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
const StartingLayerFinder *	finder () const
std::vector< const ForwardDetLayer * >	forwardLayers (const FTS &aFts) const
	LayerCollector (const Propagator *aPropagator, const StartingLayerFinder *aFinder, float dr, float dz)
const Propagator *	propagator () const
	~LayerCollector ()

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
const StartingLayerFinder *	theStartingLayerFinder

Detailed Description

Class collecting all layers of the tracker.

Date:

2006/05/23 10:11:01

Revision:

1.2

Definition at line 22 of file LayerCollector.h.

Member Typedef Documentation

typedef FreeTrajectoryState LayerCollector::FTS

private

Definition at line 26 of file LayerCollector.h.

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

private

Definition at line 28 of file LayerCollector.h.

typedef TrajectoryStateOnSurface LayerCollector::TSOS

private

Definition at line 27 of file LayerCollector.h.

Constructor & Destructor Documentation

LayerCollector::LayerCollector ( const Propagator *  aPropagator, const StartingLayerFinder *  aFinder, float  dr, float  dz  )

inline

Definition at line 32 of file LayerCollector.h.

                   : 
    thePropagator(aPropagator),
    theStartingLayerFinder(aFinder),
    theDeltaR(dr),
    theDeltaZ(dz) { }

LayerCollector::~LayerCollector ( )

inline

Definition at line 41 of file LayerCollector.h.

{}

Member Function Documentation

vector< const DetLayer * > LayerCollector::allLayers

(

const FTS &

aFts

)

const

Definition at line 6 of file LayerCollector.cc.

References GeomDetEnumerators::barrel, deltaR(), GeomDetEnumerators::endcap, TrajectoryStateOnSurface::freeState(), TrajectoryStateOnSurface::globalParameters(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), FreeTrajectoryState::parameters(), PV3DBase< T, PVType, FrameType >::perp(), LargeD0_PixelPairStep_cff::propagator, rangesIntersect(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by ConversionSeedFinder::findLayers().

                                                                       {


  vector<const DetLayer*> myLayers;



  FTS myFts(aFts.parameters());

  vector<const DetLayer*> nextLayers = finder()->startingLayers(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 = (**ilay).nextLayers(*pTsos.freeState(), 
                     propagator()->propagationDirection());


    break;


      }     



    }
  }



  
  return myLayers;
}

vector< const BarrelDetLayer * > LayerCollector::barrelLayers

(

const FTS &

aFts

)

const

Definition at line 87 of file LayerCollector.cc.

References cond::ecalcond::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;
}

float LayerCollector::deltaR ( ) const

inline

Definition at line 49 of file LayerCollector.h.

References theDeltaR.

{return theDeltaR;}

float LayerCollector::deltaZ ( ) const

inline

Definition at line 50 of file LayerCollector.h.

References theDeltaZ.

{return theDeltaZ;}

const StartingLayerFinder* LayerCollector::finder ( ) const

inline

Definition at line 48 of file LayerCollector.h.

References theStartingLayerFinder.

{return theStartingLayerFinder;}

vector< const ForwardDetLayer * > LayerCollector::forwardLayers

(

const FTS &

aFts

)

const

Definition at line 105 of file LayerCollector.cc.

References cond::ecalcond::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;
}

const Propagator* LayerCollector::propagator ( void  ) const

inline

Definition at line 47 of file LayerCollector.h.

References thePropagator.

{return thePropagator;}

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

inlineprivate

Definition at line 61 of file LayerCollector.h.

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

Member Data Documentation

float LayerCollector::theDeltaR

private

Definition at line 56 of file LayerCollector.h.

Referenced by deltaR().

float LayerCollector::theDeltaZ

private

Definition at line 57 of file LayerCollector.h.

Referenced by deltaZ().

const Propagator* LayerCollector::thePropagator

private

Definition at line 54 of file LayerCollector.h.

Referenced by propagator().

const StartingLayerFinder* LayerCollector::theStartingLayerFinder

private

Definition at line 55 of file LayerCollector.h.

Referenced by finder().