/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/FastSimulation/TrackingRecHitProducer/interface/GSRecHitMatcher.h

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#ifndef FastSimulation_TrackingRecHitProducer_GSRecHitMatcher_h
#define FastSimulation_TrackingRecHitProducer_GSRecHitMatcher_h

#include "DataFormats/TrackerRecHit2D/interface/SiTrackerGSRecHit2DCollection.h"
#include "DataFormats/TrackerRecHit2D/interface/SiTrackerGSMatchedRecHit2DCollection.h"
#include "DataFormats/GeometryVector/interface/LocalVector.h"

class GluedGeomDet;
class GeomDetUnit;
class GeomDet;

class GSRecHitMatcher {
 public:

  typedef std::pair<LocalPoint,LocalPoint>                   StripPosition; 

  GSRecHitMatcher() {}
  ~GSRecHitMatcher() {}

  SiTrackerGSMatchedRecHit2D * match( const SiTrackerGSRecHit2D *monoRH,
                                      const SiTrackerGSRecHit2D *stereoRH,
                                      const GluedGeomDet* gluedDet,
                                      LocalVector& trackdirection) const;
  
  
  StripPosition project(const GeomDetUnit *det,
                        const GluedGeomDet* glueddet,
                        const StripPosition& strip,
                        const LocalVector& trackdirection) const;
  
  SiTrackerGSMatchedRecHit2D * projectOnly( const SiTrackerGSRecHit2D *monoRH,
                                            const GeomDet * monoDet,
                                            const GluedGeomDet* gluedDet,
                                            LocalVector& ldir) const;
  
};

#endif