TrackQualityTools Class Reference

Tools to apply post corrections to a track after finding. More...

#include <TrackQualityTools.h>

Public Member Functions
	TrackQualityTools ()=delete
	Static class only.
	TrackQualityTools (const TrackQualityTools &copy)=delete
	Static class only.
TrackQualityTools &	operator= (const TrackQualityTools &)=delete
	Static class only.

Static Public Member Functions
static void	normalizeHitsAndResetTrajectory (CDCTrack &track)
	Update all hits to have a positive perpS, a taken flag and no background flag Also set the trajectory to start from the first hit position and point towards the second hit.
static void	removeHitsAfterCDCWall (CDCTrack &track, double outerCylindricalRFactor=1.1)
	Remove all hits which can not belong to the track, as the particle can not exit and enter the CDC again. More...
static void	removeHitsIfSmall (CDCTrack &track, unsigned int minimalHits=7)
	Delete a track fully of the number of hits is below minimalHits.
static void	removeHitsAfterLayerBreak (CDCTrack &track, double m_maximumArcLength2DDistance=10)
	Delete all hits after a large layer break. More...
static void	removeHitsAfterLayerBreak2 (CDCTrack &track)
	Delete all hits after a large layer break. More...
static void	removeHitsInTheBeginningIfAngleLarge (CDCTrack &track, double maximalAngle=0.7)
	If the angle between two following hits is larger than maximalAngle, delete all hits before (!!) the second hit.
static void	removeHitsIfOnlyOneSuperLayer (CDCTrack &track)
	Remove the whole track if it only consists of one superlayer.
static void	removeHitsOnTheWrongSide (CDCTrack &track)
	Remove all hits that are on the wrong side of the detector (so to say: "beyond the IP").
static void	removeArcLength2DHoles (CDCTrack &track, double m_maximumArcLength2DDistance=10)
	Remove all hits that come after a large hole in the two dimensional arc length.
static void	splitSecondHalfOfTrack (CDCTrack &track, std::vector< CDCTrack > &tracks)
	Trasan did output curlers in split two halves - this method can be used to mimic this. More...
static void	moveToNextAxialLayer (CDCTrack &track)
	Delete hits of the first superlayer if it is a stereo one (fitting does not work very well when starting with a stereo hit).

Detailed Description

Tools to apply post corrections to a track after finding.

"Removing" of hits means always to mark then as assigned. The deletion has to be done later.

Definition at line 35 of file TrackQualityTools.h.

Member Function Documentation

removeHitsAfterCDCWall()

void removeHitsAfterCDCWall ( CDCTrack &  track, double  outerCylindricalRFactor = 1.1  )

static

Remove all hits which can not belong to the track, as the particle can not exit and enter the CDC again.

The radius of the CDC can be "scaled" with the given factor. Works not very good.

Definition at line 118 of file TrackQualityTools.cc.

{
  const CDCTrajectory2D& trajectory2D = track.getStartTrajectory3D().getTrajectory2D();
  const double radius = trajectory2D.getLocalCircle()->absRadius();
 
  // Curler are allowed to have hits on both arms
  if (trajectory2D.isCurler(outerCylindricalRFactor)) {
    return;
  }
 
  const Vector2D& outerExitWithFactor = trajectory2D.getOuterExit(outerCylindricalRFactor);
 
  double arcLength2DOfExitWithFactor = trajectory2D.calcArcLength2D(outerExitWithFactor);
  if (arcLength2DOfExitWithFactor < 0) {
    arcLength2DOfExitWithFactor += 2 * TMath::Pi() * radius;
  }
  bool removeAfterThis = false;
 
  for (const CDCRecoHit3D& recoHit : track) {
    if (removeAfterThis) {
      recoHit.getWireHit().getAutomatonCell().setAssignedFlag();
      continue;
    }
 
    double currentArcLength2D = recoHit.getArcLength2D();
    if (currentArcLength2D < 0) {
      currentArcLength2D += 2 * TMath::Pi() * radius;
    }
 
    if (currentArcLength2D > arcLength2DOfExitWithFactor) {
      recoHit.getWireHit().getAutomatonCell().setAssignedFlag();
      removeAfterThis = true;
    }
  }
}

removeHitsAfterLayerBreak()

void removeHitsAfterLayerBreak ( CDCTrack &  track, double  m_maximumArcLength2DDistance = 10  )

static

Delete all hits after a large layer break.

Works quite well for finding large "breaks" in the track. Implementation one (it is not sure which one is better in the moment.)

Definition at line 198 of file TrackQualityTools.cc.

removeHitsAfterLayerBreak2()

void removeHitsAfterLayerBreak2 ( CDCTrack &  track )

static

Delete all hits after a large layer break.

Works quite well for finding large "breaks" in the track. Implementation two (it is not sure which one is better in the moment.)

Definition at line 154 of file TrackQualityTools.cc.

splitSecondHalfOfTrack()

void splitSecondHalfOfTrack ( CDCTrack &  track, std::vector< CDCTrack > &  tracks  )

static

Trasan did output curlers in split two halves - this method can be used to mimic this.

The new track is automatically added to the list of tracks.

Definition at line 27 of file TrackQualityTools.cc.

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

• tracking/trackFindingCDC/processing/include/TrackQualityTools.h
• tracking/trackFindingCDC/processing/src/TrackQualityTools.cc