TrackFilterBFCalibND Class Reference

#include <TrackFilterBFCalibND.h>

Inheritance diagram for TrackFilterBFCalibND:

List of all members.

Public Member Functions
	TrackFilterBFCalibND ()
	~TrackFilterBFCalibND ()
virtual Bool_t	Pass (const TrackContext &) const
virtual void	Config (const AlgConfig &)
Private Member Functions
Bool_t	IsInCoverage (const TrackContext &trackContext) const
Private Attributes
Int_t	fNHitsInViewMin
Int_t	fEndPlaneMax
Int_t	fNPlanesMin
Float_t	fEdgeDistanceMin
PlaneOutline	fOutline

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Detailed Description

Filter that selects only tracks useful for calibrating ND b-field. Requires minimum number of planes, entire track goes through "partial coverage" area and ends in the detector.

Author:

Sergei avva@fnal.gov

Definition at line 22 of file TrackFilterBFCalibND.h.

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Constructor & Destructor Documentation

TrackFilterBFCalibND::TrackFilterBFCalibND (   )

ctor Definition at line 41 of file TrackFilterBFCalibND.cxx. : fNHitsInViewMin(5), fEndPlaneMax(115), fNPlanesMin(20), fEdgeDistanceMin(0.25), fOutline() { TracerSA trace("TrackFilterBFCalibND::TrackFilterBFCalibND()"); }

TrackFilterBFCalibND::~TrackFilterBFCalibND (   )

dtor Definition at line 54 of file TrackFilterBFCalibND.cxx. { TracerSA trace("TrackFilterBFCalibND::~TrackFilterBFCalibND()"); }

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Member Function Documentation

void TrackFilterBFCalibND::Config (  const AlgConfig &  ac  )  [virtual]

read configuration parameters from AlgConfig Implements TrackFilter. Definition at line 140 of file TrackFilterBFCalibND.cxx. References fEdgeDistanceMin, fEndPlaneMax, fNHitsInViewMin, fNPlanesMin, Registry::GetDouble(), Registry::GetInt(), and Registry::KeyExists(). { TracerSA trace("TrackFilterBFCalibND::Config(const AlgConfig&)"); if ( ac.KeyExists("NHitsInViewMin") ) { fNHitsInViewMin = ac.GetInt("NHitsInViewMin"); } if ( ac.KeyExists("FilterBFCalibNDEndPlaneMax") ) { fEndPlaneMax = ac.GetInt("FilterBFCalibNDEndPlaneMax"); } if ( ac.KeyExists("FilterBFCalibNDNPlanesMin") ) { fNPlanesMin = ac.GetInt("FilterBFCalibNDNPlanesMin"); } if ( ac.KeyExists("FilterBFCalibNDEdgeDistanceMin") ) { fEdgeDistanceMin = ac.GetDouble("FilterBFCalibNDEdgeDistanceMin"); } }

Bool_t TrackFilterBFCalibND::IsInCoverage (  const TrackContext &  trackContext  )  const [private]

part of TrackFilterBFCalibND::Pass implementation Definition at line 96 of file TrackFilterBFCalibND.cxx. References PlaneOutline::DistanceToEdge(), fOutline, TrackContext::GetBegPlane(), VldContext::GetDetector(), TrackContext::GetEndPlane(), PlexPlaneId::GetPlaneCoverage(), PlexPlaneId::GetPlaneView(), TrackContext::GetU(), TrackContext::GetV(), TrackContext::GetVldContext(), PlaneOutline::IsInside(), and UgliGeomHandle::uv2xy(). Referenced by Pass(). { TracerSA trace("TrackFilterBFCalibND::IsInCoverage(const TrackContext&)"); Int_t beg = trackContext.GetBegPlane(); Int_t end = trackContext.GetEndPlane(); VldContext vldc = trackContext.GetVldContext(); Detector::Detector_t detector = vldc.GetDetector(); UgliGeomHandle ugh(vldc); Float_t x(0.), y(0.); Float_t u(0.), v(0.); Float_t distance(0.), xdistance(0.), ydistance(0.); for ( Int_t i = beg; i <= end; ++i) { PlexPlaneId planeId(detector, i); u = trackContext.GetU(i); v = trackContext.GetV(i); // skip test if u or v have not been set by the tracker/fitter // (their default values then are -99999) or if look obviously // wrong if ( fabs(u) > 10. || fabs(v) > 10. ) continue; ugh.uv2xy(u, v, x, y); // fail if track position is outside of "PartialCoverage" area if ( ! fOutline.IsInside(x, y, planeId.GetPlaneView(), PlaneCoverage::kNearPartial) ) return kFALSE; // fail if distance to edge is less than allowed fOutline.DistanceToEdge(x, y, planeId.GetPlaneView(), planeId.GetPlaneCoverage(), distance, xdistance, ydistance); if ( distance < fEdgeDistanceMin ) return kFALSE; } return kTRUE; }

Bool_t TrackFilterBFCalibND::Pass (  const TrackContext &  trackContext  )  const [virtual]

Pass method checks if the track passes cuts used to select good stopping tracks to claibrate ND B-field. If any of the cuts fail this method "short circuits" and returns false Implements TrackFilter. Definition at line 64 of file TrackFilterBFCalibND.cxx. References TrackContext::GetBegPlane(), TrackContext::GetEndPlane(), TrackContext::GetNTrackPlaneU(), TrackContext::GetNTrackPlaneV(), and IsInCoverage(). { TracerSA trace("TrackFilterBFCalibND::Pass(const TrackContext&)"); // check if passes #hits cut in both views if ( trackContext.GetNTrackPlaneU() < fNHitsInViewMin ) return kFALSE; if ( trackContext.GetNTrackPlaneV() < fNHitsInViewMin ) return kFALSE; Int_t beg = trackContext.GetBegPlane(); Int_t end = trackContext.GetEndPlane(); // beam track cut if ( beg > end ) return kFALSE; // EndPlane cut if ( end > fEndPlaneMax ) return kFALSE; // track length cut if ( (end-beg+1) < fNPlanesMin ) return kFALSE; // track is within partial coverage area in the ND // (over its whole length) if ( ! IsInCoverage(trackContext) ) return kFALSE; return kTRUE; }

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Member Data Documentation

Float_t TrackFilterBFCalibND::fEdgeDistanceMin [private]

min distance to the edge of ND partial coverage area (as given by PlaneOutline) Definition at line 61 of file TrackFilterBFCalibND.h. Referenced by Config().

Int_t TrackFilterBFCalibND::fEndPlaneMax [private]

max end plane (to select stopping tracks) Definition at line 50 of file TrackFilterBFCalibND.h. Referenced by Config().

Int_t TrackFilterBFCalibND::fNHitsInViewMin [private]

min # of hit planes per view Definition at line 45 of file TrackFilterBFCalibND.h. Referenced by Config().

Int_t TrackFilterBFCalibND::fNPlanesMin [private]

min acceptable track length in #planes Definition at line 55 of file TrackFilterBFCalibND.h. Referenced by Config().

PlaneOutline TrackFilterBFCalibND::fOutline [private]

PlaneOutline calculates distance from a given point to the detector edges Definition at line 67 of file TrackFilterBFCalibND.h. Referenced by IsInCoverage().

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

• TrackFilterBFCalibND.h
• TrackFilterBFCalibND.cxx

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