RtRelationLookUp.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MUONCALIB_RTRELATIONLOOKUP_H
#define MUONCALIB_RTRELATIONLOOKUP_H
 
#include <climits>
#include <iostream>
 
 
#include "MdtCalibData/IRtRelation.h"
 
namespace MuonCalib {

 
    class RtRelationLookUp : public IRtRelation {
    public:
        explicit RtRelationLookUp(const ParVec &vec);
 
        virtual std::string name() const override final { return "RtRelationLookUp"; }

        virtual double radius(double t) const override final;

        virtual double driftVelocity(double t) const override final;
        virtual double driftAcceleration(double t) const override final;

        virtual double tLower() const override final;
        virtual double tUpper() const override final;
        virtual double tBinWidth() const override final;
        virtual unsigned nDoF() const override final; 
 
    private:
        int getBin(double t) const;
 
        // take offset due to m_t_min and binsize into account
        double getRadius(int bin) const { return par(bin + 2); }
        // returns best matching bin within rtRange
        int binInRtRange(double t) const;
 
        double m_t_min{0.};
        double m_bin_size{0.};
    };
 
 
 
}  // namespace MuonCalib
#endif