VertexGhostTrackState.h

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#ifndef RecoBTag_VertexGhostTrackState_h
#define RecoBTag_VertexGhostTrackState_h

#include <utility>

#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "DataFormats/GeometryCommonDetAlgo/interface/GlobalError.h"

#include "RecoVertex/GhostTrackFitter/interface/BasicGhostTrackState.h"

namespace reco {

class GhostTrackPrediction;

class VertexGhostTrackState : public BasicGhostTrackState {
    public:
    VertexGhostTrackState(const GlobalPoint &pos,
                          const CovarianceMatrix &cov) :
        position_(pos), covariance_(cov) {}

    GlobalPoint globalPosition() const { return position_; }
    GlobalError cartesianError() const { return covariance_; }
    CovarianceMatrix cartesianCovariance() const { return covariance_; }

    Vertex vertexStateOnGhostTrack(const GhostTrackPrediction &pred,
                                   bool withMeasurementError) const;
    Vertex vertexStateOnMeasurement(const GhostTrackPrediction &pred,
                                    bool withGhostTrackError) const;

    private:
    BasicGhostTrackState *clone() const
    { return new VertexGhostTrackState(*this); }

    GlobalPoint     position_;
    CovarianceMatrix    covariance_;
};

}

#endif // RecoBTag_VertexGhostTrackState_h