SimpleChiSquareResidualsFunction.h

#ifndef SIMPLE_CHI_SQUARE_RESIDUALS_FUNCTION_H
#define SIMPLE_CHI_SQUARE_RESIDUALS_FUNCTION_H 1

#include <Minuit2/FCNBase.h>
#include <EVENT/Track.h>
#include <TrackFitterSimpleChiSquare.h>

namespace marlintpc
{

class SimpleChiSquareResidualsFunction : public ROOT::Minuit2::FCNBase
{

    public:
        SimpleChiSquareResidualsFunction(const EVENT::Track * const t, TrackFitterSimpleChiSquare const * f,
                                         double zAnode);
        ~SimpleChiSquareResidualsFunction() {}
        virtual double Up() const
        {
            return _theErrorDef;
        }
        virtual double operator()(const std::vector<double>&) const;
        void SetErrorDef(double def)
        {
            _theErrorDef = def;
        }

    private:

        const EVENT::Track * const _track;
        TrackFitterSimpleChiSquare const * _fitter;
        double _theErrorDef;
        double _maxDriftDistance;
        double _zAnode;
};

}//namespace marlintpc

#endif //CHI_SQUARE_RESIDUALS_FUNCTION_H