RandCache Class Reference

A cache of random values. More...

#include <RandCache.h>

Classes
struct	Ordering
	Interface to define the ordering of the random number cache. More...

Public Types
typedef WFMath::MTRand::uint32	uint32
	Unsigned 32bit integer.
typedef std::vector< uint32 >::size_type	size_type
	Size type of std::vector.

Public Member Functions
	RandCache (uint32 seed, Ordering *o)
	Constructor. More...
	RandCache (uint32 *seed, uint32 seed_len, Ordering *o)
	Constructor. More...
double	operator() (int x, int y)
	Retrieve a random value associated with parameters. More...

Private Attributes
WFMath::MTRand	m_rand
	Source random number generator.
std::vector< uint32 >	m_cache
	Store for the cache of values.
Ordering *	m_ordering
	Ordering object that defines the ordering of the cache.

Detailed Description

A cache of random values.

Constructor & Destructor Documentation

RandCache() [1/2]

RandCache::RandCache ( uint32  seed, Ordering *  o  )

inline

Constructor.

Parameters

seed	the random seed value for generated numbers.
o	the ordering object that defines the sequence generated.

RandCache() [2/2]

RandCache::RandCache ( uint32 *  seed, uint32  seed_len, Ordering *  o  )

inline

Constructor.

Parameters

seed	the random seed block for generated numbers.
seed_len	the length of the seed block.
o	the ordering object that defines the sequence generated.

Member Function Documentation

operator()()

double RandCache::operator() ( int  x, int  y  )

inline

Retrieve a random value associated with parameters.

Parameters

x	coordinate associated with value to be retrieved.
y	coordinate associated with value to be retrieved.

References m_cache, and m_rand.

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

• RandCache.h