#include <GlobalMuonTrackMatcher.h>

Public Types
typedef std::pair< const Trajectory *, reco::TrackRef >	TrackCand
Public Member Functions
std::pair < TrajectoryStateOnSurface, TrajectoryStateOnSurface >	convertToTSOSMuHit (const TrackCand &, const TrackCand &) const
std::pair < TrajectoryStateOnSurface, TrajectoryStateOnSurface >	convertToTSOSTk (const TrackCand &, const TrackCand &) const
std::pair < TrajectoryStateOnSurface, TrajectoryStateOnSurface >	convertToTSOSTkHit (const TrackCand &, const TrackCand &) const
	GlobalMuonTrackMatcher (const edm::ParameterSet &, const MuonServiceProxy *)
	constructor
double	match (const TrackCand &sta, const TrackCand &track, int matchOption=0, int surfaceOption=1) const
std::vector< TrackCand >	match (const TrackCand &sta, const std::vector< TrackCand > &tracks) const
	choose all tracks with a matching-chi2 less than Chi2Cut
double	match_Chi2 (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
double	match_D (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
double	match_d (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
double	match_dist (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
double	match_R_IP (const TrackCand &, const TrackCand &) const
double	match_Rmom (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
double	match_Rpos (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
std::vector< TrackCand > ::const_iterator	matchOne (const TrackCand &sta, const std::vector< TrackCand > &tracks) const
	choose the one tracker track which best matches a muon track
bool	matchTight (const TrackCand &sta, const TrackCand &track) const
	check if two tracks are compatible (less than Chi2Cut, DeltaDCut, DeltaRCut)
bool	samePlane (const TrajectoryStateOnSurface &, const TrajectoryStateOnSurface &) const
virtual	~GlobalMuonTrackMatcher ()
	destructor
Private Attributes
double	theChi2_1
double	theChi2_2
double	theChi2_3
double	theDeltaD_1
double	theDeltaD_2
double	theDeltaD_3
double	theDeltaR_1
double	theDeltaR_2
double	theDeltaR_3
double	theEta_threshold
double	theLocChi2
double	theMinP
double	theMinPt
std::string	theOutPropagatorName
double	thePt_threshold1
double	thePt_threshold2
double	theQual_1
double	theQual_2
double	theQual_3
const MuonServiceProxy *	theService

Detailed Description

Match a standalone muon track with the most compatible tracker tracks in a TrackCollection. GlobalMuonTrackMatcher is used during global muon reconstruction to check the compatability of a tracker track with a standalone muon track. The compatability is determined on a chi2 comparison, of the local parameters of the two corresponding TrajectoryStates on the surface of the innermost muon measurement for momentum below a threshold and above this, with the position and direction parameters on the mentioned surface. If the comparison of local parameters fails to yield any matches, then it makes a comparison of the TSOS local direction.

Date:: 2010/05/17 09:44:29

Revision:: 1.12

Author:: Edwin Antillon Purdue University; Chang Liu Purdue University; Adam Everett Purdue University; Norbert Neumeister Purdue University

Definition at line 39 of file GlobalMuonTrackMatcher.h.

Member Typedef Documentation

typedef std::pair<const Trajectory*,reco::TrackRef> GlobalMuonTrackMatcher::TrackCand

Definition at line 43 of file GlobalMuonTrackMatcher.h.

Constructor & Destructor Documentation

GlobalMuonTrackMatcher::GlobalMuonTrackMatcher	(	const edm::ParameterSet &	par,
		const MuonServiceProxy *	service
	)

constructor

Definition at line 52 of file GlobalMuonTrackMatcher.cc.

References edm::ParameterSet::getParameter(), theChi2_1, theChi2_2, theChi2_3, theDeltaD_1, theDeltaD_2, theDeltaD_3, theDeltaR_1, theDeltaR_2, theDeltaR_3, theEta_threshold, theLocChi2, theMinP, theMinPt, theOutPropagatorName, thePt_threshold1, thePt_threshold2, theQual_1, theQual_2, and theQual_3.

                                                                                : 
  theService(service) {
  theMinP = par.getParameter<double>("MinP");
  theMinPt = par.getParameter<double>("MinPt");
  thePt_threshold1 = par.getParameter<double>("Pt_threshold1");
  thePt_threshold2 = par.getParameter<double>("Pt_threshold2");
  theEta_threshold= par.getParameter<double>("Eta_threshold");
  theChi2_1= par.getParameter<double>("Chi2Cut_1");
  theChi2_2= par.getParameter<double>("Chi2Cut_2");
  theChi2_3= par.getParameter<double>("Chi2Cut_3");
  theLocChi2= par.getParameter<double>("LocChi2Cut");
  theDeltaD_1= par.getParameter<double>("DeltaDCut_1");
  theDeltaD_2= par.getParameter<double>("DeltaDCut_2");
  theDeltaD_3= par.getParameter<double>("DeltaDCut_3");
  theDeltaR_1= par.getParameter<double>("DeltaRCut_1");
  theDeltaR_2= par.getParameter<double>("DeltaRCut_2");
  theDeltaR_3= par.getParameter<double>("DeltaRCut_3");
  theQual_1= par.getParameter<double>("Quality_1");
  theQual_2= par.getParameter<double>("Quality_2");
  theQual_3= par.getParameter<double>("Quality_3");
  theOutPropagatorName = par.getParameter<string>("Propagator");

}

GlobalMuonTrackMatcher::~GlobalMuonTrackMatcher ( ) [virtual]

destructor

Definition at line 81 of file GlobalMuonTrackMatcher.cc.

                                                {

}

Member Function Documentation

std::pair< TrajectoryStateOnSurface, TrajectoryStateOnSurface > GlobalMuonTrackMatcher::convertToTSOSMuHit	(	const TrackCand &	staCand,
		const TrackCand &	tkCand
	)		const

Definition at line 425 of file GlobalMuonTrackMatcher.cc.

References relativeConstraints::empty, TrajectoryStateOnSurface::freeState(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateTransform::innerStateOnSurface(), TrajectoryStateOnSurface::isValid(), LogTrace, mag(), TrajectoryStateTransform::outerStateOnSurface(), theMinP, theMinPt, theOutPropagatorName, and theService.

Referenced by match(), matchOne(), and matchTight().

                                                                          {
  
  const string category = "GlobalMuonTrackMatcher";
  TrajectoryStateOnSurface empty; 
  TransientTrack muTT(*staCand.second,&*theService->magneticField(),theService->trackingGeometry());
  TrajectoryStateOnSurface innerMuTSOS = muTT.innermostMeasurementState();
  TrajectoryStateOnSurface outerTkTsos,innerTkTsos;
  if ( tkCand.second.isNonnull() ) {
    // make sure the tracker track has enough momentum to reach the muon chambers
    if ( !(tkCand.second->p() < theMinP || tkCand.second->pt() < theMinPt ) ) {
      TrajectoryStateOnSurface innerTkTsos;
      TrajectoryStateTransform tsTransform;
      outerTkTsos = tsTransform.outerStateOnSurface(*tkCand.second,*theService->trackingGeometry(),&*theService->magneticField());
      innerTkTsos = tsTransform.innerStateOnSurface(*tkCand.second,*theService->trackingGeometry(),&*theService->magneticField());
      // for cosmics, outer-most referst to last traversed layer
      if ( (innerMuTSOS.globalPosition() -  outerTkTsos.globalPosition()).mag() > (innerMuTSOS.globalPosition() -  innerTkTsos.globalPosition()).mag() )
        outerTkTsos = innerTkTsos;
      
    }
  }
    
  if ( !innerMuTSOS.isValid() || !outerTkTsos.isValid() ) {
    LogTrace(category) << "A TSOS validity problem! MuTSOS " << innerMuTSOS.isValid() << " TkTSOS " << outerTkTsos.isValid();
    return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty,empty);
  }
  
  const Surface& refSurface = innerMuTSOS.surface();
  TrajectoryStateOnSurface tkAtMu = theService->propagator(theOutPropagatorName)->propagate(*outerTkTsos.freeState(),refSurface);
  
  if ( !tkAtMu.isValid() ) {
    LogTrace(category) << "Could not propagate Muon and Tracker track to the same muon hit surface!";
    return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty,empty);    
  }
  
  return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(innerMuTSOS, tkAtMu);

}

std::pair< TrajectoryStateOnSurface, TrajectoryStateOnSurface > GlobalMuonTrackMatcher::convertToTSOSTk	(	const TrackCand &	staCand,
		const TrackCand &	tkCand
	)		const

Definition at line 368 of file GlobalMuonTrackMatcher.cc.

References relativeConstraints::empty, TrajectoryStateOnSurface::isValid(), LogTrace, TrajectoryStateTransform::outerStateOnSurface(), samePlane(), TrajectoryStateOnSurface::surface(), theMinP, theMinPt, theOutPropagatorName, and theService.

                                                                       {
  
  const string category = "GlobalMuonTrackMatcher";

  TrajectoryStateOnSurface empty; 
  
  TransientTrack muTT(*staCand.second,&*theService->magneticField(),theService->trackingGeometry());
  TrajectoryStateOnSurface impactMuTSOS = muTT.impactPointState();

  TrajectoryStateOnSurface outerTkTsos;
  if (tkCand.second.isNonnull()) {
    // make sure the tracker track has enough momentum to reach the muon chambers
    if ( !(tkCand.second->p() < theMinP || tkCand.second->pt() < theMinPt )) {
      TrajectoryStateTransform tsTransform;
      outerTkTsos = tsTransform.outerStateOnSurface(*tkCand.second,*theService->trackingGeometry(),&*theService->magneticField());
    }
  }
  
  if ( !impactMuTSOS.isValid() || !outerTkTsos.isValid() ) return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty,empty);
  
  // define StateOnTrackerBound object
  StateOnTrackerBound fromInside(&*theService->propagator(theOutPropagatorName));
  
  // extrapolate to outer tracker surface
  TrajectoryStateOnSurface tkTsosFromMu = fromInside(impactMuTSOS);
  TrajectoryStateOnSurface tkTsosFromTk = fromInside(outerTkTsos);

  if ( !samePlane(tkTsosFromMu,tkTsosFromTk) ) {
    // propagate tracker track to same surface as muon
    bool same1, same2;
    TrajectoryStateOnSurface newTkTsosFromTk, newTkTsosFromMu;
    if ( tkTsosFromMu.isValid() ) newTkTsosFromTk = theService->propagator(theOutPropagatorName)->propagate(outerTkTsos,tkTsosFromMu.surface());
    same1 = samePlane(newTkTsosFromTk,tkTsosFromMu);
    LogTrace(category) << "Propagating to same tracker surface (Mu):" << same1;
    if ( !same1 ) {
      if ( tkTsosFromTk.isValid() ) newTkTsosFromMu = theService->propagator(theOutPropagatorName)->propagate(impactMuTSOS,tkTsosFromTk.surface());
      same2 = samePlane(newTkTsosFromMu,tkTsosFromTk);
      LogTrace(category) << "Propagating to same tracker surface (Tk):" << same2;
    }
    if (same1) tkTsosFromTk = newTkTsosFromTk;
    else if (same2) tkTsosFromMu = newTkTsosFromMu;
    else  {
      LogTrace(category) << "Could not propagate Muon and Tracker track to the same tracker bound!";
      return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty, empty);
    }
  }
 
  return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(tkTsosFromMu, tkTsosFromTk);

}

std::pair< TrajectoryStateOnSurface, TrajectoryStateOnSurface > GlobalMuonTrackMatcher::convertToTSOSTkHit	(	const TrackCand &	staCand,
		const TrackCand &	tkCand
	)		const

Definition at line 469 of file GlobalMuonTrackMatcher.cc.

References relativeConstraints::empty, TrajectoryStateOnSurface::globalPosition(), TrajectoryStateTransform::innerStateOnSurface(), TrajectoryStateOnSurface::isValid(), LogTrace, mag(), TrajectoryStateTransform::outerStateOnSurface(), TrajectoryStateOnSurface::surface(), theMinP, theMinPt, theOutPropagatorName, and theService.

Referenced by match().

                                                                          {
  
  const string category = "GlobalMuonTrackMatcher";

  TrajectoryStateOnSurface empty; 

  TransientTrack muTT(*staCand.second,&*theService->magneticField(),theService->trackingGeometry());
  TrajectoryStateOnSurface impactMuTSOS = muTT.impactPointState();
  TrajectoryStateOnSurface innerMuTSOS = muTT.innermostMeasurementState();
  
  TrajectoryStateOnSurface outerTkTsos,innerTkTsos;
  if ( tkCand.second.isNonnull() ) {
    // make sure the tracker track has enough momentum to reach the muon chambers
    if ( !(tkCand.second->p() < theMinP || tkCand.second->pt() < theMinPt )) {
      TrajectoryStateTransform tsTransform;
      outerTkTsos = tsTransform.outerStateOnSurface(*tkCand.second,*theService->trackingGeometry(),&*theService->magneticField());
      innerTkTsos = tsTransform.innerStateOnSurface(*tkCand.second,*theService->trackingGeometry(),&*theService->magneticField());
      
      // for cosmics, outer-most referst to last traversed layer
      if ( (innerMuTSOS.globalPosition() -  outerTkTsos.globalPosition()).mag() > (innerMuTSOS.globalPosition() -  innerTkTsos.globalPosition()).mag() )
        outerTkTsos = innerTkTsos;
      
    }
  }

  if ( !impactMuTSOS.isValid() || !outerTkTsos.isValid() ) {
    LogTrace(category) << "A TSOS validity problem! MuTSOS " << impactMuTSOS.isValid() << " TkTSOS " << outerTkTsos.isValid();
    return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty,empty);
  }

  const Surface& refSurface = outerTkTsos.surface();
  TrajectoryStateOnSurface muAtTk = theService->propagator(theOutPropagatorName)->propagate(*impactMuTSOS.freeState(),refSurface);
  
  if ( !muAtTk.isValid() ) {
    LogTrace(category) << "Could not propagate Muon and Tracker track to the same tracker hit surface!";
    return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(empty,empty);    
  }

  return pair<TrajectoryStateOnSurface,TrajectoryStateOnSurface>(muAtTk, outerTkTsos);

}

double GlobalMuonTrackMatcher::match	(	const TrackCand &	sta,
		const TrackCand &	track,
		int	matchOption = `0`,
		int	surfaceOption = `1`
	)		const

check if two tracks are compatible matchOption: 0 = chi2, 1 = distance, 2 = deltaR surfaceOption: 0 = outermost tracker surface, 1 = innermost muon system surface

Definition at line 114 of file GlobalMuonTrackMatcher.cc.

References convertToTSOSMuHit(), convertToTSOSTkHit(), match_Chi2(), match_d(), match_dist(), and match_Rpos().

Referenced by GlobalCosmicMuonTrajectoryBuilder::match(), GlobalTrackQualityProducer::produce(), L3MuonTrajectoryBuilder::trajectories(), and GlobalMuonTrajectoryBuilder::trajectories().

                                                       {

  std::pair<TrajectoryStateOnSurface, TrajectoryStateOnSurface> tsosPair;
  if ( surfaceOption == 0 ) tsosPair = convertToTSOSMuHit(sta,track);
  if ( surfaceOption == 1 ) tsosPair = convertToTSOSTkHit(sta,track);
  if ( surfaceOption != 0 && surfaceOption != 1 ) return -1.0;

  if ( matchOption == 0 ) {
    // chi^2
    return  match_Chi2(tsosPair.first,tsosPair.second);
  }
  else if ( matchOption == 1 ) {
    // distance
    return match_d(tsosPair.first,tsosPair.second);
  }
  else if ( matchOption == 2 ) {
    // deltaR
    return match_Rpos(tsosPair.first,tsosPair.second);
  }
  else if ( matchOption == 3 ) {
    return match_dist(tsosPair.first,tsosPair.second);
  }
  else {
    return -1.0;
  }
}

std::vector<TrackCand> GlobalMuonTrackMatcher::match	(	const TrackCand &	sta,
		const std::vector< TrackCand > &	tracks
	)		const

choose all tracks with a matching-chi2 less than Chi2Cut

double GlobalMuonTrackMatcher::match_Chi2	(	const TrajectoryStateOnSurface &	tsos1,
		const TrajectoryStateOnSurface &	tsos2
	)		const

Definition at line 541 of file GlobalMuonTrackMatcher.cc.

References TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localError(), TrajectoryStateOnSurface::localParameters(), m, LocalTrajectoryError::matrix(), v, and LocalTrajectoryParameters::vector().

Referenced by match(), matchOne(), and matchTight().

                                                                                {
  
  const string category = "GlobalMuonTrackMatcher";
  //LogTrace(category) << "match_Chi2 sanity check: " << tsos1.isValid() << " " << tsos2.isValid();
  if ( !tsos1.isValid() || !tsos2.isValid() ) return -1.;
  
  AlgebraicVector5 v(tsos1.localParameters().vector() - tsos2.localParameters().vector());
  AlgebraicSymMatrix55 m(tsos1.localError().matrix() + tsos2.localError().matrix());
  
  //LogTrace(category) << "match_Chi2 vector v " << v;

  bool ierr = !m.Invert();
 
  if ( ierr ) { 
    edm::LogInfo(category) << "Error inverting covariance matrix";
    return -1;
  }
 
  double est = ROOT::Math::Similarity(v,m);
 
  //LogTrace(category) << "Chi2 " << est;

  return est;

}

double GlobalMuonTrackMatcher::match_D	(	const TrajectoryStateOnSurface &	sta,
		const TrajectoryStateOnSurface &	tk
	)		const

Definition at line 619 of file GlobalMuonTrackMatcher.cc.

References TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), and mag().

Referenced by samePlane().

                                                                          {

  if ( !sta.isValid() || !tk.isValid() ) return -1;
  return (sta.globalPosition() - tk.globalPosition()).mag();

}

double GlobalMuonTrackMatcher::match_d	(	const TrajectoryStateOnSurface &	sta,
		const TrajectoryStateOnSurface &	tk
	)		const

Definition at line 632 of file GlobalMuonTrackMatcher.cc.

References TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localPosition(), and mag().

Referenced by match(), matchTight(), and samePlane().

                                                                          {

  if ( !sta.isValid() || !tk.isValid() ) return -1;
  return (sta.localPosition() - tk.localPosition()).mag();

}

double GlobalMuonTrackMatcher::match_dist	(	const TrajectoryStateOnSurface &	sta,
		const TrajectoryStateOnSurface &	tk
	)		const

Definition at line 646 of file GlobalMuonTrackMatcher.cc.

References TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localError(), TrajectoryStateOnSurface::localPosition(), LogTrace, m, LocalTrajectoryError::positionError(), v, PV3DBase< T, PVType, FrameType >::x(), LocalError::xx(), LocalError::xy(), PV3DBase< T, PVType, FrameType >::y(), and LocalError::yy().

Referenced by match().

                                                                             {
 
   const string category = "GlobalMuonTrackMatcher";
   
   if ( !sta.isValid() || !tk.isValid() ) return -1;
 
   AlgebraicMatrix22 m;
   m(0,0) = tk.localError().positionError().xx() + sta.localError().positionError().xx();
   m(1,0) = m(0,1) = tk.localError().positionError().xy() + sta.localError().positionError().xy();
   m(1,1) = tk.localError().positionError().yy() + sta.localError().positionError().yy();
 
   AlgebraicVector2 v;
   v[0] = tk.localPosition().x() - sta.localPosition().x();
   v[1] = tk.localPosition().y() - sta.localPosition().y();
 
   if ( !m.Invert() ) {
     LogTrace(category) << "Error inverting local matrix ";
     return -1;
   }
 
   return ROOT::Math::Similarity(v,m);

}

double GlobalMuonTrackMatcher::match_R_IP	(	const TrackCand &	staCand,
		const TrackCand &	tkCand
	)		const

Definition at line 573 of file GlobalMuonTrackMatcher.cc.

                                                                  {

  double dR = 99.0;
  if (tkCand.second.isNonnull()) {
    dR = (deltaR<double>(staCand.second->eta(),staCand.second->phi(),
                         tkCand.second->eta(),tkCand.second->phi()));
  }

  return dR;

}

double GlobalMuonTrackMatcher::match_Rmom	(	const TrajectoryStateOnSurface &	sta,
		const TrajectoryStateOnSurface &	tk
	)		const

Definition at line 591 of file GlobalMuonTrackMatcher.cc.

References PV3DBase< T, PVType, FrameType >::eta(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::isValid(), and PV3DBase< T, PVType, FrameType >::phi().

                                                                             {

  if( !sta.isValid() || !tk.isValid() ) return -1;
  return (deltaR<double>(sta.globalMomentum().eta(),sta.globalMomentum().phi(),
                         tk.globalMomentum().eta(),tk.globalMomentum().phi()));

}

double GlobalMuonTrackMatcher::match_Rpos	(	const TrajectoryStateOnSurface &	sta,
		const TrajectoryStateOnSurface &	tk
	)		const

Definition at line 605 of file GlobalMuonTrackMatcher.cc.

References PV3DBase< T, PVType, FrameType >::eta(), TrajectoryStateOnSurface::globalPosition(), TrajectoryStateOnSurface::isValid(), and PV3DBase< T, PVType, FrameType >::phi().

Referenced by match().

                                                                             {

  if ( !sta.isValid() || !tk.isValid() ) return -1;
  return (deltaR<double>(sta.globalPosition().eta(),sta.globalPosition().phi(),
                         tk.globalPosition().eta(),tk.globalPosition().phi()));

}

std::vector< GlobalMuonTrackMatcher::TrackCand >::const_iterator GlobalMuonTrackMatcher::matchOne	(	const TrackCand &	sta,
		const std::vector< TrackCand > &	tracks
	)		const

choose the one tracker track which best matches a muon track

Definition at line 150 of file GlobalMuonTrackMatcher.cc.

References convertToTSOSMuHit(), match_Chi2(), and query::result.

                                                                           {

  if ( tracks.empty() ) return tracks.end();

  double minChi2 = 1000.0;
  vector<TrackCand>::const_iterator result = tracks.end();
  for (vector<TrackCand>::const_iterator is = tracks.begin(); is != tracks.end(); ++is) {
    // propagate to common surface
    std::pair<TrajectoryStateOnSurface, TrajectoryStateOnSurface> tsosPair
      = convertToTSOSMuHit(sta,*is);

    // calculate chi^2 of local track parameters
    double chi2 = match_Chi2(tsosPair.first,tsosPair.second);
    if ( chi2 > 0. && chi2 <= minChi2 ) {
      minChi2 = chi2;
      result = is;
    }
    
  }
  
  return result;
  
}

bool GlobalMuonTrackMatcher::matchTight	(	const TrackCand &	sta,
		const TrackCand &	track
	)		const

check if two tracks are compatible (less than Chi2Cut, DeltaDCut, DeltaRCut)

Definition at line 90 of file GlobalMuonTrackMatcher.cc.

References convertToTSOSMuHit(), match_Chi2(), match_d(), theChi2_2, and theDeltaD_2.

Referenced by GlobalTrackQualityProducer::produce().

                                                            {

  std::pair<TrajectoryStateOnSurface, TrajectoryStateOnSurface> tsosPair
      = convertToTSOSMuHit(sta,track);

  double chi2 = match_Chi2(tsosPair.first,tsosPair.second);
  if ( chi2 > 0. && chi2 < theChi2_2 ) return true;

  double distance = match_d(tsosPair.first,tsosPair.second);
  if ( distance > 0. && distance < theDeltaD_2 ) return true;

  //double deltaR = match_Rpos(tsosPair.first,tsosPair.second);
  //if ( deltaR > 0. && deltaR < theDeltaR_3 ) return true;

  return false;

}

bool GlobalMuonTrackMatcher::samePlane	(	const TrajectoryStateOnSurface &	tsos1,
		const TrajectoryStateOnSurface &	tsos2
	)		const

Definition at line 517 of file GlobalMuonTrackMatcher.cc.

References TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localPosition(), match_D(), match_d(), p1, p2, TrajectoryStateOnSurface::surface(), and Surface::tangentPlane().

Referenced by convertToTSOSTk().

                                                                               {

  if ( !tsos1.isValid() || !tsos2.isValid() ) return false;

  if ( fabs(match_D(tsos1,tsos2) - match_d(tsos1,tsos2)) > 0.1 ) return false;

  const float maxtilt = 0.999;
  const float maxdist = 0.01; // in cm

  ReferenceCountingPointer<TangentPlane> p1(tsos1.surface().tangentPlane(tsos1.localPosition()));
  ReferenceCountingPointer<TangentPlane> p2(tsos2.surface().tangentPlane(tsos2.localPosition()));

  bool returnValue = ( (fabs(p1->normalVector().dot(p2->normalVector())) > maxtilt) || (fabs((p1->toLocal(p2->position())).z()) < maxdist) ) ? true : false;

  return returnValue; 
 
}