Kalman stepper implementation for the PXD CKF. More...

#include <PXDKalmanStepper.h>

Public Member Functions
double	kalmanStep (genfit::MeasuredStateOnPlane &measuredStateOnPlane, const CKFToPXDState &state)
	Do a kalman step of the mSoP to the measurement in the state. Returns the chi2.

double	calculateResidual (genfit::MeasuredStateOnPlane &measuredStateOnPlane, const CKFToPXDState &state)
	Calculate the residual between the mSoP and the measurement in the state.

Private Attributes
KalmanStepper< 2 >	m_kalmanStepper
	Implementation using the general kalman stepper.

Detailed Description

Kalman stepper implementation for the PXD CKF.

Definition at line 24 of file PXDKalmanStepper.h.

Member Function Documentation

◆ calculateResidual()

double calculateResidual	(	genfit::MeasuredStateOnPlane &	measuredStateOnPlane,
		const CKFToPXDState &	state
	)

Calculate the residual between the mSoP and the measurement in the state.

Definition at line 33 of file PXDKalmanStepper.cc.

{
  double residual = 0;
  for (const PXDRecoHit& pxdRecoHit : state.getRecoHits()) {
    const std::vector<genfit::MeasurementOnPlane*>& measurementsOnPlane = pxdRecoHit.constructMeasurementsOnPlane(
          measuredStateOnPlane);
 
    B2ASSERT("I expect exactly one measurement here", measurementsOnPlane.size() == 1);
    const genfit::MeasurementOnPlane* measurementOnPlane = measurementsOnPlane.front();
 
    residual += m_kalmanStepper.calculateResidual(measuredStateOnPlane, *measurementOnPlane);
 
    delete measurementOnPlane;
  }
  return residual;
}

◆ kalmanStep()

double kalmanStep	(	genfit::MeasuredStateOnPlane &	measuredStateOnPlane,
		const CKFToPXDState &	state
	)

Do a kalman step of the mSoP to the measurement in the state. Returns the chi2.

Definition at line 16 of file PXDKalmanStepper.cc.

{
  double chi2 = 0;
  for (const PXDRecoHit& pxdRecoHit : state.getRecoHits()) {
    const std::vector<genfit::MeasurementOnPlane*>& measurementsOnPlane = pxdRecoHit.constructMeasurementsOnPlane(
          measuredStateOnPlane);
 
    B2ASSERT("I expect exactly one measurement here", measurementsOnPlane.size() == 1);
    const genfit::MeasurementOnPlane* measurementOnPlane = measurementsOnPlane.front();
 
    chi2 += m_kalmanStepper.kalmanStep(measuredStateOnPlane, *measurementOnPlane);
 
    delete measurementOnPlane;
  }
  return chi2;
}

Member Data Documentation

◆ m_kalmanStepper

KalmanStepper<2> m_kalmanStepper

private

Implementation using the general kalman stepper.

Definition at line 34 of file PXDKalmanStepper.h.

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

tracking/ckf/pxd/utilities/include/PXDKalmanStepper.h
tracking/ckf/pxd/utilities/src/PXDKalmanStepper.cc