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 "AliTRDgtuTrack.h"
40 #include "AliTRDrawData.h"
41 #include "AliTRDdigitsManager.h"
42 #include "AliTRDtrackerV1.h"
43 #include "AliTRDrecoParam.h"
45 #include "TTreeStream.h"
47 #define SETFLG(n,f) ((n) |= f)
48 #define CLRFLG(n,f) ((n) &= ~f)
50 ClassImp(AliTRDReconstructor)
52 TClonesArray *AliTRDReconstructor::fgClusters = 0x0;
53 Char_t* AliTRDReconstructor::fgSteerNames[kNsteer] = {
60 ,"8 dEdx slices in ESD "
62 ,"Write Online Tracklets "
64 ,"Stand Alone Tracking "
68 ,"Cosmic Reconstruction "
70 Char_t* AliTRDReconstructor::fgSteerFlags[kNsteer] = {
71 "dc"// digits conversion [false]
72 ,"tc"// apply tail cancellation [true]
73 ,"lut"// look-up-table for cluster shape in the r-phi direction
74 ,"gs"// gauss cluster shape in the r-phi direction
75 ,"sh"// cluster sharing between tracks
76 ,"nn"// PID method in reconstruction (NN) [true]
77 ,"8s"// 8 dEdx slices in ESD [true]
78 ,"cw"// write clusters [true]
79 ,"tw"// write online tracklets [false]
80 ,"ar"// drift gas [false] - do not update the number of exponentials in the TC !
81 ,"sa"// track seeding (stand alone tracking) [true]
82 ,"vc"// vertex constrain on stand alone track finder [false]
83 ,"ti"// improve tracklets in stand alone track finder [true]
84 ,"hlt"// HLT reconstruction [false]
85 ,"cos"// Cosmic Reconstruction [false]
87 Char_t* AliTRDReconstructor::fgTaskNames[kNtasks] = {
93 Char_t* AliTRDReconstructor::fgTaskFlags[kNtasks] = {
100 //_____________________________________________________________________________
101 AliTRDReconstructor::AliTRDReconstructor()
105 // setting default "ON" steering parameters
106 // owner of debug streamers
107 SETFLG(fSteerParam, kOwner);
108 // write clusters [cw]
109 SETFLG(fSteerParam, kWriteClusters);
110 // track seeding (stand alone tracking) [sa]
111 SETFLG(fSteerParam, kSeeding);
112 // PID method in reconstruction (NN) [nn]
113 SETFLG(fSteerParam, kSteerPID);
114 // number of dEdx slices in the ESD track [8s]
115 SETFLG(fSteerParam, kEightSlices);
116 // vertex constrain for stand alone track finder
117 SETFLG(fSteerParam, kVertexConstrained);
118 // improve tracklets for stand alone track finder
119 SETFLG(fSteerParam, kImproveTracklet);
120 // use look up table for cluster r-phi position
121 SETFLG(fSteerParam, kLUT);
122 // use tail cancellation
123 SETFLG(fSteerParam, kTC);
125 memset(fStreamLevel, 0, kNtasks*sizeof(UChar_t));
126 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * kNtasks);
127 // Xe tail cancellation parameters
128 fTCParams[0] = 1.156; // r1
129 fTCParams[1] = 0.130; // r2
130 fTCParams[2] = 0.114; // c1
131 fTCParams[3] = 0.624; // c2
132 // Ar tail cancellation parameters
133 fTCParams[4] = 6.; // r1
134 fTCParams[5] = 0.62; // r2
135 fTCParams[6] = 0.0087;// c1
136 fTCParams[7] = 0.07; // c2
139 //_____________________________________________________________________________
140 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
142 ,fSteerParam(r.fSteerParam)
144 memcpy(fStreamLevel, r.fStreamLevel, kNtasks*sizeof(UChar_t));
145 memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
146 memcpy(fDebugStream, r.fDebugStream, sizeof(TTreeSRedirector *) *kNtasks);
147 // ownership of debug streamers is not taken
148 CLRFLG(fSteerParam, kOwner);
151 //_____________________________________________________________________________
152 AliTRDReconstructor::~AliTRDReconstructor()
155 fgClusters->Delete(); delete fgClusters;
157 if(fSteerParam&kOwner){
158 for(Int_t itask = 0; itask < kNtasks; itask++)
159 if(fDebugStream[itask]) delete fDebugStream[itask];
164 //_____________________________________________________________________________
165 void AliTRDReconstructor::Init(){
169 SetOption(GetOption());
170 Options(fSteerParam, fStreamLevel);
173 //_____________________________________________________________________________
174 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
175 , TTree *digitsTree) const
178 // Convert raw data digits into digit objects in a root tree
180 AliInfo("Feature not available for the moment."); return;
182 AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
184 AliTRDrawData rawData;
186 rawReader->Select("TRD");
187 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
188 manager->MakeBranch(digitsTree);
189 manager->WriteDigits();
194 //_____________________________________________________________________________
195 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
196 , TTree *clusterTree) const
199 // Reconstruct clusters
202 //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
206 rawReader->Select("TRD");
208 // New (fast) cluster finder
209 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
210 clusterer.SetReconstructor(this);
211 clusterer.OpenOutput(clusterTree);
212 clusterer.SetUseLabels(kFALSE);
213 clusterer.Raw2ClustersChamber(rawReader);
215 if(IsWritingClusters()) return;
217 // take over ownership of clusters
218 fgClusters = clusterer.RecPoints();
219 clusterer.SetClustersOwner(kFALSE);
222 //_____________________________________________________________________________
223 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
224 , TTree *clusterTree) const
227 // Reconstruct clusters
230 //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
232 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
233 clusterer.SetReconstructor(this);
234 clusterer.OpenOutput(clusterTree);
235 clusterer.ReadDigits(digitsTree);
236 clusterer.MakeClusters();
238 if(IsWritingClusters()) return;
240 // take over ownership of clusters
241 fgClusters = clusterer.RecPoints();
242 clusterer.SetClustersOwner(kFALSE);
245 //_____________________________________________________________________________
246 AliTracker *AliTRDReconstructor::CreateTracker() const
249 // Create a TRD tracker
252 //return new AliTRDtracker(NULL);
253 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
254 tracker->SetReconstructor(this);
259 //_____________________________________________________________________________
260 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
261 , TTree* /*clusterTree*/
262 , AliESDEvent* /*esd*/) const
271 //_____________________________________________________________________________
272 void AliTRDReconstructor::SetOption(Option_t *opt)
274 // Read option string into the steer param.
277 AliReconstructor::SetOption(opt);
280 TObjArray *opar = s.Tokenize(",");
281 for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
282 Bool_t PROCESSED = kFALSE;
283 TString sopt(((TObjString*)(*opar)[ipar])->String());
284 for(Int_t iopt=0; iopt<kNsteer; iopt++){
285 if(!sopt.Contains(fgSteerFlags[iopt])) continue;
286 SETFLG(fSteerParam, BIT(iopt));
287 if(sopt.Contains("!")) CLRFLG(fSteerParam, BIT(iopt));
292 if(sopt.Contains("gs") && !sopt.Contains("!")){
293 CLRFLG(fSteerParam, kLUT); PROCESSED = kTRUE;
296 if(PROCESSED) continue;
298 if(sopt.Contains("sl")){
299 TObjArray *stl = sopt.Tokenize("_");
300 if(stl->GetEntriesFast() < 3) continue;
301 TString taskstr(((TObjString*)(*stl)[1])->String());
302 TString levelstring(((TObjString*)(*stl)[2])->String());
303 Int_t level = levelstring.Atoi();
305 // Set the stream Level
307 for(Int_t it=0; it<kNtasks; it++){
308 if(taskstr.CompareTo(fgTaskFlags[it]) != 0) continue;
309 SetStreamLevel(level, ETRDReconstructorTask(it));
313 if(PROCESSED) continue;
315 AliWarning(Form("Unknown option flag %s.", sopt.Data()));
319 //_____________________________________________________________________________
320 void AliTRDReconstructor::SetStreamLevel(Int_t level, ETRDReconstructorTask task){
322 // Set the Stream Level for one of the tasks Clusterizer, Tracker or PID
324 const Int_t minLevel[4] = {1, 1, 2, 1}; // the minimum debug level upon which a debug stream is created for different tasks
325 //AliInfo(Form("Setting Stream Level for Task %s to %d", taskname.Data(),level));
326 fStreamLevel[(Int_t)task] = level;
327 // Initialize DebugStreamer if not yet done
328 if(level >= minLevel[task] && !fDebugStream[task]){
329 TDirectory *savedir = gDirectory;
330 fDebugStream[task] = new TTreeSRedirector(Form("TRD.Debug%s.root", fgTaskNames[task]));
332 SETFLG(fSteerParam, kOwner);
336 //_____________________________________________________________________________
337 void AliTRDReconstructor::Options(UInt_t steer, UChar_t *stream)
339 for(Int_t iopt=0; iopt<kNsteer; iopt++){
340 AliInfoGeneral("AliTRDReconstructor", Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));
342 AliInfoGeneral("AliTRDReconstructor", " Debug Streaming");
343 for(Int_t it=0; it<kNtasks; it++)
344 AliInfoGeneral("AliTRDReconstructor", Form(" %s [sl_%s] %d", fgTaskNames[it], fgTaskFlags[it], stream ? stream[it] : 0));