GFluxFileConfigI.cxx

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//____________________________________________________________________________
/*!
 Copyright (c) 2003-2025, The GENIE Collaboration
 For the full text of the license visit http://copyright.genie-mc.org
 
 Robert Hatcher <rhatcher@fnal.gov>
 Fermi National Accelerator Laboratory
*/
//____________________________________________________________________________
 
#include "Tools/Flux/GFluxFileConfigI.h"
#include "Framework/Messenger/Messenger.h"
#include "TMath.h"
 
namespace genie {
namespace flux {
 
  GFluxFileConfigI::GFluxFileConfigI()
    : fPdgCList(new PDGCodeList)
    , fPdgCListRej(new PDGCodeList)
    , fXMLbasename("")
    , fNCycles(0)
    , fICycle(0)
    , fZ0(-3.4e38)
  { ; }
 
  GFluxFileConfigI::~GFluxFileConfigI() { ; }
 
  void GFluxFileConfigI::SetXMLFileBase(std::string xmlbasename)
  { fXMLbasename = xmlbasename; }
 
  //___________________________________________________________________________
  void GFluxFileConfigI::LoadBeamSimData(const std::set<std::string>& fileset,
                                         const std::string&           config )
  {
    // Loads a beam simulation root file into the GFluxFileConfig driver.
    // have a set<> want a vector<>
    std::vector<std::string> filevec;
    std::copy(fileset.begin(),fileset.end(),std::back_inserter(filevec));
    LoadBeamSimData(filevec,config); // call the one that takes a vector
  }
 
  //___________________________________________________________________________
  void GFluxFileConfigI::LoadBeamSimData(const std::string& filename,
                                         const std::string& config )
  {
    // Loads a beam simulation root file into the GFluxFileConfig driver.
    std::vector<std::string> filevec;
    filevec.push_back(filename);
    LoadBeamSimData(filevec,config); // call the one that takes a vector
  }
 
  //___________________________________________________________________________
  void GFluxFileConfigI::GetBranchInfo(std::vector<std::string>& /* branchNames */,
                                       std::vector<std::string>& /* branchClassNames */,
                                       std::vector<void**>&      /* branchObjPointers */)
  {
    // allow flux driver to report back current status and/or ntuple entry
    // info for possible recording in the output file by supplying
    // the class name, and a pointer to the object that will be filled
    // as well as a suggested name for the branch.
 
    // default is not to supply anything
  }
 
  //___________________________________________________________________________
  TTree* GFluxFileConfigI::GetMetaDataTree()
  {
    return 0;
  }
 
  //___________________________________________________________________________
  void GFluxFileConfigI::SetUpstreamZ(double z0)
  {
    // The flux neutrino position (x,y) is given on the user specified
    // flux window.  This method sets the preferred user coord starting z
    // position upstream of detector face. Each flux neutrino will be
    // backtracked from the initial flux window to the input z0.
    // If the value is unreasonable (> 10^30) then the ray is left on
    // the flux window.
 
    fZ0 = z0;
  }
  //___________________________________________________________________________
  void GFluxFileConfigI::SetNumOfCycles(long int ncycle)
  {
    // The flux ntuples can be recycled for a number of times to boost
    // generated event statistics without requiring enormous beam simulation
    // statistics.
    // That option determines how many times the driver is going to cycle
    // through the input flux ntuple.
    // With ncycle=0 the flux ntuple will be recycled an infinite amount of
    // times so that the event generation loop can exit only on a POT or
    // event num check.
 
    fNCycles = TMath::Max(0L, ncycle);
  }
  //___________________________________________________________________________
  void GFluxFileConfigI::SetFluxParticles(const PDGCodeList & particles)
  {
    fPdgCList->Copy(particles);
 
    LOG("Flux", pINFO)
      << "Declared list of neutrino species: " << *fPdgCList;
  }
 
} // namespace flux
} // namespace genie