LayerCollector Class Reference

#include <LayerCollector.h>

Public Member Functions
std::vector< const DetLayer * >	allLayers (const FTS &aFts) const
std::vector< const BarrelDetLayer * >	barrelLayers (const FTS &aFts) const
float	deltaR () const
float	deltaZ () const
std::vector< const ForwardDetLayer * >	forwardLayers (const FTS &aFts) const
	LayerCollector (NavigationSchool const *aSchool, const Propagator *aPropagator, const MeasurementTracker *tracker, float dr, float dz)
const Propagator *	propagator () const

Private Types
typedef FreeTrajectoryState	FTS
typedef std::pair< float, float >	Range
typedef TrajectoryStateOnSurface	TSOS

Private Member Functions
bool	rangesIntersect (const Range &a, const Range &b) const

Private Attributes
float	theDeltaR
float	theDeltaZ
const Propagator *	thePropagator
NavigationSchool const *	theSchool
const StartingLayerFinder	theStartingLayerFinder

Detailed Description

Class collecting all layers of the tracker.

Definition at line 19 of file LayerCollector.h.

Member Typedef Documentation

FTS

typedef FreeTrajectoryState LayerCollector::FTS

private

Definition at line 21 of file LayerCollector.h.

Range

typedef std::pair<float, float> LayerCollector::Range

private

Definition at line 23 of file LayerCollector.h.

TSOS

typedef TrajectoryStateOnSurface LayerCollector::TSOS

private

Definition at line 22 of file LayerCollector.h.

Constructor & Destructor Documentation

LayerCollector()

LayerCollector::LayerCollector ( NavigationSchool const *  aSchool, const Propagator *  aPropagator, const MeasurementTracker *  tracker, float  dr, float  dz  )

inline

Definition at line 26 of file LayerCollector.h.

References PbPb_ZMuSkimMuonDPG_cff::tracker.

      : theSchool(aSchool),
        thePropagator(aPropagator),
        theStartingLayerFinder{*aPropagator, *tracker},
        theDeltaR(dr),
        theDeltaZ(dz) {}

Member Function Documentation

allLayers()

vector< const DetLayer * > LayerCollector::allLayers

(

const FTS &

aFts

)

const

Definition at line 7 of file LayerCollector.cc.

References GeomDetEnumerators::barrel, PbPb_ZMuSkimMuonDPG_cff::deltaR, l1tTrackerHTMiss_cfi::deltaZ, GeomDetEnumerators::endcap, TrajectoryStateOnSurface::freeState(), TrajectoryStateOnSurface::globalParameters(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), FreeTrajectoryState::parameters(), PV3DBase< T, PVType, FrameType >::perp(), TrackCandidateProducer_cfi::propagator, rangesIntersect(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by ConversionSeedFinder::findLayers().

                                                                       {
  vector<const DetLayer*> myLayers;

  FTS myFts(aFts.parameters());

  vector<const DetLayer*> nextLayers = theStartingLayerFinder(myFts, deltaR(), deltaZ());

  vector<const DetLayer*> dummy;

  bool inside = true;
  while (inside) {
    inside = false;
    for (vector<const DetLayer*>::iterator ilay = nextLayers.begin(); ilay != nextLayers.end(); ilay++) {
      TSOS pTsos = propagator()->propagate(myFts, (**ilay).surface());

      if (pTsos.isValid()) {
        inside = true;

        if ((**ilay).location() == GeomDetEnumerators::barrel) {
          Range barrZRange((**ilay).position().z() - 0.5 * ((**ilay).surface().bounds().length()),
                           (**ilay).position().z() + 0.5 * ((**ilay).surface().bounds().length()));
          Range trajZRange(pTsos.globalPosition().z() - deltaZ(), pTsos.globalPosition().z() + deltaZ());

          if (rangesIntersect(trajZRange, barrZRange))
            myLayers.push_back(*ilay);

        } else if ((**ilay).location() == GeomDetEnumerators::endcap) {
          const ForwardDetLayer* fwd = dynamic_cast<const ForwardDetLayer*>(*ilay);
          Range fwdRRange((*fwd).specificSurface().innerRadius(), (*fwd).specificSurface().outerRadius());
          Range trajRRange(pTsos.globalPosition().perp() - deltaR(), pTsos.globalPosition().perp() + deltaR());

          if (rangesIntersect(trajRRange, fwdRRange))
            myLayers.push_back(*ilay);
        }

        myFts = FTS(pTsos.globalParameters());

        nextLayers = theSchool->nextLayers(**ilay, *pTsos.freeState(), propagator()->propagationDirection());

        break;
      }
    }
  }

  return myLayers;
}

barrelLayers()

vector< const BarrelDetLayer * > LayerCollector::barrelLayers

(

const FTS &

aFts

)

const

Definition at line 54 of file LayerCollector.cc.

References python.cmstools::all().

                                                                                {
  vector<const DetLayer*> all = allLayers(aFts);
  vector<const BarrelDetLayer*> barrelLayers;

  for (vector<const DetLayer*>::iterator ilay = all.begin(); ilay != all.end(); ilay++) {
    if (const BarrelDetLayer* myBarrel = dynamic_cast<const BarrelDetLayer*>(*ilay))
      barrelLayers.push_back(myBarrel);
  }

  return barrelLayers;
}

deltaR()

float LayerCollector::deltaR ( ) const

inline

Definition at line 42 of file LayerCollector.h.

References theDeltaR.

{ return theDeltaR; }

deltaZ()

float LayerCollector::deltaZ ( ) const

inline

Definition at line 43 of file LayerCollector.h.

References theDeltaZ.

{ return theDeltaZ; }

forwardLayers()

vector< const ForwardDetLayer * > LayerCollector::forwardLayers

(

const FTS &

aFts

)

const

Definition at line 66 of file LayerCollector.cc.

References python.cmstools::all().

                                                                                  {
  vector<const DetLayer*> all = allLayers(aFts);
  vector<const ForwardDetLayer*> fwdLayers;

  for (vector<const DetLayer*>::iterator ilay = all.begin(); ilay != all.end(); ilay++) {
    if (const ForwardDetLayer* myFwd = dynamic_cast<const ForwardDetLayer*>(*ilay))
      fwdLayers.push_back(myFwd);
  }

  return fwdLayers;
}

propagator()

const Propagator* LayerCollector::propagator ( ) const

inline

Definition at line 41 of file LayerCollector.h.

References thePropagator.

{ return thePropagator; }

rangesIntersect()

bool LayerCollector::rangesIntersect ( const Range &  a, const Range &  b  ) const

inlineprivate

Definition at line 52 of file LayerCollector.h.

References a, and b.

                                                                    {
    if (a.first > b.second || b.first > a.second)
      return false;
    else
      return true;
  }

Member Data Documentation

theDeltaR

float LayerCollector::theDeltaR

private

Definition at line 49 of file LayerCollector.h.

Referenced by deltaR().

theDeltaZ

float LayerCollector::theDeltaZ

private

Definition at line 50 of file LayerCollector.h.

Referenced by deltaZ().

thePropagator

const Propagator* LayerCollector::thePropagator

private

Definition at line 47 of file LayerCollector.h.

Referenced by propagator().

theSchool

NavigationSchool const* LayerCollector::theSchool

private

Definition at line 46 of file LayerCollector.h.

theStartingLayerFinder

const StartingLayerFinder LayerCollector::theStartingLayerFinder

private

Definition at line 48 of file LayerCollector.h.