EmulatedME0Segment.h

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#ifndef DataFormats_MuonReco_EmulatedME0Segment_h
#define DataFormats_MuonReco_EmulatedME0Segment_h

#include <DataFormats/TrackingRecHit/interface/RecSegment.h>

#include <iosfwd>

class EmulatedME0Segment : public RecSegment {
public:
  EmulatedME0Segment() : theOrigin(0, 0, 0), theLocalDirection(0, 0, 0), theCovMatrix(4, 0), theChi2(0.) {}

  EmulatedME0Segment(const LocalPoint& origin,
                     const LocalVector& direction,
                     const AlgebraicSymMatrix& errors,
                     const double chi2);

  ~EmulatedME0Segment() override;

  //--- Base class interface
  EmulatedME0Segment* clone() const override { return new EmulatedME0Segment(*this); }

  LocalPoint localPosition() const override { return theOrigin; }
  LocalError localPositionError() const override;

  LocalVector localDirection() const override { return theLocalDirection; }
  LocalError localDirectionError() const override;

  AlgebraicVector parameters() const override;

  AlgebraicSymMatrix parametersError() const override { return theCovMatrix; }

  AlgebraicMatrix projectionMatrix() const override;

  std::vector<const TrackingRecHit*> recHits() const override { return std::vector<const TrackingRecHit*>(); }

  std::vector<TrackingRecHit*> recHits() override { return std::vector<TrackingRecHit*>(); }

  double chi2() const override { return theChi2; }

  int dimension() const override { return 4; }

  int degreesOfFreedom() const override { return -1; }  //Maybe  change later?

  //--- Extension of the interface

  int nRecHits() const { return 0; }  //theME0RecHits.size(); }

  void print() const;

private:
  //std::vector<ME0RecHit2D> theME0RecHits;
  //  CAVEAT: these "Local" paramaters will in fact be filled by global coordinates
  LocalPoint theOrigin;             // in chamber frame - the GeomDet local coordinate system
  LocalVector theLocalDirection;    // in chamber frame - the GeomDet local coordinate system
  AlgebraicSymMatrix theCovMatrix;  // the covariance matrix
  double theChi2;
};

std::ostream& operator<<(std::ostream& os, const EmulatedME0Segment& seg);

#endif  // ME0RecHit_EmulatedME0Segment_h