ForwardMeasurementEstimator Class Reference

#include <ForwardMeasurementEstimator.h>

Inheritance diagram for ForwardMeasurementEstimator:

List of all members.

Public Member Functions
virtual ForwardMeasurementEstimator *	clone () const
virtual std::pair< bool, double >	estimate (const TrajectoryStateOnSurface &ts, const TransientTrackingRecHit &hit) const
virtual bool	estimate (const TrajectoryStateOnSurface &ts, const BoundPlane &plane) const
virtual std::pair< bool, double >	estimate (const GlobalPoint &vprim, const TrajectoryStateOnSurface &ts, GlobalPoint &gp) const
virtual std::pair< bool, double >	estimate (const TrajectoryStateOnSurface &ts, GlobalPoint &gp) const
	ForwardMeasurementEstimator (float phiMin, float phiMax, float rMin, float rMax)
	ForwardMeasurementEstimator ()
MeasurementEstimator::Local2DVector	maximalLocalDisplacement (const TrajectoryStateOnSurface &ts, const BoundPlane &plane) const
void	setPhiRange (float dummyphiMin, float dummyphiMax)
void	setRRange (float rmin, float rmax)
void	setRRangeI (float rmin, float rmax)
Private Attributes
float	thePhiMax
float	thePhiMin
float	theRMax
float	theRMaxI
float	theRMin
float	theRMinI

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Detailed Description

Description: Class defining the search area in the forward disks in the pixel match, ported from ORCA

Implementation: <Notes on="" implementation>="">

Description: MeasurementEstimator for Pixel Endcap, ported from ORCA

Implementation: <Notes on="" implementation>="">

Definition at line 27 of file ForwardMeasurementEstimator.h.

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Constructor & Destructor Documentation

ForwardMeasurementEstimator::ForwardMeasurementEstimator

(

)

[inline]

Definition at line 32 of file ForwardMeasurementEstimator.h.

Referenced by clone().

     {}

ForwardMeasurementEstimator::ForwardMeasurementEstimator	(	float	phiMin,
		float	phiMax,
		float	rMin,
		float	rMax
	)		[inline]

Definition at line 34 of file ForwardMeasurementEstimator.h.

     : thePhiMin(phiMin), thePhiMax( phiMax), theRMin(rMin), theRMax(rMax)
     {}

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Member Function Documentation

virtual ForwardMeasurementEstimator* ForwardMeasurementEstimator::clone

(

void

)

const [inline, virtual]

Implements MeasurementEstimator.

Definition at line 51 of file ForwardMeasurementEstimator.h.

References ForwardMeasurementEstimator().

     { return new ForwardMeasurementEstimator(*this) ; }

std::pair< bool, double > ForwardMeasurementEstimator::estimate	(	const TrajectoryStateOnSurface &	ts,
		const TransientTrackingRecHit &	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 27 of file ForwardMeasurementEstimator.cc.

References TransientTrackingRecHit::det(), TrackingRecHit::localPosition(), GeomDet::surface(), and Surface::toGlobal().

                                                                                                        {
  LocalPoint lp = hit.localPosition();
  GlobalPoint gp = hit.det()->surface().toGlobal( lp);
  return estimate(ts,gp);
}

std::pair< bool, double > ForwardMeasurementEstimator::estimate	(	const TrajectoryStateOnSurface &	ts,
		GlobalPoint &	gp
	)		const [virtual]

Definition at line 34 of file ForwardMeasurementEstimator.cc.

References abs, TrajectoryStateOnSurface::globalParameters(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), pi, GlobalTrajectoryParameters::position(), thePhiMax, thePhiMin, theRMax, theRMaxI, theRMin, theRMinI, and PV3DBase< T, PVType, FrameType >::z().

                                                                                                                     {

  float tsR = ts.globalParameters().position().perp();
  float tsPhi = ts.globalParameters().position().phi();

  float rhPhi = gp.phi();
  float rhR = gp.perp();

  float myZ = gp.z();

  float rMin = theRMin;
  float rMax = theRMax;
  float myPhimin = thePhiMin;
  float myPhimax = thePhiMax;

  if(std::abs(myZ)> 70. &&  std::abs(myZ)<170.)
    {
      rMin = theRMinI;
      rMax = theRMaxI;
    }

  float phiDiff = tsPhi - rhPhi;
  if (phiDiff > pi) phiDiff -= twopi;
  if (phiDiff < -pi) phiDiff += twopi;

  float rDiff = tsR - rhR;

  if ( phiDiff < myPhimax && phiDiff > myPhimin &&
       rDiff < rMax && rDiff > rMin) {
    return std::pair<bool,double>(true,1.);
  } else {
    return std::pair<bool,double>(false,0.);
  }
}

bool ForwardMeasurementEstimator::estimate	(	const TrajectoryStateOnSurface &	ts,
		const BoundPlane &	plane
	)		const [virtual]

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

Implements MeasurementEstimator.

Definition at line 106 of file ForwardMeasurementEstimator.cc.

References abs, funct::false, TrajectoryStateOnSurface::globalParameters(), GlobalTrajectoryParameters::position(), rangesIntersect(), and funct::true.

 {
  typedef std::pair<float,float> Range ;

  GlobalPoint trajPos(ts.globalParameters().position());
  GlobalDetRangeRPhi detRange(plane);

  float r1 = 0.;
  float r2 = 40.;

  Range trajRRange(trajPos.perp() - r1, trajPos.perp() + r2);
  Range trajPhiRange(trajPos.phi() - std::abs(thePhiMin), trajPos.phi() + std::abs(thePhiMax));

  if(rangesIntersect(trajRRange, detRange.rRange()) &&
     rangesIntersect(trajPhiRange, detRange.phiRange(), PhiLess()))
   { return true ; }
  else
   { return false ; }
}

std::pair< bool, double > ForwardMeasurementEstimator::estimate	(	const GlobalPoint &	vprim,
		const TrajectoryStateOnSurface &	ts,
		GlobalPoint &	gp
	)		const [virtual]

Definition at line 70 of file ForwardMeasurementEstimator.cc.

References abs, TrajectoryStateOnSurface::globalParameters(), normalized_phi(), PV3DBase< T, PVType, FrameType >::perp(), PV3DBase< T, PVType, FrameType >::phi(), GlobalTrajectoryParameters::position(), and PV3DBase< T, PVType, FrameType >::z().

 {
  GlobalVector ts = absolute_ts.globalParameters().position() - vprim ;
  GlobalVector gp = absolute_gp - vprim ;

  float tsR = ts.perp();
  float tsPhi = ts.phi();

  float rhPhi = gp.phi();
  float rhR = gp.perp();

  float myZ = gp.z();

  float rMin = theRMin;
  float rMax = theRMax;
  float myPhimin = thePhiMin;
  float myPhimax = thePhiMax;

  if(std::abs(myZ)> 70. &&  std::abs(myZ)<170.)
    {
      rMin = theRMinI;
      rMax = theRMaxI;
    }

  float phiDiff = normalized_phi(rhPhi - tsPhi) ;
  float rDiff = rhR - tsR;

  if ( phiDiff < myPhimax && phiDiff > myPhimin && rDiff < rMax && rDiff > rMin)
   { return std::pair<bool,double>(true,1.) ; }
  else
   { return std::pair<bool,double>(false,0.) ; }
}

MeasurementEstimator::Local2DVector ForwardMeasurementEstimator::maximalLocalDisplacement	(	const TrajectoryStateOnSurface &	ts,
		const BoundPlane &	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 BoundPlane which is entirely outside of the compatibility region defined by maximalLocalDisplacement().

Reimplemented from MeasurementEstimator.

Definition at line 129 of file ForwardMeasurementEstimator.cc.

References TrajectoryStateOnSurface::hasError(), asciidump::le, TrajectoryStateOnSurface::localError(), LocalTrajectoryError::positionError(), mathSSE::sqrt(), LocalError::xx(), and LocalError::yy().

 {
  float nSigmaCut = 3.;
  if ( ts.hasError())
   {
    LocalError le = ts.localError().positionError();
    return Local2DVector( sqrt(le.xx())*nSigmaCut, sqrt(le.yy())*nSigmaCut);
   }
  else
    return Local2DVector(999999,999999) ;
 }

void ForwardMeasurementEstimator::setPhiRange	(	float	dummyphiMin,
		float	dummyphiMax
	)		[inline]

Definition at line 38 of file ForwardMeasurementEstimator.h.

References thePhiMax, and thePhiMin.

     { thePhiMin = dummyphiMin ; thePhiMax = dummyphiMax ; }

void ForwardMeasurementEstimator::setRRange	(	float	rmin,
		float	rmax
	)		[inline]

Definition at line 40 of file ForwardMeasurementEstimator.h.

References theRMax, and theRMin.

     { theRMin = rmin ; theRMax = rmax ; }

void ForwardMeasurementEstimator::setRRangeI	(	float	rmin,
		float	rmax
	)		[inline]

Definition at line 42 of file ForwardMeasurementEstimator.h.

References theRMaxI, and theRMinI.

     { theRMinI = rmin ; theRMaxI = rmax ; }

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Member Data Documentation

float ForwardMeasurementEstimator::thePhiMax [private]

Definition at line 60 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setPhiRange().

float ForwardMeasurementEstimator::thePhiMin [private]

Definition at line 59 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setPhiRange().

float ForwardMeasurementEstimator::theRMax [private]

Definition at line 62 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setRRange().

float ForwardMeasurementEstimator::theRMaxI [private]

Definition at line 64 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setRRangeI().

float ForwardMeasurementEstimator::theRMin [private]

Definition at line 61 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setRRange().

float ForwardMeasurementEstimator::theRMinI [private]

Definition at line 63 of file ForwardMeasurementEstimator.h.

Referenced by estimate(), and setRRangeI().