CbmEcalTrackingMuch.cxx

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/* Copyright (C) 2011-2016 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Volker Friese [committer], Florian Uhlig */
 
#include "CbmEcalTrackingMuch.h"
 
#include "CbmEcalInf.h"
#include "CbmEcalStructure.h"
#include "CbmStsKFTrackFitter.h"
#include "CbmStsTrack.h"
#include "FairRootManager.h"
#include "FairTrackParam.h"
#include "TClonesArray.h"
 
#include <iostream>
 
using std::cerr;
using std::cout;
using std::endl;
using std::list;
 
void CbmEcalTrackingMuch::Exec(Option_t*)
{
  Int_t n = fStsTracks->GetEntriesFast();
  Int_t i = 0;
  CbmStsTrack* tr;
  FairTrackParam tpar;
 
  fTrackPar->Clear();
  for (; i < n; i++) {
    tr = (CbmStsTrack*) fStsTracks->At(i);
    if (!tr) continue;
    fFitter->Extrapolate(tr, fCaloZ, &tpar);
    new ((*fTrackPar)[i]) FairTrackParam(tpar);
  }
}
 
 
CbmEcalTrackingMuch::CbmEcalTrackingMuch(const char* name, const Int_t iVerbose)
  : FairTask(name, iVerbose)
  , fStsTracks(NULL)
  , fStr(NULL)
  , fInf(NULL)
  , fCaloZ(0.)
  , fFitter(NULL)
  , fTrackPar(NULL)
{
}
 
InitStatus CbmEcalTrackingMuch::Init()
{
  FairRootManager* fManager = FairRootManager::Instance();
  if (!fManager) {
    Fatal("Init", "Can't find a Root Manager.");
    return kFATAL;
  }
  fStsTracks = (TClonesArray*) fManager->GetObject("StsTrack");
  if (!fStsTracks) {
    Fatal("Init", "Can't find an array of STS tracks.");
    return kFATAL;
  }
  fStr = (CbmEcalStructure*) fManager->GetObject("EcalStructure");
  if (!fStr) {
    Fatal("Init", "Can't find calorimeter structure in the system");
    return kFATAL;
  }
  fTrackPar = new TClonesArray("FairTrackParam", 3000);
  fManager->Register("EcalTrackParam", "ECAL", fTrackPar, IsOutputBranchPersistent("EcalTrackParam"));
  fFitter = new CbmStsKFTrackFitter();
  fInf    = fStr->GetEcalInf();
  fCaloZ  = fInf->GetZPos();
 
  return kSUCCESS;
}
 
void CbmEcalTrackingMuch::Finish()
{
  fTrackPar->Delete();
  delete fTrackPar;
  delete fFitter;
}
 
ClassImp(CbmEcalTrackingMuch)