#include <StandAloneMuonSmoother.h>

Public Member Functions
MeasurementEstimator *	estimator () const
	access at the estimator More...

const Propagator *	propagator () const
	access at the propagator More...

SmoothingResult	smooth (const Trajectory &)
	Smoothes the trajectories. More...

TrajectorySmoother *	smoother () const
	access to the smoother More...

	StandAloneMuonSmoother (const edm::ParameterSet &par, const MuonServiceProxy *service)
	Constructor. More...

TrajectoryStateUpdator *	updator () const
	return the KFUpdator More...

virtual	~StandAloneMuonSmoother ()
	Destructor. More...

Private Types
typedef std::pair< bool, Trajectory >	SmoothingResult

Private Member Functions
void	renewTheSmoother ()

Private Attributes
double	theErrorRescaling

MeasurementEstimator *	theEstimator

double	theMaxChi2
	The max allowed chi2 to accept a rechit in the fit. More...

double	theNSigma

std::string	thePropagatorName

const MuonServiceProxy *	theService

TrajectorySmoother *	theSmoother

TrajectoryStateUpdator *	theUpdator

Detailed Description

Smooth a trajectory using the standard Kalman Filter smoother. This class contains the KFTrajectorySmoother and takes care to update the it whenever the propagator change.

Author: R. Bellan - INFN Torino ricca.nosp@m.rdo..nosp@m.bella.nosp@m.n@ce.nosp@m.rn.ch

Definition at line 26 of file StandAloneMuonSmoother.h.

Member Typedef Documentation

typedef std::pair<bool,Trajectory> StandAloneMuonSmoother::SmoothingResult

private

Definition at line 28 of file StandAloneMuonSmoother.h.

Constructor & Destructor Documentation

StandAloneMuonSmoother::StandAloneMuonSmoother	(	const edm::ParameterSet &	par,
		const MuonServiceProxy *	service
	)

Constructor.

Definition at line 25 of file StandAloneMuonSmoother.cc.

References Chi2MeasurementEstimatorESProducer_cfi::Chi2MeasurementEstimator, edm::ParameterSet::getParameter(), theErrorRescaling, theEstimator, theMaxChi2, theNSigma, thePropagatorName, theSmoother, and theUpdator.

                                                            :theService(service){
 
   // The max allowed chi2 to accept a rechit in the fit
   theMaxChi2 = par.getParameter<double>("MaxChi2");
   
   // The errors of the trajectory state are multiplied by nSigma 
   // to define acceptance of BoundPlane and maximalLocalDisplacement
   theNSigma = par.getParameter<double>("NumberOfSigma"); // default = 3.
   
   // The estimator: makes the decision wheter a measure is good or not
   // it isn't used by the updator which does the real fit. In fact, in principle,
   // a looser request onto the measure set can be requested 
   // (w.r.t. the request on the accept/reject measure in the fit)
   theEstimator = new Chi2MeasurementEstimator(theMaxChi2,theNSigma);
   
   theErrorRescaling = par.getParameter<double>("ErrorRescalingFactor");
   
   thePropagatorName = par.getParameter<string>("Propagator");
   
   theUpdator = new KFUpdator();
   
   // The Kalman smoother
   theSmoother = 0 ;
         
 }

StandAloneMuonSmoother::~StandAloneMuonSmoother ( )

virtual

Destructor.

Definition at line 52 of file StandAloneMuonSmoother.cc.

References theEstimator, theSmoother, and theUpdator.

                                                {
   if (theEstimator) delete theEstimator;
   if (theUpdator) delete theUpdator;
   if (theSmoother) delete theSmoother;
 }

Member Function Documentation

MeasurementEstimator* StandAloneMuonSmoother::estimator ( void ) const

inline

access at the estimator

Definition at line 49 of file StandAloneMuonSmoother.h.

References theEstimator.

Referenced by renewTheSmoother().

49 {return theEstimator;}

StandAloneMuonSmoother::theEstimator

MeasurementEstimator * theEstimator

Definition: StandAloneMuonSmoother.h:72

const Propagator * StandAloneMuonSmoother::propagator ( void ) const

access at the propagator

Definition at line 58 of file StandAloneMuonSmoother.cc.

References thePropagatorName, and theService.

Referenced by renewTheSmoother().

                                                           { 
   return &*theService->propagator(thePropagatorName); 
 }

void StandAloneMuonSmoother::renewTheSmoother ( )

private

Definition at line 62 of file StandAloneMuonSmoother.cc.

References estimator(), KFTrajectorySmootherESProducer_cfi::KFTrajectorySmoother, propagator(), theService, theSmoother, and updator().

Referenced by smooth().

                                              {
   if (theService->isTrackingComponentsRecordChanged()){
     if (theSmoother) delete theSmoother;
     theSmoother = new KFTrajectorySmoother(propagator(),
                        updator(),
                        estimator());
   }
   if (!theSmoother)
     theSmoother = new KFTrajectorySmoother(propagator(),
                        updator(),
                        estimator());
   
 }

StandAloneMuonSmoother::SmoothingResult StandAloneMuonSmoother::smooth ( const Trajectory & inputTrajectory )

Smoothes the trajectories.

Definition at line 76 of file StandAloneMuonSmoother.cc.

References LogTrace, metname, renewTheSmoother(), smoother(), and TrajectorySmoother::trajectories().

                                                                                                      {
   const string metname = "Muon|RecoMuon|StandAloneMuonSmoother";
   
   renewTheSmoother();
   
   vector<Trajectory> trajectoriesSM = smoother()->trajectories(inputTrajectory);
   
   if(!trajectoriesSM.size()){
     LogTrace(metname) << "No Track smoothed!";
     return SmoothingResult(false,inputTrajectory); 
   }
   
   Trajectory smoothed = trajectoriesSM.front(); 
   
   return SmoothingResult(true,smoothed); 
 }

TrajectorySmoother* StandAloneMuonSmoother::smoother ( ) const

inline

access to the smoother

Definition at line 52 of file StandAloneMuonSmoother.h.

References theSmoother.

Referenced by smooth().

52 {return theSmoother;}

StandAloneMuonSmoother::theSmoother

TrajectorySmoother * theSmoother

Definition: StandAloneMuonSmoother.h:80

TrajectoryStateUpdator* StandAloneMuonSmoother::updator ( ) const

inline

return the KFUpdator

Definition at line 43 of file StandAloneMuonSmoother.h.

References theUpdator.

Referenced by renewTheSmoother().

43 {return theUpdator;}

StandAloneMuonSmoother::theUpdator

TrajectoryStateUpdator * theUpdator

Definition: StandAloneMuonSmoother.h:76

Member Data Documentation

double StandAloneMuonSmoother::theErrorRescaling

private

Definition at line 74 of file StandAloneMuonSmoother.h.

Referenced by StandAloneMuonSmoother().

MeasurementEstimator* StandAloneMuonSmoother::theEstimator

private

The estimator: makes the decision wheter a measure is good or not it isn't used by the updator which does the real fit. In fact, in principle, a looser request onto the measure set can be requested (w.r.t. the request on the accept/reject measure in the fit)

Definition at line 72 of file StandAloneMuonSmoother.h.

Referenced by estimator(), StandAloneMuonSmoother(), and ~StandAloneMuonSmoother().

double StandAloneMuonSmoother::theMaxChi2

private

The max allowed chi2 to accept a rechit in the fit.

Definition at line 62 of file StandAloneMuonSmoother.h.

Referenced by StandAloneMuonSmoother().

double StandAloneMuonSmoother::theNSigma

private

The errors of the trajectory state are multiplied by nSigma to define acceptance of BoundPlane and maximalLocalDisplacement

Definition at line 66 of file StandAloneMuonSmoother.h.

Referenced by StandAloneMuonSmoother().