CurvedPatRec.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MuonCalib_CurvedPatRecH
#define MuonCalib_CurvedPatRecH
 
//::::::::::::::::::::::::
//:: CLASS CurvedPatRec ::
//::::::::::::::::::::::::
 
 
#include <vector>
 
#include "CxxUtils/checker_macros.h"
#include "GeoPrimitives/GeoPrimitives.h"
#include "MdtCalibFitters/CurvedLine.h"
#include "MdtCalibFitters/MTStraightLine.h"
#include "MdtCalibFitters/StraightPatRec.h"
#include "MdtCalibInterfaces/IMdtPatRecFitter.h"
#include "MuonCalibEventBase/MuonCalibSegment.h"
 
namespace MuonCalib {
 
    class CurvedPatRec : public IMdtPatRecFitter {
    public:
        using MdtHitVec = MuonCalibSegment::MdtHitVec;
        using MdtHitPtr = MuonCalibSegment::MdtHitPtr;
 
        // Constructors //
        CurvedPatRec();
 
        CurvedPatRec(const double  road_width);
 
        // Methods //
        double roadWidth() const;
 
        // set-method //
        void setRoadWidth(const double  r_road_width);
        void setTimeOut(const double  time_out);
 
        // methods required by the base class "IMdtSegmentFitter" //
        bool fit(MuonCalibSegment& r_segment) const;
        bool fit(MuonCalibSegment& r_segment, HitSelection r_selection) const;
        bool fit(MuonCalibSegment& r_segment, HitSelection r_selection, CurvedLine& curved_track) const;
        void printLevel(int /*level*/){};
 
    private:
        // internal co-ordinate definition //
        //                      x3
        //                      ^
        //     o o o o o o      |
        //  ... o o o o o ...   o--> x2
        //     o o o o o o     x1
        //
 
        // settings //
        double m_road_width{0.5};  // road width to be used in pattern finding
        double m_time_out{10};     // time out for pattern recognition.
 
        // straight pattern recognition to get the approximate incidence angle //
 
        // auxiliary methods //
        Amg::Vector3D getHitPoint(const MdtHitPtr& hit, const MTStraightLine& straight_track) const;
        // transform the given hit into a hit point in
        // 3 dimensions using the given straight line
        // as helper
        std::vector<Amg::Vector3D> getHitPoints(const MdtHitVec& track_hits, const MTStraightLine& straight_track) const;
        // transform the track hits into hit points in
        // 3 dimensions using the given straight line
        // as helper
        std::vector<Amg::Vector3D> getHitPoints(const MdtHitVec& track_hits, const CurvedLine& curved_track) const;
        // transform the track hits into hit points in
        // 3 dimensions using the given curved line
        // as helper
    };
 
}  // namespace MuonCalib
 
#endif