TOF/AliTOFReconstructor.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 TOF reconstruction                                              //
  21 //                                                                           //
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24 #include "TFile.h"
  25
  26 #include "AliLog.h"
  27 #include "AliRawReader.h"
  28 #include "AliRunLoader.h"
  29
  30 #include "AliTOFClusterFinder.h"
  31 #include "AliTOFGeometry.h"
  32 #include "AliTOFtrackerMI.h"
  33 #include "AliTOFtracker.h"
  34 #include "AliTOFReconstructor.h"
  35
  36 class TTree;
  37
  38 class AliESD;
  39
  40 extern TDirectory *gDirectory;
  41 extern TFile *gFile;
  42
  43 ClassImp(AliTOFReconstructor)
  44
  45 //_____________________________________________________________________________
  46   void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader) const
  47 {
  48 // reconstruct clusters from digits
  49
  50   AliTOFClusterFinder tofClus(runLoader);
  51   tofClus.Load();
  52   for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++)
  53     {
  54       tofClus.Digits2RecPoints(iEvent);
  55     }
  56   tofClus.UnLoad();
  57
  58 }
  59
  60 //_____________________________________________________________________________
  61 void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader,
  62                                       AliRawReader *rawReader) const
  63 {
  64 // reconstruct clusters from Raw Data
  65
  66   AliTOFClusterFinder tofClus(runLoader);
  67   tofClus.LoadClusters();
  68   Int_t iEvent = 0;
  69   while (rawReader->NextEvent()) {
  70     tofClus.Digits2RecPoints(iEvent,rawReader);
  71     //tofClus.Raw2Digits(iEvent,rawReader); // temporary solution
  72     iEvent++;
  73   }
  74   tofClus.UnLoadClusters();
  75
  76 }
  77
  78 //_____________________________________________________________________________
  79 void AliTOFReconstructor::Reconstruct(AliRawReader *rawReader,
  80                                       TTree *clustersTree) const
  81 {
  82 // reconstruct clusters from Raw Data
  83
  84   AliTOFClusterFinder tofClus;
  85   tofClus.Digits2RecPoints(rawReader, clustersTree);
  86
  87 }
  88
  89 //_____________________________________________________________________________
  90 AliTracker* AliTOFReconstructor::CreateTracker(AliRunLoader* runLoader) const
  91 {
  92 // create a TOF tracker
  93
  94   AliTOFGeometry* geom = GetTOFGeometry(runLoader);
  95   if (!geom) return NULL;
  96   //  Double_t parPID[] = {130., 5.};
  97   Double_t parPID[] = {80., 5.};
  98   TString selectedTracker = GetOption();
  99   // use MI tracker if selected
 100   if (selectedTracker.Contains("MI")) return new AliTOFtrackerMI(geom,parPID);
 101
 102   return new AliTOFtracker(geom, parPID);
 103 }
 104
 105 //_____________________________________________________________________________
 106 void AliTOFReconstructor::FillESD(AliRunLoader* /*runLoader*/,
 107                                   AliESD* /*esd*/) const
 108 {
 109 // nothing to be done
 110
 111 }
 112
 113 //_____________________________________________________________________________
 114 AliTOFGeometry* AliTOFReconstructor::GetTOFGeometry(AliRunLoader* runLoader) const
 115 {
 116 // get the TOF parameters
 117
 118   AliTOFGeometry *tofGeom;
 119
 120   runLoader->CdGAFile();
 121   TDirectory *savedir=gDirectory;
 122   TFile *in=(TFile*)gFile;
 123   if (!in->IsOpen()) {
 124     AliWarning("Geometry file is not open default  TOF geometry will be used");
 125     tofGeom = new AliTOFGeometry();
 126   }
 127   else {
 128     in->cd();
 129     tofGeom = (AliTOFGeometry*) in->Get("TOFgeometry");
 130   }
 131
 132   savedir->cd();
 133
 134   if (!tofGeom) {
 135     AliError("no TOF geometry available");
 136     return NULL;
 137   }
 138   return tofGeom;
 139 }