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
  25 #include "AliTRDReconstructor.h"
  26 #include "AliRunLoader.h"
  27 #include "AliTRDparameter.h"
  28 #include "AliTRDclusterizerV1.h"
  29 #include "AliTRDtracker.h"
  30 #include <TFile.h>
  31
  32
  33 ClassImp(AliTRDReconstructor)
  34
  35
  36 //_____________________________________________________________________________
  37 void AliTRDReconstructor::Reconstruct(AliRunLoader* runLoader) const
  38 {
  39 // reconstruct clusters
  40
  41   AliLoader *loader=runLoader->GetLoader("TRDLoader");
  42   loader->LoadRecPoints("recreate");
  43
  44   AliTRDclusterizerV1 clusterer("clusterer", "TRD clusterizer");
  45   runLoader->CdGAFile();
  46   AliTRDparameter* trdParam = GetTRDparameter(runLoader);
  47   if (!trdParam) {
  48     Error("Reconstruct", "no TRD parameters found");
  49     return;
  50   }
  51   trdParam->ReInit();
  52   clusterer.SetParameter(trdParam);
  53   Int_t nEvents = runLoader->GetNumberOfEvents();
  54
  55   for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) {
  56     clusterer.Open(runLoader->GetFileName(), iEvent);
  57     clusterer.ReadDigits();
  58     clusterer.MakeClusters();
  59     clusterer.WriteClusters(-1);
  60   }
  61 }
  62
  63 //_____________________________________________________________________________
  64 AliTracker* AliTRDReconstructor::CreateTracker(AliRunLoader* runLoader) const
  65 {
  66 // create a TRD tracker
  67
  68   runLoader->CdGAFile();
  69   return new AliTRDtracker(gFile);
  70 }
  71
  72 //_____________________________________________________________________________
  73 void AliTRDReconstructor::FillESD(AliRunLoader* /*runLoader*/,
  74                                   AliESD* /*esd*/) const
  75 {
  76 }
  77
  78
  79 //_____________________________________________________________________________
  80 AliTRDparameter* AliTRDReconstructor::GetTRDparameter(AliRunLoader* runLoader) const
  81 {
  82 // get the TRD parameters
  83
  84   runLoader->CdGAFile();
  85   AliTRDparameter* trdParam = (AliTRDparameter*) gFile->Get("TRDparameter");
  86   if (!trdParam) {
  87     Error("GetTRDparameter", "no TRD parameters available");
  88     return NULL;
  89   }
  90   return trdParam;
  91 }
  92
  93