#include <acts/blob/master/Fatras/include/ActsFatras/Kernel/Simulator.hpp>

Classes
struct	FailedParticle
	A particle that failed to simulate. More...

Public Member Functions
	Simulator (charged_simulator_t &&charged_, neutral_simulator_t &&neutral_)
	Construct from the single charged/neutral particle simulators.

template<typename generator_t , typename input_particles_t , typename output_particles_t , typename hits_t >
Acts::Result< std::vector < FailedParticle > >	simulate (const Acts::GeometryContext &geoCtx, const Acts::MagneticFieldContext &magCtx, generator_t &generator, const input_particles_t &inputParticles, output_particles_t &simulatedParticlesInitial, output_particles_t &simulatedParticlesFinal, hits_t &hits) const

Public Attributes
charged_selector_t	selectCharged

neutral_selector_t	selectNeutral

charged_simulator_t	charged

neutral_simulator_t	neutral

Private Member Functions
bool	selectParticle (const Particle &particle) const

template<typename particles_t , typename hits_t >
void	copyOutputs (const InteractorResult &result, particles_t &particlesInitial, particles_t &particlesFinal, hits_t &hits) const

Static Private Member Functions
template<typename particles_t >
static void	renumberTailParticleIds (particles_t &particles, std::size_t lastValid)

Detailed Description

template<typename charged_selector_t, typename charged_simulator_t, typename neutral_selector_t, typename neutral_simulator_t>
struct ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >

Fatras multi-particle simulator.

Template Parameters

charged_selector_t	Callable selector type for charged particles
charged_simulator_t	Single particle simulator for charged particles
neutral_selector_t	Callable selector type for neutral particles
neutral_simulator_t	Single particle simulator for neutral particles

Definition at line 132 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 132 of file Simulator.hpp

Constructor & Destructor Documentation

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::Simulator	(	charged_simulator_t &&	charged_,
		neutral_simulator_t &&	neutral_
	)

inline

Construct from the single charged/neutral particle simulators.

Definition at line 151 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 151 of file Simulator.hpp

Member Function Documentation

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

template<typename particles_t , typename hits_t >

void ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::copyOutputs	(	const InteractorResult &	result,
		particles_t &	particlesInitial,
		particles_t &	particlesFinal,
		hits_t &	hits
	)		const

inlineprivate

Copy Interactor results to output containers.

Template Parameters

particles_t	is a SequenceContainer for particles
hits_t	is a SequenceContainer for hits

Definition at line 285 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 285 of file Simulator.hpp

References field_utils::copy(), ActsFatras::InteractorResult::generatedParticles, ActsFatras::InteractorResult::hits, particle, ActsFatras::InteractorResult::particle, and ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectParticle().

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

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template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

template<typename particles_t >

static void ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::renumberTailParticleIds	(	particles_t &	particles,
		std::size_t	lastValid
	)

inlinestaticprivate

Renumber particle ids in the tail of the container.

Ensures particle ids are unique by modifying the sub-particle number within each generation.

Parameters

particles	particle container in which particles are renumbered
lastValid	index of the last particle with a valid particle id

Template Parameters

particles_t is a SequenceContainer for particles

Note: This function assumes that all particles in the tail have the same vertex numbers (primary/secondary) and particle number and are ordered according to their generation number.

Definition at line 314 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 314 of file Simulator.hpp

References Acts::UnitConstants::u.

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

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template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

bool ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectParticle ( const Particle & particle ) const

inlineprivate

Select if the particle should be simulated at all.

This also enforces mutual-exclusivity of the two charge selections. If both charge selections evaluate true, they are probably not setup correctly and not simulating them at all is a reasonable fall-back.

Definition at line 272 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 272 of file Simulator.hpp

References ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectCharged, and ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectNeutral.

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::copyOutputs(), and ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

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template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

template<typename generator_t , typename input_particles_t , typename output_particles_t , typename hits_t >

Acts::Result<std::vector<FailedParticle> > ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate	(	const Acts::GeometryContext &	geoCtx,
		const Acts::MagneticFieldContext &	magCtx,
		generator_t &	generator,
		const input_particles_t &	inputParticles,
		output_particles_t &	simulatedParticlesInitial,
		output_particles_t &	simulatedParticlesFinal,
		hits_t &	hits
	)		const

inline

Simulate multiple particles and generated secondaries.

Parameters

geoCtx	is the geometry context to access surface geometries
magCtx	is the magnetic field context to access field values
inputParticles	contains all particles that should be simulated
simulatedParticlesInitial	contains initial particle states
simulatedParticlesFinal	contains final particle states
hits	contains all generated hits

Return values

Acts::Result::Error	if there is a fundamental issue
Acts::Result::Success	with all particles that failed to simulate

Warning: Particle-hit association is based on particle ids generated during the simulation. This requires that all input particles must have generation and sub-particle number set to zero.

Note: Parameter edge-cases can lead to errors in the underlying propagator and thus to particles that fail to simulate. Here, full events are simulated and the failure to simulate one particle should not be considered a general failure of the simulator. Instead, a list of particles that fail to simulate is provided to the user. It is the users responsibility to handle them.; Failed particles are removed from the regular output, i.e. they do not appear in the simulated particles containers nor do they generate hits.

This takes all input particles and simulates those passing the selection using the appropriate simulator. All selected particle states including additional ones generated from interactions are stored in separate output containers; both the initial state at the production vertex and the final state after propagation are stored. Hits generated from selected input and generated particles are stored in the hit container.

Template Parameters

generator_t	is the type of the random number generator
input_particles_t	is a Container for particles
output_particles_t	is a SequenceContainer for particles
hits_t	is a SequenceContainer for hits

Definition at line 191 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 191 of file Simulator.hpp

References ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::charged, ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::copyOutputs(), hits(), ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::neutral, ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::renumberTailParticleIds(), ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectCharged, ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectParticle(), and Acts::UnitConstants::u.

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Member Data Documentation

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

charged_simulator_t ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::charged

Definition at line 147 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 147 of file Simulator.hpp

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

neutral_simulator_t ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::neutral

Definition at line 148 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 148 of file Simulator.hpp

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

charged_selector_t ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectCharged

Definition at line 145 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 145 of file Simulator.hpp

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectParticle(), and ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::simulate().

template<typename charged_selector_t , typename charged_simulator_t , typename neutral_selector_t , typename neutral_simulator_t >

neutral_selector_t ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectNeutral

Definition at line 146 of file Simulator.hpp.

View newest version in sPHENIX GitHub at line 146 of file Simulator.hpp

Referenced by ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >::selectParticle().

The documentation for this struct was generated from the following file:

acts/blob/master/Fatras/include/ActsFatras/Kernel/Simulator.hpp

Classes

Public Member Functions

Public Attributes

Private Member Functions

Static Private Member Functions

Detailed Description

template<typename charged_selector_t, typename charged_simulator_t, typename neutral_selector_t, typename neutral_simulator_t> struct ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename charged_selector_t, typename charged_simulator_t, typename neutral_selector_t, typename neutral_simulator_t>
struct ActsFatras::Simulator< charged_selector_t, charged_simulator_t, neutral_selector_t, neutral_simulator_t >