Concrete estimator for the cosmic ray setup - estimates negative times on incoming arm. More...

#include <FlightTimeEstimator.h>

Inheritance diagram for CosmicRayFlightTimeEstimator:

Public Member Functions
	CosmicRayFlightTimeEstimator (TrackingUtilities::Vector3D triggerPoint=TrackingUtilities::Vector3D(0, 0, 0))
	Constructor also setting up the flight time lookup table.

double	getFlightTime2D (const TrackingUtilities::Vector2D &pos2D, double alpha, double beta=1) const override
	Flight time estimator for cosmic ray events.

Static Public Member Functions
static const FlightTimeEstimator &	instance (std::unique_ptr< FlightTimeEstimator > replacement=nullptr)
	Getter for the instance.

Private Attributes
TrackingUtilities::LookupTable< float >	m_halfPeriodAlphaFlightTimeFactor
	Lookup table for the sinc function.

TrackingUtilities::Vector3D	m_triggerPoint
	Trigger point of the cosmic ray setup.

Detailed Description

Concrete estimator for the cosmic ray setup - estimates negative times on incoming arm.

Definition at line 67 of file FlightTimeEstimator.h.

Constructor & Destructor Documentation

◆ CosmicRayFlightTimeEstimator()

CosmicRayFlightTimeEstimator ( TrackingUtilities::Vector3D triggerPoint = TrackingUtilities::Vector3D(0, 0, 0) )

explicit

Constructor also setting up the flight time lookup table.

Definition at line 58 of file FlightTimeEstimator.cc.

  : m_halfPeriodAlphaFlightTimeFactor(getHalfPeriodAlphaFlightTime,
                                      512,
                                      0,
                                      std::nextafter(M_PI, INFINITY))
  , m_triggerPoint(triggerPoint)
{
}

Member Function Documentation

◆ getFlightTime2D()

double getFlightTime2D	(	const TrackingUtilities::Vector2D &	pos2D,
		double	alpha,
		double	beta = 1 ) const

inlineoverridevirtual

Flight time estimator for cosmic ray events.

Reimplemented from FlightTimeEstimator.

Definition at line 74 of file FlightTimeEstimator.h.

      {
        TrackingUtilities::Vector2D relPos2D = pos2D - m_triggerPoint.xy();
        double deltaAlpha = pos2D.angleWith(relPos2D);
        alpha += deltaAlpha;
        double absAlpha = std::fabs(alpha);
        double directDist2D = relPos2D.cylindricalR();
        return directDist2D * m_halfPeriodAlphaFlightTimeFactor(absAlpha) / beta;
      }

◆ instance()

const FlightTimeEstimator & instance ( std::unique_ptr< FlightTimeEstimator > replacement = nullptr )

staticinherited

Getter for the instance.

Definition at line 22 of file FlightTimeEstimator.cc.

{
  static std::unique_ptr<FlightTimeEstimator> s_instance(new FlightTimeEstimator);
  if (replacement) {
    s_instance = std::move(replacement);
  }
  return *s_instance;
}

Member Data Documentation

◆ m_halfPeriodAlphaFlightTimeFactor

TrackingUtilities::LookupTable<float> m_halfPeriodAlphaFlightTimeFactor

private

Lookup table for the sinc function.

Definition at line 86 of file FlightTimeEstimator.h.

◆ m_triggerPoint

TrackingUtilities::Vector3D m_triggerPoint

private

Trigger point of the cosmic ray setup.

Definition at line 89 of file FlightTimeEstimator.h.

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

tracking/trackFindingCDC/eventdata/utils/include/FlightTimeEstimator.h
tracking/trackFindingCDC/eventdata/utils/src/FlightTimeEstimator.cc

Public Member Functions

Static Public Member Functions

Private Attributes