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#include "DataFormats/TrackerRecHit2D/interface/OmniClusterRef.h"#include "SimDataFormats/Associations/interface/TrackToTrackingParticleAssociator.h"Go to the source code of this file.
Classes | |
| class | QuickTrackAssociatorByHitsImpl |
Functions | |
| bool | clusterTPAssociationListGreater (std::pair< OmniClusterRef, TrackingParticleRef > i, std::pair< OmniClusterRef, TrackingParticleRef > j) |
| TrackToTrackingParticleAssociator that associates by hits a bit quicker than the normal TrackAssociatorByHitsImpl class. More... | |
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inline |
TrackToTrackingParticleAssociator that associates by hits a bit quicker than the normal TrackAssociatorByHitsImpl class.
NOTE - Doesn't implement the TrackCandidate association methods (from TrackAssociatorBase) so will always return empty associations for those.
This track associator (mostly) does the same as TrackAssociatorByHitsImpl, but faster. I've tested it a fair bit and can't find any differences between the results of this and the standard TrackAssociatorByHitsImpl.
Configuration parameters:
AbsoluteNumberOfHits - bool - if true, Quality_SimToReco and Cut_RecoToSim are the absolute number of shared hits required for association, not the percentage.
Quality_SimToReco - double - The minimum amount of shared hits required, as a percentage of either the reconstructed hits or simulated hits (see SimToRecoDenominator), for the track to be considered associated during a call to associateSimToReco. See also AbsoluteNumberOfHits.
Purity_SimToReco - double - The minimum amount of shared hits required, as a percentage of the reconstructed hits, for the track to be considered associated during a call to associateSimToReco. Has no effect if AbsoluteNumberOfHits is true.
Cut_RecoToSim - double - The minimum amount of shared hits required, as a percentage of the reconstructed hits, for the track to be considered associated during a call to associateRecoToSim. See also AbsoluteNumberOfHits.
ThreeHitTracksAreSpecial - bool - If true, tracks with 3 hits must have all their hits associated.
SimToRecoDenominator - string - Must be either "sim" or "reco". If "sim" Quality_SimToReco is the percentage of simulated hits that need to be shared. If "reco" then it's the percentage of reconstructed hits (i.e. same as Purity_SimToReco).
associatePixel - bool - Passed on to the hit associator.
associateStrip - bool - Passed on to the hit associator.
requireStoredHits - bool - Whether or not to insist all TrackingParticles have at least one PSimHit. The PSimHits are not required for the association, but the old TrackAssociatorByHitsImpl still had this requirement. Storing PSimHits in the TrackingParticle is now optional (see TrackingTruthAccumulator which replaces TrackingTruthProducer). Having requireStoredHits set to true will mean no TrackingParticles will be associated if you have chosen not to store the hits. The flag is only kept in order to retain the old behaviour which can give very slightly different results.
Note that the TrackAssociatorByHitsImpl parameters UseGrouped and UseSplitting are not used.
Definition at line 59 of file QuickTrackAssociatorByHitsImpl.h.
Referenced by QuickTrackAssociatorByHitsImpl::associateTrack(), QuickTrackAssociatorByHitsImpl::getDoubleCount(), and QuickTrackAssociatorByHitsProducer::produce().
1.8.5