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>
28 #include "AliRunLoader.h"
29 #include "AliRawReader.h"
31 #include "AliESDTrdTrack.h"
32 #include "AliESDEvent.h"
34 #include "AliTRDReconstructor.h"
35 #include "AliTRDclusterizer.h"
36 #include "AliTRDtracker.h"
37 #include "AliTRDpidESD.h"
38 #include "AliTRDgtuTrack.h"
39 #include "AliTRDrawData.h"
40 #include "AliTRDdigitsManager.h"
41 #include "AliTRDtrackerV1.h"
42 #include "AliTRDrecoParam.h"
44 ClassImp(AliTRDReconstructor)
47 //_____________________________________________________________________________
48 AliTRDReconstructor::AliTRDReconstructor()
50 ,fSteerParam(0x00000007)
52 memset(fStreamLevel, 0, 5*sizeof(UChar_t));
53 // Xe tail cancellation parameters
54 fTCParams[0] = 1.156; // r1
55 fTCParams[1] = 0.130; // r2
56 fTCParams[2] = 0.114; // c1
57 fTCParams[3] = 0.624; // c2
58 // Ar tail cancellation parameters
59 fTCParams[4] = 1.156; // r1
60 fTCParams[5] = 0.130; // r2
61 fTCParams[6] = 0.114; // c1
62 fTCParams[7] = 0.624; // c2
65 //_____________________________________________________________________________
66 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
68 ,fSteerParam(0x00000007)
70 memcpy(fStreamLevel, r.fStreamLevel, 5*sizeof(UChar_t));
71 memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
75 //_____________________________________________________________________________
76 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
77 , TTree *digitsTree) const
80 // Convert raw data digits into digit objects in a root tree
83 AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
85 AliTRDrawData rawData;
87 rawReader->Select("TRD");
88 AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
89 manager->MakeBranch(digitsTree);
90 manager->WriteDigits();
95 //_____________________________________________________________________________
96 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
97 , TTree *clusterTree) const
100 // Reconstruct clusters
103 AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
107 rawReader->Select("TRD");
109 // New (fast) cluster finder
110 AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
111 clusterer.SetReconstructor(this);
112 clusterer.OpenOutput(clusterTree);
113 clusterer.SetAddLabels(kFALSE);
114 clusterer.Raw2ClustersChamber(rawReader);
118 //_____________________________________________________________________________
119 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
120 , TTree *clusterTree) const
123 // Reconstruct clusters
126 AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
128 AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
129 clusterer.SetReconstructor(this);
130 clusterer.OpenOutput(clusterTree);
131 clusterer.ReadDigits(digitsTree);
132 clusterer.MakeClusters();
136 //_____________________________________________________________________________
137 AliTracker *AliTRDReconstructor::CreateTracker() const
140 // Create a TRD tracker
143 //return new AliTRDtracker(NULL);
144 AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
145 tracker->SetReconstructor(this);
150 //_____________________________________________________________________________
151 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
152 , TTree* /*clusterTree*/
153 , AliESDEvent* /*esd*/) const
162 //_____________________________________________________________________________
163 void AliTRDReconstructor::SetOption(Option_t *opt)
165 // Read option string into the steer param.
167 // Default steer param values
169 // write clusters [cw] = true
170 // track seeding (stand alone tracking) [sa] = true
171 // PID method in reconstruction (NN) [nn] = true
172 // write online tracklets [tw] = false
173 // drift gas [ar] = false
175 fSteerParam = 0x00000007;
178 TObjArray *opar = s.Tokenize(",");
179 for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
180 TString sopt(((TObjString*)(*opar)[ipar])->String());
181 if(sopt.Contains("!cw")){
182 fSteerParam &= ~kWriteClusters;
184 } else if(sopt.Contains("!sa")){
185 fSteerParam &= ~kSeeding;
187 } else if(sopt.Contains("!nn")){
188 fSteerParam &= ~kSteerPID;
190 } else if(sopt.Contains("tw")){
191 fSteerParam |= kWriteTracklets;
193 } else if(sopt.Contains("ar")){
194 fSteerParam |= kDriftGas;