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geant4/examples/extended/persistency/P01/src/RootIO.cc
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2018-12-07 15:15:39 +01:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
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// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
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// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
/// \file persistency/P01/src/RootIO.cc
/// \brief Implementation of the RootIO class
//
//
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#include <sstream>
#include "RootIO.hh"
//
#include "G4SDManager.hh"
#include "G4HCofThisEvent.hh"
#include "G4EventManager.hh"
#include "G4Event.hh"
//
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static RootIO* instance = 0;
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RootIO::RootIO():fNevents(0)
{
// initialize ROOT
TSystem ts;
gSystem->Load("libExP01ClassesDict");
//gDebug = 1;
fFile = new TFile("hits.root","RECREATE");
}
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RootIO::~RootIO()
{}
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RootIO* RootIO::GetInstance()
{
if (instance == 0 )
{
instance = new RootIO();
}
return instance;
}
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void RootIO::Write(std::vector<ExP01TrackerHit*>* hcont)
{
fNevents++;
std::ostringstream os;
os << fNevents;
std::string stevt = "Event_" + os.str();
const char* chevt = stevt.c_str();
G4cout << "writing " << stevt << G4endl;
fFile->WriteObject(hcont, chevt);
}
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void RootIO::Close()
{
fFile->Close();
}
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