TruthToTrack.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
// Dear emacs, this is -*-c++-*-

 
#ifndef TRUTHTOTRACK_H
#define TRUTHTOTRACK_H
 
#include "GaudiKernel/ToolHandle.h"
#include "TrkToolInterfaces/ITruthToTrack.h"
#include "AthenaBaseComps/AthAlgTool.h"
#include "TrkExInterfaces/IExtrapolator.h"
#include "TrkParameters/TrackParameters.h"
 
namespace Trk {
 
  
  class TruthToTrack : virtual public ITruthToTrack,
               public ::AthAlgTool
  {
  public:
    // FIXME: interfaceID() should not be here, but clients that use TruthToTrack directly
    // (not via ITruthToTrack) will break without this:
    // static const InterfaceID& interfaceID() { return ITruthToTrack::interfaceID(); }
 
    TruthToTrack(const std::string& type, const std::string& name, const IInterface* parent);
 
    virtual StatusCode initialize();

    using ITruthToTrack::makeProdVertexParameters;
    virtual const Trk::TrackParameters* makeProdVertexParameters(HepMC::ConstGenParticlePtr part) const;
    virtual const Trk::TrackParameters* makeProdVertexParameters(const xAOD::TruthParticle* part) const;

    using ITruthToTrack::makePerigeeParameters;
    virtual const Trk::TrackParameters* makePerigeeParameters(HepMC::ConstGenParticlePtr part) const;
    virtual const Trk::TrackParameters* makePerigeeParameters(const xAOD::TruthParticle* part) const;
 
  private:
    ToolHandle<Trk::IExtrapolator> m_extrapolator;
  };
}
 
#endif/*TRUTHTOTRACK_H*/