ActsFatras::FreeParametersSmearer< generator_t, kSize > Struct Template Reference

#include <acts/blob/sPHENIX/Fatras/include/ActsFatras/Digitization/UncorrelatedHitSmearer.hpp>

Collaboration diagram for ActsFatras::FreeParametersSmearer< generator_t, kSize >:

Public Types
using	Scalar = Acts::ActsScalar
using	ParametersVector = Acts::ActsVector< kSize >
using	CovarianceMatrix = Acts::ActsSquareMatrix< kSize >
using	Result = Acts::Result< std::pair< ParametersVector, CovarianceMatrix >>

Public Member Functions
Result	operator() (generator_t &rng, const Hit &hit) const

Static Public Member Functions
static constexpr size_t	size ()

Public Attributes
std::array< Acts::FreeIndices, kSize >	indices {}
	Parameter indices that will be used to create the smeared measurements.
std::array < SingleParameterSmearFunction < generator_t >, kSize >	smearFunctions

Detailed Description

template<typename generator_t, size_t kSize>
struct ActsFatras::FreeParametersSmearer< generator_t, kSize >

Uncorrelated smearing algorithm for fast digitisation of free parameters.

Template Parameters

generator_t	Random number generator type
kSize	Number of smeared parameters

The smearer takes a single simulated Hit and generates a smeared parameter vector and associated covariance matrix.

Note

Uncorrelated smearing of the direction using each components individually is not recommended

Definition at line 114 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 114 of file UncorrelatedHitSmearer.hpp

Member Typedef Documentation

template<typename generator_t, size_t kSize>

using ActsFatras::FreeParametersSmearer< generator_t, kSize >::CovarianceMatrix = Acts::ActsSquareMatrix<kSize>

Definition at line 117 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 117 of file UncorrelatedHitSmearer.hpp

template<typename generator_t, size_t kSize>

using ActsFatras::FreeParametersSmearer< generator_t, kSize >::ParametersVector = Acts::ActsVector<kSize>

Definition at line 116 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 116 of file UncorrelatedHitSmearer.hpp

template<typename generator_t, size_t kSize>

using ActsFatras::FreeParametersSmearer< generator_t, kSize >::Result = Acts::Result<std::pair<ParametersVector, CovarianceMatrix>>

Definition at line 118 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 118 of file UncorrelatedHitSmearer.hpp

template<typename generator_t, size_t kSize>

using ActsFatras::FreeParametersSmearer< generator_t, kSize >::Scalar = Acts::ActsScalar

Definition at line 115 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 115 of file UncorrelatedHitSmearer.hpp

Member Function Documentation

template<typename generator_t, size_t kSize>

Result ActsFatras::FreeParametersSmearer< generator_t, kSize >::operator() ( generator_t &  rng, const Hit &  hit  ) const

inline

Generate smeared measured for configured parameters.

Parameters

rng	Random number generator
hit	Simulated hit

Returns

Smeared free parameter set wrapped in a Result<...> object

Return values

Smeared	parameters vector and associated covariance on success
Error	code for failure

Definition at line 133 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 133 of file UncorrelatedHitSmearer.hpp

References Acts::Test::cov, ActsFatras::Hit::direction(), Acts::eFreeDir0, Acts::eFreePos0, Acts::eFreeQOverP, Acts::eFreeTime, i, ActsFatras::FreeParametersSmearer< generator_t, kSize >::indices, ActsFatras::Hit::position(), conftest::rng(), ActsFatras::FreeParametersSmearer< generator_t, kSize >::smearFunctions, ActsFatras::Hit::time(), and value.

Here is the call graph for this function:

template<typename generator_t, size_t kSize>

static constexpr size_t ActsFatras::FreeParametersSmearer< generator_t, kSize >::size ( void  )

inlinestatic

Definition at line 124 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 124 of file UncorrelatedHitSmearer.hpp

Member Data Documentation

template<typename generator_t, size_t kSize>

std::array<Acts::FreeIndices, kSize> ActsFatras::FreeParametersSmearer< generator_t, kSize >::indices {}

Parameter indices that will be used to create the smeared measurements.

Definition at line 121 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 121 of file UncorrelatedHitSmearer.hpp

Referenced by BOOST_AUTO_TEST_CASE(), BOOST_DATA_TEST_CASE(), and ActsFatras::FreeParametersSmearer< generator_t, kSize >::operator()().

template<typename generator_t, size_t kSize>

std::array<SingleParameterSmearFunction<generator_t>, kSize> ActsFatras::FreeParametersSmearer< generator_t, kSize >::smearFunctions

Definition at line 122 of file UncorrelatedHitSmearer.hpp.

View newest version in sPHENIX GitHub at line 122 of file UncorrelatedHitSmearer.hpp

Referenced by BOOST_AUTO_TEST_CASE(), BOOST_DATA_TEST_CASE(), and ActsFatras::FreeParametersSmearer< generator_t, kSize >::operator()().

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

• acts/blob/sPHENIX/Fatras/include/ActsFatras/Digitization/UncorrelatedHitSmearer.hpp