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 #include <TClonesArray.h>
  28
  29 #include "AliRunLoader.h"
  30 #include "AliRawReader.h"
  31 #include "AliLog.h"
  32 #include "AliESDTrdTrack.h"
  33 #include "AliESDEvent.h"
  34
  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"
  44
  45 ClassImp(AliTRDReconstructor)
  46
  47 TClonesArray *AliTRDReconstructor::fgClusters = 0x0;
  48 //_____________________________________________________________________________
  49 AliTRDReconstructor::AliTRDReconstructor()
  50   :AliReconstructor()
  51   ,fSteerParam(0x00000007)
  52 {
  53   memset(fStreamLevel, 0, 5*sizeof(UChar_t));
  54   // Xe tail cancellation parameters
  55   fTCParams[0] = 1.156; // r1
  56   fTCParams[1] = 0.130; // r2
  57   fTCParams[2] = 0.114; // c1
  58   fTCParams[3] = 0.624; // c2
  59   // Ar tail cancellation parameters
  60   fTCParams[4] = 6.;    // r1
  61   fTCParams[5] = 0.62;  // r2
  62   fTCParams[6] = 0.0087;// c1
  63   fTCParams[7] = 0.07;  // c2
  64 }
  65
  66 //_____________________________________________________________________________
  67 AliTRDReconstructor::AliTRDReconstructor(const AliTRDReconstructor &r)
  68   :AliReconstructor(r)
  69   ,fSteerParam(r.fSteerParam)
  70 {
  71   memcpy(fStreamLevel, r.fStreamLevel, 5*sizeof(UChar_t));
  72   memcpy(fTCParams, r.fTCParams, 8*sizeof(Double_t));
  73 }
  74
  75 //_____________________________________________________________________________
  76 void AliTRDReconstructor::Init(){
  77         //
  78         // Init Options
  79         //
  80         SetOption(GetOption());
  81
  82   AliInfo("TRD reconstruction will use the following settings:");
  83   printf("\tWrite Clusters         [cw] : %s\n", fSteerParam&kWriteClusters?"yes":"no");
  84   printf("\tWrite Online Tracklets [tw] : %s\n", fSteerParam&kWriteTracklets?"yes":"no");
  85   printf("\tDrift Gas Argon        [ar] : %s\n", fSteerParam&kDriftGas?"yes":"no");
  86   printf("\tStand Alone Tracking   [sa] : %s\n", fSteerParam&kSeeding?"yes":"no");
  87   printf("\tNN PID                 [nn] : %s\n", fSteerParam&kSteerPID?"yes":"no");
  88   printf("\tStreaming Levels            : Clusterizer[%d] Tracker[%d] PID[%d]\n", fStreamLevel[kClusterizer], fStreamLevel[kTracker], fStreamLevel[kPID]);
  89 }
  90
  91 //_____________________________________________________________________________
  92 void AliTRDReconstructor::ConvertDigits(AliRawReader *rawReader
  93                                       , TTree *digitsTree) const
  94 {
  95   //
  96   // Convert raw data digits into digit objects in a root tree
  97   //
  98
  99   AliInfo("Convert raw data digits into digit objects [RawReader -> Digit TTree]");
 100
 101   AliTRDrawData rawData;
 102   rawReader->Reset();
 103   rawReader->Select("TRD");
 104   AliTRDdigitsManager *manager = rawData.Raw2Digits(rawReader);
 105   manager->MakeBranch(digitsTree);
 106   manager->WriteDigits();
 107   delete manager;
 108
 109 }
 110
 111 //_____________________________________________________________________________
 112 void AliTRDReconstructor::Reconstruct(AliRawReader *rawReader
 113                                     , TTree *clusterTree) const
 114 {
 115   //
 116   // Reconstruct clusters
 117   //
 118
 119   //AliInfo("Reconstruct TRD clusters from RAW data [RawReader -> Cluster TTree]");
 120
 121
 122   rawReader->Reset();
 123   rawReader->Select("TRD");
 124
 125   // New (fast) cluster finder
 126   AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
 127   clusterer.SetReconstructor(this);
 128   clusterer.OpenOutput(clusterTree);
 129   clusterer.SetAddLabels(kFALSE);
 130   clusterer.Raw2ClustersChamber(rawReader);
 131
 132   if(IsWritingClusters()) return;
 133
 134   // take over ownership of clusters
 135   fgClusters = clusterer.RecPoints();
 136   clusterer.SetClustersOwner(kFALSE);
 137 }
 138
 139 //_____________________________________________________________________________
 140 void AliTRDReconstructor::Reconstruct(TTree *digitsTree
 141                                     , TTree *clusterTree) const
 142 {
 143   //
 144   // Reconstruct clusters
 145   //
 146
 147   //AliInfo("Reconstruct TRD clusters from Digits [Digit TTree -> Cluster TTree]");
 148
 149   AliTRDclusterizer clusterer("clusterer","TRD clusterizer");
 150   clusterer.SetReconstructor(this);
 151   clusterer.OpenOutput(clusterTree);
 152   clusterer.ReadDigits(digitsTree);
 153   clusterer.MakeClusters();
 154
 155   if(IsWritingClusters()) return;
 156
 157   // take over ownership of clusters
 158   fgClusters = clusterer.RecPoints();
 159   clusterer.SetClustersOwner(kFALSE);
 160 }
 161
 162 //_____________________________________________________________________________
 163 AliTracker *AliTRDReconstructor::CreateTracker() const
 164 {
 165   //
 166   // Create a TRD tracker
 167   //
 168
 169   //return new AliTRDtracker(NULL);
 170   AliTRDtrackerV1 *tracker = new AliTRDtrackerV1();
 171   tracker->SetReconstructor(this);
 172   return tracker;
 173
 174 }
 175
 176 //_____________________________________________________________________________
 177 void AliTRDReconstructor::FillESD(TTree* /*digitsTree*/
 178                                 , TTree* /*clusterTree*/
 179                                 , AliESDEvent* /*esd*/) const
 180 {
 181   //
 182   // Fill ESD
 183   //
 184
 185 }
 186
 187
 188 //_____________________________________________________________________________
 189 void AliTRDReconstructor::SetOption(Option_t *opt)
 190 {
 191 // Read option string into the steer param.
 192 //
 193 // Default steer param values
 194 //
 195 // write clusters [cw] = true
 196 // track seeding (stand alone tracking) [sa] = true
 197 // PID method in reconstruction (NN) [nn] = true
 198 // write online tracklets [tw] = false
 199 // drift gas [ar] = false
 200 //
 201   fSteerParam = 0x00000007;
 202
 203   TString s(opt);
 204   TObjArray *opar = s.Tokenize(",");
 205   for(Int_t ipar=0; ipar<opar->GetEntriesFast(); ipar++){
 206     TString sopt(((TObjString*)(*opar)[ipar])->String());
 207     if(sopt.Contains("!cw")){
 208       fSteerParam &= ~kWriteClusters;
 209       continue;
 210     } else if(sopt.Contains("!sa")){
 211       fSteerParam &= ~kSeeding;
 212       continue;
 213     } else if(sopt.Contains("!nn")){
 214       fSteerParam &= ~kSteerPID;
 215       continue;
 216     } else if(sopt.Contains("tw")){
 217       if(!sopt.Contains("!")) fSteerParam |= kWriteTracklets;
 218       continue;
 219     } else if(sopt.Contains("ar")){
 220       if(!sopt.Contains("!")) fSteerParam |= kDriftGas;
 221       continue;
 222     } else if(sopt.Contains("sl")){
 223         TObjArray *stl = sopt.Tokenize("_");
 224         if(stl->GetEntriesFast() < 3) continue;
 225                         TString taskstr(((TObjString*)(*stl)[1])->String());
 226                         TString levelstring(((TObjString*)(*stl)[2])->String());
 227         // Set the stream Level
 228         Int_t level = levelstring.Atoi();
 229         AliTRDReconstructorTask task = kTracker;
 230         if(taskstr.CompareTo("cl") == 0) task = kClusterizer;
 231         else if(taskstr.CompareTo("tr") == 0) task = kTracker;
 232         else if(taskstr.CompareTo("pi") == 0) task = kPID;
 233         SetStreamLevel(level, task);
 234         continue;
 235                 }
 236   }
 237 }
 238
 239 //_____________________________________________________________________________
 240 void AliTRDReconstructor::SetStreamLevel(Int_t level, AliTRDReconstructorTask task){
 241         //
 242         // Set the Stream Level for one of the tasks Clusterizer, Tracker or PID
 243         //
 244         TString taskname;
 245         switch(task){
 246                 case kClusterizer: taskname = "Clusterizer";
 247                                                                                          break;
 248                 case kTracker: taskname = "Tracker";
 249                                                                          break;
 250                 case kPID: taskname = "PID";
 251                                                          break;
 252         }
 253         //AliInfo(Form("Setting Stream Level for Task %s to %d", taskname.Data(),level));
 254         fStreamLevel[(Int_t)task] = level;
 255 }