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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 | ||
88cb7938 | 16 | /* $Id$ */ |
17 | ||
bf6bf84c | 18 | //_________________________________________________________________________ |
19 | // This is a TTask for reconstruction V2 in TOF | |
20 | // Description of the algorithm | |
21 | //-- Author: F. Pierella | pierella@bo.infn.it | |
22 | ////////////////////////////////////////////////////////////////////////////// | |
23 | ||
88cb7938 | 24 | |
f8014e68 | 25 | #include <Riostream.h> |
88cb7938 | 26 | #include <stdlib.h> |
27 | ||
28 | #include <TBenchmark.h> | |
29 | #include <TClonesArray.h> | |
30 | #include <TFile.h> | |
31 | #include <TFolder.h> | |
32 | #include <TGeant3.h> | |
33 | #include <TParticle.h> | |
34 | #include <TROOT.h> | |
35 | #include <TSystem.h> | |
36 | #include <TTask.h> | |
37 | #include <TTree.h> | |
38 | #include <TVirtualMC.h> | |
bf6bf84c | 39 | |
88cb7938 | 40 | #include "../TPC/AliTPCtrack.h" |
41 | #include "../TRD/AliTRDtrack.h" | |
bf6bf84c | 42 | #include "AliDetector.h" |
88cb7938 | 43 | #include "AliHeader.h" |
44 | #include "AliKalmanTrack.h" | |
45 | #include "AliLoader.h" | |
bf6bf84c | 46 | #include "AliRun.h" |
88cb7938 | 47 | #include "AliRunLoader.h" |
bf6bf84c | 48 | #include "AliTOF.h" |
88cb7938 | 49 | #include "AliTOFConstants.h" |
bf6bf84c | 50 | #include "AliTOFDigitMap.h" |
51 | #include "AliTOFHitMap.h" | |
bf6bf84c | 52 | #include "AliTOFReconstructionerV2.h" |
53 | #include "AliTOFTrackV2.h" | |
88cb7938 | 54 | #include "AliTOFdigit.h" |
55 | #include "AliTOFhitT0.h" | |
bf6bf84c | 56 | |
57 | ClassImp(AliTOFReconstructionerV2) | |
58 | ||
59 | //____________________________________________________________________________ | |
60 | AliTOFReconstructionerV2::AliTOFReconstructionerV2():TTask("AliTOFReconstructionerV2","") | |
61 | { | |
62 | // | |
63 | // std ctor | |
64 | // set all member vars to zero | |
65 | // | |
66 | fdbg =0; | |
67 | fDigitsMap=0x0; | |
68 | fField =0; | |
bf6bf84c | 69 | fNDummyTracks=0; |
70 | fScaleSigmaFactor=0.; | |
71 | fStep =0; | |
72 | fTOFDigits=0x0; | |
73 | fTOFTracks=0x0; | |
74 | fTOFDigitsFile ="digits.root"; | |
75 | fTPCBackTracksFile="AliTPCBackTracks.root"; | |
76 | fKalmanTree =0x0; | |
77 | fBranchWithTracks =0x0; | |
78 | } | |
79 | ||
80 | //____________________________________________________________________________ | |
81 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(char* tpcBackTracks, char* tofDigits):TTask("AliTOFReconstructionerV2","") | |
82 | { | |
83 | // | |
84 | // par ctor | |
85 | // default arguments are specified only in | |
86 | // the header file | |
87 | // Parameters: | |
88 | // tpcBackTracks -> file name with backpropagated tracks in TPC | |
89 | // tofDigits -> file name with TOF digits | |
90 | // | |
91 | ||
92 | fdbg =0; | |
93 | fDigitsMap=0x0; | |
94 | fField =0.2; // default value 0.2 [Tesla] | |
95 | fNDummyTracks=20; // by default 20 test tracks used | |
96 | fScaleSigmaFactor=1.; | |
97 | fStep =0.01; // [cm] | |
98 | fTOFDigits=0x0; | |
99 | fTOFTracks=0x0; | |
100 | fTOFDigitsFile =tofDigits; | |
101 | fTPCBackTracksFile=tpcBackTracks; | |
102 | fKalmanTree =0x0; | |
103 | fBranchWithTracks =0x0; | |
104 | ||
105 | // initialize the G3 geometry | |
106 | gAlice->Init(); | |
107 | gAlice->Print(); | |
bf6bf84c | 108 | |
109 | // add Task to //root/Tasks folder | |
110 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
111 | roottasks->Add(this) ; | |
112 | } | |
113 | ||
114 | //____________________________________________________________________________ | |
cfa58405 | 115 | AliTOFReconstructionerV2::AliTOFReconstructionerV2(const AliTOFReconstructionerV2 & /*rec*/) |
116 | :TTask("AliTOFReconstructionerV2","") | |
bf6bf84c | 117 | { |
118 | // | |
119 | // Dummy copy constructor | |
120 | // required by coding conventions | |
121 | ; | |
122 | } | |
123 | ||
124 | ||
125 | ||
126 | //____________________________________________________________________________ | |
127 | AliTOFReconstructionerV2::~AliTOFReconstructionerV2() | |
128 | { | |
129 | // | |
130 | // dtor | |
131 | // some delete has to be moved | |
132 | // | |
133 | ||
134 | if (fDigitsMap) | |
135 | { | |
136 | delete fDigitsMap; | |
137 | fDigitsMap = 0; | |
138 | } | |
139 | ||
bf6bf84c | 140 | if (fTOFDigits) |
141 | { | |
142 | delete fTOFDigits; | |
143 | fTOFDigits = 0; | |
144 | } | |
145 | ||
146 | if (fTOFTracks) | |
147 | { | |
148 | delete fTOFTracks; | |
149 | fTOFTracks = 0; | |
150 | } | |
151 | ||
152 | if (fTOFDigitsFile) | |
153 | { | |
154 | delete fTOFDigitsFile; | |
155 | } | |
156 | ||
157 | if (fTPCBackTracksFile) | |
158 | { | |
159 | delete fTPCBackTracksFile; | |
160 | } | |
161 | ||
162 | if (fKalmanTree) | |
163 | { | |
164 | delete fKalmanTree; | |
165 | fKalmanTree = 0; | |
166 | } | |
167 | ||
168 | if (fBranchWithTracks) | |
169 | { | |
170 | delete fBranchWithTracks; | |
171 | fBranchWithTracks = 0; | |
172 | } | |
173 | } | |
174 | ||
175 | ||
176 | //____________________________________________________________________________ | |
177 | void AliTOFReconstructionerV2::Exec(Option_t* option) | |
178 | { | |
179 | // | |
180 | // Description of the algorithm: | |
181 | // | |
182 | // | |
183 | // | |
184 | // | |
185 | // | |
186 | // | |
187 | ||
188 | // load TOF digits and fill the digit map | |
189 | Int_t tofDigitsLoading=LoadTOFDigits(); | |
190 | ||
191 | // load back-propagated tracks in TPC | |
192 | Int_t tpcTracksLoading=LoadTPCTracks(); | |
193 | ||
194 | if(tofDigitsLoading || tpcTracksLoading) { | |
195 | cout<<" Couldn't start reconstruction V2. Exit."<<endl; | |
196 | exit(1); | |
197 | } | |
198 | // or load TRD reconstructed tracks | |
199 | // Int_t trdTracksLoading=LoadTRDTracks(); | |
200 | ||
201 | // create a TObjArray to store reconstructed tracks | |
202 | // and reject fake tracks | |
203 | const Int_t maxRecTracks = 10000; // max number of reconstructed tracks | |
204 | // per event | |
205 | ||
206 | const Float_t stripRegionHeight = 15.3; // [cm] height in radial direction | |
207 | // of the volume where strips are placed | |
208 | TObjArray trackArray(maxRecTracks); | |
209 | ||
210 | // buffer for output | |
211 | fTOFTracks= new TClonesArray("AliTOFTrackV2"); | |
212 | // create a reference to fill the TClonesArray | |
213 | TClonesArray &aTOFTracks = *fTOFTracks; | |
214 | ||
215 | const Int_t maxIndex = 100000; // max number of primary tracks to be analysed | |
216 | // the index of the rtIndex array is the track label | |
217 | // the content of the array is -1 for fake tracks | |
218 | // and the track index for good tracks | |
219 | Float_t dEdXarray[maxRecTracks]; | |
220 | Int_t rtIndex[maxIndex]; | |
221 | for(Int_t i = 0; i < maxIndex; i++) rtIndex[i] = -1; | |
222 | ||
223 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
224 | ||
225 | Int_t nRecTracks = (Int_t) fKalmanTree->GetEntries(); | |
226 | cout<<"Found "<<nRecTracks<<" entries in the track tree "<<endl; | |
227 | ||
228 | // load the tracks into the array | |
229 | for (Int_t i=0; i<nRecTracks; i++) { | |
230 | AliTPCtrack *iotrack=new AliTPCtrack(); | |
231 | fBranchWithTracks->SetAddress(&iotrack); | |
232 | fKalmanTree->GetEvent(i); | |
233 | trackArray.AddLast(iotrack); | |
234 | Int_t trackLabel = iotrack->GetLabel(); | |
235 | dEdXarray[i]=iotrack->GetdEdx(); // usefull for PID | |
236 | // | |
237 | // start filling the TClonesArray of AliTOFTrackV2 | |
238 | Float_t trdXYZ[3]={0.,0.,0.}; | |
239 | Float_t trdPxPyPz[3]={0.,0.,0.}; | |
240 | ||
241 | // tpc outer wall positions | |
242 | Double_t xk=iotrack->GetX(); | |
243 | // get the running coordinates in the lrf | |
244 | // and alpha | |
245 | Double_t x=xk; | |
246 | Double_t y=iotrack->GetY(); | |
247 | Double_t z=iotrack->GetZ(); | |
248 | Double_t alpha=iotrack->GetAlpha(); | |
249 | GetGlobalXYZ(alpha, x, y, z); | |
250 | Float_t tpcXYZ[3]={x,y,z}; | |
251 | ||
252 | // momentum at the end of TPC | |
253 | Float_t lambda=TMath::ATan(iotrack->GetTgl()); | |
254 | Float_t invpt=TMath::Abs(iotrack->Get1Pt()); | |
255 | Float_t pt=-99.; | |
256 | if (invpt) pt= 1./invpt; // pt | |
257 | Float_t tpcmom=1./(invpt*TMath::Cos(lambda)); | |
258 | Float_t pz=tpcmom*TMath::Sin(lambda); | |
259 | Float_t tpcPtPz[2]={pt,pz}; | |
260 | ||
261 | Int_t matchingStatus=-1; | |
262 | if(trackLabel < 0) matchingStatus=0; | |
263 | new(aTOFTracks[i]) AliTOFTrackV2(trackLabel,matchingStatus,tpcmom,dEdXarray[i],tpcXYZ,tpcPtPz,trdXYZ,trdPxPyPz); | |
264 | // printf("rt with %d clusters and label %d \n", | |
265 | // iotrack->GetNumberOfClusters(), trackLabel); | |
266 | ||
267 | if(trackLabel < 0) continue; | |
268 | if(trackLabel >= maxIndex) continue; | |
269 | rtIndex[trackLabel] = i; | |
270 | delete iotrack; | |
271 | } | |
272 | ||
273 | if(strstr(option,"MC")) Comparison(rtIndex); | |
274 | ||
275 | // start loop on tracks | |
276 | // and backpropagate them from TPC to TOF | |
277 | // backpropagation is performed only | |
278 | // for good tracks (fake tracks rejected) | |
279 | AliTPCtrack *rt; | |
280 | ||
281 | for (Int_t i=0; i<nRecTracks; i++) { | |
282 | ||
283 | //******* tracking: extract track coordinates, momentum, etc. | |
284 | rt = (AliTPCtrack*) trackArray.UncheckedAt(i); | |
285 | // track length to be implemented | |
286 | // Double_t tr_length = rt->GetLength(); | |
287 | ||
288 | Int_t tpcTrackLabel=rt->GetLabel(); | |
289 | // reject fake tracks | |
290 | //if(tpcTrackLabel< 0) continue; | |
291 | ||
292 | // starting backpropagation to TOF | |
293 | // here we assume to have backpropagated tracks in TPC | |
294 | // starting point xk=246.055 | |
295 | // starting back propagation | |
296 | // outer wall of the TPC | |
297 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
298 | // frame with air just to the beginning of the TOF | |
299 | Int_t iFrameWithAir=rt->PropagateTo(370.,36.66,1.2931e-3); | |
300 | // trough the wall of the TOF plate | |
301 | // thickness has changed according to the | |
302 | // last value | |
303 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
304 | ||
305 | /* | |
306 | // outer wall of the TPC | |
307 | Int_t iOuterTPCWall=rt->PropagateTo(261.53,40.,0.06124); | |
308 | // air in between TPC and TRD | |
309 | Int_t iFrameWithAir=rt->PropagateTo(294.5,36.66,1.2931e-3); | |
310 | // TRD itself | |
311 | // mean density for the TRD calculated from | |
312 | // TRD Technical Design Report | |
313 | // page 11 -> global thickness | |
314 | // page 23 -> different main layers thickness (Radiator Air/ Drift Chamber Gas /G10) | |
315 | // page 139 -> material budget and radiation lengths | |
316 | Int_t iTRD=rt->PropagateTo(369.1,171.7,0.33); | |
317 | // air in between TRD and TOF | |
318 | Int_t iFrameWithAirbis=rt->PropagateTo(370.,36.66,1.2931e-3); | |
319 | // trough the wall of the TOF plate | |
320 | Int_t iTOFWall=rt->PropagateTo(370.11,24.01,2.7); | |
321 | */ | |
322 | ||
323 | // select only cases when | |
324 | // backpropagation succeded | |
325 | // and particle is in the geometrical TOF acceptance along Z | |
326 | // |z|<380 [cm] | |
327 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(i); | |
328 | Bool_t outOfZacceptance=(rt->GetZ()<=380.); | |
329 | if(outOfZacceptance) oTOFtracks->SetMatchingStatus(-2); | |
330 | ||
331 | if(iOuterTPCWall==1 && iFrameWithAir==1 && iTOFWall==1 && (!outOfZacceptance)){ | |
332 | Double_t cc[15]; | |
333 | // get sigmaY and sigmaZ | |
334 | rt->GetExternalCovariance(cc); | |
d8cf2f16 | 335 | //Double_t sigmaY =TMath::Sqrt(cc[0]); // [cm] |
336 | //Double_t sigmaZ =TMath::Sqrt(cc[2]); // [cm] | |
bf6bf84c | 337 | |
338 | // arrays used by the DigitFinder | |
339 | Int_t nSlot=1; | |
340 | TArrayI *secArray= new TArrayI(nSlot); | |
341 | TArrayI *plaArray= new TArrayI(nSlot); | |
342 | TArrayI *strArray= new TArrayI(nSlot); | |
343 | TArrayI *pdzArray= new TArrayI(nSlot); | |
344 | TArrayI *pdxArray= new TArrayI(nSlot); | |
345 | ||
346 | // make fNDummyTracks clones of the current backpropagated track | |
347 | // make a copy of the current track | |
348 | // smear according to the backpropagated area | |
349 | for (Int_t j=0; j<fNDummyTracks; i++) { | |
350 | AliTPCtrack *dummyrt=new AliTPCtrack(*rt); | |
351 | // get ylrf and zlrf | |
d8cf2f16 | 352 | //Double_t ylrf= dummyrt->GetY(); // P0 |
353 | //Double_t zlrf= dummyrt->GetZ(); // P1 | |
bf6bf84c | 354 | |
355 | // smear according to sigmaY and sigmaZ | |
be167bf4 | 356 | //Double_t ylrfNew=gRandom->Gaus(ylrf,fScaleSigmaFactor*sigmaY); |
357 | //Double_t zlrfNew=gRandom->Gaus(zlrf,fScaleSigmaFactor*sigmaZ); | |
bf6bf84c | 358 | |
359 | // set Y and Z accordingly | |
360 | // setter to be added in the class AliTPCtrack | |
361 | // here I have to modify the AliTPCtrack class | |
362 | // adding the setters for Y and Z | |
363 | //dummyrt->SetY(ylrfNew); | |
364 | //dummyrt->SetZ(zlrfNew); | |
365 | ||
366 | // start fine-backpropagation inside the TOF | |
367 | Bool_t padNotFound =kTRUE; | |
368 | Bool_t isInStripsRegion=kTRUE; | |
369 | Double_t xk=dummyrt->GetX(); | |
370 | ||
371 | while (padNotFound && isInStripsRegion){ | |
372 | xk+=fStep; | |
373 | // here we assume a frame with air | |
374 | dummyrt->PropagateTo(xk,36.66,1.2931e-3); | |
375 | // get the running coordinates in the lrf | |
376 | // and alpha | |
377 | Double_t x=xk; | |
378 | Double_t y=dummyrt->GetY(); | |
379 | Double_t z=dummyrt->GetZ(); | |
380 | Double_t alpha=dummyrt->GetAlpha(); | |
381 | GetGlobalXYZ(alpha, x, y, z); | |
382 | ||
383 | // check if the point falls into a pad | |
384 | // using the G3 geometry | |
385 | Int_t* volumeID = new Int_t[AliTOFConstants::fgkmaxtoftree]; | |
386 | // volumeID[0] -> TOF Sector range [1-18] | |
387 | // volumeID[1] -> TOF Plate range [1- 5] | |
388 | // volumeID[2] -> TOF Strip max range [1-20] | |
389 | // volumeID[3] -> TOF Pad along Z range [1- 2] | |
390 | // volumeID[4] -> TOF Pad along X range [1-48] | |
391 | ||
392 | Float_t zInPadFrame=0.; | |
393 | Float_t xInPadFrame=0.; | |
394 | IsInsideThePad((Float_t)x,(Float_t)y,(Float_t)z, volumeID, zInPadFrame, xInPadFrame); | |
395 | // adding protection versus wrong volume numbering | |
396 | // to be released in the next release after debugging | |
397 | if(volumeID[4]){ | |
398 | padNotFound=kFALSE; | |
399 | nSlot++; | |
400 | secArray->Set(nSlot-1); | |
401 | plaArray->Set(nSlot-1); | |
402 | strArray->Set(nSlot-1); | |
403 | pdzArray->Set(nSlot-1); | |
404 | pdxArray->Set(nSlot-1); | |
405 | ||
406 | (*secArray)[nSlot-1]=volumeID[0]; | |
407 | (*plaArray)[nSlot-1]=volumeID[1]; | |
408 | (*strArray)[nSlot-1]=volumeID[2]; | |
409 | (*pdzArray)[nSlot-1]=volumeID[3]; | |
410 | (*pdxArray)[nSlot-1]=volumeID[4]; | |
411 | ||
412 | } // track falls into a pad volume | |
413 | ||
414 | delete [] volumeID; | |
415 | ||
416 | // check on xk to stop the fine-propagation | |
417 | if(xk>=(370.+stripRegionHeight)) isInStripsRegion=kFALSE; | |
418 | ||
419 | } // close the while for fine-propagation | |
420 | ||
421 | delete dummyrt; | |
422 | } // end loop on test tracks | |
423 | ||
424 | // start TOF digit finder | |
425 | Int_t assignedVol[5]={0,0,0,0,0}; | |
426 | Float_t tdc=-1.; | |
427 | Int_t* digitTrackArray=0x0; | |
428 | Bool_t assignedDigit=DigitFinder(secArray, plaArray, strArray, pdzArray, pdxArray, assignedVol, digitTrackArray, tdc); | |
429 | ||
430 | ||
431 | if(assignedDigit){ | |
432 | // fill the tree for tracks with time of flight | |
433 | // tof is given in tdc bin | |
434 | // conversion to [ns] | |
435 | Float_t binWidth=50.; // [ps] | |
436 | Float_t timeOfFlight=tdc*binWidth/1000.; | |
437 | ||
438 | // only the first track number contributing | |
439 | // to the assigned digit | |
440 | Int_t tofDigitTrackLabel=digitTrackArray[0]; | |
441 | ||
442 | // matching status for the current track | |
443 | Int_t matching=4; | |
444 | if(tpcTrackLabel==digitTrackArray[0] || tpcTrackLabel==digitTrackArray[1] || tpcTrackLabel==digitTrackArray[0]) matching=3; | |
445 | oTOFtracks->UpdateTrack(tofDigitTrackLabel, matching, timeOfFlight); | |
446 | } else { | |
447 | // fill the TClonesArray for tracks with no time of flight | |
448 | Int_t matching=1; | |
449 | oTOFtracks->SetMatchingStatus(matching); | |
450 | } | |
451 | ||
452 | // delete used memory for tmp arrays used by DigitFinder | |
453 | delete secArray; | |
454 | delete plaArray; | |
455 | delete strArray; | |
456 | delete pdzArray; | |
457 | delete pdxArray; | |
458 | ||
459 | } // close the if for succeded backpropagation in TOF acceptance along z | |
460 | ||
461 | } // end loop on reconstructed tracks | |
462 | ||
463 | // free used memory for digitmap | |
464 | delete fDigitsMap; | |
465 | ||
466 | // save array with TOF tracks | |
467 | Int_t output=SaveTracks(); | |
468 | if(output) cout << "Error writing TOF tracks " << endl; | |
469 | } | |
470 | ||
471 | ||
472 | //__________________________________________________________________ | |
cfa58405 | 473 | void AliTOFReconstructionerV2::Init(Option_t* /*opt*/) |
bf6bf84c | 474 | { |
475 | // | |
476 | // Initialize the AliTOFReconstructionerV2 | |
477 | // | |
478 | // | |
479 | } | |
480 | ||
481 | ||
482 | //__________________________________________________________________ | |
483 | Int_t AliTOFReconstructionerV2::LoadTPCTracks() | |
484 | { | |
485 | // | |
486 | // Connect the tree and the branch | |
487 | // with reconstructed tracks | |
488 | // backpropagated in the TPC | |
489 | ||
490 | gBenchmark->Start("LoadTPCTracks"); | |
491 | ||
492 | TFile *kalFile = TFile::Open(fTPCBackTracksFile.Data()); | |
493 | if (!kalFile->IsOpen()) {cerr<<"Can't open AliTPCBackTracks.root !\n"; return 3;} | |
494 | ||
495 | // tracks from Kalman | |
496 | Int_t event=0; | |
497 | char treename[100]; sprintf(treename,"TreeT_TPCb_%d",event); | |
498 | fKalmanTree=(TTree*)kalFile->Get(treename); | |
499 | if (!fKalmanTree) {cerr<<"Can't get a tree with TPC back tracks !\n"; return 4;} | |
500 | ||
501 | // otherwise you get always 0 for 1/pt | |
502 | AliKalmanTrack::SetConvConst(100/0.299792458/fField); | |
503 | ||
504 | fBranchWithTracks=fKalmanTree->GetBranch("tracks"); | |
505 | Int_t kalEntries =(Int_t)fKalmanTree->GetEntries(); | |
506 | cout<<"Number of loaded Tracks :"<< kalEntries <<endl; | |
507 | ||
508 | gBenchmark->Stop("LoadTPCTracks"); | |
509 | gBenchmark->Show("LoadTPCTracks"); | |
510 | return 0; | |
511 | } | |
512 | ||
513 | //__________________________________________________________________ | |
514 | Int_t AliTOFReconstructionerV2::LoadTRDTracks() | |
515 | { | |
516 | // | |
517 | // Connect the tree and the branch | |
518 | // with reconstructed tracks in TRD | |
519 | ||
520 | gBenchmark->Start("LoadTRDTracks"); | |
521 | ||
522 | Int_t nEvent = 0; | |
523 | const Int_t nPrimaries = 84210/16; | |
524 | const Int_t maxIndex = nPrimaries; | |
525 | Int_t rtIndex[maxIndex]; | |
526 | ||
527 | TFile *tf=TFile::Open("AliTRDtracks.root"); | |
528 | ||
529 | if (!tf->IsOpen()) {cerr<<"Can't open AliTRDtracks.root !\n"; return 3;} | |
530 | TObjArray tarray(2000); | |
531 | char tname[100]; | |
532 | sprintf(tname,"TRDb_%d",nEvent); | |
533 | TTree *tracktree=(TTree*)tf->Get(tname); | |
534 | ||
535 | TBranch *tbranch=tracktree->GetBranch("tracks"); | |
536 | ||
537 | Int_t nRecTracks = (Int_t) tracktree->GetEntries(); | |
538 | cerr<<"Found "<<nRecTracks<<" entries in the track tree"<<endl; | |
539 | ||
540 | for (Int_t i=0; i<nRecTracks; i++) { | |
541 | AliTRDtrack *iotrack=new AliTRDtrack(); | |
542 | tbranch->SetAddress(&iotrack); | |
543 | tracktree->GetEvent(i); | |
544 | tarray.AddLast(iotrack); | |
545 | Int_t trackLabel = iotrack->GetLabel(); | |
546 | ||
547 | // printf("rt with %d clusters and label %d \n", | |
548 | // iotrack->GetNumberOfClusters(), trackLabel); | |
549 | ||
550 | if(trackLabel < 0) continue; | |
551 | if(trackLabel >= maxIndex) continue; | |
552 | rtIndex[trackLabel] = i; | |
553 | } | |
554 | tf->Close(); | |
555 | gBenchmark->Stop("LoadTRDTracks"); | |
556 | gBenchmark->Show("LoadTRDTracks"); | |
557 | return 0; | |
558 | ||
559 | } | |
560 | ||
561 | //__________________________________________________________________ | |
562 | Int_t AliTOFReconstructionerV2::LoadTOFDigits() | |
563 | { | |
564 | // | |
565 | // Connect the TClonesArray with TOF | |
566 | // digits and fill the digit map | |
567 | // used by the DigitFinder | |
568 | ||
569 | Int_t rc=0; | |
570 | ||
571 | gBenchmark->Start("LoadTOFDigits"); | |
572 | ||
573 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(fTOFDigitsFile.Data()); | |
574 | if(file){ | |
575 | cout<<"headerFile already open \n"; | |
576 | } | |
577 | else { | |
578 | if(!file)file=TFile::Open(fTOFDigitsFile.Data()); | |
579 | } | |
580 | ||
581 | // Get AliRun object from file | |
582 | if (!gAlice) { | |
583 | gAlice = (AliRun*)file->Get("gAlice"); | |
584 | if (gAlice) printf("AliRun object found on file\n"); | |
585 | } | |
586 | ||
587 | Int_t iEvNum = 0; | |
588 | if (iEvNum == 0) iEvNum = (Int_t) gAlice->TreeE()->GetEntries(); | |
589 | ||
590 | ||
591 | AliTOFdigit *tofdigit; | |
592 | ||
593 | AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ; | |
594 | ||
595 | if (!tof) { | |
596 | cout << "<LoadTOFDigits> No TOF detector found" << endl; | |
597 | rc = 2; | |
598 | return rc; | |
599 | } | |
600 | ||
601 | for (Int_t ievent = 0; ievent < iEvNum; ievent++) { | |
602 | ||
603 | gAlice->GetEvent(ievent) ; | |
604 | if(gAlice->TreeD()==0) { | |
605 | cout << "<LoadTOFDigits> No TreeD found" << endl; | |
606 | rc = 4; | |
607 | return rc; | |
608 | } | |
609 | ||
610 | ||
611 | Int_t ndig; | |
612 | gAlice->ResetDigits(); | |
613 | gAlice->TreeD()->GetEvent(ievent); | |
614 | fTOFDigits = tof->Digits(); | |
615 | ||
616 | ndig=fTOFDigits->GetEntries(); | |
617 | ||
618 | // create the digit map | |
619 | fDigitsMap = new AliTOFDigitMap(fTOFDigits); | |
620 | ||
621 | ||
622 | cout << "<LoadTOFDigits> found " << ndig | |
623 | << " TOF digits for event " << ievent << endl; | |
624 | ||
625 | for (Int_t k=0; k<ndig; k++) { | |
626 | tofdigit= (AliTOFdigit*) fTOFDigits->UncheckedAt(k); | |
627 | Float_t tdc=tofdigit->GetTdc(); | |
628 | // adc value can be used for weighting | |
629 | //Float_t adc=tofdigit->GetAdc(); | |
630 | ||
631 | // TOF digit volumes | |
632 | Int_t vol[5]; // location for a digit | |
633 | Int_t sector = tofdigit->GetSector(); // range [1-18] | |
634 | Int_t plate = tofdigit->GetPlate(); // range [1- 5] | |
635 | Int_t strip = tofdigit->GetStrip(); // range [1-20] | |
636 | Int_t padx = tofdigit->GetPadx(); // range [1-48] | |
637 | Int_t padz = tofdigit->GetPadz(); // range [1- 2] | |
638 | ||
639 | vol[0] = sector; | |
640 | vol[1] = plate; | |
641 | vol[2] = strip; | |
642 | vol[3] = padx; | |
643 | vol[4] = padz; | |
644 | ||
645 | // QA | |
646 | Bool_t isDigitBad = (sector<1 || sector>18 || plate<1 || plate >5 || padz<1 || padz>2 || padx<1 || padx>48); | |
647 | ||
648 | if (isDigitBad) { | |
649 | cout << "<LoadTOFDigits> strange digit found" << endl; | |
650 | rc = 3; | |
651 | return rc; | |
652 | } // if (isDigitBad) | |
653 | ||
654 | // Fill the digit map checking if the location is already used | |
655 | // in this case we take the earliest signal | |
656 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
657 | // start comparison in between the 2 digit | |
658 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
659 | if(tdc < (dig->GetTdc())) fDigitsMap->SetHit(vol,k); | |
660 | // we can add also the check on adc value | |
661 | // by selecting the largest adc value | |
662 | } else { | |
663 | fDigitsMap->SetHit(vol,k); | |
664 | } | |
665 | // to be added protection versus 2-digit on the same pad | |
666 | // we have to have memory also of the second digit | |
667 | ||
668 | } // for (k=0; k<ndig; k++) | |
669 | ||
670 | } // end loop on events | |
671 | ||
672 | gBenchmark->Stop("LoadTOFDigits"); | |
673 | gBenchmark->Show("LoadTOFDigits"); | |
674 | return rc; | |
675 | } | |
676 | ||
677 | //__________________________________________________________________ | |
678 | void AliTOFReconstructionerV2::IsInsideThePad(Float_t x, Float_t y, Float_t z, Int_t *nGeom, Float_t& zPad, Float_t& xPad) | |
679 | { | |
680 | // input: x,y,z - coordinates of a point in the mrf [cm] | |
681 | // output: array nGeom[] | |
682 | // nGeom[0] - the TOF sector number, 1,2,...,18 along azimuthal direction starting from -90 deg. | |
683 | // nGeom[1] - the TOF module number, 1,2,3,4,5=C,B,A,B,C along z-direction | |
684 | // nGeom[2] - the TOF strip number, 1,2,... along z-direction | |
685 | // nGeom[3] - the TOF padz number, 1,2=NPZ across a strip | |
686 | // nGeom[4] - the TOF padx number, 1,2,...,48=NPX along a strip | |
687 | // zPad, xPad - coordinates of the hit in the pad frame | |
688 | // numbering is adopted for the version 3.08 of AliRoot | |
689 | // example: | |
690 | // from Hits: sec,pla,str,padz,padx=4,2,14,2,35 | |
691 | // Vol. n.0: ALIC, copy number 1 | |
692 | // Vol. n.1: B077, copy number 1 | |
693 | // Vol. n.2: B074, copy number 5 | |
694 | // Vol. n.3: BTO2, copy number 1 | |
695 | // Vol. n.4: FTOB, copy number 2 | |
696 | // Vol. n.5: FLTB, copy number 0 | |
697 | // Vol. n.6: FSTR, copy number 14 | |
698 | // Vol. n.7: FSEN, copy number 0 | |
699 | // Vol. n.8: FSEZ, copy number 2 | |
700 | // Vol. n.9: FSEX, copy number 35 | |
701 | // Vol. n.10: FPAD, copy number 0 | |
702 | ||
703 | ||
704 | Float_t xTOF[3]; | |
705 | Int_t sector=0,module=0,strip=0,padz=0,padx=0; | |
706 | Int_t i,numed,nLevel,copyNumber; | |
707 | Gcvolu_t* gcvolu; | |
708 | char name[5]; | |
709 | name[4]=0; | |
710 | ||
711 | for (i=0; i<AliTOFConstants::fgkmaxtoftree; i++) nGeom[i]=0; | |
712 | zPad=100.; | |
713 | xPad=100.; | |
714 | ||
715 | xTOF[0]=x; | |
716 | xTOF[1]=y; | |
717 | xTOF[2]=z; | |
718 | ||
b9d0a01d | 719 | TGeant3 * fG3Geom = (TGeant3*) gMC; |
720 | ||
bf6bf84c | 721 | fG3Geom->Gmedia(xTOF, numed); |
722 | gcvolu=fG3Geom->Gcvolu(); | |
723 | nLevel=gcvolu->nlevel; | |
724 | if(fdbg) { | |
725 | for (Int_t i=0; i<nLevel; i++) { | |
726 | strncpy(name,(char*) (&gcvolu->names[i]),4); | |
727 | cout<<"Vol. n."<<i<<": "<<name<<", copy number "<<gcvolu->number[i]<<endl; | |
728 | } | |
729 | } | |
730 | if(nLevel>=2) { | |
731 | // sector type name: B071(1,2,...,10),B074(1,2,3,4,5-PHOS),B075(1,2,3-RICH) | |
732 | strncpy(name,(char*) (&gcvolu->names[2]),4); | |
733 | // volume copy: 1,2,...,10 for B071, 1,2,3,4,5 for B074, 1,2,3 for B075 | |
734 | copyNumber=gcvolu->number[2]; | |
735 | if(!strcmp(name,"B071")) { | |
736 | if (copyNumber>=6 && copyNumber<=8) { | |
737 | sector=copyNumber+10; | |
738 | } else if (copyNumber>=1 && copyNumber<=5){ | |
739 | sector=copyNumber+7; | |
740 | } else { | |
741 | sector=copyNumber-8; | |
742 | } | |
743 | } else if(!strcmp(name,"B075")) { | |
744 | sector=copyNumber+12; | |
745 | } else if(!strcmp(name,"B074")) { | |
746 | if (copyNumber>=1 && copyNumber<=3){ | |
747 | sector=copyNumber+4; | |
748 | } else { | |
749 | sector=copyNumber-1; | |
750 | } | |
751 | } | |
752 | } | |
753 | if(sector) { | |
754 | nGeom[0]=sector; | |
755 | if(nLevel>=4) { | |
756 | // we'll use the module value in z-direction: | |
757 | // 1 2 3 4 5 | |
758 | // the module order in z-direction: FTOC,FTOB,FTOA,FTOB,FTOC | |
759 | // the module copy: 2 2 0 1 1 | |
760 | // module type name: FTOA, FTOB, FTOC | |
761 | strncpy(name,(char*) (&gcvolu->names[4]),4); | |
762 | // module copy: | |
763 | copyNumber=gcvolu->number[4]; | |
764 | if(!strcmp(name,"FTOC")) { | |
765 | if (copyNumber==2) { | |
766 | module=1; | |
767 | } else { | |
768 | module=5; | |
769 | } | |
770 | } else if(!strcmp(name,"FTOB")) { | |
771 | if (copyNumber==2) { | |
772 | module=2; | |
773 | } else { | |
774 | module=4; | |
775 | } | |
776 | } else if(!strcmp(name,"FTOA")) { | |
777 | module=3; | |
778 | } | |
779 | } | |
780 | } | |
781 | ||
782 | if(module) { | |
783 | nGeom[1]=module; | |
784 | if(nLevel>=6) { | |
785 | // strip type name: FSTR | |
786 | strncpy(name,(char*) (&gcvolu->names[6]),4); | |
787 | // strip copy: | |
788 | copyNumber=gcvolu->number[6]; | |
789 | if(!strcmp(name,"FSTR")) strip=copyNumber; | |
790 | } | |
791 | } | |
792 | ||
793 | if(strip) { | |
794 | nGeom[2]=strip; | |
795 | if(nLevel>=8) { | |
796 | // padz type name: FSEZ | |
797 | strncpy(name,(char*) (&gcvolu->names[8]),4); | |
798 | // padz copy: | |
799 | copyNumber=gcvolu->number[8]; | |
800 | if(!strcmp(name,"FSEZ")) padz=copyNumber; | |
801 | } | |
802 | } | |
803 | if(padz) { | |
804 | nGeom[3]=padz; | |
805 | if(nLevel>=9) { | |
806 | // padx type name: FSEX | |
807 | strncpy(name,(char*) (&gcvolu->names[9]),4); | |
808 | // padx copy: | |
809 | copyNumber=gcvolu->number[9]; | |
810 | if(!strcmp(name,"FSEX")) padx=copyNumber; | |
811 | } | |
812 | } | |
813 | ||
814 | if(padx) { | |
815 | nGeom[4]=padx; | |
816 | zPad=gcvolu->glx[2]; | |
817 | xPad=gcvolu->glx[0]; | |
818 | } | |
819 | ||
820 | } | |
821 | ||
822 | //__________________________________________________________________ | |
cfa58405 | 823 | void AliTOFReconstructionerV2::GetGlobalXYZ(Double_t alpha, Double_t& x, Double_t& y, Double_t& /*z*/) |
bf6bf84c | 824 | { |
825 | // | |
826 | // return the current running coordinates of | |
827 | // the track in the global reference frame | |
828 | // x, y and z have to initialized to the | |
829 | // local frame coordinates by the caller | |
830 | // alpha is the alpha coordinate in the TPC Kalman | |
831 | // reference frame | |
832 | ||
833 | // it take into account differences in between | |
834 | // TPC and TRD local coordinates frames | |
835 | if (alpha < -TMath::Pi()) alpha += 2*TMath::Pi(); | |
836 | else if (alpha >= TMath::Pi()) alpha -= 2*TMath::Pi(); | |
837 | ||
838 | // conversion | |
839 | Double_t tmp=x*TMath::Cos(alpha) - y*TMath::Sin(alpha); | |
840 | y=x*TMath::Sin(alpha) + y*TMath::Cos(alpha); | |
841 | x=tmp; | |
842 | } | |
843 | ||
844 | //__________________________________________________________________ | |
845 | Bool_t AliTOFReconstructionerV2::DigitFinder(TArrayI *secArray, TArrayI *plaArray, TArrayI *strArray, TArrayI *pdzArray, TArrayI *pdxArray, Int_t* assignedVol, Int_t* digitTrackArray, Float_t& tdc) | |
846 | { | |
847 | // | |
848 | // Description | |
849 | // input: arrays with sectors, plates, strips, padz, padx | |
850 | // found during fine-propagation of probe tracks | |
851 | // | |
852 | // output kFALSE if signal is not found | |
853 | // kTRUE if signal is found | |
854 | // in this case the assignedVol array contains the digit volume numbers | |
855 | // and digitTrackArray the track numbers (max 3) contributing to the | |
856 | // digit | |
857 | ||
858 | Bool_t dummy=kFALSE; | |
859 | Int_t nFilledSlot=secArray->GetSize(); | |
860 | ||
861 | // start loop | |
862 | Float_t maxWeight=-1.; | |
863 | Int_t indexOfMaxWeight=-1; | |
864 | for (Int_t i = 0; i < nFilledSlot; i++) { | |
865 | Int_t vol[5]; // location for a digit | |
866 | vol[0] = (*secArray)[i]; | |
867 | vol[1] = (*plaArray)[i]; | |
868 | vol[2] = (*strArray)[i]; | |
869 | vol[3] = (*pdxArray)[i]; | |
870 | vol[4] = (*pdzArray)[i]; | |
871 | ||
872 | // check for digit in the current location | |
873 | if (fDigitsMap->TestHit(vol) != kEmpty) { | |
874 | ||
875 | AliTOFdigit *dig = static_cast<AliTOFdigit*>(fDigitsMap->GetHit(vol)); | |
876 | Float_t adcWeight=dig->GetAdc(); | |
877 | if(adcWeight > maxWeight){ | |
878 | maxWeight=adcWeight; | |
879 | indexOfMaxWeight=i; | |
880 | tdc=dig->GetTdc(); | |
881 | digitTrackArray=dig->GetTracks(); | |
882 | ||
883 | } // if(adcWeight > maxWeight) | |
884 | } // close if (fDigitsMap->TestHit(vol) != kEmpty) | |
885 | ||
886 | } // end loop | |
887 | ||
888 | if(indexOfMaxWeight!=-1){ | |
889 | assignedVol[0]=(*secArray)[indexOfMaxWeight]; | |
890 | assignedVol[1]=(*plaArray)[indexOfMaxWeight]; | |
891 | assignedVol[2]=(*strArray)[indexOfMaxWeight]; | |
892 | assignedVol[3]=(*pdxArray)[indexOfMaxWeight]; | |
893 | assignedVol[4]=(*pdzArray)[indexOfMaxWeight]; | |
894 | dummy=kTRUE; | |
895 | } | |
896 | ||
897 | return dummy; | |
898 | } | |
899 | ||
900 | //__________________________________________________________________ | |
901 | Int_t AliTOFReconstructionerV2::SaveTracks(const Char_t *outname, const Int_t split) | |
902 | { | |
903 | // | |
904 | // save reconstructed tracks into | |
905 | // outname file | |
906 | // | |
907 | TDirectory *savedir=gDirectory; | |
908 | const Char_t *name="Writing Output"; | |
909 | cerr<<'\n'<<name<<"...\n"; | |
910 | gBenchmark->Start(name); | |
911 | ||
912 | TFile *out=TFile::Open(outname,"RECREATE"); | |
913 | if (!out->IsOpen()) { | |
914 | cerr<<"AliTOFReconstructionerV2::SaveTracks(): "; | |
915 | cerr<<"file for TOF tracks is not open !\n"; | |
916 | return 2; | |
917 | } | |
918 | ||
919 | out->cd(); | |
920 | TTree T("T","tree with TOF tracks"); | |
921 | T.Branch("tracks",&fTOFTracks,256000,split); | |
922 | ||
923 | ||
924 | T.Fill(); | |
925 | T.Write(); | |
926 | savedir->cd(); | |
927 | out->Close(); | |
bf6bf84c | 928 | gBenchmark->Stop(name); |
929 | gBenchmark->Show(name); | |
0798b21e | 930 | return 0; |
bf6bf84c | 931 | } |
932 | ||
933 | //__________________________________________________________________ | |
934 | void AliTOFReconstructionerV2::Comparison(Int_t* rtIndex) | |
935 | { | |
936 | // | |
937 | // perform MC comparison | |
938 | // used also for track length | |
939 | // for the time being | |
940 | // Connect the AliRoot file containing Geometry, Kine, Hits, and Digits | |
941 | ||
942 | ||
943 | Int_t nEvent = 0; | |
88cb7938 | 944 | Char_t *datafile = "galice.root"; |
bf6bf84c | 945 | |
88cb7938 | 946 | AliRunLoader *rl = AliRunLoader::Open(datafile); |
947 | if (rl == 0x0) | |
948 | { | |
949 | Error("Exec","Can not open session for file %s",datafile); | |
950 | return; | |
951 | } | |
bf6bf84c | 952 | // Get AliRun object from file or create it if not on file |
88cb7938 | 953 | rl->LoadgAlice(); |
954 | gAlice = rl->GetAliRun(); | |
bf6bf84c | 955 | if (gAlice) |
956 | cout << "AliRun object found on file" << endl; | |
957 | else | |
958 | gAlice = new AliRun("gAlice","Alice test program"); | |
88cb7938 | 959 | |
960 | ||
961 | AliTOF* TOF = (AliTOF *) gAlice->GetDetector ("TOF"); | |
962 | ||
bf6bf84c | 963 | |
964 | ||
965 | // Import the Trees for the event nEvent in the file | |
88cb7938 | 966 | rl->GetEvent(nEvent); |
967 | const Int_t nparticles = rl->GetNumberOfEvents(); | |
bf6bf84c | 968 | if (nparticles <= 0) return; |
969 | ||
88cb7938 | 970 | AliLoader* tofloader = rl->GetLoader("TOFLoader"); |
971 | if (tofloader == 0x0) | |
972 | { | |
973 | Error("AliTOFReconstructioner","Can not get TOF Loader from Run Loader."); | |
974 | delete rl; | |
975 | return; | |
976 | } | |
977 | ||
bf6bf84c | 978 | // Get pointers to Alice detectors and Hits containers |
88cb7938 | 979 | tofloader->LoadHits(); |
980 | Int_t ntracks = (Int_t) tofloader->TreeH()->GetEntries(); | |
981 | TOF->SetTreeAddress(); | |
bf6bf84c | 982 | // Start loop on tracks in the hits containers |
983 | for (Int_t track=0; track < ntracks; track++) { | |
984 | ||
985 | if(TOF) { | |
986 | for(AliTOFhitT0* tofHit = (AliTOFhitT0*)TOF->FirstHit(track); | |
987 | tofHit; | |
988 | tofHit=(AliTOFhitT0*)TOF->NextHit()) { | |
989 | ||
990 | Int_t ipart = tofHit->GetTrack(); | |
991 | if(ipart >= 80000) continue; | |
992 | if(rtIndex[ipart] < 0) continue; | |
993 | ||
994 | TParticle *part = gAlice->Particle(ipart); | |
995 | ||
996 | // get first the pdg code | |
997 | Int_t pdgCode=part->GetPdgCode(); | |
998 | ||
999 | // then track length | |
1000 | Float_t trackLength=tofHit->GetLen(); // [cm] | |
1001 | ||
1002 | // update the tof TClonesArray with TOF tracks | |
1003 | AliTOFTrackV2* oTOFtracks=(AliTOFTrackV2*)fTOFTracks->UncheckedAt(rtIndex[ipart]); | |
1004 | oTOFtracks->UpdateTrack(pdgCode,trackLength); | |
1005 | ||
1006 | } // loop on hits connected to the current track | |
1007 | } // if(TOF) | |
1008 | } // end loop on primary tracks | |
1009 | } | |
0085f44e | 1010 | |
1011 | //__________________________________________________________________ | |
1012 | Bool_t AliTOFReconstructionerV2::operator==(const AliTOFReconstructionerV2 & tofrecv2)const | |
1013 | { | |
1014 | // Equal operator. | |
1015 | // Reconstructioner are equal if their fField, fNDummyTracks, fScaleSigmaFactor and fStep are equal | |
1016 | ||
1017 | if( (fField==tofrecv2.fField)&&(fNDummyTracks==tofrecv2.fNDummyTracks)&&(fScaleSigmaFactor==tofrecv2.fScaleSigmaFactor)&&(fStep==tofrecv2.fStep)) | |
1018 | return kTRUE ; | |
1019 | else | |
1020 | return kFALSE ; | |
1021 | } |