Distribution

A set of distribution for random numbers. More...

Data Structures
class	lass::num::DistributionUniform< T, RandomGenerator, rangeType >
	a uniform distribution mapper. More...
class	lass::num::DistributionExponential< T, RandomGenerator >
	an exponential distribution mapper. More...
class	lass::num::DistributionNormal< T, RandomGenerator >
	a normal distribution mapper (aka guassian distribution) More...
Enumerations
enum	lass::num::RangeType { lass::num::rtClosed = 0x0, lass::num::rtRightOpen = 0x1, lass::num::rtLeftOpen = 0x2, lass::num::rtOpen = 0x3 }
	enumeration indicating how a real-number range must be closed. More...
Functions
template<class T , class RG >
T	lass::num::uniform (RG &generator)
template<class T , class RG >
T	lass::num::unitGauss (RG &generator)
template<class T , class RG >
T	lass::num::gauss (RG &generator, typename util::CallTraits< T >::TParam mean, typename util::CallTraits< T >::TParam stddev)

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Detailed Description

A set of distribution for random numbers.

distribution classes:

• DistributionUniform
• DistributionExponential
• DistributionNormal

backwards compatible functions:

• uniform
• unitGauss
• gauss

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Enumeration Type Documentation

enum lass::num::RangeType

enumeration indicating how a real-number range must be closed.

Enumerator:

rtClosed	range is closed on both sides: [inf, sup]
rtRightOpen	range is open to the right: [inf, sup)
rtLeftOpen	range is open to the left: (inf, sup]
rtOpen	range is open to both sides: (inf, sup)

Definition at line 76 of file distribution.h.

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Function Documentation

template<class T , class RG >

T lass::num::uniform

(

RG &

generator

)

[inline]

Returns:

a uniform random sample from [0,1]

Definition at line 286 of file distribution.inl.

References lass::num::distributeUniform().

Referenced by lass::prim::Aabb3D< T, MinMaxPolicy >::random(), and lass::prim::Aabb2D< T, MinMaxPolicy >::random().

template<class T , class RG >

T lass::num::unitGauss

(

RG &

generator

)

[inline]

Returns:

a gaussian distributed (aka normal distributed) random with mean 0 and stddev 1

Definition at line 296 of file distribution.inl.

template<class T , class RG >

T lass::num::gauss	(	RG &	generator,
		typename util::CallTraits< T >::TParam	mean,
		typename util::CallTraits< T >::TParam	stddev
	)			[inline]

Returns:

a gaussian distributed (aka normal distributed) random sample with mean and stddev stddev

Definition at line 307 of file distribution.inl.