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 ///////////////////////////////////////////////////////////////////////////////
25 #include <TObjString.h>
26 #include <TObjArray.h>
27 #include <TClonesArray.h>
29 #include "AliRunLoader.h"
30 #include "AliRawReader.h"
32 #include "AliESDTrdTrack.h"
33 #include "AliESDEvent.h"
35 #include "AliTRDReconstructor.h"
36 #include "AliTRDclusterizer.h"
37 #include "AliTRDtracker.h"
38 #include "AliTRDpidESD.h"
39 #include "AliTRDrawData.h"
40 #include "AliTRDdigitsManager.h"
41 #include "AliTRDtrackerV1.h"
42 #include "AliTRDrecoParam.h"
44 #include "TTreeStream.h"
46 #define SETFLG(n,f) ((n) |= f)
47 #define CLRFLG(n,f) ((n) &= ~f)
49 ClassImp(AliTRDReconstructor)
51 TClonesArray *AliTRDReconstructor::fgClusters = 0x0;
52 TClonesArray *AliTRDReconstructor::fgTracklets = 0x0;
53 Char_t* AliTRDReconstructor::fgSteerNames[kNsteer] = {
60 ,"8 dEdx slices in ESD "
62 ,"Write Online Tracklets "
64 ,"Stand Alone Tracking "
68 ,"Cosmic Reconstruction "
69 ,"Process Online Tracklets"
71 Char_t* AliTRDReconstructor::fgSteerFlags[kNsteer] = {
72 "dc"// digits conversion [false]
73 ,"tc"// apply tail cancellation [true]
74 ,"lut"// look-up-table for cluster shape in the r-phi direction
75 ,"gs"// gauss cluster shape in the r-phi direction
76 ,"sh"// cluster sharing between tracks
77 ,"nn"// PID method in reconstruction (NN) [true]
78 ,"8s"// 8 dEdx slices in ESD [true]
79 ,"cw"// write clusters [true]
80 ,"tw"// write online tracklets [false]
81 ,"ar"// drift gas [false] - do not update the number of exponentials in the TC !
82 ,"sa"// track seeding (stand alone tracking) [true]
83 ,"vc"// vertex constrain on stand alone track finder [false]
84 ,"ti"// improve tracklets in stand alone track finder [true]
85 ,"hlt"// HLT reconstruction [false]
86 ,"cos"// Cosmic Reconstruction [false]
87 ,"tp"// also use online tracklets for reconstruction [false]
89 Char_t* AliTRDReconstructor::fgTaskNames[kNtasks] = {
95 Char_t* AliTRDReconstructor::fgTaskFlags[kNtasks] = {
102 //_____________________________________________________________________________
103 AliTRDReconstructor::AliTRDReconstructor()
107 // setting default "ON" steering parameters
108 // owner of debug streamers
109 SETFLG(fSteerParam, kOwner);
110 // write clusters [cw]
111 SETFLG(fSteerParam, kWriteClusters);
112 // track seeding (stand alone tracking) [sa]
113 SETFLG(fSteerParam, kSeeding);
114 // PID method in reconstruction (NN) [nn]
115 SETFLG(fSteerParam, kSteerPID);
116 // number of dEdx slices in the ESD track [8s]
117 SETFLG(fSteerParam, kEightSlices);
118 // vertex constrain for stand alone track finder
119 SETFLG(fSteerParam, kVertexConstrained);
120 // improve tracklets for stand alone track finder
121 SETFLG(fSteerParam, kImproveTracklet);
122 // use look up table for cluster r-phi position
123 SETFLG(fSteerParam, kLUT);
124 // use tail cancellation
125 SETFLG(fSteerParam, kTC);
127 memset(fStreamLevel, 0, kNtasks*sizeof(UChar_t));
128 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * kNtasks);
129 // Xe tail cancellation parameters
130 fTCParams[0] = 1.156; // r1
131 fTCParams[1] = 0.130; // r2
132 fTCParams[2] = 0.114; // c1
133 fTCParams[3] = 0.624; // c2
134 // Ar tail cancellation parameters
135 fTCParams[4] = 6.; // r1
136 fTCParams[5] = 0.62; // r2
137 fTCParams[6] = 0.0087;// c1
138 fTCParams[7] = 0.07; // c2
141 //_____________________________________________________________________________
142 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
144 ,fSteerParam(r.fSteerParam)
146 memcpy(fStreamLevel, r.fStreamLevel, kNtasks*sizeof(UChar_t));
147 memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
148 memcpy(fDebugStream, r.fDebugStream, sizeof(TTreeSRedirector *) *kNtasks);
149 // ownership of debug streamers is not taken
150 CLRFLG(fSteerParam, kOwner);
153 //_____________________________________________________________________________
154 AliTRDReconstructor::~AliTRDReconstructor()
157 fgClusters->Delete(); delete fgClusters;
160 fgTracklets->Delete(); delete fgTracklets;
162 if(fSteerParam&kOwner){
163 for(Int_t itask = 0; itask < kNtasks; itask++)
164 if(fDebugStream[itask]) delete fDebugStream[itask];
169 //_____________________________________________________________________________
170 void AliTRDReconstructor::Init(){
174 SetOption(GetOption());
175 Options(fSteerParam, fStreamLevel);
178 //_____________________________________________________________________________
179 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
180 , TTree *digitsTree) const
183 // Convert raw data digits into digit objects in a root tree
186 //AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
188 AliTRDrawData rawData;
190 rawReader->Select("TRD");
191 rawData.OpenOutput();
192 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
193 manager->MakeBranch(digitsTree);
194 manager->WriteDigits();
199 //_____________________________________________________________________________
200 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
201 , TTree *clusterTree) const
204 // Reconstruct clusters
207 //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
211 rawReader->Select("TRD");
213 // New (fast) cluster finder
214 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
215 clusterer.SetReconstructor(this);
216 clusterer.OpenOutput(clusterTree);
217 clusterer.OpenTrackletOutput();
218 clusterer.SetUseLabels(kFALSE);
219 clusterer.Raw2ClustersChamber(rawReader);
221 if(IsWritingClusters()) return;
223 // take over ownership of clusters
224 fgClusters = clusterer.RecPoints();
225 clusterer.SetClustersOwner(kFALSE);
227 // take over ownership of online tracklets
228 fgTracklets = clusterer.TrackletsArray();
229 clusterer.SetTrackletsOwner(kFALSE);
232 //_____________________________________________________________________________
233 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
234 , TTree *clusterTree) const
237 // Reconstruct clusters
240 //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
242 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
243 clusterer.SetReconstructor(this);
244 clusterer.OpenOutput(clusterTree);
245 clusterer.ReadDigits(digitsTree);
246 clusterer.MakeClusters();
248 if(IsWritingClusters()) return;
250 // take over ownership of clusters
251 fgClusters = clusterer.RecPoints();
252 clusterer.SetClustersOwner(kFALSE);
254 // take over ownership of online tracklets
255 fgTracklets = clusterer.TrackletsArray();
256 clusterer.SetTrackletsOwner(kFALSE);
259 //_____________________________________________________________________________
260 AliTracker *AliTRDReconstructor::CreateTracker() const
263 // Create a TRD tracker
266 //return new AliTRDtracker(NULL);
267 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
268 tracker->SetReconstructor(this);
273 //_____________________________________________________________________________
274 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
275 , TTree* /*clusterTree*/
276 , AliESDEvent* /*esd*/) const
285 //_____________________________________________________________________________
286 void AliTRDReconstructor::SetOption(Option_t *opt)
288 // Read option string into the steer param.
291 AliReconstructor::SetOption(opt);
294 TObjArray *opar = s.Tokenize(",");
295 for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
296 Bool_t PROCESSED = kFALSE;
297 TString sopt(((TObjString*)(*opar)[ipar])->String());
298 for(Int_t iopt=0; iopt<kNsteer; iopt++){
299 if(!sopt.Contains(fgSteerFlags[iopt])) continue;
300 SETFLG(fSteerParam, BIT(iopt));
301 if(sopt.Contains("!")) CLRFLG(fSteerParam, BIT(iopt));
306 if(sopt.Contains("gs") && !sopt.Contains("!")){
307 CLRFLG(fSteerParam, kLUT); PROCESSED = kTRUE;
310 if(PROCESSED) continue;
312 if(sopt.Contains("sl")){
313 TObjArray *stl = sopt.Tokenize("_");
314 if(stl->GetEntriesFast() < 3) continue;
315 TString taskstr(((TObjString*)(*stl)[1])->String());
316 TString levelstring(((TObjString*)(*stl)[2])->String());
317 Int_t level = levelstring.Atoi();
319 // Set the stream Level
321 for(Int_t it=0; it<kNtasks; it++){
322 if(taskstr.CompareTo(fgTaskFlags[it]) != 0) continue;
323 SetStreamLevel(level, ETRDReconstructorTask(it));
327 if(PROCESSED) continue;
329 AliWarning(Form("Unknown option flag %s.", sopt.Data()));
333 //_____________________________________________________________________________
334 void AliTRDReconstructor::SetStreamLevel(Int_t level, ETRDReconstructorTask task){
336 // Set the Stream Level for one of the tasks Clusterizer, Tracker or PID
338 const Int_t minLevel[4] = {1, 1, 2, 1}; // the minimum debug level upon which a debug stream is created for different tasks
339 //AliInfo(Form("Setting Stream Level for Task %s to %d", taskname.Data(),level));
340 fStreamLevel[(Int_t)task] = level;
341 // Initialize DebugStreamer if not yet done
342 if(level >= minLevel[task] && !fDebugStream[task]){
343 TDirectory *savedir = gDirectory;
344 fDebugStream[task] = new TTreeSRedirector(Form("TRD.Debug%s.root", fgTaskNames[task]));
346 SETFLG(fSteerParam, kOwner);
350 //_____________________________________________________________________________
351 void AliTRDReconstructor::Options(UInt_t steer, UChar_t *stream)
353 for(Int_t iopt=0; iopt<kNsteer; iopt++){
354 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));
356 AliDebugGeneral("AliTRDReconstructor", 1, " Debug Streaming");
357 for(Int_t it=0; it<kNtasks; it++)
358 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s [sl_%s] %d", fgTaskNames[it], fgTaskFlags[it], stream ? stream[it] : 0));