1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // Class for TRD reconstruction //
22 // For the special options which can be used during reconstruction and their //
23 // default values pls. see function SetOption(). //
25 ///////////////////////////////////////////////////////////////////////////////
27 #include <TObjString.h>
28 #include <TObjArray.h>
29 #include <TTreeStream.h>
30 #include <TDirectory.h>
33 #include "AliRawReader.h"
36 #include "AliTRDReconstructor.h"
37 #include "AliTRDclusterizer.h"
38 #include "AliTRDrawData.h"
39 #include "AliTRDrawStream.h"
40 #include "AliTRDdigitsManager.h"
41 #include "AliTRDtrackerV1.h"
42 #include "AliESDEvent.h"
43 #include "AliESDTrdTrack.h"
44 #include "AliESDTrdTracklet.h"
45 #include "AliTRDtrackletWord.h"
47 #define SETFLG(n,f) ((n) |= f)
48 #define CLRFLG(n,f) ((n) &= ~f)
50 ClassImp(AliTRDReconstructor)
52 TClonesArray *AliTRDReconstructor::fgClusters = NULL;
53 TClonesArray *AliTRDReconstructor::fgTracklets = NULL;
54 TClonesArray *AliTRDReconstructor::fgTracks = NULL;
55 Char_t const * AliTRDReconstructor::fgSteerNames[kNsteer] = {
58 ,"Write Online Tracklets "
59 ,"Stand Alone Tracking "
61 ,"Process Online Trklts "
63 ,"Cl. Radial Correction "
65 Char_t const * AliTRDReconstructor::fgSteerFlags[kNsteer] = {
66 "dc"// digits conversion [false]
67 ,"cw"// write clusters [true]
68 ,"tw"// write online tracklets [false]
69 ,"sa"// track seeding (stand alone tracking) [true]
70 ,"hlt"// HLT reconstruction [false]
71 ,"tp"// also use online tracklets for reconstruction [false]
72 ,"deb"// Write debug stream [false]
73 ,"cc" // Cluster radial correction during reconstruction [false]
75 Char_t const * AliTRDReconstructor::fgTaskNames[AliTRDrecoParam::kTRDreconstructionTasks] = {
80 Char_t const * AliTRDReconstructor::fgTaskFlags[AliTRDrecoParam::kTRDreconstructionTasks] = {
85 Int_t AliTRDReconstructor::fgNTimeBins = -1;
86 const Float_t AliTRDReconstructor::fgkMinClustersInTrack = 0.5; //
87 const Float_t AliTRDReconstructor::fgkLabelFraction = 0.8; //
88 const Double_t AliTRDReconstructor::fgkMaxChi2 = 12.0; //
89 const Double_t AliTRDReconstructor::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle
90 const Double_t AliTRDReconstructor::fgkMaxStep = 2.0; // Maximal step size in propagation
91 const Double_t AliTRDReconstructor::fgkEpsilon = 1.e-5; // Precision of radial coordinate
93 //_____________________________________________________________________________
94 AliTRDReconstructor::AliTRDReconstructor()
99 // setting default "ON" steering parameters
100 // owner of debug streamers
101 SETFLG(fSteerParam, kOwner);
102 // write clusters [cw]
103 SETFLG(fSteerParam, kWriteClusters);
104 // track seeding (stand alone tracking) [sa]
105 //SETFLG(fSteerParam, kSeeding);
106 // Cluster radial correction during reconstruction [cc]
107 //SETFLG(fSteerParam, kClRadialCorr);
108 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * AliTRDrecoParam::kTRDreconstructionTasks);
111 //_____________________________________________________________________________
112 AliTRDReconstructor::~AliTRDReconstructor()
119 fgClusters->Delete();
124 fgTracklets->Delete();
133 if(fSteerParam&kOwner){
134 for(Int_t itask = 0; itask < AliTRDrecoParam::kTRDreconstructionTasks; itask++)
135 if(fDebugStream[itask]) delete fDebugStream[itask];
144 //_____________________________________________________________________________
145 void AliTRDReconstructor::Init(){
149 SetOption(GetOption());
150 Options(fSteerParam);
153 fClusterizer = new AliTRDclusterizer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
154 fClusterizer->SetReconstructor(this);
157 // Make Debug Streams when Debug Streaming
158 if(IsDebugStreaming()){
159 for(Int_t task = 0; task < AliTRDrecoParam::kTRDreconstructionTasks; task++){
160 TDirectory *savedir = gDirectory;
161 fDebugStream[task] = new TTreeSRedirector(Form("TRD.Debug%s.root", fgTaskNames[task]));
163 SETFLG(fSteerParam, kOwner);
168 //_____________________________________________________________________________
169 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
170 , TTree *digitsTree) const
173 // Convert raw data digits into digit objects in a root tree
176 //AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
178 AliTRDrawData rawData;
180 rawReader->Select("TRD");
181 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
182 manager->MakeBranch(digitsTree);
183 manager->WriteDigits();
186 // take over ownership of online tracklets
187 fgTracklets = rawData.TrackletsArray();
188 rawData.SetTrackletsOwner(0x0);
190 // take over GTU tracks
191 fgTracks = rawData.TracksArray();
192 rawData.SetTracksOwner(0x0);
195 //_____________________________________________________________________________
196 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
197 , TTree *clusterTree) const
200 // Reconstruct clusters
203 //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
207 rawReader->Select("TRD");
210 AliFatal("Clusterizer not available!");
214 fClusterizer->ResetRecPoints();
216 fClusterizer->OpenOutput(clusterTree);
217 fClusterizer->SetUseLabels(kFALSE);
218 fClusterizer->Raw2ClustersChamber(rawReader);
220 fgNTimeBins = fClusterizer->GetNTimeBins();
222 // take over ownership of online tracklets
223 fgTracklets = fClusterizer->TrackletsArray();
224 fClusterizer->SetTrackletsOwner(kFALSE);
226 // take over GTU tracks
227 fgTracks = fClusterizer->TracksArray();
228 fClusterizer->SetTracksOwner(kFALSE);
230 if(IsWritingClusters()) return;
232 // take over ownership of clusters
233 fgClusters = fClusterizer->RecPoints();
234 fClusterizer->SetClustersOwner(kFALSE);
237 //_____________________________________________________________________________
238 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
239 , TTree *clusterTree) const
242 // Reconstruct clusters
245 //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
247 AliTRDclusterizer clusterer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
248 clusterer.SetReconstructor(this);
249 clusterer.OpenOutput(clusterTree);
250 clusterer.ReadDigits(digitsTree);
251 clusterer.MakeClusters();
253 // read tracklets and tracks if not done during reading of raw data
255 clusterer.ReadTracklets();
256 fgTracklets = clusterer.TrackletsArray();
257 clusterer.SetTrackletsOwner(kFALSE);
260 clusterer.ReadTracks();
261 fgTracks = clusterer.TracksArray();
262 clusterer.SetTracksOwner(kFALSE);
265 fgNTimeBins = clusterer.GetNTimeBins();
267 if(IsWritingClusters()) return;
269 // take over ownership of clusters
270 fgClusters = clusterer.RecPoints();
271 clusterer.SetClustersOwner(kFALSE);
274 //_____________________________________________________________________________
275 AliTracker *AliTRDReconstructor::CreateTracker() const
278 // Create a TRD tracker
281 //return new AliTRDtracker(NULL);
282 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
283 tracker->SetReconstructor(this);
288 //_____________________________________________________________________________
289 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
290 , TTree* /*clusterTree*/
291 , AliESDEvent* esd) const
297 // ----- filling tracklets -----
298 Int_t trackletIndex[1080] = { 0 };
299 AliDebug(1, Form("Filling tracklets from %p (%i)",
300 fgTracklets, fgTracklets ? fgTracklets->GetEntriesFast() : 0));
302 Int_t nTracklets = fgTracklets->GetEntriesFast();
305 for (Int_t iTracklet = 0; iTracklet < nTracklets; iTracklet++) {
306 AliTRDtrackletBase *trkl = (AliTRDtrackletBase*) ((*fgTracklets)[iTracklet]);
307 Int_t hc = trkl->GetHCId();
308 // hc += trkl->GetY() > 0 ? 1 : 0;
309 if ((hc < 0) || (hc >= 1080)) {
310 AliError(Form("HC for tracklet: 0x%08x out of range: %i", trkl->GetTrackletWord(), trkl->GetHCId()));
313 AliDebug(5, Form("hc: %4i : 0x%08x z: %2i", hc, trkl->GetTrackletWord(), trkl->GetZbin()));
315 AliDebug(2, Form("set tracklet index for HC %i to %i", hc, iTracklet));
316 trackletIndex[hc] = iTracklet + 1;
321 for (Int_t iDet = 0; iDet < 540; iDet++) {
322 Int_t trklIndexA = trackletIndex[2*iDet + 0] - 1;
323 Int_t trklIndexB = trackletIndex[2*iDet + 1] - 1;
324 Int_t trklIndex = esd->GetNumberOfTrdTracklets();
325 AliTRDtrackletBase *trklA = trklIndexA > -1 ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexA]) : 0x0;
326 AliTRDtrackletBase *trklB = trklIndexB > -1 ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexB]) : 0x0;
327 while (trklA != 0x0 || trklB != 0x0) {
328 AliDebug(5, Form("det %i - A: %i/%i -> %p, B: %i/%i -> %p",
329 iDet, trklIndexA, nTracklets, trklA, trklIndexB, nTracklets, trklB));
331 AliESDTrdTracklet esdTracklet(trklB->GetTrackletWord(), trklB->GetHCId());
332 esd->AddTrdTracklet(&esdTracklet);
334 trklB = trklIndexB < nTracklets ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexB]) : 0x0;
335 if (trklB && trklB->GetHCId() != 2*iDet + 1)
338 else if (trklB == 0x0) {
339 AliESDTrdTracklet esdTracklet(trklA->GetTrackletWord(), trklA->GetHCId());
340 esd->AddTrdTracklet(&esdTracklet);
342 trklA = trklIndexA < nTracklets ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexA]) : 0x0;
343 if (trklA && trklA->GetHCId() != 2*iDet)
347 if ((trklA->GetZbin() < trklB->GetZbin()) ||
348 ((trklA->GetZbin() == trklB->GetZbin()) && (trklA->GetYbin() < trklB->GetYbin()))) {
349 AliESDTrdTracklet esdTracklet(trklA->GetTrackletWord(), trklA->GetHCId());
350 esd->AddTrdTracklet(&esdTracklet);
352 trklA = trklIndexA < nTracklets ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexA]) : 0x0;
353 if (trklA && trklA->GetHCId() != 2*iDet)
357 AliESDTrdTracklet esdTracklet(trklB->GetTrackletWord(), trklB->GetHCId());
358 esd->AddTrdTracklet(&esdTracklet);
360 trklB = trklIndexB < nTracklets ? (AliTRDtrackletBase*) ((*fgTracklets)[trklIndexB]) : 0x0;
361 if (trklB && trklB->GetHCId() != 2*iDet + 1)
366 // updating tracklet indices as in ESD
367 if (esd->GetNumberOfTrdTracklets() != trklIndex) {
368 trackletIndex[2*iDet + 0] = trackletIndex[2*iDet + 1] = trklIndex;
371 trackletIndex[2*iDet + 0] = trackletIndex[2*iDet + 1] = -1;
375 // ----- filling GTU tracks -----
376 AliDebug(1, Form("Now filling ESD with GTU tracks from %p (%i)",
377 fgTracks, fgTracks ? fgTracks->GetEntriesFast() : 0));
379 for (Int_t iTrack = 0; iTrack < fgTracks->GetEntriesFast(); iTrack++) {
380 AliESDTrdTrack *trdTrack = (AliESDTrdTrack*) ((*fgTracks)[iTrack]);
382 UInt_t mask = trdTrack->GetLayerMask();
383 UInt_t stack = trdTrack->GetStack();
385 for (Int_t iLayer = 0; iLayer < 6; iLayer++) {
386 if (mask & (1 << iLayer)) {
388 Int_t det = trdTrack->GetSector()*30 + stack*6 + iLayer;
389 Int_t idx = trdTrack->GetTrackletIndex(iLayer);
391 if ((det < 0) || (det > 539)) {
392 AliError(Form("Invalid detector no. from track: %i", 2*det));
395 if (trackletIndex[2*det] >= 0) {
396 if ((trackletIndex[2*det] + idx > -1) &&
397 (trackletIndex[2*det] + idx < esd->GetNumberOfTrdTracklets())) {
398 AliESDTrdTracklet *trkl = esd->GetTrdTracklet(trackletIndex[2*det] + idx);
400 AliDebug(5, Form("adding tracklet: 0x%08x", trkl->GetTrackletWord()));
401 trdTrack->AddTrackletReference(trkl, iLayer);
407 // only add the track when it's complete (including tracklet references)
408 esd->AddTrdTrack(trdTrack);
412 // clearing variables for next event
417 //_____________________________________________________________________________
418 void AliTRDReconstructor::SetOption(Option_t *opt)
421 // Read option string into the steer param.
423 // The following string options are available during reconstruction.
424 // In square brackets the default values are given.
425 // "dc" : digits conversion [false]
426 // "cw" : write clusters [true]
427 // "tw" : write online tracklets [false]
428 // "sa" : track seeding (stand alone tracking) [true]
429 // "hlt" : HLT reconstruction [false]
430 // "tp" : also use online tracklets for reconstruction [false]
431 // "deb" : Write debug stream [false]
432 // "cc" : Cluster radial correction during reconstruction [false]
434 // To check the actual options used during reconstruction include the following line in your rec.C script
435 // AliLog::SetClassDebugLevel("AliTRDReconstructor", 1);
437 AliReconstructor::SetOption(opt);
440 TObjArray *opar = s.Tokenize(",");
441 for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
442 Bool_t processed = kFALSE;
443 TString sopt(((TObjString*)(*opar)[ipar])->String());
444 for(Int_t iopt=0; iopt<kNsteer; iopt++){
445 if(!sopt.Contains(fgSteerFlags[iopt])) continue;
446 SETFLG(fSteerParam, BIT(iopt));
447 if(sopt.Contains("!")) CLRFLG(fSteerParam, BIT(iopt));
451 if(processed) continue;
453 AliWarning(Form("Unknown option flag %s.", sopt.Data()));
457 //_____________________________________________________________________________
458 void AliTRDReconstructor::Options(UInt_t steer)
464 for(Int_t iopt=0; iopt<kNsteer; iopt++){
465 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));