MultiGaussianStateTransform Namespace Reference

Enumerations
enum	{ N = reco::GsfTrackExtra::dimension }

Functions
MultiGaussianState< N >	innerMultiState (const reco::GsfTrack &tk)
MultiGaussianState1D	innerMultiState1D (const reco::GsfTrack &tk, unsigned int index)
MultiGaussianState< N >	multiState (const std::vector< MultiGaussianState< N >::Vector > &, const std::vector< MultiGaussianState< N >::Matrix > &, const std::vector< double > &)
MultiGaussianState< 5 >	multiState (const TrajectoryStateOnSurface)
MultiGaussianState1D	multiState1D (const std::vector< MultiGaussianState< N >::Vector > &, const std::vector< MultiGaussianState< N >::Matrix > &, const std::vector< double > &, unsigned int)
MultiGaussianState1D	multiState1D (const TrajectoryStateOnSurface, unsigned int)
MultiGaussianState< N >	outerMultiState (const reco::GsfTrack &tk)
MultiGaussianState1D	outerMultiState1D (const reco::GsfTrack &tk, unsigned int index)
TrajectoryStateOnSurface	tsosFromSingleState (const SingleGaussianState< 5 > &, const TrajectoryStateOnSurface)

Enumeration Type Documentation

anonymous enum

Enumerator
N

Definition at line 19 of file MultiGaussianStateTransform.h.

{ N = reco::GsfTrackExtra::dimension };

Function Documentation

MultiGaussianState< MultiGaussianStateTransform::N > MultiGaussianStateTransform::innerMultiState

(

const reco::GsfTrack &

tk

)

Construct a MultiGaussianState from the reco::GsfTrack innermost state (local parameters)

Definition at line 18 of file MultiGaussianStateTransform.cc.

References reco::GsfTrack::gsfExtra(), and multiState().

{
  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return multiState(extra->innerStateLocalParameters(),
           extra->innerStateCovariances(),
           extra->innerStateWeights());
}

MultiGaussianState1D MultiGaussianStateTransform::innerMultiState1D	(	const reco::GsfTrack &	tk,
		unsigned int	index
	)

Construct a MultiGaussianState1D for the local parameter corresponding to "index" (0<=index<5) from the reco::GsfTrack innermost state

Definition at line 41 of file MultiGaussianStateTransform.cc.

References Exception, reco::GsfTrack::gsfExtra(), cmsHarvester::index, multiState1D(), and N.

{
  if ( index>=N )  
    throw cms::Exception("LogicError") << "MultiGaussianStateTransform: index out of range";

  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return multiState1D(extra->innerStateLocalParameters(),
              extra->innerStateCovariances(),
              extra->innerStateWeights(),
              index);
}

MultiGaussianState< MultiGaussianStateTransform::N > MultiGaussianStateTransform::multiState	(	const std::vector< MultiGaussianState< N >::Vector > &	parameters,
		const std::vector< MultiGaussianState< N >::Matrix > &	covariances,
		const std::vector< double > &	weights
	)

Construct a MultiGaussianState from the vectors of parameters, covariances and weights

Definition at line 55 of file MultiGaussianStateTransform.cc.

References makeMuonMisalignmentScenario::components, i, and Parameters::parameters.

Referenced by innerMultiState(), MultiTrajectoryStateMerger::merge(), and outerMultiState().

{
  unsigned int nc = parameters.size();
  MultiGaussianState<N>::SingleStateContainer components;
  components.reserve(nc);
  for ( unsigned int i=0; i<nc; ++i ) {
    MultiGaussianState<N>::SingleStatePtr 
      sgs(new MultiGaussianState<N>::SingleState(parameters[i],covariances[i],weights[i]));
    components.push_back(sgs);
  }
  return MultiGaussianState<N>(components);
}

MultiGaussianState< 5 > MultiGaussianStateTransform::multiState

(

const TrajectoryStateOnSurface

tsos

)

Construct a MultiGaussianState from a TrajectoryStateOnSurface (local parameters)

Definition at line 87 of file MultiGaussianStateTransform.cc.

References makeMuonMisalignmentScenario::components, TrajectoryStateOnSurface::components(), and i.

{
  std::vector<TrajectoryStateOnSurface> tsosComponents(tsos.components());
  MultiGaussianState<5>::SingleStateContainer components;
  components.reserve(tsosComponents.size());
  for ( std::vector<TrajectoryStateOnSurface>::const_iterator i=tsosComponents.begin();
    i!=tsosComponents.end(); ++i ) {
    MultiGaussianState<5>::SingleStatePtr 
      sgs(new MultiGaussianState<5>::SingleState(i->localParameters().vector(),
                         i->localError().matrix(),
                         i->weight()));
    components.push_back(sgs);
  }
  return MultiGaussianState<5>(components);
}

MultiGaussianState1D MultiGaussianStateTransform::multiState1D	(	const std::vector< MultiGaussianState< N >::Vector > &	parameters,
		const std::vector< MultiGaussianState< N >::Matrix > &	covariances,
		const std::vector< double > &	weights,
		unsigned int	index
	)

Construct a MultiGaussianState1D from the vectors of parameters, covariances and weights

Definition at line 71 of file MultiGaussianStateTransform.cc.

References makeMuonMisalignmentScenario::components, i, and Parameters::parameters.

Referenced by MultiTrajectoryStateMode::chargeFromMode(), PFGsfHelper::computeQpMode(), ElectronMomentumCorrector::correct(), GsfTrackProducerBase::fillMode(), innerMultiState1D(), GsfTrackProducerBase::localParametersFromQpMode(), MultiTrajectoryStateMode::momentumFromModeLocal(), MultiTrajectoryStateMode::momentumFromModeP(), MultiTrajectoryStateMode::momentumFromModeQP(), outerMultiState1D(), and MultiTrajectoryStateMode::positionFromModeLocal().

{
  unsigned int nc = parameters.size();
  MultiGaussianState1D::SingleState1dContainer components;
  components.reserve(nc);
  for ( unsigned int i=0; i<nc; ++i ) {
    components.push_back(SingleGaussianState1D(parameters[i](index),
                           covariances[i](index,index),
                           weights[i]));
  }
  return MultiGaussianState1D(components);
}

MultiGaussianState1D MultiGaussianStateTransform::multiState1D	(	const TrajectoryStateOnSurface	tsos,
		unsigned int	index
	)

Construct a MultiGaussianState1D from a TrajectoryStateOnSurface (local parameters)

Definition at line 104 of file MultiGaussianStateTransform.cc.

References makeMuonMisalignmentScenario::components, TrajectoryStateOnSurface::components(), Exception, i, cmsHarvester::index, and N.

{
  if ( index>=N )  
    throw cms::Exception("LogicError") << "MultiGaussianStateTransform: index out of range";
  std::vector<TrajectoryStateOnSurface> tsosComponents(tsos.components());
  MultiGaussianState1D::SingleState1dContainer components;
  components.reserve(tsosComponents.size());
  for ( std::vector<TrajectoryStateOnSurface>::const_iterator i=tsosComponents.begin();
    i!=tsosComponents.end(); ++i ) {
    components.push_back(SingleGaussianState1D(i->localParameters().vector()(index),
                           i->localError().matrix()(index,index),
                           i->weight()));
  }
  return MultiGaussianState1D(components);
}

MultiGaussianState< MultiGaussianStateTransform::N > MultiGaussianStateTransform::outerMultiState

(

const reco::GsfTrack &

tk

)

Construct a MultiGaussianState from the reco::GsfTrack innermost state (local parameters)

Definition at line 9 of file MultiGaussianStateTransform.cc.

References reco::GsfTrack::gsfExtra(), and multiState().

{
  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return multiState(extra->outerStateLocalParameters(),
            extra->outerStateCovariances(),
            extra->outerStateWeights());
}

MultiGaussianState1D MultiGaussianStateTransform::outerMultiState1D	(	const reco::GsfTrack &	tk,
		unsigned int	index
	)

Construct a MultiGaussianState1D for the local parameter corresponding to "index" (0<=index<5) from the reco::GsfTrack outermost state

Definition at line 27 of file MultiGaussianStateTransform.cc.

References Exception, reco::GsfTrack::gsfExtra(), cmsHarvester::index, multiState1D(), and N.

{
  if ( index>=N )  
    throw cms::Exception("LogicError") << "MultiGaussianStateTransform: index out of range";

  const reco::GsfTrackExtraRef& extra(tk.gsfExtra());
  return multiState1D(extra->outerStateLocalParameters(),
              extra->outerStateCovariances(),
              extra->outerStateWeights(),
              index);
}

TrajectoryStateOnSurface MultiGaussianStateTransform::tsosFromSingleState	(	const SingleGaussianState< 5 > &	singleState,
		const TrajectoryStateOnSurface	refTsos
	)

Construct a TrajectoryStateOnSurface from a 5D SingleGaussianState (local parameters) and a reference TSOS (surface, charge, ..)

Definition at line 122 of file MultiGaussianStateTransform.cc.

References SingleGaussianState< N >::covariance(), TrajectoryStateOnSurface::localParameters(), TrajectoryStateOnSurface::magneticField(), SingleGaussianState< N >::mean(), LocalTrajectoryParameters::pzSign(), and TrajectoryStateOnSurface::surface().

{
  const LocalTrajectoryParameters& refPars(refTsos.localParameters());
  double pzSign = refPars.pzSign();
  bool charged = refPars.charge()!=0;
  LocalTrajectoryParameters pars(singleState.mean(),pzSign,charged);
  LocalTrajectoryError errs(singleState.covariance());
  // return state (doesn't use weight of the single state)
  return TrajectoryStateOnSurface(pars,errs,refTsos.surface(),refTsos.magneticField());
}