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 ///////////////////////////////////////////////////////////////////////////////
24 #include <TObjString.h>
25 #include <TObjArray.h>
26 #include <TTreeStream.h>
27 #include <TDirectory.h>
29 #include "AliRawReader.h"
31 #include "AliTRDReconstructor.h"
32 #include "AliTRDclusterizer.h"
33 #include "AliTRDrawData.h"
34 #include "AliTRDdigitsManager.h"
35 #include "AliTRDtrackerV1.h"
37 #define SETFLG(n,f) ((n) |= f)
38 #define CLRFLG(n,f) ((n) &= ~f)
40 ClassImp(AliTRDReconstructor)
42 TClonesArray *AliTRDReconstructor::fgClusters = 0x0;
43 TClonesArray *AliTRDReconstructor::fgTracklets = 0x0;
44 Char_t* AliTRDReconstructor::fgSteerNames[kNsteer] = {
51 ,"8 dEdx slices in ESD "
53 ,"Write Online Tracklets "
55 ,"Stand Alone Tracking "
59 ,"Cosmic Reconstruction "
60 ,"Process Online Tracklets"
62 Char_t* AliTRDReconstructor::fgSteerFlags[kNsteer] = {
63 "dc"// digits conversion [false]
64 ,"tc"// apply tail cancellation [true]
65 ,"lut"// look-up-table for cluster shape in the r-phi direction
66 ,"gs"// gauss cluster shape in the r-phi direction
67 ,"sh"// cluster sharing between tracks
68 ,"nn"// PID method in reconstruction (NN) [true]
69 ,"8s"// 8 dEdx slices in ESD [true]
70 ,"cw"// write clusters [true]
71 ,"tw"// write online tracklets [false]
72 ,"ar"// drift gas [false] - do not update the number of exponentials in the TC !
73 ,"sa"// track seeding (stand alone tracking) [true]
74 ,"vc"// vertex constrain on stand alone track finder [false]
75 ,"ti"// improve tracklets in stand alone track finder [true]
76 ,"hlt"// HLT reconstruction [false]
77 ,"cos"// Cosmic Reconstruction [false]
78 ,"tp"// also use online tracklets for reconstruction [false]
80 Char_t* AliTRDReconstructor::fgTaskNames[kNtasks] = {
86 Char_t* AliTRDReconstructor::fgTaskFlags[kNtasks] = {
93 //_____________________________________________________________________________
94 AliTRDReconstructor::AliTRDReconstructor()
98 // setting default "ON" steering parameters
99 // owner of debug streamers
100 SETFLG(fSteerParam, kOwner);
101 // write clusters [cw]
102 SETFLG(fSteerParam, kWriteClusters);
103 // track seeding (stand alone tracking) [sa]
104 SETFLG(fSteerParam, kSeeding);
105 // PID method in reconstruction (NN) [nn]
106 SETFLG(fSteerParam, kSteerPID);
107 // number of dEdx slices in the ESD track [8s]
108 SETFLG(fSteerParam, kEightSlices);
109 // vertex constrain for stand alone track finder
110 SETFLG(fSteerParam, kVertexConstrained);
111 // improve tracklets for stand alone track finder
112 SETFLG(fSteerParam, kImproveTracklet);
113 // use look up table for cluster r-phi position
114 SETFLG(fSteerParam, kLUT);
115 // use tail cancellation
116 SETFLG(fSteerParam, kTC);
118 memset(fStreamLevel, 0, kNtasks*sizeof(UChar_t));
119 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * kNtasks);
120 // Xe tail cancellation parameters
121 fTCParams[0] = 1.156; // r1
122 fTCParams[1] = 0.130; // r2
123 fTCParams[2] = 0.114; // c1
124 fTCParams[3] = 0.624; // c2
125 // Ar tail cancellation parameters
126 fTCParams[4] = 6.; // r1
127 fTCParams[5] = 0.62; // r2
128 fTCParams[6] = 0.0087;// c1
129 fTCParams[7] = 0.07; // c2
132 //_____________________________________________________________________________
133 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
135 ,fSteerParam(r.fSteerParam)
141 memcpy(fStreamLevel, r.fStreamLevel, kNtasks*sizeof(UChar_t));
142 memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
143 memcpy(fDebugStream, r.fDebugStream, sizeof(TTreeSRedirector *) *kNtasks);
144 // ownership of debug streamers is not taken
145 CLRFLG(fSteerParam, kOwner);
148 //_____________________________________________________________________________
149 AliTRDReconstructor::~AliTRDReconstructor()
156 fgClusters->Delete(); delete fgClusters;
159 fgTracklets->Delete(); delete fgTracklets;
161 if(fSteerParam&kOwner){
162 for(Int_t itask = 0; itask < kNtasks; itask++)
163 if(fDebugStream[itask]) delete fDebugStream[itask];
168 //_____________________________________________________________________________
169 void AliTRDReconstructor::Init(){
173 SetOption(GetOption());
174 Options(fSteerParam, fStreamLevel);
177 //_____________________________________________________________________________
178 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
179 , TTree *digitsTree) const
182 // Convert raw data digits into digit objects in a root tree
185 //AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
187 AliTRDrawData rawData;
189 rawReader->Select("TRD");
190 rawData.OpenOutput();
191 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
192 manager->MakeBranch(digitsTree);
193 manager->WriteDigits();
198 //_____________________________________________________________________________
199 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
200 , TTree *clusterTree) const
203 // Reconstruct clusters
206 //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
210 rawReader->Select("TRD");
212 // New (fast) cluster finder
213 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
214 clusterer.SetReconstructor(this);
215 clusterer.OpenOutput(clusterTree);
216 clusterer.OpenTrackletOutput();
217 clusterer.SetUseLabels(kFALSE);
218 clusterer.Raw2ClustersChamber(rawReader);
220 if(IsWritingClusters()) return;
222 // take over ownership of clusters
223 fgClusters = clusterer.RecPoints();
224 clusterer.SetClustersOwner(kFALSE);
226 // take over ownership of online tracklets
227 fgTracklets = clusterer.TrackletsArray();
228 clusterer.SetTrackletsOwner(kFALSE);
231 //_____________________________________________________________________________
232 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
233 , TTree *clusterTree) const
236 // Reconstruct clusters
239 //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
241 AliTRDclusterizer clusterer(fgTaskNames[kClusterizer], fgTaskNames[kClusterizer]);
242 clusterer.SetReconstructor(this);
243 clusterer.OpenOutput(clusterTree);
244 clusterer.ReadDigits(digitsTree);
245 clusterer.MakeClusters();
247 if(IsWritingClusters()) return;
249 // take over ownership of clusters
250 fgClusters = clusterer.RecPoints();
251 clusterer.SetClustersOwner(kFALSE);
253 // take over ownership of online tracklets
254 fgTracklets = clusterer.TrackletsArray();
255 clusterer.SetTrackletsOwner(kFALSE);
258 //_____________________________________________________________________________
259 AliTracker *AliTRDReconstructor::CreateTracker() const
262 // Create a TRD tracker
265 //return new AliTRDtracker(NULL);
266 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
267 tracker->SetReconstructor(this);
272 //_____________________________________________________________________________
273 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
274 , TTree* /*clusterTree*/
275 , AliESDEvent* /*esd*/) const
284 //_____________________________________________________________________________
285 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)
357 for(Int_t iopt=0; iopt<kNsteer; iopt++){
358 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));
360 AliDebugGeneral("AliTRDReconstructor", 1, " Debug Streaming");
361 for(Int_t it=0; it<kNtasks; it++)
362 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s [sl_%s] %d", fgTaskNames[it], fgTaskFlags[it], stream ? stream[it] : 0));