LowHitsAxialTrackUtil Struct Reference

Utility structure gathering heuristic functions used during the search for non-helix or low hit count tracks. More...

#include <LowHitsAxialTrackUtil.h>

Static Public Member Functions
static void	addCandidateFromHits (const std::vector< const CDCWireHit * > &foundAxialWireHits, const std::vector< const CDCWireHit * > &allAxialWireHits, std::vector< CDCTrack > &axialTracks, bool fromOrigin=true, bool straight=true, bool withPostprocessing=true)
	Create CDCTrack using CDCWireHit hits and store it in the list.
static bool	postprocessTrack (CDCTrack &track, const std::vector< const CDCWireHit * > &allAxialWireHits)
	Perform all track postprocessing - return whether the track is considered good after the postprocessing.

Detailed Description

Utility structure gathering heuristic functions used during the search for non-helix or low hit count tracks.

Definition at line 24 of file LowHitsAxialTrackUtil.h.

Member Function Documentation

addCandidateFromHits()

void addCandidateFromHits ( const std::vector< const CDCWireHit * > &  foundAxialWireHits, const std::vector< const CDCWireHit * > &  allAxialWireHits, std::vector< CDCTrack > &  axialTracks, bool  fromOrigin = true, bool  straight = true, bool  withPostprocessing = true  )

static

Create CDCTrack using CDCWireHit hits and store it in the list.

Then call the postprocessing on it if need be. Uses extra assumptions like track coming from origin

Mark hits as taken and add the new track to the track list

Masked bad hits

Definition at line 20 of file LowHitsAxialTrackUtil.cc.

{
  if (foundAxialWireHits.empty()) return;
 
  // New track
  CDCTrack track;
 
  // Fit trajectory
  const CDCRiemannFitter& fitter = CDCRiemannFitter::getFitter(fromOrigin, straight);
  CDCTrajectory2D trajectory2D = fitter.fit(foundAxialWireHits);
  track.setStartTrajectory3D(CDCTrajectory3D(trajectory2D, CDCTrajectorySZ::basicAssumption()));
 
  // Reconstruct and add hits
  for (const CDCWireHit* wireHit : foundAxialWireHits) {
    AutomatonCell& automatonCell = wireHit->getAutomatonCell();
    if (automatonCell.hasTakenFlag()) continue;
    CDCRecoHit3D recoHit3D = CDCRecoHit3D::reconstructNearest(wireHit, trajectory2D);
    track.push_back(std::move(recoHit3D));
 
    automatonCell.setTakenFlag(true);
  }
  track.sortByArcLength2D();
 
  // Change everything again in the postprocessing, if desired
  bool success = withPostprocessing ? postprocessTrack(track, allAxialWireHits) : true;
  if (success) {
    for (const CDCRecoHit3D& recoHit3D : track) {
      recoHit3D.getWireHit().getAutomatonCell().setTakenFlag(true);
    }
    axialTracks.emplace_back(std::move(track));
  } else {
    for (const CDCRecoHit3D& recoHit3D : track) {
      recoHit3D.getWireHit().getAutomatonCell().setMaskedFlag(true);
      recoHit3D.getWireHit().getAutomatonCell().setTakenFlag(false);
    }
  }
}

postprocessTrack()

bool postprocessTrack ( CDCTrack &  track, const std::vector< const CDCWireHit * > &  allAxialWireHits  )

static

Perform all track postprocessing - return whether the track is considered good after the postprocessing.

Definition at line 65 of file LowHitsAxialTrackUtil.cc.

{
  // No postprocessing yet
  return true;
}

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

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