/data/refman/pasoursint/CMSSW_5_3_3/src/TrackingTools/DetLayers/interface/DetLayer.h

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#ifndef DetLayers_DetLayer_h
#define DetLayers_DetLayer_h

#include "TrackingTools/DetLayers/interface/GeometricSearchDet.h"

#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "TrackingTools/DetLayers/interface/NavigableLayer.h"
#include "TrackingTools/DetLayers/interface/NavigationDirection.h"

#include <vector>

class DetLayer : public  virtual GeometricSearchDet {  
 public:

  typedef GeomDetEnumerators::SubDetector SubDetector;
  typedef GeomDetEnumerators::Location Location;

  DetLayer() : theNavigableLayer(0){};

  virtual ~DetLayer();

  // Extension of the interface 

  virtual SubDetector subDetector() const = 0;

  virtual Location location() const = 0;

  NavigableLayer* navigableLayer() const { return theNavigableLayer;}

  virtual void setNavigableLayer( NavigableLayer* nlp);

  virtual std::vector<const DetLayer*> 
  nextLayers( NavigationDirection direction) const;

  virtual std::vector<const DetLayer*> 
  nextLayers( const FreeTrajectoryState& fts, 
              PropagationDirection timeDirection) const;

  std::vector<const DetLayer*> 
  compatibleLayers( NavigationDirection direction ) const;

  std::vector<const DetLayer*> 
  compatibleLayers(const FreeTrajectoryState& fts, 
                   PropagationDirection timeDirection) const;


  std::vector<const DetLayer*> 
  compatibleLayers(const FreeTrajectoryState& fts, 
                   PropagationDirection timeDirection,
                   int& counter) const;

  
 private:
  NavigableLayer* theNavigableLayer;

};

#endif