TRD/AliTRDReconstructor.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   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  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 // Class for TRD reconstruction                                              //
  21 //                                                                           //
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24 #include <TFile.h>
  25 #include <TObjString.h>
  26 #include <TObjArray.h>
  27
  28 #include "AliRunLoader.h"
  29 #include "AliRawReader.h"
  30 #include "AliLog.h"
  31 #include "AliESDTrdTrack.h"
  32 #include "AliESDEvent.h"
  33
  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"
  43
  44 ClassImp(AliTRDReconstructor)
  45
  46
  47 //_____________________________________________________________________________
  48 AliTRDReconstructor::AliTRDReconstructor()
  49   :AliReconstructor()
  50   ,fSteerParam(0x00000007)
  51 {
  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] = 6.;    // r1
  60   fTCParams[5] = 0.62;  // r2
  61   fTCParams[6] = 0.0087;// c1
  62   fTCParams[7] = 0.07;  // c2
  63 }
  64
  65 //_____________________________________________________________________________
  66 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
  67   :AliReconstructor(r)
  68   ,fSteerParam(r.fSteerParam)
  69 {
  70   memcpy(fStreamLevel, r.fStreamLevel, 5*sizeof(UChar_t));
  71   memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
  72 }
  73
  74 //_____________________________________________________________________________
  75 void AliTRDReconstructor::Init(){
  76         //
  77         // Init Options
  78         //
  79         SetOption(GetOption());
  80 }
  81
  82 //_____________________________________________________________________________
  83 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
  84                                       , TTree *digitsTree) const
  85 {
  86   //
  87   // Convert raw data digits into digit objects in a root tree
  88   //
  89
  90   AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
  91
  92   AliTRDrawData rawData;
  93   rawReader->Reset();
  94   rawReader->Select("TRD");
  95   AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
  96   manager->MakeBranch(digitsTree);
  97   manager->WriteDigits();
  98   delete manager;
  99
 100 }
 101
 102 //_____________________________________________________________________________
 103 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
 104                                     , TTree *clusterTree) const
 105 {
 106   //
 107   // Reconstruct clusters
 108   //
 109
 110   AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
 111
 112
 113   rawReader->Reset();
 114   rawReader->Select("TRD");
 115
 116   // New (fast) cluster finder
 117   AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
 118   clusterer.SetReconstructor(this);
 119   clusterer.OpenOutput(clusterTree);
 120   clusterer.SetAddLabels(kFALSE);
 121   clusterer.Raw2ClustersChamber(rawReader);
 122
 123 }
 124
 125 //_____________________________________________________________________________
 126 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
 127                                     , TTree *clusterTree) const
 128 {
 129   //
 130   // Reconstruct clusters
 131   //
 132
 133   AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
 134
 135   AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
 136   clusterer.SetReconstructor(this);
 137   clusterer.OpenOutput(clusterTree);
 138   clusterer.ReadDigits(digitsTree);
 139   clusterer.MakeClusters();
 140
 141 }
 142
 143 //_____________________________________________________________________________
 144 AliTracker *AliTRDReconstructor::CreateTracker() const
 145 {
 146   //
 147   // Create a TRD tracker
 148   //
 149
 150   //return new AliTRDtracker(NULL);
 151   AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
 152   tracker->SetReconstructor(this);
 153   return tracker;
 154
 155 }
 156
 157 //_____________________________________________________________________________
 158 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
 159                                 , TTree* /*clusterTree*/
 160                                 , AliESDEvent* /*esd*/) const
 161 {
 162   //
 163   // Fill ESD
 164   //
 165
 166 }
 167
 168
 169 //_____________________________________________________________________________
 170 void AliTRDReconstructor::SetOption(Option_t *opt)
 171 {
 172 // Read option string into the steer param.
 173 //
 174 // Default steer param values
 175 //
 176 // write clusters [cw] = true
 177 // track seeding (stand alone tracking) [sa] = true
 178 // PID method in reconstruction (NN) [nn] = true
 179 // write online tracklets [tw] = false
 180 // drift gas [ar] = false
 181 //
 182   fSteerParam = 0x00000007;
 183
 184   TString s(opt);
 185   TObjArray *opar = s.Tokenize(",");
 186   for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
 187     TString sopt(((TObjString*)(*opar)[ipar])->String());
 188     if(sopt.Contains("!cw")){
 189       fSteerParam &= ~kWriteClusters;
 190       continue;
 191     } else if(sopt.Contains("!sa")){
 192       fSteerParam &= ~kSeeding;
 193       continue;
 194     } else if(sopt.Contains("!nn")){
 195       fSteerParam &= ~kSteerPID;
 196       continue;
 197     } else if(sopt.Contains("tw")){
 198       fSteerParam |= kWriteTracklets;
 199       continue;
 200     } else if(sopt.Contains("ar")){
 201       fSteerParam |= kDriftGas;
 202       continue;
 203     } else if(sopt.Contains("sl")){
 204         TObjArray *stl = sopt.Tokenize("_");
 205         if(stl->GetEntriesFast() < 3) continue;
 206                         TString taskstr(((TObjString*)(*stl)[1])->String());
 207                         TString levelstring(((TObjString*)(*stl)[2])->String());
 208         // Set the stream Level
 209         Int_t level = levelstring.Atoi();
 210         AliTRDReconstructorTask task = kTracker;
 211         if(taskstr.CompareTo("cl") == 0) task = kClusterizer;
 212         else if(taskstr.CompareTo("tr") == 0) task = kTracker;
 213         else if(taskstr.CompareTo("pi") == 0) task = kPID;
 214         SetStreamLevel(level, task);
 215         continue;
 216                 }
 217   }
 218 }
 219
 220 //_____________________________________________________________________________
 221 void AliTRDReconstructor::SetStreamLevel(Int_t level, AliTRDReconstructorTask task){
 222         //
 223         // Set the Stream Level for one of the tasks Clusterizer, Tracker or PID
 224         //
 225         TString taskname;
 226         switch(task){
 227                 case kClusterizer: taskname = "Clusterizer";
 228                                                                                          break;
 229                 case kTracker: taskname = "Tracker";
 230                                                                          break;
 231                 case kPID: taskname = "PID";
 232                                                          break;
 233         }
 234         AliInfo(Form("Setting Stream Level for Task %s to %d", taskname.Data(),level));
 235         fStreamLevel[(Int_t)task] = level;
 236 }