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UniformRandomFunctor< Engine > Class Template Reference
[Random Number Generation]

#include <vigra/random.hxx>

List of all members.

Public Types

typedef double result_type
 STL required functor result type.

Public Member Functions

double operator() () const
 UniformRandomFunctor (double lower, double upper, Engine &generator=Engine::global())
 UniformRandomFunctor (Engine &generator=Engine::global())

Detailed Description

template<class Engine = RandomTT800>
class vigra::UniformRandomFunctor< Engine >

Functor to create uniformely distributed double-precision random numbers.

This functor encapsulates the function uniform() of the given random number Engine (usually RandomTT800 or RandomMT19937) in an STL-compatible interface.

Traits defined:

FunctorTraits<UniformIntRandomFunctor<Engine> >isInitializer is true (VigraTrueType).


Constructor & Destructor Documentation

UniformRandomFunctor ( Engine &  generator = Engine::global()  ) 

Create functor for uniform random double-precision numbers in the range [0.0, 1.0] using the given engine.

That is, the generated numbers satisfy 0.0 <= i <= 1.0.

UniformRandomFunctor ( double  lower,
double  upper,
Engine &  generator = Engine::global() 
)

Create functor for uniform random double-precision numbers in the range [lower, upper] using the given engine.

That is, the generated numbers satisfy lower <= i <= upper.


Member Function Documentation

double operator() (  )  const

Return a random number as specified in the constructor.


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

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

html generated using doxygen and Python
VIGRA 1.6.0 (5 Nov 2009)