fastTrackingUtilities Namespace Reference

Functions
template<class T >
int32_t	getRecHitCombinationIndex (const T &object)
bool	hitIsMasked (const FastTrackerRecHit *hit, const std::vector< bool > *hitMasks)
double	hitLocalError (const TrackingRecHit *hit)
template<class T >
void	setRecHitCombinationIndex (edm::OwnVector< T > &recHits, int32_t icomb)

Function Documentation

template<class T >

int32_t fastTrackingUtilities::getRecHitCombinationIndex

(

const T &

object

)

Definition at line 20 of file FastTrackingUtilities.h.

References Exception, plotBeamSpotDB::first, trackerHitRTTI::isFast(), TrackingRecHit::recHits(), HLT_25ns10e33_v2_cff::recHits, and edm::second().

Referenced by TrackCandidateProducer::produce().

                                                                         {
    // seed must have at least one hit
    if(object.recHits().first == object.recHits().second){
        throw cms::Exception("fastTrackingHelpers::getRecHitCombinationIndex") << "  given object has 0 hits" << std::endl;
    }

    const TrackingRecHit & recHit = *object.recHits().first;
    if(!trackerHitRTTI::isFast(recHit)){
        throw cms::Exception("fastTrackingHelpers::setRecHitCombinationIndex") << "  one of hits in OwnVector is non-fastsim" << std::endl;
    }
    // cast and return combination index
    return static_cast<const FastTrackerRecHit &>(recHit).recHitCombinationIndex();
    // return combination index of first hit
    }

bool fastTrackingUtilities::hitIsMasked ( const FastTrackerRecHit *  hit, const std::vector< bool > *  hitMasks  )

inline

Definition at line 36 of file FastTrackingUtilities.h.

References i, FastTrackerRecHit::id(), and FastTrackerRecHit::nIds().

Referenced by TrackCandidateProducer::produce(), and TrajectorySeedProducer::produce().

                                                                                           {
    for(unsigned int i = 0;i<hit->nIds();i++){
        if(!(*hitMasks)[hit->id(i)]){
        return false;
        }
    }
    return true;
    }

double fastTrackingUtilities::hitLocalError ( const TrackingRecHit *  hit )

inline

Definition at line 45 of file FastTrackingUtilities.h.

References delta, TrackingRecHit::localPositionError(), mathSSE::sqrt(), LocalError::xx(), LocalError::xy(), create_public_lumi_plots::xy, and LocalError::yy().

Referenced by TrackCandidateProducer::produce().

    { 
    
    double xx = hit->localPositionError().xx();
    double yy = hit->localPositionError().yy();
    double xy = hit->localPositionError().xy();
    double delta = std::sqrt((xx-yy)*(xx-yy)+4.*xy*xy);
    return 0.5 * (xx+yy-delta);
    }

template<class T >

void fastTrackingUtilities::setRecHitCombinationIndex ( edm::OwnVector< T > &  recHits, int32_t  icomb  )

inline

Definition at line 10 of file FastTrackingUtilities.h.

References Exception, and trackerHitRTTI::isFast().

Referenced by TrackCandidateProducer::produce(), TrajectorySeedProducer::produce(), and FastTSGFromPropagation::trackerSeeds().

                                                                                                    {
    for(auto & recHit : recHits){
        if(!trackerHitRTTI::isFast(recHit)){
        throw cms::Exception("fastTrackingHelpers::setRecHitCombinationIndex: one of hits in OwnVector is non-fastsim");
        }
        static_cast<FastTrackerRecHit &>(recHit).setRecHitCombinationIndex(icomb);
    }
    }