TrackFitterSimpleChiSquarePads.h

#ifndef TRACK_FITTER_SIMPLE_CHI_SQUARE_PADS_H
#define TRACK_FITTER_SIMPLE_CHI_SQUARE_PADS_H

#include <string>
#include <marlin/StringParameters.h>
#include <EVENT/LCRunHeader.h>
#include <EVENT/Track.h>
#include <IMPL/TrackImpl.h>
#include <EVENT/TrackerHit.h>
#include "TrackFitterSimpleChiSquare.h"

namespace gear
{
class TPCParameters;
class PadRowLayout2D;
}//namespace gear

namespace marlintpc
{
class TrackFitterSimpleChiSquarePads : public TrackFitterSimpleChiSquare
{
    public:

        TrackFitterSimpleChiSquarePads(gear::TPCParameters const *gearTPCParameters,
                                       double transDefocussing, double longDefocussing,
                                       double transDiffusion, double longDiffusion);

        virtual ~TrackFitterSimpleChiSquarePads() {}

        static TrackFitterBase * getInstance(LCParameters const * parameters);

        virtual std::string getRevision() const;

        virtual unsigned char getFitterType() const;


        virtual DoubleVec calculateResiduals(EVENT::Track const * testTrack,
                                             unsigned int testHitNumber,
                                             EVENT::Track const * referenceTrack = NULL) const;

        virtual DoubleVec calculateResiduals(EVENT::TrackerHit const * testHit,
                                             EVENT::Track const * trackWithoutTestHit) const;

        virtual IMPL::TrackImpl *fitTrack(EVENT::Track const * seedTrack) const;


    protected:

        gear::TPCParameters const *_TPCParameters;

        gear::PadRowLayout2D const * _padLayout;

        int _padLayoutType;

        void  initialiseGEARGeometry(gear::TPCParameters const *gearTPCParameters);

        //  double distanceOnCircle(double phi1, double phi2) const;

    private:
        static TrackFitterSimpleChiSquarePads * _theSimpleChiSquarePadsFitter;
};

}// namespace marlintpc

#endif // TRACK_FITTER_BASE_H