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>
32 #include "AliRawReader.h"
34 #include "AliTRDReconstructor.h"
35 #include "AliTRDclusterizer.h"
36 #include "AliTRDrawData.h"
37 #include "AliTRDrawStreamBase.h"
38 #include "AliTRDdigitsManager.h"
39 #include "AliTRDtrackerV1.h"
41 #define SETFLG(n,f) ((n) |= f)
42 #define CLRFLG(n,f) ((n) &= ~f)
44 ClassImp(AliTRDReconstructor)
46 TClonesArray *AliTRDReconstructor::fgClusters = NULL;
47 TClonesArray *AliTRDReconstructor::fgTracklets = NULL;
48 Char_t const * AliTRDReconstructor::fgSteerNames[kNsteer] = {
51 ,"Write Online Tracklets "
52 ,"Stand Alone Tracking "
54 ,"Process Online Trklts "
56 ,"Cl. Radial Correction "
58 Char_t const * AliTRDReconstructor::fgSteerFlags[kNsteer] = {
59 "dc"// digits conversion [false]
60 ,"cw"// write clusters [true]
61 ,"tw"// write online tracklets [false]
62 ,"sa"// track seeding (stand alone tracking) [true]
63 ,"hlt"// HLT reconstruction [false]
64 ,"tp"// also use online tracklets for reconstruction [false]
65 ,"deb"// Write debug stream [false]
66 ,"cc" // Cluster radial correction during reconstruction [false]
68 Char_t const * AliTRDReconstructor::fgTaskNames[AliTRDrecoParam::kTRDreconstructionTasks] = {
73 Char_t const * AliTRDReconstructor::fgTaskFlags[AliTRDrecoParam::kTRDreconstructionTasks] = {
78 Int_t AliTRDReconstructor::fgNTimeBins = -1;
79 const Float_t AliTRDReconstructor::fgkMinClustersInTrack = 0.5; //
80 const Float_t AliTRDReconstructor::fgkLabelFraction = 0.8; //
81 const Double_t AliTRDReconstructor::fgkMaxChi2 = 12.0; //
82 const Double_t AliTRDReconstructor::fgkMaxSnp = 0.95; // Maximum local sine of the azimuthal angle
83 const Double_t AliTRDReconstructor::fgkMaxStep = 2.0; // Maximal step size in propagation
84 const Double_t AliTRDReconstructor::fgkEpsilon = 1.e-5; // Precision of radial coordinate
86 //_____________________________________________________________________________
87 AliTRDReconstructor::AliTRDReconstructor()
92 // setting default "ON" steering parameters
93 // owner of debug streamers
94 SETFLG(fSteerParam, kOwner);
95 // write clusters [cw]
96 SETFLG(fSteerParam, kWriteClusters);
97 // track seeding (stand alone tracking) [sa]
98 SETFLG(fSteerParam, kSeeding);
99 // Cluster radial correction during reconstruction [cc]
100 //SETFLG(fSteerParam, kClRadialCorr);
101 memset(fDebugStream, 0, sizeof(TTreeSRedirector *) * AliTRDrecoParam::kTRDreconstructionTasks);
104 //_____________________________________________________________________________
105 AliTRDReconstructor::~AliTRDReconstructor()
112 fgClusters->Delete();
117 fgTracklets->Delete();
121 if(fSteerParam&kOwner){
122 for(Int_t itask = 0; itask < AliTRDrecoParam::kTRDreconstructionTasks; itask++)
123 if(fDebugStream[itask]) delete fDebugStream[itask];
132 //_____________________________________________________________________________
133 void AliTRDReconstructor::Init(){
137 SetOption(GetOption());
138 Options(fSteerParam);
141 fClusterizer = new AliTRDclusterizer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
142 fClusterizer->SetReconstructor(this);
145 // Make Debug Streams when Debug Streaming
146 if(IsDebugStreaming()){
147 for(Int_t task = 0; task < AliTRDrecoParam::kTRDreconstructionTasks; task++){
148 TDirectory *savedir = gDirectory;
149 fDebugStream[task] = new TTreeSRedirector(Form("TRD.Debug%s.root", fgTaskNames[task]));
151 SETFLG(fSteerParam, kOwner);
156 //_____________________________________________________________________________
157 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
158 , TTree *digitsTree) const
161 // Convert raw data digits into digit objects in a root tree
164 //AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
166 AliTRDrawData rawData;
168 rawReader->Select("TRD");
169 AliTRDrawStreamBase::SetRawStreamVersion(GetRecoParam()->GetRawStreamVersion()->Data());
170 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
171 manager->MakeBranch(digitsTree);
172 manager->WriteDigits();
177 //_____________________________________________________________________________
178 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
179 , TTree *clusterTree) const
182 // Reconstruct clusters
185 //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
189 rawReader->Select("TRD");
190 AliTRDrawStreamBase::SetRawStreamVersion(GetRecoParam()->GetRawStreamVersion()->Data());
193 AliFatal("Clusterizer not available!");
197 fClusterizer->ResetRecPoints();
199 fClusterizer->OpenOutput(clusterTree);
200 fClusterizer->SetUseLabels(kFALSE);
201 fClusterizer->Raw2ClustersChamber(rawReader);
203 fgNTimeBins = fClusterizer->GetNTimeBins();
205 if(IsWritingClusters()) return;
207 // take over ownership of clusters
208 fgClusters = fClusterizer->RecPoints();
209 fClusterizer->SetClustersOwner(kFALSE);
211 // take over ownership of online tracklets
212 fgTracklets = fClusterizer->TrackletsArray();
213 fClusterizer->SetTrackletsOwner(kFALSE);
216 //_____________________________________________________________________________
217 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
218 , TTree *clusterTree) const
221 // Reconstruct clusters
224 //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
226 AliTRDclusterizer clusterer(fgTaskNames[AliTRDrecoParam::kClusterizer], fgTaskNames[AliTRDrecoParam::kClusterizer]);
227 clusterer.SetReconstructor(this);
228 clusterer.OpenOutput(clusterTree);
229 clusterer.ReadDigits(digitsTree);
230 clusterer.MakeClusters();
232 fgNTimeBins = clusterer.GetNTimeBins();
234 if(IsWritingClusters()) return;
236 // take over ownership of clusters
237 fgClusters = clusterer.RecPoints();
238 clusterer.SetClustersOwner(kFALSE);
240 // take over ownership of online tracklets
241 fgTracklets = clusterer.TrackletsArray();
242 clusterer.SetTrackletsOwner(kFALSE);
246 //_____________________________________________________________________________
247 AliTracker *AliTRDReconstructor::CreateTracker() const
250 // Create a TRD tracker
253 //return new AliTRDtracker(NULL);
254 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
255 tracker->SetReconstructor(this);
260 //_____________________________________________________________________________
261 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
262 , TTree* /*clusterTree*/
263 , AliESDEvent* /*esd*/) const
271 //_____________________________________________________________________________
272 void AliTRDReconstructor::SetOption(Option_t *opt)
275 // Read option string into the steer param.
277 // The following string options are available during reconstruction.
278 // In square brackets the default values are given.
279 // "dc" : digits conversion [false]
280 // "cw" : write clusters [true]
281 // "tw" : write online tracklets [false]
282 // "sa" : track seeding (stand alone tracking) [true]
283 // "hlt" : HLT reconstruction [false]
284 // "tp" : also use online tracklets for reconstruction [false]
285 // "deb" : Write debug stream [false]
286 // "cc" : Cluster radial correction during reconstruction [false]
288 // To check the actual options used during reconstruction include the following line in your rec.C script
289 // AliLog::SetClassDebugLevel("AliTRDReconstructor", 1);
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));
305 if(processed) continue;
307 AliWarning(Form("Unknown option flag %s.", sopt.Data()));
311 //_____________________________________________________________________________
312 void AliTRDReconstructor::Options(UInt_t steer)
318 for(Int_t iopt=0; iopt<kNsteer; iopt++){
319 AliDebugGeneral("AliTRDReconstructor", 1, Form(" %s[%s]%s", fgSteerNames[iopt], fgSteerFlags[iopt], steer ?(((steer>>iopt)&1)?" : ON":" : OFF"):""));