpcTrackLabel==digitTrackArray[0]) matching=3; | |
448 | oTOFtracks->UpdateTrack(tofDigitTrackLabel, matching, timeOfFlight); | |
449 | } else { | |
450 | // fill the TClonesArray for tracks with no time of flight | |
451 | Int_t matching=1; | |
452 | oTOFtracks->SetMatchingStatus(matching); | |
453 | } | |
454 | ||
455 | // delete used memory for tmp arrays used by DigitFinder | |
456 | delete secArray; | |
457 | delete plaArray; | |
458 | delete strArray; | |
459 | delete pdzArray; | |
460 | delete pdxArray; | |
461 | ||
462 | } // close the if for succeded backpropagation in TOF acceptance along z | |
463 | ||
464 | } // end loop on reconstructed tracks | |
465 | ||
466 | // free used memory for digitmap | |
467 | delete fDigitsMap; | |
468 | ||
469 | // save array with TOF tracks | |
470 | Int_t output=SaveTracks(); | |
471 | if(output) cout << "Error writing TOF tracks " << endl; | |
472 | } | |
473 | ||
474 | ||
475 | //__________________________________________________________________ | |
476 | void AliTOFReconstructionerV2::Init(Option_t* opt) | |
477 | { | |
478 | // | |
479 | // Initialize the AliTOFReconstructionerV2 | |
480 | // | |
481 | // | |
482 | } | |
483 | ||
484 | ||
485 | //__________________________________________________________________ | |
486 | Int_t AliTOFReconstructionerV2::LoadTPCTracks() | |
487 | { | |
488 | // | |
489 | // Connect the tree and the branch | |
490 | // with reconstructed tracks | |
491 | // backpropagated in the TPC | |
492 | ||
493 | gBenchmark->Start("LoadTPCTracks"); | |
494 | ||
495 | TFile *kalFile = TFile::Open(fTPCBackTracksFile.Data()); | |
496 | if (!kalFile->IsOpen()) {cerr<<"Can't open AliTPCBackTracks.root !\n"; return 3;} | |
497 | ||
498 | // tracks from Kalman | |
499 | Int_t event=0; | |
500 | char treename[100]; sprintf(treename,"TreeT_TPCb_%d",event); | |
501 | fKalmanTree=(TTree*)kalFile->Get(treename); | |
502 | if (!fKalmanTree) {cerr<<"Can't get a tree with TPC back tracks !\n"; return 4;} | |
503 | ||
504 | // otherwise you get always 0 for 1/pt | |
505 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
506 | ||
507 | fBranchWithTracks=fKalmanTree->GetBranch("tracks"); | |
508 | Int_t kalEntries =(Int_t)fKalmanTree->GetEntries(); | |
509 | cout<<"Number of loaded Tracks :"<< kalEntries <<endl; | |
510 | ||
511 | gBenchmark->Stop("LoadTPCTracks"); | |
512 | gBenchmark->Show("LoadTPCTracks"); | |
513 | return 0; | |
514 | } | |
515 | ||
516 | //__________________________________________________________________ | |
517 | Int_t AliTOFReconstructionerV2::LoadTRDTracks() | |
518 | { | |
519 | // | |
520 | // Connect the tree and the branch | |
521 | // with reconstructed tracks in TRD | |
522 | ||
523 | gBenchmark->Start("LoadTRDTracks"); | |
524 | ||
525 | Int_t nEvent = 0; | |
526 | const Int_t nPrimaries = 84210/16; | |
527 | const Int_t maxIndex = nPrimaries; | |
528 | Int_t rtIndex[maxIndex]; | |
529 | ||
530 | TFile *tf=TFile::Open("AliTRDtracks.root"); | |
531 | ||
532 | if (!tf->IsOpen()) {cerr<<"Can't open AliTRDtracks.root !\n"; return 3;} | |
533 | TObjArray tarray(2000); | |
534 | char tname[100]; | |
535 | sprintf(tname,"TRDb_%d",nEvent); | |
536 | TTree *tracktree=(TTree*)tf->Get(tname); | |
537 | ||
538 | TBranch *tbranch=tracktree->GetBranch("tracks"); | |
539 | ||
540 | Int_t nRecTracks = (Int_t) tracktree->GetEntries(); | |
541 | cerr<<"Found "<<nRecTracks<<" entries in the track tree"<<endl; | |
542 | ||
543 | for (Int_t i=0; i<nRecTracks; i++) { | |
544 | AliTRDtrack *iotrack=new AliTRDtrack(); | |
545 | tbranch->SetAddress(&iotrack); | |
546 | tracktree->GetEvent(i); | |
547 | tarray.AddLast(iotrack); | |
548 | Int_t trackLabel = iotrack->GetLabel(); | |
549 | ||
550 | // printf("rt with %d clusters and label %d \n", | |
551 | // iotrack->GetNumberOfClusters(), trackLabel); | |
552 | ||
553 | if(trackLabel < 0) continue; | |
554 | if(trackLabel >= maxIndex) continue; | |
555 | rtIndex[trackLabel] = i; | |
556 | } | |
557 | tf->Close(); | |
558 | gBenchmark->Stop("LoadTRDTracks"); | |
559 | gBenchmark->Show("LoadTRDTracks"); | |
560 | return 0; | |
561 | ||
562 | } | |
563 | ||
564 | //__________________________________________________________________ | |
565 | Int_t AliTOFReconstructionerV2::LoadTOFDigits() | |
566 | { | |
567 | // | |
568 | // Connect the TClonesArray with TOF | |
569 | // digits and fill the digit map | |
570 | // used by the DigitFinder | |
571 | ||
572 | Int_t rc=0; | |
573 | ||
574 | gBenchmark->Start("LoadTOFDigits"); | |
575 | ||
576 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(fTOFDigitsFile.Data()); | |
577 | if(file){ | |
578 | cout<<"headerFile already open \n"; | |
579 | } | |
580 | else { | |
581 | if(!file)file=TFile::Open(fTOFDigitsFile.Data()); | |
582 | } | |
583 | ||
584 | // Get AliRun object from file | |
585 | if (!gAlice) { | |
586 | gAlice = (AliRun*)file->Get("gAlice"); | |
587 | if (gAlice) printf("AliRun object found on file\n"); | |
588 | } | |
589 | ||
590 | Int_t iEvNum = 0; | |
591 | if (iEvNum == 0) iEvNum = (Int_t) gAlice->TreeE()->GetEntries(); | |
592 | ||
593 | ||
594 | AliTOFdigit *tofdigit; | |
595 | ||
596 | AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ; | |
597 | ||
598 | if (!tof) { | |
599 | cout << "<LoadTOFDigits> No TOF detector found" << endl; | |
600 | rc = 2; | |
601 | return rc; | |
602 | } | |
603 | ||
604 | for (Int_t ievent = 0; ievent < iEvNum; ievent++) { | |
605 | ||
606 | gAlice->GetEvent(ievent) ; | |
607 | if(gAlice->TreeD()==0) { | |
608 | cout << "<LoadTOFDigits> No TreeD found" << endl; | |
609 | rc = 4; | |
610 | return rc; | |
611 | } | |
612 | ||
613 | ||
614 | Int_t ndig; | |
615 | gAlice->ResetDigits(); | |
616 | gAlice->TreeD()->GetEvent(ievent); | |
617 | fTOFDigits = tof->Digits(); | |
618 | ||
619 | ndig=fTOFDigits->GetEntries(); | |
620 | ||
621 | // create the digit map | |
622 | fDigitsMap = new AliTOFDigitMap(fTOFDigits); | |
623 | ||
624 | ||
625 | cout << "<LoadTOFDigits> found " << ndig | |
626 | << " TOF digits for event " << ievent << endl; | |
627 | ||
628 | for (Int_t k=0; k<ndig; k++) { | |
629 | tofdigit= (AliTOFdigit*) fTOFDigits->UncheckedAt(k); | |
630 | Float_t tdc=tofdigit->GetTdc(); | |
631 | // adc value can be used for weighting | |
632 | //Float_t adc=tofdigit->GetAdc(); | |
633 | ||
634 | // TOF digit volumes | |
635 | Int_t vol[5]; // location for a digit | |
636 | Int_t sector = tofdigit->GetSector(); // range [1-18] | |
637 | Int_t plate = tofdigit->GetPlate(); // range [1- 5] | |
638 | Int_t strip = tofdigit->GetStrip(); // range [1-20] | |
639 | Int_t padx = tofdigit->GetPadx(); // range [1-48] | |
640 | Int_t padz = tofdigit->GetPadz(); // range [1- 2] | |
641 | ||
642 | vol[0] = sector; | |
643 | vol[1] = plate; | |
644 | vol[2] = strip; | |
645 | vol[3] = padx; | |
646 | vol[4] = padz; | |
647 | ||
648 | // QA | |
649 | Bool_t isDigitBad = (sector<1 || sector>18 || plate<1 || plate >5 || padz<1 || padz>2 || padx<1 || padx>48); | |
650 | ||
651 | if (isDigitBad) { | |
652 | cout << "<LoadTOFDigits> strange digit found" << endl; | |
653 | rc = 3; | |
654 | return rc; | |
655 | } // if (isDigitBad) | |
656 | ||
657 | // Fill the digit map checking if the location is already used | |
658 | // in this case we take the earliest signal | |
659 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
660 | // start comparison in between the 2 digit | |
661 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
662 | if(tdc < (dig->GetTdc())) fDigitsMap->SetHit(vol,k); | |
663 | // we can add also the check on adc value | |
664 | // by selecting the largest adc value | |
665 | } else { | |
666 | fDigitsMap->SetHit(vol,k); | |
667 | } | |
668 | // to be added protection versus 2-digit on the same pad | |
669 | // we have to have memory also of the second digit | |
670 | ||
671 | } // for (k=0; k<ndig; k++) | |
672 | ||
673 | } // end loop on events | |
674 | ||
675 | gBenchmark->Stop("LoadTOFDigits"); | |
676 | gBenchmark->Show("LoadTOFDigits"); | |
677 | return rc; | |
678 | } | |
679 | ||
680 | //__________________________________________________________________ | |
681 | void AliTOFReconstructionerV2::IsInsideThePad(Float_t x, Float_t y, Float_t z, Int_t *nGeom, Float_t& zPad, Float_t& xPad) | |
682 | { | |
683 | // input: x,y,z - coordinates of a point in the mrf [cm] | |
684 | // output: array nGeom[] | |
685 | // nGeom[0] - the TOF sector number, 1,2,...,18 along azimuthal direction starting from -90 deg. | |
686 | // nGeom[1] - the TOF module number, 1,2,3,4,5=C,B,A,B,C along z-direction | |
687 | // nGeom[2] - the TOF strip number, 1,2,... along z-direction | |
688 | // nGeom[3] - the TOF padz number, 1,2=NPZ across a strip | |
689 | // nGeom[4] - the TOF padx number, 1,2,...,48=NPX along a strip | |
690 | // zPad, xPad - coordinates of the hit in the pad frame | |
691 | // numbering is adopted for the version 3.08 of AliRoot | |
692 | // example: | |
693 | // from Hits: sec,pla,str,padz,padx=4,2,14,2,35 | |
694 | // Vol. n.0: ALIC, copy number 1 | |
695 | // Vol. n.1: B077, copy number 1 | |
696 | // Vol. n.2: B074, copy number 5 | |
697 | // Vol. n.3: BTO2, copy number 1 | |
698 | // Vol. n.4: FTOB, copy number 2 | |
699 | // Vol. n.5: FLTB, copy number 0 | |
700 | // Vol. n.6: FSTR, copy number 14 | |
701 | // Vol. n.7: FSEN, copy number 0 | |
702 | // Vol. n.8: FSEZ, copy number 2 | |
703 | // Vol. n.9: FSEX, copy number 35 | |
704 | // Vol. n.10: FPAD, copy number 0 | |
705 | ||
706 | ||
707 | Float_t xTOF[3]; | |
708 | Int_t sector=0,module=0,strip=0,padz=0,padx=0; | |
709 | Int_t i,numed,nLevel,copyNumber; | |
710 | Gcvolu_t* gcvolu; | |
711 | char name[5]; | |
712 | name[4]=0; | |
713 | ||
714 | for (i=0; i<AliTOFConstants::fgkmaxtoftree; i++) nGeom[i]=0; | |
715 | zPad=100.; | |
716 | xPad=100.; | |
717 | ||
718 | xTOF[0]=x; | |
719 | xTOF[1]=y; | |
720 | xTOF[2]=z; | |
721 | ||
722 | fG3Geom->Gmedia(xTOF, numed); | |
723 | gcvolu=fG3Geom->Gcvolu(); | |
724 | nLevel=gcvolu->nlevel; | |
725 | if(fdbg) { | |
726 | for (Int_t i=0; i<nLevel; i++) { | |
727 | strncpy(name,(char*) (&gcvolu->names[i]),4); | |
728 | cout<<"Vol. n."<<i<<": "<<name<<", copy number "<<gcvolu->number[i]<<endl; | |
729 | } | |
730 | } | |
731 | if(nLevel>=2) { | |
732 | // sector type name: B071(1,2,...,10),B074(1,2,3,4,5-PHOS),B075(1,2,3-RICH) | |
733 | strncpy(name,(char*) (&gcvolu->names[2]),4); | |
734 | // volume copy: 1,2,...,10 for B071, 1,2,3,4,5 for B074, 1,2,3 for B075 | |
735 | copyNumber=gcvolu->number[2]; | |
736 | if(!strcmp(name,"B071")) { | |
737 | if (copyNumber>=6 && copyNumber<=8) { | |
738 | sector=copyNumber+10; | |
739 | } else if (copyNumber>=1 && copyNumber<=5){ | |
740 | sector=copyNumber+7; | |
741 | } else { | |
742 | sector=copyNumber-8; | |
743 | } | |
744 | } else if(!strcmp(name,"B075")) { | |
745 | sector=copyNumber+12; | |
746 | } else if(!strcmp(name,"B074")) { | |
747 | if (copyNumber>=1 && copyNumber<=3){ | |
748 | sector=copyNumber+4; | |
749 | } else { | |
750 | sector=copyNumber-1; | |
751 | } | |
752 | } | |
753 | } | |
754 | if(sector) { | |
755 | nGeom[0]=sector; | |
756 | if(nLevel>=4) { | |
757 | // we'll use the module value in z-direction: | |
758 | // 1 2 3 4 5 | |
759 | // the module order in z-direction: FTOC,FTOB,FTOA,FTOB,FTOC | |
760 | // the module copy: 2 2 0 1 1 | |
761 | // module type name: FTOA, FTOB, FTOC | |
762 | strncpy(name,(char*) (&gcvolu->names[4]),4); | |
763 | // module copy: | |
764 | copyNumber=gcvolu->number[4]; | |
765 | if(!strcmp(name,"FTOC")) { | |
766 | if (copyNumber==2) { | |
767 | module=1; | |
768 | } else { | |
769 | module=5; | |
770 | } | |
771 | } else if(!strcmp(name,"FTOB")) { | |
772 | if (copyNumber==2) { | |
773 | module=2; | |
774 | } else { | |
775 | module=4; | |
776 | } | |
777 | } else if(!strcmp(name,"FTOA")) { | |
778 | module=3; | |
779 | } | |
780 | } | |
781 | } | |
782 | ||
783 | if(module) { | |
784 | nGeom[1]=module; | |
785 | if(nLevel>=6) { | |
786 | // strip type name: FSTR | |
787 | strncpy(name,(char*) (&gcvolu->names[6]),4); | |
788 | // strip copy: | |
789 | copyNumber=gcvolu->number[6]; | |
790 | if(!strcmp(name,"FSTR")) strip=copyNumber; | |
791 | } | |
792 | } | |
793 | ||
794 | if(strip) { | |
795 | nGeom[2]=strip; | |
796 | if(nLevel>=8) { | |
797 | // padz type name: FSEZ | |
798 | strncpy(name,(char*) (&gcvolu->names[8]),4); | |
799 | // padz copy: | |
800 | copyNumber=gcvolu->number[8]; | |
801 | if(!strcmp(name,"FSEZ")) padz=copyNumber; | |
802 | } | |
803 | } | |
804 | if(padz) { | |
805 | nGeom[3]=padz; | |
806 | if(nLevel>=9) { | |
807 | // padx type name: FSEX | |
808 | strncpy(name,(char*) (&gcvolu->names[9]),4); | |
809 | // padx copy: | |
810 | copyNumber=gcvolu->number[9]; | |
811 | if(!strcmp(name,"FSEX")) padx=copyNumber; | |
812 | } | |
813 | } | |
814 | ||
815 | if(padx) { | |
816 | nGeom[4]=padx; | |
817 | zPad=gcvolu->glx[2]; | |
818 | xPad=gcvolu->glx[0]; | |
819 | } | |
820 | ||
821 | } | |
822 | ||
823 | //__________________________________________________________________ | |
824 | void AliTOFReconstructionerV2::GetGlobalXYZ(Double_t alpha, Double_t& x, Double_t& y, Double_t& z) | |
825 | { | |
826 | // | |
827 | // return the current running coordinates of | |
828 | // the track in the global reference frame | |
829 | // x, y and z have to initialized to the | |
830 | // local frame coordinates by the caller | |
831 | // alpha is the alpha coordinate in the TPC Kalman | |
832 | // reference frame | |
833 | ||
834 | // it take into account differences in between | |
835 | // TPC and TRD local coordinates frames | |
836 | if (alpha < -TMath::Pi()) alpha += 2*TMath::Pi(); | |
837 | else if (alpha >= TMath::Pi()) alpha -= 2*TMath::Pi(); | |
838 | ||
839 | // conversion | |
840 | Double_t tmp=x*TMath::Cos(alpha) - y*TMath::Sin(alpha); | |
841 | y=x*TMath::Sin(alpha) + y*TMath::Cos(alpha); | |
842 | x=tmp; | |
843 | } | |
844 | ||
845 | //__________________________________________________________________ | |
846 | Bool_t AliTOFReconstructionerV2::DigitFinder(TArrayI *secArray, TArrayI *plaArray, TArrayI *strArray, TArrayI *pdzArray, TArrayI *pdxArray, Int_t* assignedVol, Int_t* digitTrackArray, Float_t& tdc) | |
847 | { | |
848 | // | |
849 | // Description | |
850 | // input: arrays with sectors, plates, strips, padz, padx | |
851 | // found during fine-propagation of probe tracks | |
852 | // | |
853 | // output kFALSE if signal is not found | |
854 | // kTRUE if signal is found | |
855 | // in this case the assignedVol array contains the digit volume numbers | |
856 | // and digitTrackArray the track numbers (max 3) contributing to the | |
857 | // digit | |
858 | ||
859 | Bool_t dummy=kFALSE; | |
860 | Int_t nFilledSlot=secArray->GetSize(); | |
861 | ||
862 | // start loop | |
863 | Float_t maxWeight=-1.; | |
864 | Int_t indexOfMaxWeight=-1; | |
865 | for (Int_t i = 0; i < nFilledSlot; i++) { | |
866 | Int_t vol[5]; // location for a digit | |
867 | vol[0] = (*secArray)[i]; | |
868 | vol[1] = (*plaArray)[i]; | |
869 | vol[2] = (*strArray)[i]; | |
870 | vol[3] = (*pdxArray)[i]; | |
871 | vol[4] = (*pdzArray)[i]; | |
872 | ||
873 | // check for digit in the current location | |
874 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
875 | ||
876 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
877 | Float_t adcWeight=dig->GetAdc(); | |
878 | if(adcWeight > maxWeight){ | |
879 | maxWeight=adcWeight; | |
880 | indexOfMaxWeight=i; | |
881 | tdc=dig->GetTdc(); | |
882 | digitTrackArray=dig->GetTracks(); | |
883 | ||
884 | } // if(adcWeight > maxWeight) | |
885 | } // close if (fDigitsMap->TestHit(vol) != kEmpty) | |
886 | ||
887 | } // end loop | |
888 | ||
889 | if(indexOfMaxWeight!=-1){ | |
890 | assignedVol[0]=(*secArray)[indexOfMaxWeight]; | |
891 | assignedVol[1]=(*plaArray)[indexOfMaxWeight]; | |
892 | assignedVol[2]=(*strArray)[indexOfMaxWeight]; | |
893 | assignedVol[3]=(*pdxArray)[indexOfMaxWeight]; | |
894 | assignedVol[4]=(*pdzArray)[indexOfMaxWeight]; | |
895 | dummy=kTRUE; | |
896 | } | |
897 | ||
898 | return dummy; | |
899 | } | |
900 | ||
901 | //__________________________________________________________________ | |
902 | Int_t AliTOFReconstructionerV2::SaveTracks(const Char_t *outname, const Int_t split) | |
903 | { | |
904 | // | |
905 | // save reconstructed tracks into | |
906 | // outname file | |
907 | // | |
908 | TDirectory *savedir=gDirectory; | |
909 | const Char_t *name="Writing Output"; | |
910 | cerr<<'\n'<<name<<"...\n"; | |
911 | gBenchmark->Start(name); | |
912 | ||
913 | TFile *out=TFile::Open(outname,"RECREATE"); | |
914 | if (!out->IsOpen()) { | |
915 | cerr<<"AliTOFReconstructionerV2::SaveTracks(): "; | |
916 | cerr<<"file for TOF tracks is not open !\n"; | |
917 | return 2; | |
918 | } | |
919 | ||
920 | out->cd(); | |
921 | TTree T("T","tree with TOF tracks"); | |
922 | T.Branch("tracks",&fTOFTracks,256000,split); | |
923 | ||
924 | ||
925 | T.Fill(); | |
926 | T.Write(); | |
927 | savedir->cd(); | |
928 | out->Close(); | |
929 | return 0; | |
930 | gBenchmark->Stop(name); | |
931 | gBenchmark->Show(name); | |
932 | } | |
933 | ||
934 | //__________________________________________________________________ | |
935 | void AliTOFReconstructionerV2::Comparison(Int_t* rtIndex) | |
936 | { | |
937 | // | |
938 | // perform MC comparison | |
939 | // used also for track length | |
940 | // for the time being | |
941 | // Connect the AliRoot file containing Geometry, Kine, Hits, and Digits | |
942 | ||
943 | ||
944 | Int_t nEvent = 0; | |
945 | Char_t *alifile = "galice.root"; | |
946 | ||
947 | TFile *gafl = (TFile*) gROOT->GetListOfFiles()->FindObject(alifile); | |
948 | if (!gafl) { | |
949 | cout << "Open the ALIROOT-file " << alifile << endl; | |
950 | gafl = new TFile(alifile); | |
951 | } | |
952 | else { | |
953 | cout << alifile << " is already open" << endl; | |
954 | } | |
955 | ||
956 | // Get AliRun object from file or create it if not on file | |
957 | gAlice = (AliRun*) gafl->Get("gAlice"); | |
958 | if (gAlice) | |
959 | cout << "AliRun object found on file" << endl; | |
960 | else | |
961 | gAlice = new AliRun("gAlice","Alice test program"); | |
962 | ||
963 | ||
964 | // Import the Trees for the event nEvent in the file | |
965 | const Int_t nparticles = gAlice->GetEvent(nEvent); | |
966 | if (nparticles <= 0) return; | |
967 | ||
968 | // Get pointers to Alice detectors and Hits containers | |
969 | AliDetector *TOF = gAlice->GetDetector("TOF"); | |
970 | Int_t ntracks = (Int_t) gAlice->TreeH()->GetEntries(); | |
971 | ||
972 | // Start loop on tracks in the hits containers | |
973 | for (Int_t track=0; track < ntracks; track++) { | |
974 | ||
975 | if(TOF) { | |
976 | for(AliTOFhitT0* tofHit = (AliTOFhitT0*)TOF->FirstHit(track); | |
977 | tofHit; | |
978 | tofHit=(AliTOFhitT0*)TOF->NextHit()) { | |
979 | ||
980 | Int_t ipart = tofHit->GetTrack(); | |
981 | if(ipart >= 80000) continue; | |
982 | if(rtIndex[ipart] < 0) continue; | |
983 | ||
984 | TParticle *part = gAlice->Particle(ipart); | |
985 | ||
986 | // get first the pdg code | |
987 | Int_t pdgCode=part->GetPdgCode(); | |
988 | ||
989 | // then track length | |
990 | Float_t trackLength=tofHit->GetLen(); // [cm] | |
991 | ||
992 | // update the tof TClonesArray with TOF tracks | |
993 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(rtIndex[ipart]); | |
994 | oTOFtracks->UpdateTrack(pdgCode,trackLength); | |
995 | ||
996 | } // loop on hits connected to the current track | |
997 | } // if(TOF) | |
998 | } // end loop on primary tracks | |
999 | } |