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