/data/refman/pasoursint/CMSSW_4_2_9_HLT1_bphpatch4/src/RecoVertex/GhostTrackFitter/interface/SequentialGhostTrackFitter.h

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#ifndef RecoBTag_SequentialGhostTrackFitter_h
#define RecoBTag_SequentialGhostTrackFitter_h

#include <vector>

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

namespace reco {

class GhostTrackPrediction;
class GhostTrackState;

class SequentialGhostTrackFitter : public GhostTrackFitter::FitterImpl {
    public:
        SequentialGhostTrackFitter();
        ~SequentialGhostTrackFitter() {}

        GhostTrackPrediction fit(
                        const GhostTrackFitter::PredictionUpdater &updater,
                        const GhostTrackPrediction &prior,
                        std::vector<GhostTrackState> &states,
                        double &ndof, double &chi2);

    protected:
        virtual bool stable(const GhostTrackPrediction &before,
                            const GhostTrackPrediction &after) const;
        virtual void reset() {}
        virtual void postFit(
                        const GhostTrackFitter::PredictionUpdater &updater,
                        const GhostTrackPrediction &pred,
                        std::vector<GhostTrackState> &states) {}

    private:
        virtual FitterImpl *clone() const
        { return new SequentialGhostTrackFitter(*this); }

        unsigned int    maxIteration;
        double          minDeltaR;
        double          minDistance;
        double          weightThreshold;
};

}

#endif // RecoBTag_SequentialGhostTrackFitter_h