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
  25 #include <TFile.h>
  26
  27 #include "AliLog.h"
  28 #include "AliRun.h"
  29 #include "AliRunLoader.h"
  30
  31 #include "AliTOFGeometry.h"
  32 #include "AliTOFGeometryV4.h"
  33 #include "AliTOFGeometryV5.h"
  34 #include "AliTOFtracker.h"
  35 #include "AliTOFtrackerMI.h"
  36 #include "AliTOFClusterFinder.h"
  37 #include "AliTOFReconstructor.h"
  38
  39 ClassImp(AliTOFReconstructor)
  40
  41 //_____________________________________________________________________________
  42   void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader) const
  43 {
  44 // reconstruct clusters from digits
  45
  46   AliTOFClusterFinder *tofClus = new AliTOFClusterFinder(runLoader);
  47   tofClus->Load();
  48   for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++)
  49     {
  50       tofClus->Digits2RecPoints(iEvent);
  51     }
  52   tofClus->UnLoad();
  53
  54 }
  55
  56 //_____________________________________________________________________________
  57 void AliTOFReconstructor::Reconstruct(AliRunLoader* runLoader,
  58                                       AliRawReader *rawReader) const
  59 {
  60 // reconstruct clusters from Raw Data
  61
  62   AliTOFClusterFinder tofClus(runLoader);
  63   tofClus.LoadClusters();
  64   Int_t iEvent = 0;
  65   while (rawReader->NextEvent()) {
  66     tofClus.Digits2RecPoints(iEvent,rawReader);
  67     //tofClus.Raw2Digits(iEvent,rawReader); // temporary solution
  68     iEvent++;
  69   }
  70   tofClus.UnLoadClusters();
  71
  72 }
  73
  74 //_____________________________________________________________________________
  75 void AliTOFReconstructor::Reconstruct(AliRawReader *rawReader,
  76                                       TTree *clustersTree) const
  77 {
  78 // reconstruct clusters from Raw Data
  79
  80   AliTOFClusterFinder tofClus;
  81   tofClus.Digits2RecPoints(rawReader, clustersTree);
  82
  83 }
  84
  85 //_____________________________________________________________________________
  86 AliTracker* AliTOFReconstructor::CreateTracker(AliRunLoader* runLoader) const
  87 {
  88 // create a TOF tracker
  89
  90   AliTOFGeometry* geom = GetTOFGeometry(runLoader);
  91   if (!geom) return NULL;
  92   //  Double_t parPID[] = {130., 5.};
  93   Double_t parPID[] = {80., 5.};
  94   TString selectedTracker = GetOption();
  95   // use MI tracker if selected
  96   if (selectedTracker.Contains("MI")) return new AliTOFtrackerMI(geom,parPID);
  97
  98   return new AliTOFtracker(geom, parPID);
  99 }
 100
 101 //_____________________________________________________________________________
 102 void AliTOFReconstructor::FillESD(AliRunLoader* /*runLoader*/,
 103                                   AliESD* /*esd*/) const
 104 {
 105 // nothing to be done
 106
 107 }
 108
 109 //_____________________________________________________________________________
 110 AliTOFGeometry* AliTOFReconstructor::GetTOFGeometry(AliRunLoader* runLoader) const
 111 {
 112 // get the TOF parameters
 113
 114   AliTOFGeometry *tofGeom;
 115
 116   runLoader->CdGAFile();
 117   TDirectory *savedir=gDirectory;
 118   TFile *in=(TFile*)gFile;
 119   if (!in->IsOpen()) {
 120     AliWarning("Geometry file is not open default  TOF geometry will be used");
 121     tofGeom = new AliTOFGeometry();
 122   }
 123   else {
 124     in->cd();
 125     tofGeom = (AliTOFGeometry*) in->Get("TOFgeometry");
 126   }
 127
 128   savedir->cd();
 129
 130   if (!tofGeom) {
 131     AliError("no TOF geometry available");
 132     return NULL;
 133   }
 134   return tofGeom;
 135 }