/data/refman/pasoursint/CMSSW_6_1_1/src/RecoVertex/GhostTrackFitter/interface/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