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 "AliTOFGeometryV5.h"
  33 #include "AliTOFtrackerMI.h"
  34 #include "AliTOFtracker.h"
  35 #include "AliTOFReconstructor.h"
  36
  37 class TTree;
  38
  39 class AliESD;
  40
  41 extern TDirectory *gDirectory;
  42 extern TFile *gFile;
  43
  44 ClassImp(AliTOFReconstructor)
  45
  46 //_____________________________________________________________________________
  47   void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader) const
  48 {
  49 // reconstruct clusters from digits
  50
  51   AliTOFClusterFinder tofClus(runLoader);
  52   tofClus.Load();
  53   for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++)
  54     {
  55       tofClus.Digits2RecPoints(iEvent);
  56     }
  57   tofClus.UnLoad();
  58
  59 }
  60
  61 //_____________________________________________________________________________
  62 void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader,
  63                                       AliRawReader *rawReader) const
  64 {
  65 // reconstruct clusters from Raw Data
  66
  67   AliTOFClusterFinder tofClus(runLoader);
  68   tofClus.LoadClusters();
  69   Int_t iEvent = 0;
  70   while (rawReader->NextEvent()) {
  71     tofClus.Digits2RecPoints(iEvent,rawReader);
  72     //tofClus.Raw2Digits(iEvent,rawReader); // temporary solution
  73     iEvent++;
  74   }
  75   tofClus.UnLoadClusters();
  76
  77 }
  78
  79 //_____________________________________________________________________________
  80 void AliTOFReconstructor::Reconstruct(AliRawReader *rawReader,
  81                                       TTree *clustersTree) const
  82 {
  83 // reconstruct clusters from Raw Data
  84
  85   AliTOFClusterFinder tofClus;
  86   tofClus.Digits2RecPoints(rawReader, clustersTree);
  87
  88 }
  89
  90 //_____________________________________________________________________________
  91 AliTracker* AliTOFReconstructor::CreateTracker(AliRunLoader* runLoader) const
  92 {
  93 // create a TOF tracker
  94
  95 //  AliTOFGeometry* geom = GetTOFGeometry(runLoader);
  96   AliTOFGeometry* geom = new AliTOFGeometryV5();
  97   if (!geom) return NULL;
  98   //  Double_t parPID[] = {130., 5.};
  99   Double_t parPID[] = {80., 5.};
 100   TString selectedTracker = GetOption();
 101   // use MI tracker if selected
 102   if (selectedTracker.Contains("MI")) return new AliTOFtrackerMI(geom,parPID);
 103
 104   return new AliTOFtracker(geom, parPID);
 105 }
 106
 107 //_____________________________________________________________________________
 108 void AliTOFReconstructor::FillESD(AliRunLoader* /*runLoader*/,
 109                                   AliESD* /*esd*/) const
 110 {
 111 // nothing to be done
 112
 113 }
 114
 115 //_____________________________________________________________________________
 116 AliTOFGeometry* AliTOFReconstructor::GetTOFGeometry(AliRunLoader* runLoader) const
 117 {
 118 // get the TOF parameters
 119
 120   AliTOFGeometry *tofGeom;
 121
 122   runLoader->CdGAFile();
 123   TDirectory *savedir=gDirectory;
 124   TFile *in=(TFile*)gFile;
 125   if (!in->IsOpen()) {
 126     AliWarning("Geometry file is not open default  TOF geometry will be used");
 127     tofGeom = new AliTOFGeometryV5();
 128   }
 129   else {
 130     in->cd();
 131     tofGeom = (AliTOFGeometry*) in->Get("TOFgeometry");
 132   }
 133
 134   savedir->cd();
 135
 136   if (!tofGeom) {
 137     AliError("no TOF geometry available");
 138     return NULL;
 139   }
 140   return tofGeom;
 141 }