Classes
class	Adapter

class	SeedVector

Functions
void	setGenerator (G4INCL::IRandomGenerator *aGenerator)

void	setSeeds (const SeedVector &sv)

SeedVector	getSeeds ()

G4double	shoot ()

G4double	shoot0 ()

G4double	shoot1 ()

template<typename T >
T	shootInteger (T n)

G4double	gauss (G4double sigma=1.)

ThreeVector	normVector (G4double norm=1.)

ThreeVector	sphereVector (G4double rmax=1.)

ThreeVector	gaussVector (G4double sigma=1.)
	Generate Gaussianly-distributed ThreeVectors. More...

std::pair< G4double, G4double >	correlatedGaussian (const G4double corrCoeff, const G4double x0=0., const G4double sigma=1.)
	Generate pairs of correlated Gaussian random numbers. More...

std::pair< G4double, G4double >	correlatedUniform (const G4double corrCoeff)
	Generate pairs of correlated uniform random numbers. More...

void	deleteGenerator ()

G4bool	isInitialized ()

void	saveSeeds ()
	Save the status of the random-number generator. More...

SeedVector	getSavedSeeds ()
	Get the saved status of the random-number generator. More...

void	initialize (Config const *const)
	Initialize generator according to a Config object. More...

Adapter const &	getAdapter ()

std::ostream &	operator<< (std::ostream &out, SeedVector const &sv)

Function Documentation

std::pair< G4double, G4double > G4INCL::Random::correlatedGaussian	(	const G4double	corrCoeff,
		const G4double	x0 = `0.`,
		const G4double	sigma = `1.`
	)

Generate pairs of correlated Gaussian random numbers.

Definition at line 155 of file G4INCLRandom.cc.

                                                                                                                      {
 // assert(corrCoeff<=1. && corrCoeff>=-1.);
       G4double factor = 1.-corrCoeff*corrCoeff;
       if(factor<=0.)
         factor=0.;
       const G4double x = gauss(sigma) + x0;
       const G4double y = corrCoeff * x + gauss(sigma*std::sqrt(factor)) + x0;
       return std::make_pair(x, y);
     }

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std::pair< G4double, G4double > G4INCL::Random::correlatedUniform ( const G4double corrCoeff )

Generate pairs of correlated uniform random numbers.

Definition at line 165 of file G4INCLRandom.cc.

                                                                            {
       std::pair<G4double,G4double> gaussians = correlatedGaussian(corrCoeff);
       return std::make_pair(Math::gaussianCDF(gaussians.first), Math::gaussianCDF(gaussians.second));
     }

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void G4INCL::Random::deleteGenerator ( )

Delete the generator

Definition at line 170 of file G4INCLRandom.cc.

                            {
       delete theGenerator;
       theGenerator = NULL;
       delete savedSeeds;
       savedSeeds = NULL;
       delete theAdapter;
       theAdapter = NULL;
     }

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G4double G4INCL::Random::gauss ( G4double sigma = 1. )

Generate random numbers using gaussian distribution.

Definition at line 114 of file G4INCLRandom.cc.

                                    {
       // generate a Gaussian random number with standard deviation sigma
       // uses the flat() and flat0() methods
       static G4ThreadLocal G4bool generated = false;
       static G4ThreadLocal G4double u, v;
 
       if( !generated )
       {
         u = shoot0();
         v = Math::twoPi*shoot();
         generated = true;
         return sigma*std::sqrt(-2*std::log(u))*std::cos(v);
       }
       else
       {
         generated = false;
         return sigma*std::sqrt(-2*std::log(u))*std::sin(v);
       }
     }

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ThreeVector G4INCL::Random::gaussVector ( G4double sigma = 1. )

Generate Gaussianly-distributed ThreeVectors.

Generate ThreeVectors that are distributed as a three-dimensional Gaussian of the given sigma.

Definition at line 150 of file G4INCLRandom.cc.

                                             {
       const G4double sigmax = sigma * Math::oneOverSqrtThree;
       return ThreeVector(gauss(sigmax), gauss(sigmax), gauss(sigmax));
     }

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Adapter const & G4INCL::Random::getAdapter ( )

Definition at line 227 of file G4INCLRandom.cc.

                                 {
       return *theAdapter;
     }

SeedVector G4INCL::Random::getSavedSeeds ( )

Get the saved status of the random-number generator.

Definition at line 198 of file G4INCLRandom.cc.

                                {
       if(!savedSeeds)
         savedSeeds = new SeedVector;
 
       return *savedSeeds;
     }

SeedVector G4INCL::Random::getSeeds ( )

Get the seeds of the current generator.

Definition at line 89 of file G4INCLRandom.cc.

                           {
       return theGenerator->getSeeds();
     }

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void G4INCL::Random::initialize ( Config const * const )

Initialize generator according to a Config object.

Definition at line 205 of file G4INCLRandom.cc.

                       {
 #ifdef INCLXX_IN_GEANT4_MODE
       Random::setGenerator(new Geant4RandomGenerator());
 #else // INCLXX_IN_GEANT4_MODE
       RNGType rng = theConfig->getRNGType();
       if(rng == RanecuType)
         setGenerator(new Ranecu(theConfig->getRandomSeeds()));
       else if(rng == Ranecu3Type)
         setGenerator(new Ranecu3(theConfig->getRandomSeeds()));
       else
         setGenerator(NULL);
 #endif // INCLXX_IN_GEANT4_MODE
     }

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G4bool G4INCL::Random::isInitialized ( )

Check if the generator is initialized.

Definition at line 179 of file G4INCLRandom.cc.

                            {
       if(theGenerator == 0) return false;
       return true;
     }

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ThreeVector G4INCL::Random::normVector ( G4double norm = 1. )

Generate isotropically-distributed ThreeVectors of given norm.

Definition at line 134 of file G4INCLRandom.cc.

                                           {
 
       const G4double ctheta = (1.-2.*shoot());
       const G4double stheta = std::sqrt(1.-ctheta*ctheta);
       const G4double phi = Math::twoPi*shoot();
       return ThreeVector(
                          norm * stheta * std::cos(phi),
                          norm * stheta * std::sin(phi),
                          norm * ctheta);
 
     }

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std::ostream& G4INCL::Random::operator<<	(	std::ostream &	out,
		SeedVector const &	sv
	)

Definition at line 50 of file G4INCLRandomSeedVector.cc.

                                                                   {
       if(sv.size()<=0)
         return out;
       for(size_t i=0; i<sv.size()-1; ++i)
         out << sv.at(i) << '\t';
       out << sv.at(sv.size()-1);
       return out;
     }

void G4INCL::Random::saveSeeds ( )

Save the status of the random-number generator.

Definition at line 191 of file G4INCLRandom.cc.

                      {
       if(!savedSeeds)
         savedSeeds = new SeedVector;
 
       (*savedSeeds) = theGenerator->getSeeds();
     }

void G4INCL::Random::setGenerator ( G4INCL::IRandomGenerator * aGenerator )

Set the random number generator implementation to be used globally by INCL.

See Also: G4INCL::IRandomGenerator

Definition at line 72 of file G4INCLRandom.cc.

                                                           {
       if(isInitialized()) {
         INCL_ERROR("INCL random number generator already initialized." << '\n');
       } else {
 #ifdef INCL_COUNT_RND_CALLS
         nCalls = 0;
 #endif
         theGenerator = aGenerator;
       }
       if(!theAdapter)
         theAdapter = new Adapter();
     }

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void G4INCL::Random::setSeeds ( const SeedVector & sv )

Set the seeds of the current generator.

Definition at line 85 of file G4INCLRandom.cc.

                                         {
       theGenerator->setSeeds(sv);
     }

G4double G4INCL::Random::shoot ( )

Generate flat distribution of random numbers.

Definition at line 93 of file G4INCLRandom.cc.

                      {
 #ifdef INCL_COUNT_RND_CALLS
       nCalls++;
 #endif
       return theGenerator->flat();
     }

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G4double G4INCL::Random::shoot0 ( )

Return a random number in the ]0,1] interval

Definition at line 100 of file G4INCLRandom.cc.

                       {
       G4double r;
       while( (r=shoot()) <= 0. ) /* Loop checking, 10.07.2015, D.Mancusi */
         ;
       return r;
     }

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G4double G4INCL::Random::shoot1 ( )

Return a random number in the [0,1[ interval

Definition at line 107 of file G4INCLRandom.cc.

                       {
       G4double r;
       while( (r=shoot()) >= 1. ) /* Loop checking, 10.07.2015, D.Mancusi */
         ;
       return r;
     }

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template<typename T >

T G4INCL::Random::shootInteger ( T n )

Return a random integer in the [0,n[ interval

Definition at line 96 of file G4INCLRandom.hh.

                                             {
       return static_cast<T>(shoot1() * n);
     }

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ThreeVector G4INCL::Random::sphereVector ( G4double rmax = 1. )

Generate ThreeVectors that are uniformly distributed in a sphere of radius rmax.

Definition at line 146 of file G4INCLRandom.cc.

                                             {
       return normVector( rmax*Math::pow13(shoot0()) );
     }

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Classes

Functions

Function Documentation