evgen::ldm::IMeVPrtlStage Class Reference

IMeVPrtlStage interface class definiton. General interface behind each stage. Provides random number generation. More...

#include <IMeVPrtlStage.h>

Inheritance diagram for evgen::ldm::IMeVPrtlStage:

Public Member Functions
virtual	~IMeVPrtlStage () noexcept
	Virtual Destructor. More...
	IMeVPrtlStage (const char *name)
virtual void	configure (const fhicl::ParameterSet &)=0
	Interface for configuring the particular algorithm tool. More...
virtual double	MaxWeight ()=0
TVector3	RandomUnitVector ()
double	GetRandom ()
const char *	Name ()

Protected Attributes
CLHEP::HepRandomEngine *	fEngine
const char *	fName

Detailed Description

IMeVPrtlStage interface class definiton. General interface behind each stage. Provides random number generation.

Definition at line 36 of file IMeVPrtlStage.h.

Constructor & Destructor Documentation

virtual evgen::ldm::IMeVPrtlStage::~IMeVPrtlStage ( )

inlinevirtualnoexcept

Virtual Destructor.

Definition at line 42 of file IMeVPrtlStage.h.

                                      {
      if (fEngine) delete fEngine;
    }

evgen::ldm::IMeVPrtlStage::IMeVPrtlStage ( const char *  name )

inline

Definition at line 46 of file IMeVPrtlStage.h.

                                     {
      // setup the random number engine
      art::ServiceHandle<rndm::NuRandomService> seedSvc;
      fEngine = new CLHEP::HepJamesRandom;
      seedSvc->registerEngine(rndm::NuRandomService::CLHEPengineSeeder(fEngine), name);
      fName = name;
    }

Member Function Documentation

virtual void evgen::ldm::IMeVPrtlStage::configure ( const fhicl::ParameterSet &  )

pure virtual

Interface for configuring the particular algorithm tool.

Parameters

ParameterSet

The input set of parameters for configuration

Implemented in evgen::ldm::HNLMakeDecay, evgen::ldm::NuMiKaonGen, evgen::ldm::Kaon2HiggsFlux, evgen::ldm::MixedWeightRayTraceBox, evgen::ldm::HiggsMakeDecay, evgen::ldm::EmptyKaonGen, evgen::ldm::Kaon2HNLFlux, evgen::ldm::WeightedRayTraceBox, evgen::ldm::MonoEnergyHiggsFlux, evgen::ldm::ReThrowRayTraceBox, and evgen::ldm::RayTraceBox.

double evgen::ldm::IMeVPrtlStage::GetRandom ( )

inline

Definition at line 72 of file IMeVPrtlStage.h.

                       {
      return CLHEP::RandFlat::shoot(fEngine);
    }

virtual double evgen::ldm::IMeVPrtlStage::MaxWeight ( )

pure virtual

Implemented in evgen::ldm::HNLMakeDecay, evgen::ldm::NuMiKaonGen, evgen::ldm::HiggsMakeDecay, evgen::ldm::MixedWeightRayTraceBox, evgen::ldm::EmptyKaonGen, evgen::ldm::Kaon2HiggsFlux, evgen::ldm::WeightedRayTraceBox, evgen::ldm::Kaon2HNLFlux, evgen::ldm::ReThrowRayTraceBox, evgen::ldm::MonoEnergyHiggsFlux, and evgen::ldm::RayTraceBox.

const char* evgen::ldm::IMeVPrtlStage::Name ( )

inline

Definition at line 76 of file IMeVPrtlStage.h.

{ return fName; }

TVector3 evgen::ldm::IMeVPrtlStage::RandomUnitVector ( )

inline

Definition at line 64 of file IMeVPrtlStage.h.

                                {
      // In order to pick a random point on a sphere -- pick a random value of _costh_, __not__ theta
      // b.c. d\Omega = d\phi dcos\theta, i.e. d\Omega != d\phi d\theta
      double costheta = CLHEP::RandFlat::shoot(fEngine, -1, 1);
      double sintheta = sqrt(1. - costheta * costheta);
      double phi = CLHEP::RandFlat::shoot(fEngine, 0, 2*M_PI);
      return TVector3(sintheta * cos(phi), sintheta * sin(phi), costheta);
    }

Member Data Documentation

CLHEP::HepRandomEngine* evgen::ldm::IMeVPrtlStage::fEngine

protected

Definition at line 79 of file IMeVPrtlStage.h.

const char* evgen::ldm::IMeVPrtlStage::fName

protected

Definition at line 80 of file IMeVPrtlStage.h.

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

• IMeVPrtlStage.h