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

getRecHitCombinationIndex()

template<class T >

int32_t fastTrackingUtilities::getRecHitCombinationIndex

(

const T &

object

)

Definition at line 22 of file FastTrackingUtilities.h.

                                                     {
    // seed must have at least one hit
    if (object.recHits().empty()) {
      throw cms::Exception("fastTrackingHelpers::getRecHitCombinationIndex")
          << "  given object has 0 hits" << std::endl;
    }
 
    const TrackingRecHit &recHit = *object.recHits().begin();
    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
  }

References relativeConstraints::empty, Exception, trackerHitRTTI::isFast(), rpcPointValidation_cfi::recHit, and FastTrackerRecHitMaskProducer_cfi::recHits.

Referenced by TrackCandidateProducer::produce().

hitIsMasked()

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

inline

Definition at line 39 of file FastTrackingUtilities.h.

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

References DetachedQuadStep_cff::hitMasks, mps_fire::i, and hit::id.

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

hitLocalError()

double fastTrackingUtilities::hitLocalError ( const TrackingRecHit *  hit )

inline

Definition at line 48 of file FastTrackingUtilities.h.

                                                         {
    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);
  }

References dumpMFGeometry_cfg::delta, mathSSE::sqrt(), geometryCSVtoXML::xx, geometryCSVtoXML::xy, and geometryCSVtoXML::yy.

Referenced by TrackCandidateProducer::produce().

setRecHitCombinationIndex()

template<class T >

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

inline

Definition at line 11 of file FastTrackingUtilities.h.

                                                                                 {
    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);
    }
  }

References Exception, trackerHitRTTI::isFast(), rpcPointValidation_cfi::recHit, and FastTrackerRecHitMaskProducer_cfi::recHits.

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