Event I/O handler class for the dd4hep event display. More...

#include <DDG4EventHandler.h>

Inheritance diagram for dd4hep::DDG4EventHandler:

Public Types
typedef std::map< std::string, std::pair< TBranch , void > >	Branches

typedef void (	ParticleAccessor_t) (void , DDEveParticle )

typedef void (	HitAccessor_t) (void , DDEveHit )

Public Types inherited from dd4hep::EventHandler
enum	CollectionType { NO_COLLECTION =1<<0, PARTICLE_COLLECTION =1<<1, TRACK_COLLECTION =1<<2, CALO_HIT_COLLECTION =1<<3, TRACKER_HIT_COLLECTION =1<<4, HIT_COLLECTION =CALO_HIT_COLLECTION\|TRACKER_HIT_COLLECTION }

typedef std::pair< const char *, size_t >	Collection
	Collection definition: name, size. More...

typedef std::map< std::string, std::vector< Collection > >	TypedEventCollections
	Types collection: collections are grouped by type (class name) More...

Public Member Functions
	DDG4EventHandler ()
	Standard constructor. More...

virtual	~DDG4EventHandler ()
	Default destructor. More...

virtual const TypedEventCollections &	data () const override
	Access the map of simulation data collections. More...

virtual long	numEvents () const override
	Access the number of events on the current input data source (-1 if no data source connected) More...

std::string	datasourceName () const override
	Access the data source name. More...

virtual CollectionType	collectionType (const std::string &collection) const override
	Access to the collection type by name. More...

virtual size_t	collectionLoop (const std::string &collection, DDEveHitActor &actor) override
	Call functor on hit collection. More...

virtual size_t	collectionLoop (const std::string &collection, DDEveParticleActor &actor) override
	Loop over collection and extract particle data. More...

virtual bool	Open (const std::string &type, const std::string &file_name) override
	Open new data file. More...

virtual bool	NextEvent () override
	User overloadable function: Load the next event. More...

virtual bool	PreviousEvent () override
	User overloadable function: Load the previous event. More...

virtual bool	GotoEvent (long event_number) override
	Goto a specified event in the file. More...

Int_t	ReadEvent (Long64_t n)
	Load the specified event. More...

	ClassDefOverride (DDG4EventHandler, 0)

Public Member Functions inherited from dd4hep::EventHandler
	EventHandler ()=default
	Standard constructor. More...

virtual	~EventHandler ()
	Default destructor. More...

virtual bool	hasEvent () const
	Check if an event is present in memory. More...

virtual bool	hasFile () const
	Check if a data file is connected to the handler. More...

	ClassDef (EventHandler, 0)

Protected Attributes
std::pair< TFile , TTree >	m_file
	Reference to data file. More...

Branches	m_branches
	Branch map. More...

Long64_t	m_entry
	File entry number. More...

HitAccessor_t	m_simhitConverter
	Function pointer to interprete hits. More...

ParticleAccessor_t	m_particleConverter
	Function pointer to interprete particles. More...

TypedEventCollections	m_data
	Data collection map. More...

Protected Attributes inherited from dd4hep::EventHandler
bool	m_hasFile = false
	Flag to indicate that a file is opened. More...

bool	m_hasEvent = false
	Flag to indicate that an event is loaded. More...

Detailed Description

Event I/O handler class for the dd4hep event display.

Definition at line 38 of file DDG4EventHandler.h.

Member Typedef Documentation

◆ Branches

typedef std::map<std::string,std::pair<TBranch*,void*> > dd4hep::DDG4EventHandler::Branches

Definition at line 40 of file DDG4EventHandler.h.

◆ HitAccessor_t

typedef void*(* dd4hep::DDG4EventHandler::HitAccessor_t) (void *, DDEveHit *)

Definition at line 42 of file DDG4EventHandler.h.

◆ ParticleAccessor_t

typedef void*(* dd4hep::DDG4EventHandler::ParticleAccessor_t) (void *, DDEveParticle *)

Definition at line 41 of file DDG4EventHandler.h.

Constructor & Destructor Documentation

◆ DDG4EventHandler()

DDG4EventHandler::DDG4EventHandler ( )

Standard constructor.

Definition at line 47 of file DDG4EventHandler.cpp.

◆ ~DDG4EventHandler()

DDG4EventHandler::~DDG4EventHandler ( )

virtual

Default destructor.

Definition at line 61 of file DDG4EventHandler.cpp.

Member Function Documentation

◆ ClassDefOverride()

dd4hep::DDG4EventHandler::ClassDefOverride	(	DDG4EventHandler	,
		0
	)

◆ collectionLoop() [1/2]

size_t DDG4EventHandler::collectionLoop	(	const std::string &	collection,
		DDEveHitActor &	actor
	)

overridevirtual

Call functor on hit collection.

Implements dd4hep::EventHandler.

Definition at line 118 of file DDG4EventHandler.cpp.

◆ collectionLoop() [2/2]

size_t DDG4EventHandler::collectionLoop	(	const std::string &	collection,
		DDEveParticleActor &	actor
	)

overridevirtual

Loop over collection and extract particle data.

Implements dd4hep::EventHandler.

Definition at line 138 of file DDG4EventHandler.cpp.

◆ collectionType()

EventHandler::CollectionType DDG4EventHandler::collectionType ( const std::string & collection ) const

overridevirtual

Access to the collection type by name.

Implements dd4hep::EventHandler.

Definition at line 102 of file DDG4EventHandler.cpp.

◆ data()

virtual const TypedEventCollections& dd4hep::DDG4EventHandler::data ( ) const

inlineoverridevirtual

Access the map of simulation data collections.

Implements dd4hep::EventHandler.

Definition at line 63 of file DDG4EventHandler.h.

◆ datasourceName()

std::string DDG4EventHandler::datasourceName ( ) const

overridevirtual

Access the data source name.

Implements dd4hep::EventHandler.

Definition at line 94 of file DDG4EventHandler.cpp.

◆ GotoEvent()

bool DDG4EventHandler::GotoEvent ( long event_number )

overridevirtual

Goto a specified event in the file.

Implements dd4hep::EventHandler.

Definition at line 81 of file DDG4EventHandler.cpp.

◆ NextEvent()

bool DDG4EventHandler::NextEvent ( )

overridevirtual

User overloadable function: Load the next event.

Load the next event.

Implements dd4hep::EventHandler.

Definition at line 71 of file DDG4EventHandler.cpp.

◆ numEvents()

long DDG4EventHandler::numEvents ( ) const

overridevirtual

Access the number of events on the current input data source (-1 if no data source connected)

Implements dd4hep::EventHandler.

Definition at line 86 of file DDG4EventHandler.cpp.

◆ Open()

bool DDG4EventHandler::Open	(	const std::string &	type,
		const std::string &	file_name
	)

overridevirtual

Open new data file.

Implements dd4hep::EventHandler.

Definition at line 189 of file DDG4EventHandler.cpp.

◆ PreviousEvent()

bool DDG4EventHandler::PreviousEvent ( )

overridevirtual

User overloadable function: Load the previous event.

Load the previous event.

Implements dd4hep::EventHandler.

Definition at line 76 of file DDG4EventHandler.cpp.

◆ ReadEvent()

Int_t DDG4EventHandler::ReadEvent ( Long64_t n )

Load the specified event.

Definition at line 158 of file DDG4EventHandler.cpp.

Member Data Documentation

◆ m_branches

Branches dd4hep::DDG4EventHandler::m_branches

protected

Branch map.

Definition at line 47 of file DDG4EventHandler.h.

◆ m_data

TypedEventCollections dd4hep::DDG4EventHandler::m_data

protected

Data collection map.

Definition at line 55 of file DDG4EventHandler.h.

◆ m_entry

Long64_t dd4hep::DDG4EventHandler::m_entry

protected

File entry number.

Definition at line 49 of file DDG4EventHandler.h.

◆ m_file

std::pair<TFile*,TTree*> dd4hep::DDG4EventHandler::m_file

protected

Reference to data file.

Definition at line 45 of file DDG4EventHandler.h.

◆ m_particleConverter

ParticleAccessor_t dd4hep::DDG4EventHandler::m_particleConverter

protected

Function pointer to interprete particles.

Definition at line 53 of file DDG4EventHandler.h.

◆ m_simhitConverter

HitAccessor_t dd4hep::DDG4EventHandler::m_simhitConverter

protected

Function pointer to interprete hits.

Definition at line 51 of file DDG4EventHandler.h.

The documentation for this class was generated from the following files:

DDEve/include/DDEve/DDG4EventHandler.h
DDEve/src/DDG4EventHandler.cpp

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ Branches

◆ HitAccessor_t

◆ ParticleAccessor_t

Constructor & Destructor Documentation

◆ DDG4EventHandler()

◆ ~DDG4EventHandler()

Member Function Documentation

◆ ClassDefOverride()

◆ collectionLoop() [1/2]

◆ collectionLoop() [2/2]

◆ collectionType()

◆ data()

◆ datasourceName()

◆ GotoEvent()

◆ NextEvent()

◆ numEvents()

◆ Open()

◆ PreviousEvent()

◆ ReadEvent()

Member Data Documentation

◆ m_branches

◆ m_data

◆ m_entry

◆ m_file

◆ m_particleConverter

◆ m_simhitConverter