#include <Vertex_v1.h>
Public Member Functions | |
| Vertex_v1 () | |
| Default constructor. | |
| Vertex_v1 (const Vertex_v1 &other) | |
| Copy constructor. | |
| Vertex_v1 & | operator= (const Vertex_v1 &tp) |
| Assignment operator. This can involve creating and copying an Auxilary store, and so should be used sparingly. | |
| Type::ObjectType | type () const |
| A little helper function for identifying the type in template code. | |
| float | x () const |
| Returns the x position. | |
| void | setX (float value) |
| Sets the x position. | |
| float | y () const |
| Returns the y position. | |
| void | setY (float value) |
| Sets the y position. | |
| float | z () const |
| Returns the z position. | |
| void | setZ (float value) |
| Sets the z position. | |
| const std::vector< float > & | covariance () const |
| Returns the covariance matrix as a simple vector of values. | |
| void | setCovariance (const std::vector< float > &value) |
| Sets the covariance matrix as a simple vector of values. | |
| const Amg::Vector3D & | position () const |
| Returns the 3-pos. | |
| void | setPosition (const Amg::Vector3D &position) |
| Sets the 3-position. | |
| const | AmgSymMatrix (3)&covariancePosition() const |
| Returns the vertex covariance matrix. | |
| void | setCovariancePosition (const AmgSymMatrix(3)&covariancePosition) |
| Sets the vertex covariance matrix. | |
| VxType::VertexType | vertexType () const |
| The type of the vertex. | |
| void | setVertexType (VxType::VertexType vType) |
| Set the type of the vertex. | |
| std::vector < Trk::VxTrackAtVertex > & | vxTrackAtVertex () |
| Non-const access to the VxTrackAtVertex vector. | |
| const std::vector < Trk::VxTrackAtVertex > & | vxTrackAtVertex () const |
| Const access to the vector of tracks fitted to the vertex (may not exist!). | |
| bool | vxTrackAtVertexAvailable () const |
| Check if VxTrackAtVertices are attached to the object. | |
| void | resetCache () |
| Reset the internal cache of the object. | |
Track particle contents operations | |
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typedef std::vector < ElementLink < xAOD::TrackParticleContainer > > | TrackParticleLinks_t |
| Type for the associated track particles. | |
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typedef std::vector < ElementLink < xAOD::NeutralParticleContainer > > | NeutralParticleLinks_t |
| Type for the associated neutral particles. | |
| const TrackParticleLinks_t & | trackParticleLinks () const |
| Get all the particles associated with the vertex. | |
| void | setTrackParticleLinks (const TrackParticleLinks_t &trackParticles) |
| Set all track particle links at once. | |
| const std::vector< float > & | trackWeights () const |
| Get all the track weights. | |
| void | setTrackWeights (const std::vector< float > &weights) |
| Set all the track weights. | |
| const NeutralParticleLinks_t & | neutralParticleLinks () const |
| Get all the particles associated with the vertex. | |
| void | setNeutralParticleLinks (const NeutralParticleLinks_t &neutralParticles) |
| Set all neutral particle links at once. | |
| const std::vector< float > & | neutralWeights () const |
| Get all the neutral weights. | |
| void | setNeutralWeights (const std::vector< float > &weights) |
| Set all the neutral weights. | |
| const TrackParticle * | trackParticle (size_t i) const |
| Get the pointer to a given track that was used in vertex reco. | |
| float | trackWeight (size_t i) const |
| Get the weight of a given track in the vertex reconstruction. | |
| size_t | nTrackParticles () const |
| Get the number of tracks associated with this vertex. | |
| const NeutralParticle * | neutralParticle (size_t i) const |
| Get the pointer to a given neutral that was used in vertex reco. | |
| float | neutralWeight (size_t i) const |
| Get the weight of a given neutral in the vertex reconstruction. | |
| size_t | nNeutralParticles () const |
| Get the number of neutrals associated with this vertex. | |
| void | addTrackAtVertex (const ElementLink< TrackParticleContainer > &tr, float weight=1.0) |
| Add a new track to the vertex. | |
| void | addNeutralAtVertex (const ElementLink< NeutralParticleContainer > &tr, float weight=1.0) |
| Add a new neutral to the vertex. | |
| void | clearTracks () |
| Remove all tracks from the vertex. | |
| void | clearNeutrals () |
| Remove all neutrals from the vertex. | |
Fit quality functions | |
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| float | chiSquared () const |
Returns the  of the vertex fit as float. | |
| float | numberDoF () const |
| Returns the number of degrees of freedom of the vertex fit as float. | |
| void | setFitQuality (float chiSquared, float numberDoF) |
| Set the 'Fit Quality' information. | |
Class describing a Vertex.
| void xAOD::Vertex_v1::resetCache | ( | ) |
Reset the internal cache of the object.
This function is used by ROOT to reset the object after a new object was read into an existing memory location.
| const std::vector< Trk::VxTrackAtVertex > & xAOD::Vertex_v1::vxTrackAtVertex | ( | ) | const |
Const access to the vector of tracks fitted to the vertex (may not exist!).
This function can be used to access the Athena-only, reconstruction specific decoration on the object.
Keep in mind that this decoration is not available for most of the vertices. When calling this function on an object that doesn't have this decoration, an exception will be thrown. Use the vxTrackAtVertexAvailable() function to check if this function will succeed or not.
| std::vector< Trk::VxTrackAtVertex > & xAOD::Vertex_v1::vxTrackAtVertex | ( | ) |
Non-const access to the VxTrackAtVertex vector.
This function can be used to attach an Athena-only, reconstruction specific information to the object. The data is attached as a dynamic auxiliary property. And it needs to be explicitly disabled for writing out, as we don't have a valid dictionary for it. Not to mention that these objects are very large.
| bool xAOD::Vertex_v1::vxTrackAtVertexAvailable | ( | ) | const |
Check if VxTrackAtVertices are attached to the object.
This function can be used to check whether this Athena-only, reconstruction-specific decoration is available on the object. In most cases it isn't.
1.6.1
