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 "AliESDTrdTrigger.h"
46 #include "AliTRDtrackletWord.h"
47 #include "AliTRDtrackletMCM.h"
48 #include "AliTRDonlineTrackMatching.h"
50 #define SETFLG(n,f) ((n) |= f)
51 #define CLRFLG(n,f) ((n) &= ~f)
53 ClassImp(AliTRDReconstructor)
55 AliESDTrdTrigger AliTRDReconstructor::fgTriggerFlags;
56 AliTRDonlineTrackMatching AliTRDReconstructor::fgOnlineTrackMatcher;
57 TClonesArray *AliTRDReconstructor::fgClusters = NULL;
58 TClonesArray *AliTRDReconstructor::fgTracklets = NULL;
59 TClonesArray *AliTRDReconstructor::fgTracks = NULL;
60 Char_t const * AliTRDReconstructor::fgSteerNames[kNsteer] = {
63 ,"Write Online Tracklets "
64 ,"Stand Alone Tracking "
66 ,"Process Online Trklts "
68 ,"Cl. Radial Correction "
70 Char_t const * AliTRDReconstructor::fgSteerFlags[kNsteer] = {
71 "dc"// digits conversion [false]
72 ,"cw"// write clusters [true]
73 ,"tw"// write online tracklets [false]
74 ,"sa"// track seeding (stand alone tracking) [true]
75 ,"hlt"// HLT reconstruction [false]
76 ,"tp"// also use online tracklets for reconstruction [false]
77 ,"deb"// Write debug stream [false]
78 ,"cc" // Cluster radial correction during reconstruction [false]
80 Char_t const * AliTRDReconstructor::fgTaskNames[AliTRDrecoParam::kTRDreconstructionTasks] = {
85 Char_t const * AliTRDReconstructor::fgTaskFlags[AliTRDrecoParam::kTRDreconstructionTasks] = {
90 Int_t AliTRDReconstructor::fgNTimeBins = -1;
91 const Float_t AliTRDReconstructor::fgkMinClustersInTrack = 0.5; //
92 const Float_t AliTRDReconstructor::fgkLabelFraction = 0.8; //
93 const Double_t AliTRDReconstructor::fgkMaxChi2 = 12.0; //
94 const Double_t AliTRDReconstructor::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle
95 const Double_t AliTRDReconstructor::fgkMaxStep = 2.0; // Maximal step size in propagation
96 const Double_t AliTRDReconstructor::fgkEpsilon = 1.e-5; // Precision of radial coordinate
98 //_____________________________________________________________________________
99 AliTRDReconstructor::AliTRDReconstructor()
104 // setting default "ON" steering parameters
105 // owner of debug streamers
106 SETFLG(fSteerParam, kOwner);
107 // write clusters [cw]
108 SETFLG(fSteerParam, kWriteClusters);
109 // track seeding (stand alone tracking) [sa]
110 //SETFLG(fSteerParam, kSeeding);
111 // Cluster radial correction during reconstruction [cc]
112 //SETFLG(fSteerParam, kClRadialCorr);
113 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * AliTRDrecoParam::kTRDreconstructionTasks);
116 //_____________________________________________________________________________
117 AliTRDReconstructor::~AliTRDReconstructor()
128 fgClusters->Delete();
133 fgTracklets->Delete();
142 if(fSteerParam&kOwner){
143 for(Int_t itask = 0; itask < AliTRDrecoParam::kTRDreconstructionTasks; itask++)
144 if(fDebugStream[itask]) delete fDebugStream[itask];
149 //_____________________________________________________________________________
150 void AliTRDReconstructor::Init(){
154 SetOption(GetOption());
155 Options(fSteerParam);
158 fClusterizer = new AliTRDclusterizer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
159 fClusterizer->SetReconstructor(this);
160 AliInfo(Form("Build TRD clusterizer[%p]", (void*)fClusterizer));
163 // Make Debug Streams when Debug Streaming
164 if(IsDebugStreaming()){
165 for(Int_t task = 0; task < AliTRDrecoParam::kTRDreconstructionTasks; task++){
166 TDirectory *savedir = gDirectory;
167 fDebugStream[task] = new TTreeSRedirector(Form("TRD.Debug%s.root", fgTaskNames[task]));
169 SETFLG(fSteerParam, kOwner);
174 //_____________________________________________________________________________
175 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
176 , TTree *digitsTree) const
179 // Convert raw data digits into digit objects in a root tree
182 AliDebug(1, "Convert raw data digits into digit objects [RawReader -> Digit TTree]");
183 AliDebug(2, Form("clusters[%p] tracklets[%p] tracks[%p]", (void*)fgClusters, (void*)fgTracklets, (void*)fgTracks));
186 rawReader->Select("TRD");
189 AliTRDrawData rawData;
191 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
192 manager->MakeBranch(digitsTree);
193 manager->WriteDigits();
196 for (Int_t iSector = 0; iSector < 18; iSector++) fgTriggerFlags.SetFlags(iSector, rawData.GetTriggerFlags(iSector));
199 //_____________________________________________________________________________
200 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
201 , TTree *clusterTree) const
204 // Reconstruct clusters
207 AliDebug(1, "Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
208 AliDebug(2, Form("clusters[%p] tracklets[%p] tracks[%p]", (void*)fgClusters, (void*)fgTracklets, (void*)fgTracks));
210 AliFatal("Clusterizer not available!");
214 rawReader->Select("TRD");
216 fClusterizer->OpenOutput(clusterTree);
217 fClusterizer->SetUseLabels(kFALSE);
218 fClusterizer->SetStoreRawSignals(kTRUE);
219 fClusterizer->ResetRecPoints();
220 fClusterizer->Raw2ClustersChamber(rawReader);
221 fgNTimeBins = fClusterizer->GetNTimeBins();
222 for (Int_t iSector = 0; iSector < 18; iSector++) fgTriggerFlags.SetFlags(iSector, fClusterizer->GetTriggerFlags(iSector));
225 //_____________________________________________________________________________
226 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
227 , TTree *clusterTree) const
230 // Reconstruct clusters
233 AliDebug(1, "Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
234 AliDebug(2, Form("Start :: clusters[%p] tracklets[%p] tracks[%p]", (void*)fgClusters, (void*)fgTracklets, (void*)fgTracks));
236 AliFatal("Clusterizer not available!");
241 AliTRDclusterizer clusterizer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
242 clusterizer.SetReconstructor(this);
243 clusterizer.SetUseLabels(kTRUE);
244 clusterizer.SetStoreRawSignals(kTRUE);
245 clusterizer.OpenOutput(clusterTree);
246 clusterizer.ReadDigits(digitsTree);
247 clusterizer.ReadTracklets();
248 clusterizer.ReadTracks();
249 clusterizer.MakeClusters();
250 fgNTimeBins = clusterizer.GetNTimeBins();
253 //_____________________________________________________________________________
254 AliTracker *AliTRDReconstructor::CreateTracker() const
257 // Create a TRD tracker
260 //return new AliTRDtracker(NULL);
261 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
262 tracker->SetReconstructor(this);
263 AliInfo(Form("Build TRD tracker[%p]", (void*)tracker));
268 //_____________________________________________________________________________
269 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
270 , TTree* /*clusterTree*/
271 , AliESDEvent* esd) const
277 // ----- filling tracklets -----
278 AliDebug(1, Form("Loading onl.tracklets(%i) to ESD", fgTracklets ? fgTracklets->GetEntriesFast() : 0));
279 Int_t trackletIndex[1080] = { 0 };
281 AliTRDrawStream::SortTracklets(fgTracklets, trklList, trackletIndex);
282 TIter trackletIter(&trklList);
283 while (AliTRDtrackletBase* tracklet = (AliTRDtrackletBase*) trackletIter()) {
284 Int_t label = -2; // mark raw tracklets with label -2
285 if (AliTRDtrackletMCM *trklMCM = dynamic_cast<AliTRDtrackletMCM*> (tracklet)) label = trklMCM->GetLabel();
286 esd->AddTrdTracklet(tracklet->GetTrackletWord(), tracklet->GetHCId(), label);
289 // ----- filling GTU tracks -----
290 AliDebug(1, Form("Loading gtu.tracks(%i) to ESD", fgTracks ? fgTracks->GetEntriesFast() : 0));
292 for (Int_t iTrack = 0; iTrack < fgTracks->GetEntriesFast(); iTrack++) {
293 AliESDTrdTrack *trdTrack = (AliESDTrdTrack*) ((*fgTracks)[iTrack]);
295 UInt_t stack = trdTrack->GetStack();
298 AliTRDrawStream::AssignTracklets(trdTrack, trackletIndex, refIndex);
300 for (Int_t iLayer = 0; iLayer < 6; ++iLayer) {
301 Int_t det = trdTrack->GetSector()*30 + stack*6 + iLayer;
302 AliESDTrdTracklet *trkl = refIndex[iLayer] > -1 ? esd->GetTrdTracklet(refIndex[iLayer]) : 0x0;
304 AliDebug(5, Form("adding tracklet with index %i: 0x%08x",
305 refIndex[iLayer], trkl->GetTrackletWord()));
306 if (trkl->GetDetector() != det)
307 AliError(Form("inconsistent assignment of tracklet 0x%08x in det %i to track in %i",
308 trkl->GetTrackletWord(), trkl->GetDetector(), det));
309 trdTrack->AddTrackletReference(trkl, iLayer);
312 // only add the track when it's complete (including tracklet references)
313 esd->AddTrdTrack(trdTrack);
316 esd->SetTrdTrigger(&fgTriggerFlags);
318 // ----- matching GTU tracks to global tracks -----
319 AliDebug(1, Form("TRD track matching with %i ESD, %i TRD tracks",
320 esd->GetNumberOfTracks(), esd->GetNumberOfTrdTracks()));
321 fgOnlineTrackMatcher.ProcessEvent(esd);
324 //_____________________________________________________________________________
325 void AliTRDReconstructor::SetOption(Option_t *opt)
328 // Read option string into the steer param.
330 // The following string options are available during reconstruction.
331 // In square brackets the default values are given.
332 // "dc" : digits conversion [false]
333 // "cw" : write clusters [true]
334 // "tw" : write online tracklets [false]
335 // "sa" : track seeding (stand alone tracking) [true]
336 // "hlt" : HLT reconstruction [false]
337 // "tp" : also use online tracklets for reconstruction [false]
338 // "deb" : Write debug stream [false]
339 // "cc" : Cluster radial correction during reconstruction [false]
341 // To check the actual options used during reconstruction include the following line in your rec.C script
342 // AliLog::SetClassDebugLevel("AliTRDReconstructor", 1);
344 AliReconstructor::SetOption(opt);
347 TObjArray *opar = s.Tokenize(",");
348 for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
349 Bool_t processed = kFALSE;
350 TString sopt(((TObjString*)(*opar)[ipar])->String());
351 for(Int_t iopt=0; iopt<kNsteer; iopt++){
352 if(!sopt.Contains(fgSteerFlags[iopt])) continue;
353 SETFLG(fSteerParam, BIT(iopt));
354 if(sopt.Contains("!")) CLRFLG(fSteerParam, BIT(iopt));
358 if(processed) continue;
360 AliWarning(Form("Unknown option flag %s.", sopt.Data()));
366 //_____________________________________________________________________________
367 void AliTRDReconstructor::Options(UInt_t steer)
373 for(Int_t iopt=0; iopt<kNsteer; iopt++){
374 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));
379 //_____________________________________________________________________________
380 TClonesArray* AliTRDReconstructor::GetClusters()
382 // Build/ Retrieve cluster array
384 fgClusters = new TClonesArray("AliTRDcluster", Int_t(GetRecoParam()->GetNClusters()));
385 fgClusters->SetOwner();
386 AliInfoGeneral("AliTRDReconstructor", Form("Allocate cluster array @ %p", (void*)fgClusters));
391 //_____________________________________________________________________________
392 TClonesArray* AliTRDReconstructor::GetTracklets(const char *trkltype)
394 // Build/ Retrieve online tracklets array
396 if (trkltype && strlen(trkltype) > 0) {
397 if(fgTracklets && (TClass::GetClass(trkltype) != fgTracklets->GetClass())){
398 fgTracklets->Delete();
402 fgTracklets = new TClonesArray(trkltype, 200);
403 fgTracklets->SetOwner(kTRUE);
404 AliInfoGeneral("AliTRDReconstructor", Form("Allocate online tracklets[%s] array @ %p", trkltype, (void*)fgTracklets));
410 //_____________________________________________________________________________
411 TClonesArray* AliTRDReconstructor::GetTracks()
413 // Build/ Retrieve cluster array
415 fgTracks = new TClonesArray("AliESDTrdTrack", 100);
416 fgTracks->SetOwner();
417 AliInfoGeneral("AliTRDReconstructor", Form("Allocate online tracks array @ %p", (void*)fgTracks));
422 //_____________________________________________________________________________
423 void AliTRDReconstructor::ResetContainers() const
425 // prepare data containers for a new event
428 AliDebug(1, Form("Removing %5d clusters @ %p", fgClusters->GetEntriesFast(), (void*)fgClusters));
432 AliDebug(1, Form("Removing %3d online tracklets @ %p", fgTracklets->GetEntriesFast(), (void*)fgTracklets));
433 fgTracklets->Clear();
436 AliDebug(1, Form("Removing %3d online tracks @ %p", fgTracks->GetEntriesFast(), (void*)fgTracks));