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GenCosmicsLoader.C
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36 lines (30 loc) · 1.56 KB
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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
//< Loader macro to run QED background generator from QEDepem.C macro, use it as e.g.
//< o2-sim -n10000 -m PIPE ITS TPC -g extgen --configKeyValues "GeneratorExternal.fileName=$O2_ROOT/share/Generators/external/GenCosmicsLoader.C"
//< Generation options can be changed by providing --configKeyValues "cosmics.maxAngle=30.;cosmics.accept=ITS0" etc.
//< See GenCosmicsParam for available options
#include <fairlogger/Logger.h>
FairGenerator* fg = nullptr;
FairGenerator* GenCosmicsLoader()
{
const TString macroName = "GenCosmics";
gSystem->Load("libGeneratorCosmics");
// the path of the macro to load depends on where it was installed, we assume that its installation
// directory is the same as of the loader macro
std::ostringstream mstr;
mstr << __FILE__;
TString macroFullName = Form("%s/%s.C", gSystem->DirName(mstr.str().c_str()), macroName.Data());
LOG(info) << "\nLoading " << macroFullName.Data() << "\n";
gROOT->LoadMacro(macroFullName.Data());
gInterpreter->ProcessLine(Form("%s()", macroName.Data()));
return fg;
}