Traj2TrackHits Class Reference

#include <Traj2TrackHits.h>

Public Types
using	Chi2sFive = std::vector< unsigned char >
using	TrajParams = std::vector< LocalTrajectoryParameters >

Public Member Functions
void	operator() (Trajectory const &traj, TrackingRecHitCollection &hits, bool splitting) const
void	operator() (Trajectory const &traj, TrackingRecHitCollection &hits, TrajParams &trajParams, Chi2sFive &chi2s) const
	Traj2TrackHits ()
	Traj2TrackHits (const TransientTrackingRecHitBuilder *builder, bool ikeepOrder, bool noNoDet=true)

Static Public Member Functions
static unsigned char	toChi2x5 (float chi2)

Private Member Functions
BaseTrackerRecHit *	build (GeomDetUnit const &idet, OmniClusterRef const &clus) const
TrackingRecHit *	clone (BaseTrackerRecHit const &hit2D) const
template<typename HI >
void	copy (HI itm, HI e, TrackingRecHitCollection &hits, TrajParams &trajParams, Chi2sFive &chi2s) const
template<typename HI >
void	copy (HI itm, HI e, TrackingRecHitCollection &hits) const
template<typename HI >
void	split (HI itm, HI e, TrackingRecHitCollection &hits, bool along) const
void	split (TrajectoryMeasurement const &itm, SiStripMatchedRecHit2D const &mhit, TrackingRecHitCollection &hits, float zdir) const

Private Attributes
bool	keepOrder = false
bool	removeNoDet = true
const StripClusterParameterEstimator *	theCPE = nullptr

Detailed Description

Definition at line 16 of file Traj2TrackHits.h.

Member Typedef Documentation

using Traj2TrackHits::Chi2sFive = std::vector<unsigned char>

Definition at line 23 of file Traj2TrackHits.h.

using Traj2TrackHits::TrajParams = std::vector<LocalTrajectoryParameters>

Definition at line 22 of file Traj2TrackHits.h.

Constructor & Destructor Documentation

Traj2TrackHits::Traj2TrackHits ( )

inline

Definition at line 31 of file Traj2TrackHits.h.

{}

Traj2TrackHits::Traj2TrackHits ( const TransientTrackingRecHitBuilder *  builder, bool  ikeepOrder, bool  noNoDet = true  )

inline

Definition at line 33 of file Traj2TrackHits.h.

      : theCPE(static_cast<TkTransientTrackingRecHitBuilder const *>(builder)->stripClusterParameterEstimator()),
        keepOrder(ikeepOrder),
        removeNoDet(noNoDet) {}

Member Function Documentation

BaseTrackerRecHit* Traj2TrackHits::build ( GeomDetUnit const &  idet, OmniClusterRef const &  clus  ) const

inlineprivate

Definition at line 131 of file Traj2TrackHits.h.

References Reference_intrackfit_cff::endcap, GeomDetType::isEndcap(), StripClusterParameterEstimator::localParameters(), SiStripPI::max, OmniClusterRef::stripCluster(), theCPE, and GeomDet::type().

Referenced by split().

                                                                                      {
    //Use 2D SiStripRecHit in endcap
    bool endcap = idet.type().isEndcap();
    auto &&lv = theCPE->localParameters(clus.stripCluster(), idet);
    if (endcap)
      return new SiStripRecHit2D(lv.first, lv.second, idet, clus);
    return new SiStripRecHit1D(
        lv.first, LocalError(lv.second.xx(), 0.f, std::numeric_limits<float>::max()), idet, clus);
  }

TrackingRecHit* Traj2TrackHits::clone ( BaseTrackerRecHit const &  hit2D ) const

inlineprivate

Definition at line 119 of file Traj2TrackHits.h.

References TrackingRecHit::clone(), TrackingRecHit::det(), TrackingRecHit::detUnit(), Reference_intrackfit_cff::endcap, BaseTrackerRecHit::firstClusterRef(), BaseTrackerRecHit::localPosition(), BaseTrackerRecHit::localPositionError(), SiStripPI::max, and LocalError::xx().

Referenced by split().

                                                              {
    auto const &detU = *hit2D.detUnit();
    //Use 2D SiStripRecHit in endcap
    bool endcap = detU.type().isEndcap();
    if (endcap)
      return hit2D.clone();
    return new SiStripRecHit1D(hit2D.localPosition(),
                               LocalError(hit2D.localPositionError().xx(), 0.f, std::numeric_limits<float>::max()),
                               *hit2D.det(),
                               hit2D.firstClusterRef());
  }

template<typename HI >

void Traj2TrackHits::copy ( HI  itm, HI  e, TrackingRecHitCollection &  hits, TrajParams &  trajParams, Chi2sFive &  chi2s  ) const

inlineprivate

Definition at line 74 of file Traj2TrackHits.h.

References alignCSCRings::e, edm::OwnVector< T, P >::push_back(), removeNoDet, and toChi2x5().

Referenced by operator()().

                                                                                                          {
    for (; itm != e; ++itm)
      if ((!removeNoDet) | ((*itm).recHitR().det() != nullptr)) {
        hits.push_back((*itm).recHitR().cloneHit());
        trajParams.push_back((*itm).updatedState().localParameters());
        chi2s.push_back(toChi2x5((*itm).estimate()));
      }
  }

template<typename HI >

void Traj2TrackHits::copy ( HI  itm, HI  e, TrackingRecHitCollection &  hits  ) const

inlineprivate

Definition at line 84 of file Traj2TrackHits.h.

References alignCSCRings::e, edm::OwnVector< T, P >::push_back(), and removeNoDet.

                                                                {
    for (; itm != e; ++itm)
      if ((!removeNoDet) | ((*itm).recHitR().det() != nullptr))
        hits.push_back((*itm).recHitR().cloneHit());
  }

void Traj2TrackHits::operator() ( Trajectory const &  traj, TrackingRecHitCollection &  hits, bool  splitting  ) const

inline

Definition at line 38 of file Traj2TrackHits.h.

References alongMomentum, copy(), Trajectory::direction(), keepOrder, Trajectory::measurements(), edm::OwnVector< T, P >::reserve(), edm::OwnVector< T, P >::shrink_to_fit(), and split().

                                                                                                {
    // ---  NOTA BENE: the convention is to sort hits and measurements "along the momentum".
    bool along = traj.direction() == alongMomentum;
    auto const &meas = traj.measurements();
    hits.reserve(splitting ? 2 * meas.size() : meas.size());
    if (!splitting) {
      if (keepOrder | along)
        copy(meas.begin(), meas.end(), hits);
      else
        copy(meas.rbegin(), meas.rend(), hits);
      return;
    }
    if (keepOrder | along)
      split(meas.begin(), meas.end(), hits, along);
    else
      split(meas.rbegin(), meas.rend(), hits, along);
    hits.shrink_to_fit();
  }

void Traj2TrackHits::operator() ( Trajectory const &  traj, TrackingRecHitCollection &  hits, TrajParams &  trajParams, Chi2sFive &  chi2s  ) const

inline

Definition at line 57 of file Traj2TrackHits.h.

References alongMomentum, copy(), Trajectory::direction(), keepOrder, and Trajectory::measurements().

                                          {
    // ---  NOTA BENE: the convention is to sort hits and measurements "along the momentum".
    bool along = traj.direction() == alongMomentum;
    auto const &meas = traj.measurements();
    trajParams.reserve(meas.size());
    chi2s.reserve(meas.size());
    if (keepOrder | along)
      copy(meas.begin(), meas.end(), hits, trajParams, chi2s);
    else
      copy(meas.rbegin(), meas.rend(), hits, trajParams, chi2s);
  }

template<typename HI >

void Traj2TrackHits::split ( HI  itm, HI  e, TrackingRecHitCollection &  hits, bool  along  ) const

inlineprivate

Definition at line 91 of file Traj2TrackHits.h.

References build(), clone(), alignCSCRings::e, BaseTrackerRecHit::firstClusterRef(), trackerHitRTTI::isNotFromCluster(), trackerHitRTTI::isUndef(), keepOrder, edm::OwnVector< T, P >::push_back(), and removeNoDet.

Referenced by operator()().

                                                                             {
    for (; itm != e; ++itm) {
      auto const &hit = *(*itm).recHit()->hit();
      if ((removeNoDet) & ((*itm).recHitR().det() == nullptr))
        continue;
      if (trackerHitRTTI::isUndef(hit) | trackerHitRTTI::isNotFromCluster(hit) | (hit.dimension() != 2)) {
        hits.push_back(hit.clone());
        continue;
      }
      auto const &thit = static_cast<BaseTrackerRecHit const &>(hit);
      auto const &clus = thit.firstClusterRef();
      if (clus.isPixel())
        hits.push_back(hit.clone());
      else if (clus.isPhase2())
        hits.push_back(hit.clone());
      else if (thit.isMatched()) {
        auto zdir = itm->updatedState().localDirection().z();
        if (keepOrder & (!along))
          zdir = -zdir;
        split(*itm, static_cast<SiStripMatchedRecHit2D const &>(thit), hits, zdir);
      } else if (thit.isProjected()) {
        auto detU = static_cast<ProjectedSiStripRecHit2D const &>(thit).originalDet();
        hits.push_back(build(*detU, clus));
      } else
        hits.push_back(clone(thit));
    }
  }

void Traj2TrackHits::split ( TrajectoryMeasurement const &  itm, SiStripMatchedRecHit2D const &  mhit, TrackingRecHitCollection &  hits, float  zdir  ) const

inlineprivate

Definition at line 141 of file Traj2TrackHits.h.

References build(), TrackingRecHit::det(), SiStripMatchedRecHit2D::monoClusterRef(), GluedGeomDet::monoDet(), GeomDet::position(), edm::OwnVector< T, P >::push_back(), hitfit::scalar(), SiStripMatchedRecHit2D::stereoClusterRef(), GluedGeomDet::stereoDet(), TrajectoryStateOnSurface::surface(), GloballyPositioned< T >::toLocal(), TrajectoryMeasurement::updatedState(), and PV3DBase< T, PVType, FrameType >::z().

                               {
    const GluedGeomDet *gdet = static_cast<const GluedGeomDet *>(mhit.det());

    auto hitM = build(*gdet->monoDet(), mhit.monoClusterRef());
    auto hitS = build(*gdet->stereoDet(), mhit.stereoClusterRef());

    // we should find a faster way
    LocalPoint firstLocalPos = itm.updatedState().surface().toLocal(gdet->monoDet()->position());
    LocalPoint secondLocalPos = itm.updatedState().surface().toLocal(gdet->stereoDet()->position());
    LocalVector Delta = secondLocalPos - firstLocalPos;
    float scalar = Delta.z() * zdir;
    // hit along the direction
    if (scalar < 0) {
      hits.push_back(hitS);
      hits.push_back(hitM);
    } else {
      hits.push_back(hitM);
      hits.push_back(hitS);
    }
  }

static unsigned char Traj2TrackHits::toChi2x5 ( float  chi2 )

inlinestatic

Definition at line 25 of file Traj2TrackHits.h.

References validate-o2o-wbm::f, and min().

Referenced by copy(), and HITrackClusterRemover::process().

                                            {
    float tc = std::round(5.f * chi2);
    return std::min(tc, 255.f);
  }

Member Data Documentation

bool Traj2TrackHits::keepOrder = false

private

Definition at line 19 of file Traj2TrackHits.h.

Referenced by operator()(), and split().

bool Traj2TrackHits::removeNoDet = true

private

Definition at line 20 of file Traj2TrackHits.h.

Referenced by copy(), and split().

const StripClusterParameterEstimator* Traj2TrackHits::theCPE = nullptr

private

Definition at line 18 of file Traj2TrackHits.h.

Referenced by build().