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#include <TrajectoryStateClosestToPoint.h>
Trajectory state defined at a given point on the helix, which is the point of closest approach to the reference point. In addition to the FreeTrajectoryState at that point, it also gives the perigee parameters. This state can also be invalid, e.g. in case the propagation was not successful.
Definition at line 18 of file TrajectoryStateClosestToPoint.h.
typedef FreeTrajectoryState TrajectoryStateClosestToPoint::FTS [private] |
Definition at line 21 of file TrajectoryStateClosestToPoint.h.
typedef TrajectoryStateOnSurface TrajectoryStateClosestToPoint::TSOS [private] |
Definition at line 20 of file TrajectoryStateClosestToPoint.h.
| TrajectoryStateClosestToPoint::TrajectoryStateClosestToPoint | ( | ) | [inline] |
parameter dimension
Definition at line 26 of file TrajectoryStateClosestToPoint.h.
:
valid(false), theFTSavailable(false), errorIsAvailable(false) {}
| TrajectoryStateClosestToPoint::TrajectoryStateClosestToPoint | ( | const PerigeeTrajectoryParameters & | perigeeParameters, |
| double | pt, | ||
| const GlobalPoint & | referencePoint, | ||
| const MagneticField * | field | ||
| ) | [inline] |
Public constructor, which is used to convert perigee parameters to a FreeTrajectoryState. For the case where no error is provided.
Definition at line 34 of file TrajectoryStateClosestToPoint.h.
:
theField(field), theRefPoint(referencePoint),
theParameters(perigeeParameters), thePt( pt ),
valid(true), theFTSavailable(false), errorIsAvailable(false)
{}
| TrajectoryStateClosestToPoint::TrajectoryStateClosestToPoint | ( | const PerigeeTrajectoryParameters & | perigeeParameters, |
| double | pt, | ||
| const PerigeeTrajectoryError & | perigeeError, | ||
| const GlobalPoint & | referencePoint, | ||
| const MagneticField * | field | ||
| ) | [inline] |
Public constructor, which is used to convert perigee parameters to a FreeTrajectoryState. For the case where an error is provided.
Definition at line 46 of file TrajectoryStateClosestToPoint.h.
:
theField(field), theRefPoint(referencePoint),
theParameters(perigeeParameters), thePt( pt ), thePerigeeError(perigeeError),
valid(true), theFTSavailable(false), errorIsAvailable(true){}
| TrajectoryStateClosestToPoint::TrajectoryStateClosestToPoint | ( | const FTS & | originalFTS, |
| const GlobalPoint & | referencePoint | ||
| ) |
Use the appropriate TrajectoryStateClosestToPointBuilder to get access to this constructor
Definition at line 7 of file TrajectoryStateClosestToPoint.cc.
References cms::Exception::category(), errorIsAvailable, cms::Exception::explainSelf(), PerigeeConversions::ftsToPerigeeError(), PerigeeConversions::ftsToPerigeeParameters(), FreeTrajectoryState::hasError(), GlobalTrajectoryParameters::magneticField(), FreeTrajectoryState::parameters(), theField, theFTS, theParameters, thePerigeeError, thePt, and valid.
: theFTS(originalFTS), theRefPoint(referencePoint),valid(true), theFTSavailable(true) { try { theParameters = PerigeeConversions::ftsToPerigeeParameters(originalFTS, referencePoint, thePt); if (theFTS.hasError()) { thePerigeeError = PerigeeConversions::ftsToPerigeeError(originalFTS); errorIsAvailable = true; } else { errorIsAvailable = false; } theField = &(originalFTS.parameters().magneticField()); } catch (const cms::Exception &ex) { if (ex.category() != "PerigeeConversions") throw; edm::LogWarning("TrajectoryStateClosestToPoint_PerigeeConversions") << "Caught exception " << ex.explainSelf() << ".\n"; valid = false; } }
| void TrajectoryStateClosestToPoint::calculateFTS | ( | ) | const |
Definition at line 28 of file TrajectoryStateClosestToPoint.cc.
References PerigeeTrajectoryParameters::charge(), PerigeeConversions::curvilinearError(), errorIsAvailable, isValid(), PerigeeConversions::momentumFromPerigee(), PerigeeConversions::positionFromPerigee(), theField, theFTS, theFTSavailable, theParameters, thePerigeeError, thePt, and theRefPoint.
Referenced by theState().
{
if(!isValid()) throw TrajectoryStateException("TrajectoryStateClosestToPoint is invalid and cannot return any parameters");
GlobalTrajectoryParameters gtp(
PerigeeConversions::positionFromPerigee(theParameters, theRefPoint),
PerigeeConversions::momentumFromPerigee(theParameters, thePt, theRefPoint),
theParameters.charge(), theField);
if (errorIsAvailable) {
theFTS = FTS(gtp, PerigeeConversions::curvilinearError(thePerigeeError, gtp));
} else {
theFTS = FTS(gtp);
}
theFTSavailable = true;
}
| TrackCharge TrajectoryStateClosestToPoint::charge | ( | void | ) | const [inline] |
Definition at line 101 of file TrajectoryStateClosestToPoint.h.
References PerigeeTrajectoryParameters::charge(), and theParameters.
Referenced by PhysicsObjectsMonitor::analyze(), and TestOutliers::analyze().
{
return theParameters.charge();
}
| bool TrajectoryStateClosestToPoint::hasError | ( | void | ) | const [inline] |
tells whether the error of the perigee parameters is available.
Definition at line 116 of file TrajectoryStateClosestToPoint.h.
References errorIsAvailable.
Referenced by HLTMuon::analyze(), and MatcherUsingTracksAlgorithm::getChi2().
{
return errorIsAvailable;
}
| bool TrajectoryStateClosestToPoint::isValid | ( | void | ) | const [inline] |
Tells whether the state is valid or not
Definition at line 123 of file TrajectoryStateClosestToPoint.h.
References valid.
Referenced by HLTMuon::analyze(), calculateFTS(), V0Fitter::fitAll(), HLTMuonTrimuonL3Filter::hltFilter(), HLTMuonTrackMassFilter::hltFilter(), HLTMuonDimuonL3Filter::hltFilter(), reco::modules::DuplicateTrackMerger::produce(), and MuonUpdatorAtVertex::propagateToNominalLine().
{
return valid;
}
| GlobalVector TrajectoryStateClosestToPoint::momentum | ( | ) | const [inline] |
Definition at line 96 of file TrajectoryStateClosestToPoint.h.
References PerigeeConversions::momentumFromPerigee(), theParameters, thePt, and theRefPoint.
Referenced by PhysicsObjectsMonitor::analyze(), V0Fitter::fitAll(), MatcherUsingTracksAlgorithm::matchWithPropagation(), and reco::modules::DuplicateTrackMerger::produce().
{
return PerigeeConversions::momentumFromPerigee(theParameters, thePt, theRefPoint);
}
| const PerigeeTrajectoryError& TrajectoryStateClosestToPoint::perigeeError | ( | ) | const [inline] |
returns the error of the perigee parameters if it is available
Definition at line 83 of file TrajectoryStateClosestToPoint.h.
References thePerigeeError.
Referenced by HLTMuon::analyze(), PerigeeRefittedTrackState::covariance(), VertexFitterResult::fill(), and MatcherUsingTracksAlgorithm::getChi2().
{
return thePerigeeError;
}
| const PerigeeTrajectoryParameters& TrajectoryStateClosestToPoint::perigeeParameters | ( | ) | const [inline] |
returns the perigee parameters at the p.c.a. to the reference point.
Definition at line 68 of file TrajectoryStateClosestToPoint.h.
References theParameters.
Referenced by HLTMuon::analyze(), MatcherUsingTracksAlgorithm::getChi2(), and PerigeeRefittedTrackState::parameters().
{
return theParameters;
}
| GlobalPoint TrajectoryStateClosestToPoint::position | ( | void | ) | const [inline] |
returns the state defined at the point of closest approach to the reference point.
Definition at line 91 of file TrajectoryStateClosestToPoint.h.
References PerigeeConversions::positionFromPerigee(), theParameters, and theRefPoint.
Referenced by compEcalEnergySum(), compHcalEnergySum(), and MatcherUsingTracksAlgorithm::matchWithPropagation().
{
return PerigeeConversions::positionFromPerigee(theParameters, theRefPoint);
}
| double TrajectoryStateClosestToPoint::pt | ( | ) | const [inline] |
returns the transverse momentum magnitude
Definition at line 75 of file TrajectoryStateClosestToPoint.h.
References thePt.
Referenced by reco::modules::DuplicateTrackMerger::produce().
{
return thePt;
}
| const GlobalPoint& TrajectoryStateClosestToPoint::referencePoint | ( | ) | const [inline] |
returns the reference point which used to construct the state. It is thus the point with respect to which the impact parameters are defined.
Definition at line 59 of file TrajectoryStateClosestToPoint.h.
References theRefPoint.
Referenced by MatcherUsingTracksAlgorithm::getChi2(), and PerigeeRefittedTrackState::position().
{
return theRefPoint;
}
| const FreeTrajectoryState& TrajectoryStateClosestToPoint::theState | ( | ) | const [inline] |
Definition at line 106 of file TrajectoryStateClosestToPoint.h.
References calculateFTS(), theFTS, and theFTSavailable.
Referenced by ValidationMisalignedTracker::analyze(), HLTMuon::analyze(), PhysicsObjectsMonitor::analyze(), TestOutliers::analyze(), pat::LeptonVertexSignificance::calculate(), V0Fitter::fitAll(), PerigeeRefittedTrackState::freeTrajectoryState(), HLTMuonTrimuonL3Filter::hltFilter(), HLTMuonTrackMassFilter::hltFilter(), HLTMuonDimuonL3Filter::hltFilter(), TransientTrackKinematicStateBuilder::operator()(), KinematicParticleFactoryFromTransientTrack::particle(), reco::modules::DuplicateTrackMerger::produce(), MuonUpdatorAtVertex::propagateToNominalLine(), TrackClassifier::reconstructionInformation(), and PerigeeRefittedTrackState::trajectoryStateOnSurface().
{
if (!theFTSavailable) calculateFTS();
return theFTS;
}
friend class TrajectoryStateClosestToPointBuilder [friend] |
Definition at line 129 of file TrajectoryStateClosestToPoint.h.
bool TrajectoryStateClosestToPoint::errorIsAvailable [private] |
Definition at line 152 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), hasError(), and TrajectoryStateClosestToPoint().
const MagneticField* TrajectoryStateClosestToPoint::theField [private] |
Definition at line 142 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), and TrajectoryStateClosestToPoint().
FTS TrajectoryStateClosestToPoint::theFTS [mutable, private] |
Definition at line 144 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), theState(), and TrajectoryStateClosestToPoint().
bool TrajectoryStateClosestToPoint::theFTSavailable [mutable, private] |
Definition at line 151 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), and theState().
Definition at line 147 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), charge(), momentum(), perigeeParameters(), position(), and TrajectoryStateClosestToPoint().
Definition at line 149 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), perigeeError(), and TrajectoryStateClosestToPoint().
double TrajectoryStateClosestToPoint::thePt [private] |
Definition at line 148 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), momentum(), pt(), and TrajectoryStateClosestToPoint().
Definition at line 146 of file TrajectoryStateClosestToPoint.h.
Referenced by calculateFTS(), momentum(), position(), and referencePoint().
bool TrajectoryStateClosestToPoint::valid [private] |
Definition at line 150 of file TrajectoryStateClosestToPoint.h.
Referenced by isValid(), and TrajectoryStateClosestToPoint().
1.7.3