org.apache.commons.math.random
Class UnitSphereRandomVectorGenerator

java.lang.Object
  org.apache.commons.math.random.UnitSphereRandomVectorGenerator

All Implemented Interfaces:

RandomVectorGenerator

public class UnitSphereRandomVectorGenerator
extends Object
implements RandomVectorGenerator

Generate random vectors isotropically located on the surface of a sphere.

Since:

2.1

Version:

$Revision: 990655 $ $Date: 2010-08-29 23:49:40 +0200 (dim. 29 août 2010) $

Constructor Summary

UnitSphereRandomVectorGenerator(int dimension)
Create an object that will use a default RNG (MersenneTwister), in order to generate the individual components.

UnitSphereRandomVectorGenerator(int dimension, RandomGenerator rand)

Method Summary

double[]

nextVector() Generate a random vector.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnitSphereRandomVectorGenerator

public UnitSphereRandomVectorGenerator(int dimension,
                                       RandomGenerator rand)

Parameters:

dimension - Space dimension.

rand - RNG for the individual components of the vectors.

UnitSphereRandomVectorGenerator

public UnitSphereRandomVectorGenerator(int dimension)

Create an object that will use a default RNG (MersenneTwister), in order to generate the individual components.

Parameters:

dimension - Space dimension.

Method Detail

nextVector

public double[] nextVector()

Generate a random vector.

Specified by:

nextVector in interface RandomVectorGenerator

Returns:

a random vector as an array of double.