PropagationEngine.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/

// PropagationEngine.h, (c) ATLAS Detector software
 
#ifndef TRKEXENGINE_PROPAGATIONENGINE_H
#define TRKEXENGINE_PROPAGATIONENGINE_H
 
// Gaudi
#include "AthenaBaseComps/AthAlgTool.h"
#include "GaudiKernel/ToolHandle.h"
// Trk
#include "TrkExInterfaces/IPropagationEngine.h"
#include "TrkExInterfaces/IPropagator.h"
#include "TrkExInterfaces/ExtrapolationMacros.h"
#include "TrkExUtils/ExtrapolationCell.h"
#include "TrkEventPrimitives/PropDirection.h"
#include "TrkParameters/TrackParameters.h"
#include "TrkNeutralParameters/NeutralParameters.h"
 
namespace Trk {
 
  class Surface;

  class PropagationEngine : public AthAlgTool, virtual public IPropagationEngine {
    public:

      PropagationEngine(const std::string&,const std::string&,const IInterface*);

      ~PropagationEngine();

      StatusCode initialize();

      StatusCode finalize();

      using IPropagationEngine::propagate;

      virtual ExtrapolationCode propagate(ExCellCharged& ecCell,
                                          const Surface& sf,
                                          PropDirection dir=alongMomentum,
                                          BoundaryCheck bcheck = true,
                                          bool returnCurvilinear = true) const;

      virtual ExtrapolationCode propagate(ExCellNeutral& enCell,
                                          const Surface& sf,
                                          PropDirection dir=alongMomentum,
                                          BoundaryCheck bcheck = true,
                                          bool returnCurvilinear = true) const;
 
    protected:
      ToolHandle<IPropagator>     m_propagator{this, "Propagator", "Trk::RungeKuttaPropagator/AtlasRungeKuttaPropagator"};
      DoubleProperty m_pathLimitTolerance{this, "PathLimitTolerance", 0.01};
      StringProperty m_sopPrefix_prop{this, "OutputPrefix", ""};
      StringProperty m_sopPostfix_prop{this, "OutputPostfix", ""};
 
  };
 
 
} // end of namespace
 
#endif // TRKEXINTERFACES_INAVIGATIONENGINE_H