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DirectTrackerNavigation Class Reference

#include <RecoMuon/GlobalTrackingTools/interface/DirectTrackerNavigation.h>

List of all members.

Public Member Functions
DirectTrackerNavigation *	clone () const
	clone
std::vector< const DetLayer * >	compatibleLayers (const FreeTrajectoryState &fts, PropagationDirection timeDirection) const
	find compatible layers for a given trajectory state
	DirectTrackerNavigation (const edm::ESHandle< GeometricSearchTracker > &, bool outOnly=true)
	constructor
virtual	~DirectTrackerNavigation ()
	destructor
Private Member Functions
float	calculateEta (float r, float z) const
bool	checkCompatible (const FreeTrajectoryState &, const ForwardDetLayer *) const
bool	checkCompatible (const FreeTrajectoryState &, const BarrelDetLayer *) const
void	inOutBPx (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutBTEC (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutBTID (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutFPx (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutFTEC (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutFTID (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutPx (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutTIB (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
void	inOutTOB (const FreeTrajectoryState &, std::vector< const DetLayer * > &) const
bool	outward (const FreeTrajectoryState &) const
Private Attributes
float	theEpsilon
edm::ESHandle < GeometricSearchTracker >	theGeometricSearchTracker
bool	theOutLayerOnlyFlag

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Detailed Description

Definition at line 28 of file DirectTrackerNavigation.h.

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Constructor & Destructor Documentation

DirectTrackerNavigation::DirectTrackerNavigation	(	const edm::ESHandle< GeometricSearchTracker > &	tkLayout,
		bool	outOnly = true
	)

constructor

Definition at line 34 of file DirectTrackerNavigation.cc.

Referenced by clone().

                                                               : 
 theGeometricSearchTracker(tkLayout), theOutLayerOnlyFlag(outOnly), theEpsilon(-0.09) {

}

virtual DirectTrackerNavigation::~DirectTrackerNavigation

(

)

[inline, virtual]

destructor

Definition at line 37 of file DirectTrackerNavigation.h.

{}

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Member Function Documentation

float DirectTrackerNavigation::calculateEta	(	float	r,
		float	z
	)			const [private]

Definition at line 264 of file DirectTrackerNavigation.cc.

References funct::log(), and funct::tan().

Referenced by checkCompatible().

                                                                  {

  if ( z > 0 ) return -log((tan(atan(r/z)/2.)));
  return log(-(tan(atan(r/z)/2.)));

}

bool DirectTrackerNavigation::checkCompatible	(	const FreeTrajectoryState &	fts,
		const ForwardDetLayer *	dl
	)			const [private]

Definition at line 232 of file DirectTrackerNavigation.cc.

References calculateEta(), PV3DBase< T, PVType, FrameType >::eta(), BoundDisk::innerRadius(), BoundDisk::outerRadius(), GloballyPositioned< T >::position(), FreeTrajectoryState::position(), ForwardDetLayer::specificSurface(), theEpsilon, and z.

                                                                                                            {

  float eta0 = fts.position().eta();

  const BoundDisk& bd = dl->specificSurface();

  float outRadius = bd.outerRadius();
  float inRadius = bd.innerRadius();
  float z = bd.position().z();

  float etaOut = calculateEta(outRadius, z);
  float etaIn = calculateEta(inRadius, z);
 
  if ( eta0 > 0 ) return ( eta0 > ( etaOut - theEpsilon) && eta0 < (etaIn + theEpsilon) );
  else return ( eta0 < (etaOut + theEpsilon ) && eta0 > ( etaIn - theEpsilon ) );

}

bool DirectTrackerNavigation::checkCompatible	(	const FreeTrajectoryState &	fts,
		const BarrelDetLayer *	dl
	)			const [private]

Definition at line 214 of file DirectTrackerNavigation.cc.

References BoundSurface::bounds(), calculateEta(), eta, PV3DBase< T, PVType, FrameType >::eta(), Bounds::length(), FreeTrajectoryState::position(), Cylinder::radius(), radius(), BarrelDetLayer::specificSurface(), and theEpsilon.

                                                                                                           {

  float eta0 = fts.position().eta();

  const BoundCylinder& bc = dl->specificSurface();
  float radius = bc.radius();
  float length = bc.bounds().length()/2.;

  float eta = calculateEta(radius, length);

  return ( fabs(eta0) <= (fabs(eta) + theEpsilon) );

}

DirectTrackerNavigation* DirectTrackerNavigation::clone

(

void

)

const [inline]

clone

Definition at line 40 of file DirectTrackerNavigation.h.

References DirectTrackerNavigation().

                                           {
      return new DirectTrackerNavigation(*this);
    }

vector< const DetLayer * > DirectTrackerNavigation::compatibleLayers	(	const FreeTrajectoryState &	fts,
		PropagationDirection	timeDirection
	)			const

find compatible layers for a given trajectory state

Definition at line 45 of file DirectTrackerNavigation.cc.

References PV3DBase< T, PVType, FrameType >::eta(), inOutBPx(), inOutBTEC(), inOutBTID(), inOutFPx(), inOutFTEC(), inOutFTID(), inOutPx(), inOutTIB(), inOutTOB(), LogTrace, oppositeToMomentum, output(), outward(), FreeTrajectoryState::position(), and theOutLayerOnlyFlag.

Referenced by TSGFromPropagation::trackerSeeds().

                                                                          {

  bool inOut = outward(fts);
  double eta0 = fts.position().eta();

  vector<const DetLayer*> output;

  // check eta of DetLayers for compatibility

  if (inOut) { 

      if ( !theOutLayerOnlyFlag ) {
         inOutPx(fts,output);

         if ( eta0 > 1.55) inOutFPx(fts,output);
         else if ( eta0 < -1.55 ) inOutBPx(fts,output);

         if ( fabs(eta0) < 1.67 ) inOutTIB(fts,output); 

         if ( eta0 > 1.17 ) inOutFTID(fts,output);
         else if ( eta0 < -1.17 ) inOutBTID(fts,output);
      }

      if ( fabs(eta0) < 1.35 ) inOutTOB(fts,output);

      if ( eta0 > 0.97 ) inOutFTEC(fts,output);
      else if ( eta0 < -0.97 )  inOutBTEC(fts,output);

   } else {
      LogTrace("Muon|RecoMuon|DirectionTrackerNavigation")<<"No implementation for inward state at this moment. ";
   }

  if ( dir == oppositeToMomentum ) std::reverse(output.begin(),output.end());

  return output;

}

void DirectTrackerNavigation::inOutBPx	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutBTEC	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutBTID	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutFPx	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutFTEC	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutFTID	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutPx	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutTIB	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

void DirectTrackerNavigation::inOutTOB	(	const FreeTrajectoryState &	,
		std::vector< const DetLayer * > &
	)			const [private]

Referenced by compatibleLayers().

bool DirectTrackerNavigation::outward

(

const FreeTrajectoryState &

fts

)

const [private]

Definition at line 254 of file DirectTrackerNavigation.cc.

References PV3DBase< T, PVType, FrameType >::basicVector(), FreeTrajectoryState::momentum(), and FreeTrajectoryState::position().

Referenced by compatibleLayers().

                                                                          {
 
  return (fts.position().basicVector().dot(fts.momentum().basicVector()) > 0);

}

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Member Data Documentation

float DirectTrackerNavigation::theEpsilon [private]

Definition at line 83 of file DirectTrackerNavigation.h.

Referenced by checkCompatible().

edm::ESHandle<GeometricSearchTracker> DirectTrackerNavigation::theGeometricSearchTracker [private]

Definition at line 79 of file DirectTrackerNavigation.h.

bool DirectTrackerNavigation::theOutLayerOnlyFlag [private]

Definition at line 81 of file DirectTrackerNavigation.h.

Referenced by compatibleLayers().

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The documentation for this class was generated from the following files:

• RecoMuon/GlobalTrackingTools/interface/DirectTrackerNavigation.h
• RecoMuon/GlobalTrackingTools/src/DirectTrackerNavigation.cc

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