Gaudi::Example::TinyExperiment::DigitizationAlg Class Reference

Digitization algorithm returning a set of hits from MCHits, basically adding noise. More...

Inheritance diagram for Gaudi::Example::TinyExperiment::DigitizationAlg:

Collaboration diagram for Gaudi::Example::TinyExperiment::DigitizationAlg:

Public Member Functions
	DigitizationAlg (const std::string &name, ISvcLocator *pSvcLocator)
Hits	operator() (const EventContext &ctx, MCHits const &mcHits) const override

Private Attributes
ServiceHandle< IRandomGenSvc >	m_rndSvc
Gaudi::Property< float >	m_sigmaNoise
Gaudi::Accumulators::Counter	n_hits { this, "Number of Hits" }

Detailed Description

Digitization algorithm returning a set of hits from MCHits, basically adding noise.

Definition at line 26 of file DigitizationAlg.cpp.

Constructor & Destructor Documentation

DigitizationAlg()

Gaudi::Example::TinyExperiment::DigitizationAlg::DigitizationAlg ( const std::string & name, ISvcLocator * pSvcLocator )

inline

Definition at line 28 of file DigitizationAlg.cpp.

        : Transformer( name, pSvcLocator, { { "MCHitsLocation", "/Event/MCHits" } },
                       { "HitsLocation", "/Event/Hits" } ) {}

Member Function Documentation

operator()()

Hits Gaudi::Example::TinyExperiment::DigitizationAlg::operator() ( const EventContext & ctx, MCHits const & mcHits ) const

inlineoverride

Definition at line 32 of file DigitizationAlg.cpp.

                                                                                    {
      Hits hits;
      hits.reserve( mcHits.size() );
      std::normal_distribution dist( 0.0f, m_sigmaNoise.value() ); // µ, σ
      auto                     engine = m_rndSvc->getEngine( ctx.evt() );
      for ( auto const& mcHit : mcHits ) {
        auto nx = mcHit.x + dist( engine );
        auto ny = mcHit.y + dist( engine );
        // ignore negative axis.
        // Simplifies reconstruction and simulate the apperture of the detector
        if ( nx > 0 ) {
          hits.emplace_back( nx, ny );
          ++n_hits;
        }
      }
      return hits;
    };

Member Data Documentation

m_rndSvc

ServiceHandle<IRandomGenSvc> Gaudi::Example::TinyExperiment::DigitizationAlg::m_rndSvc

private

Initial value:

{ this, "RandomGenSvc", "RandomGenSvc",
                                           "A service providing a thread safe random number generator" }

Definition at line 51 of file DigitizationAlg.cpp.

                                                   { this, "RandomGenSvc", "RandomGenSvc",
                                           "A service providing a thread safe random number generator" };

m_sigmaNoise

Gaudi::Property<float> Gaudi::Example::TinyExperiment::DigitizationAlg::m_sigmaNoise

private

Initial value:

{ this, "SigmaNoise", 1.f,
                                         "Sigma of the noise (a normal distribution centered on 0)" }

Definition at line 53 of file DigitizationAlg.cpp.

                                                     { this, "SigmaNoise", 1.f,
                                         "Sigma of the noise (a normal distribution centered on 0)" };

n_hits

Gaudi::Accumulators::Counter Gaudi::Example::TinyExperiment::DigitizationAlg::n_hits { this, "Number of Hits" }

mutableprivate

Definition at line 55 of file DigitizationAlg.cpp.

{ this, "Number of Hits" };

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

• GaudiExamples/TinyExperiment/src/DigitizationAlg.cpp