INavigationEngine.h

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/

// INavigationEngine.h, (c) ATLAS Detector software
 
#ifndef TRKEXINTERFACES_INAVIGATIONENGINE_H
#define TRKEXINTERFACES_INAVIGATIONENGINE_H
 
// Gaudi
#include "GaudiKernel/IAlgTool.h"
// Trk
#include "TrkExUtils/ExtrapolationCell.h"
#include "TrkParameters/TrackParameters.h"
#include "TrkNeutralParameters/NeutralParameters.h"
#include "CxxUtils/checker_macros.h" 
namespace Trk {
 
  class TrackingGeometry;
  
  static const InterfaceID IID_INavigationEngine("INavigationEngine", 1, 0);
  
  typedef ExtrapolationCell<TrackParameters>   ExCellCharged;
  typedef ExtrapolationCell<NeutralParameters> ExCellNeutral;
  
  
  class INavigationEngine : virtual public IAlgTool {
 
    public:
     
      virtual ~INavigationEngine(){}

      static const InterfaceID& interfaceID() { return IID_INavigationEngine; }

      virtual ExtrapolationCode resolveBoundary(ExCellCharged& ecCell, PropDirection dir=alongMomentum) const = 0;                                                                                         

      virtual ExtrapolationCode resolveBoundary(ExCellNeutral& enCell, PropDirection dir=alongMomentum) const = 0;

      virtual ExtrapolationCode resolvePosition(ExCellCharged& ecCell, PropDirection dir=alongMomentum, bool noLoop=false) const = 0;                                                                                         

      virtual ExtrapolationCode resolvePosition(ExCellNeutral& enCell, PropDirection dir=alongMomentum, bool noLoop=false) const = 0;

      virtual const TrackingGeometry& trackingGeometry() const = 0;
       
    protected:
      std::string m_sopPrefix;            
      std::string m_sopPostfix;           
 
  };
      
 
} // end of namespace
 
#endif // TRKEXINTERFACES_INAVIGATIONENGINE_H