#include <ConversionBarrelEstimator.h>

Inheritance diagram for ConversionBarrelEstimator:

Public Member Functions
virtual ConversionBarrelEstimator *	clone () const

	ConversionBarrelEstimator ()

	ConversionBarrelEstimator (float phiRangeMin, float phiRangeMax, float zRangeMin, float zRangeMax, double nSigma=3.)

virtual std::pair< bool, double >	estimate (const TrajectoryStateOnSurface &ts, const TrackingRecHit &hit) const

virtual bool	estimate (const TrajectoryStateOnSurface &ts, const Plane &plane) const

virtual Local2DVector	maximalLocalDisplacement (const TrajectoryStateOnSurface &ts, const Plane &plane) const

double	nSigmaCut () const

Public Member Functions inherited from MeasurementEstimator
virtual bool	preFilter (const TrajectoryStateOnSurface &, OpaquePayload const &) const

virtual	~MeasurementEstimator ()

Private Attributes
double	theNSigma

float	thePhiRangeMax

float	thePhiRangeMin

float	theZRangeMax

float	theZRangeMin

Additional Inherited Members
Public Types inherited from MeasurementEstimator
typedef std::pair< bool, double >	HitReturnType

typedef Vector2DBase< float, LocalTag >	Local2DVector

typedef bool	SurfaceReturnType

Detailed Description

Defines the search area in the barrel

Author: Nancy Marinelli, U. of Notre Dame, US

Definition at line 19 of file ConversionBarrelEstimator.h.

Constructor & Destructor Documentation

ConversionBarrelEstimator::ConversionBarrelEstimator ( )

inline

Definition at line 22 of file ConversionBarrelEstimator.h.

Referenced by clone().

22 {};

ConversionBarrelEstimator::ConversionBarrelEstimator	(	float	phiRangeMin,
		float	phiRangeMax,
		float	zRangeMin,
		float	zRangeMax,
		double	nSigma = `3.`
	)

inline

Definition at line 23 of file ConversionBarrelEstimator.h.

                                                                                         : 
                            thePhiRangeMin( phiRangeMin), thePhiRangeMax( phiRangeMax),
                            theZRangeMin( zRangeMin), theZRangeMax( zRangeMax), theNSigma(nSigma) {
     //    std::cout << " ConversionBarrelEstimator CTOR " << std::endl;
 }

Member Function Documentation

virtual ConversionBarrelEstimator* ConversionBarrelEstimator::clone ( void ) const

inlinevirtual

Implements MeasurementEstimator.

Definition at line 35 of file ConversionBarrelEstimator.h.

References ConversionBarrelEstimator().

                                                    {
     return new ConversionBarrelEstimator(*this);
   } 

std::pair< bool, double > ConversionBarrelEstimator::estimate	(	const TrajectoryStateOnSurface &	ts,
		const TrackingRecHit &	hit
	)		const

virtual

Returns pair( true, value) if the TrajectoryStateOnSurface is compatible with the RecHit, and pair( false, value) if it is not compatible. The TrajectoryStateOnSurface must be on the same Surface as the RecHit. For an estimator where there is no value computed, e.g. fixed window estimator, only the first(bool) part is of interest.

Implements MeasurementEstimator.

Definition at line 12 of file ConversionBarrelEstimator.cc.

References TrajectoryStateOnSurface::globalParameters(), TrackingRecHit::globalPosition(), TrackingRecHit::localPositionError(), PV3DBase< T, PVType, FrameType >::phi(), pi, GlobalTrajectoryParameters::position(), query::result, mathSSE::sqrt(), thePhiRangeMin, theZRangeMax, LocalError::yy(), and PV3DBase< T, PVType, FrameType >::z().

                                                                  {
   std::pair<bool,double> result;
   
   //std::cout << "  ConversionBarrelEstimator::estimate( const TrajectoryStateOnSurface& ts, const TransientTrackingRecHit& hit) " << std::endl;
  
   float tsPhi = ts.globalParameters().position().phi();
   GlobalPoint gp = hit.globalPosition();
   float rhPhi = gp.phi();
   
   // allow a z fudge of 2 sigma
   float dz = 2. * sqrt(hit.localPositionError().yy()) ;
   float zDiff = ts.globalParameters().position().z() - gp.z(); 
   float phiDiff = tsPhi - rhPhi;
   if (phiDiff > pi) phiDiff -= twopi;
   if (phiDiff < -pi) phiDiff += twopi; 
   
   // add the errors on the window and the point in quadrature
   float zrange = sqrt(theZRangeMax*theZRangeMax + dz*dz);
   
   /*
   std::cout << "  BarrelEstimator ts local error " <<ts.localError().positionError()  << " hit local error " << hit.localPositionError() << std::endl; 
   std::cout << "  BarrelEstimator:  RecHit at " << gp << " phi " << rhPhi << " eta " << gp.eta() <<  std::endl;
   std::cout << "  BarrelEstimator:  ts at " << ts.globalParameters().position() << " phi " <<ts.globalParameters().position().phi() << " eta " << ts.globalParameters().position().eta()<<  std::endl;
   std::cout << "                    zrange = +/-" << zrange << ", zDiff = " << zDiff << std::endl;
   std::cout << "                    thePhiRangeMin = " << thePhiRangeMin << ", thePhiRangeMax = " << thePhiRangeMax << ", phiDiff = " << phiDiff << std::endl;
   */
 
   
   
   if ( phiDiff < thePhiRangeMax && phiDiff > thePhiRangeMin && 
        zDiff < zrange && zDiff > -zrange) {
     
     //    std::cout << "      estimator returns 1 with phiDiff " << thePhiRangeMin << " < " << phiDiff << " < "
     //    << thePhiRangeMax << " and zDiff " << zDiff << " < " << zrange << std::endl;
     // std::cout << " YES " << phiDiff << " " << zDiff << std::endl;
     // std::cout << "                  => RECHIT ACCEPTED " << std::endl;
     
     result.first=true;
     result.second=phiDiff;
   } else {
     
     //     std::cout << "      estimator returns NOT ACCEPTED  with phiDiff " << thePhiRangeMin << " < " << phiDiff << " < "
     //<< thePhiRangeMax << " and zDiff " << zDiff << " < " << theZRangeMax+dz << std::endl;
     
     result.first=false;
     result.second=0;
     
   }
   
   return result;
   
 }

virtual bool ConversionBarrelEstimator::estimate	(	const TrajectoryStateOnSurface &	ts,
		const Plane &	plane
	)		const

virtual

Returns true if the TrajectoryStateOnSurface is compatible with the Plane, false otherwise. The TrajectoryStateOnSurface must be on the plane.

Implements MeasurementEstimator.

MeasurementEstimator::Local2DVector ConversionBarrelEstimator::maximalLocalDisplacement	(	const TrajectoryStateOnSurface &	ts,
		const Plane &	plane
	)		const

virtual

Returns the size of the compatibility region around the local position of the TrajectoryStateOnSurface along the directions of local x and y axis. The TrajectoryStateOnSurface must be on the plane. This method allows to limit the search for compatible detectors or RecHits. The MeasurementEstimator should not return "true" for any RecHit or Plane which is entirely outside of the compatibility region defined by maximalLocalDisplacement().

Reimplemented from MeasurementEstimator.

Definition at line 99 of file ConversionBarrelEstimator.cc.

 {
   
 
   
   /* 
   if ( ts.hasError() ) {
     LocalError le = ts.localError().positionError();
     std::cout << "  ConversionBarrelEstimator::maximalLocalDisplacent local error " << sqrt(le.xx()) << " " << sqrt(le.yy()) << " nSigma " << nSigmaCut() << " sqrt(le.xx())*nSigmaCut() " << sqrt(le.xx())*nSigmaCut()  << "  sqrt(le.yy())*nSigmaCut() " <<  sqrt(le.yy())*nSigmaCut() << std::endl;
     return Local2DVector( sqrt(le.xx())*nSigmaCut(), sqrt(le.yy())*nSigmaCut());
   }
 
   else return Local2DVector(9999,9999);
   */
 return Local2DVector(9999,9999);
 
 }