JRECONSTRUCTION::JPointing Class Reference

Auxiliary class to compare fit results with respect to a reference direction (e.g. true muon). More...

#include <JEvtToolkit.hh>

Public Member Functions
	JPointing ()
	Default constructor.
	JPointing (const JVersor3D &dir)
	Constructor.
	JPointing (const JFit &fit)
	Constructor.
JVersor3D	getDirection () const
	Get direction.
double	getAngle (const JFit &fit) const
	Get angle between reference direction and fit result.
bool	operator() (const JFit &first, const JFit &second) const
	Comparison of fit results.
template<class T >
T	operator() (T __begin, T __end) const
	Select best fit result.

Protected Attributes
JVersor3D	dir

Detailed Description

Auxiliary class to compare fit results with respect to a reference direction (e.g. true muon).

The sort operation results in an ordered set of fit results with increasing angle between the reference direction and that of the fit results.

Definition at line 550 of file JReconstruction/JEvtToolkit.hh.

Constructor & Destructor Documentation

JPointing() [1/3]

JRECONSTRUCTION::JPointing::JPointing ( )

inline

Default constructor.

Definition at line 555 of file JReconstruction/JEvtToolkit.hh.

    {}

JPointing() [2/3]

JRECONSTRUCTION::JPointing::JPointing ( const JVersor3D & dir )

inline

Constructor.

Parameters

dir	reference direction

Definition at line 564 of file JReconstruction/JEvtToolkit.hh.

    {
      this->dir = dir;
    }

JPointing() [3/3]

JRECONSTRUCTION::JPointing::JPointing ( const JFit & fit )

inline

Constructor.

Parameters

fit

fit

Definition at line 575 of file JReconstruction/JEvtToolkit.hh.

    {
      this->dir = JRECONSTRUCTION::getDirection(fit);
    }

Member Function Documentation

getDirection()

JVersor3D JRECONSTRUCTION::JPointing::getDirection ( ) const

inline

Get direction.

Returns

direction

Definition at line 586 of file JReconstruction/JEvtToolkit.hh.

    {
      return dir;
    }

getAngle()

double JRECONSTRUCTION::JPointing::getAngle ( const JFit & fit ) const

inline

Get angle between reference direction and fit result.

Parameters

fit

fit

Returns

angle [deg]

Definition at line 598 of file JReconstruction/JEvtToolkit.hh.

    {
      const double dot = getDot(fit, dir);
 
      if      (dot >= +1.0)
        return   0.0;
      else if (dot <= -1.0)
        return 180.0;
      else
        return acos(dot) * 180.0 / JMATH::PI;
    }

operator()() [1/2]

bool JRECONSTRUCTION::JPointing::operator() ( const JFit & first, const JFit & second ) const

inline

Comparison of fit results.

Parameters

first	first fit
second	second fit

Returns

true if first fit better; else false

Definition at line 618 of file JReconstruction/JEvtToolkit.hh.

    {
      return getDot(first, dir) > getDot(second, dir);
    }

operator()() [2/2]

template<class T >

T JRECONSTRUCTION::JPointing::operator() ( T __begin, T __end ) const

inline

Select best fit result.

Parameters

__begin	begin of fit results
__end	end of fit results

Returns

best fit result

Definition at line 632 of file JReconstruction/JEvtToolkit.hh.

    {
      return std::min_element(__begin, __end, *this);
    }

Member Data Documentation

dir

JVersor3D JRECONSTRUCTION::JPointing::dir

protected

Definition at line 638 of file JReconstruction/JEvtToolkit.hh.

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The documentation for this class was generated from the following file:

• JReconstruction/JEvtToolkit.hh