class Rivet::EventMixingBase

Rivet::EventMixingBase #

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#include <EventMixingFinalState.hh>

Inherits from Rivet::Projection, Rivet::ProjectionApplier

Inherited by Rivet::EventMixingCentrality, Rivet::EventMixingFinalState

Public Functions ##

Protected Functions ##

Protected Attributes ##

Additional inherited members ##

Public Functions inherited from Rivet::Projection

Protected Functions inherited from Rivet::Projection

Friends inherited from Rivet::Projection

Public Functions inherited from Rivet::ProjectionApplier

Detailed Description ##

class Rivet::EventMixingBase;

EventMixingBase is the base class for event mixing projections.

Most methods are defined in this base class as they should. In order to use it, a derived class should be implemented where:

• The constructor is reimplmented, giving the derived projection type from which the mixing observable is calculated. The constructor must also be declared public in the derived class.
• The calculateMixingObs is implemented. To examples of such derived classes are given below, 1) EventMixingFinalState, where the mixing observable are calculated on a multiplicity of a charged final state, and: 2) EventMixingCentrality, where the mixing observable is centrality.

Public Functions Documentation ##

function beamPairs ##

virtual const std::set< PdgIdPair > beamPairs() const

Todo: Remove the beam constraints system from projections.

Return the allowed beam pairs on which this projection can operate, not including recursion. Derived classes should ensure that all contained projections are registered in the _projections set for the beam constraint chaining to work.

function addPdgIdPair ##

inline Projection & addPdgIdPair(
    PdgId beam1,
    PdgId beam2
)

Todo: This deserves a better name!

Add a colliding beam pair.

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const Projection & proj
) const

Deprecated:

Prefer the simpler apply<> form

Apply the supplied projection on event evt.

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const PROJ & proj
) const

Deprecated:

Prefer the simpler apply<> form

Apply the supplied projection on event evt.

function applyProjection ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > applyProjection(
    const Event & evt,
    const std::string & name
) const

Deprecated:

Prefer the simpler apply<> form

Apply the named projection on event evt.

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const Projection & proj
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const PROJ & proj
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const Event & evt,
    const std::string & name
) const

Apply the supplied projection on event evt (user-facing alias).

function apply ##

template <typename PROJ  =Projection>
inline std::enable_if_t< std::is_base_of< Projection, PROJ >::value, const PROJ & > apply(
    const std::string & name,
    const Event & evt
) const

Apply the supplied projection on event evt (convenience arg-reordering alias).

function markAsOwned ##

inline void markAsOwned() const

Mark this object as owned by a proj-handler.

function clone ##

virtual unique_ptr< Projection > clone() const =0

Clone on the heap.

Reimplemented by: Rivet::ALICE::V0Multiplicity::clone, Rivet::ALICE::CLMultiplicity::clone, Rivet::ALICE::V0Trigger::clone, Rivet::ALICE::V0AndTrigger::clone, Rivet::ALICE::PrimaryParticles::clone, Rivet::AxesDefinition::clone, Rivet::FastJets::clone, Rivet::ChargedFinalState::clone

function name ##

inline virtual std::string name() const

Get the name of the projection.

Reimplements: Rivet::ProjectionApplier::name

function valid ##

inline bool valid() const

Get the state of the projetion.

function failed ##

inline bool failed() const

Get the state of the projetion.

function before ##

bool before(
    const Projection & p
) const

Determine whether this object should be ordered before the object p given as argument. If p is of a different class than this, the before() function of the corresponding type_info objects is used. Otherwise, if the objects are of the same class, the virtual compare(const Projection &) will be returned.

function getProjections ##

inline std::set< ConstProjectionPtr > getProjections() const

Get the contained projections, including recursion.

function hasProjection ##

inline bool hasProjection(
    const std::string & name
) const

Does this applier have a projection registered under the name name?

function getProjection ##

template <typename PROJ >
inline const PROJ & getProjection(
    const std::string & name
) const

Todo: Add SFINAE to require that PROJ inherit from Projection

Get the named projection, specifying return type via a template argument.

function getProjection ##

inline const Projection & getProjection(
    const std::string & name
) const

Get the named projection (non-templated, so returns as a reference to a Projection base class).

function get ##

template <typename PROJ >
inline const PROJ & get(
    const std::string & name
) const

Todo: Add SFINAE to require that PROJ inherit from Projection

Get the named projection, specifying return type via a template argument (user-facing alias).

function hasMixingEvents ##

inline bool hasMixingEvents() const

function getMixingEvents ##

inline vector< MixEvent > getMixingEvents() const

function particles ##

inline virtual const Particles particles() const

Protected Functions Documentation ##

function getLog ##

inline Log & getLog() const

Get a Log object based on the getName() property of the calling projection object.

function setName ##

inline void setName(
    const std::string & name
)

Used by derived classes to set their name.

function fail ##

inline void fail()

Set the projection in an unvalid state.

function mkNamedPCmp ##

Cmp< Projection > mkNamedPCmp(
    const Projection & otherparent,
    const std::string & pname
) const

Shortcut to make a named Cmp comparison with the *this object automatically passed as one of the parent projections.

function mkPCmp ##

Cmp< Projection > mkPCmp(
    const Projection & otherparent,
    const std::string & pname
) const

Note: Alias for mkNamedPCmp

Shortcut to make a named Cmp comparison with the *this object automatically passed as one of the parent projections.

function getProjHandler ##

inline ProjectionHandler & getProjHandler() const

Get a reference to the ProjectionHandler for this thread.

function declareProjection ##

template <typename PROJ >
inline const PROJ & declareProjection(
    const PROJ & proj,
    const std::string & name
)

Register a contained projection.

Todo: Add SFINAE to require that PROJ inherit from Projection

The type of the argument is used to instantiate a new projection internally: this new object is applied to events rather than the argument object. Hence you are advised to only use locally-scoped Projection objects in your Projection and Analysis constructors, and to avoid polymorphism (e.g. handling ConcreteProjection via a pointer or reference to type Projection) since this will screw up the internal type management.

function declare ##

template <typename PROJ >
inline const PROJ & declare(
    const PROJ & proj,
    const std::string & name
)

Register a contained projection (user-facing version)

Todo: Add SFINAE to require that PROJ inherit from Projection

function declare ##

template <typename PROJ >
inline const PROJ & declare(
    const std::string & name,
    const PROJ & proj
)

Register a contained projection (user-facing, arg-reordered version)

Todo: Add SFINAE to require that PROJ inherit from Projection

function EventMixingBase ##

inline EventMixingBase(
    const Projection & mixObsProj,
    const ParticleFinder & mix,
    size_t nMixIn,
    double oMin,
    double oMax,
    double deltao,
    const size_t defaultIdx
)

function calculateMixingObs ##

virtual void calculateMixingObs(
    const Projection * mProj
) =0

Reimplemented by: Rivet::EventMixingFinalState::calculateMixingObs, Rivet::EventMixingCentrality::calculateMixingObs

function project ##

inline virtual void project(
    const Event & e
)

Perform the projection on the Event.

Reimplements: Rivet::AxesDefinition::project

function compare ##

inline virtual CmpState compare(
    const Projection & p
) const

Compare with other projections.

Reimplements: Rivet::AxesDefinition::compare

Protected Attributes Documentation ##

variable mObs ##

double mObs;

The mixing observable of the current event.

Updated on 2022-08-07 at 20:17:16 +0100