Package org.apache.commons.rng.sampling.shape

Class TriangleSampler.TriangleSamplerND

java.lang.Object

org.apache.commons.rng.sampling.shape.TriangleSampler

org.apache.commons.rng.sampling.shape.TriangleSampler.TriangleSamplerND

All Implemented Interfaces:

ObjectSampler<double[]>, SharedStateObjectSampler<double[]>, SharedStateSampler<SharedStateObjectSampler<double[]>>

Enclosing class:

TriangleSampler

private static final class TriangleSampler.TriangleSamplerND
extends TriangleSampler

Sample uniformly from a triangle in ND.

Field Summary

Fields

Modifier and Type	Field	Description
private double[]	a	The first vertex.
private double[]	b	The second vertex.
private double[]	c	The third vertex.

Constructor Summary

Constructors

Constructor	Description
TriangleSamplerND(UniformRandomProvider rng, double[] a, double[] b, double[] c)
TriangleSamplerND(UniformRandomProvider rng, TriangleSampler.TriangleSamplerND source)

Method Summary

Modifier and Type	Method	Description
double[]	createSample(double p1msmt, double s, double t)	Creates the sample given the random variates s and t in the interval [0, 1] and s + t <= 1.
TriangleSampler	withUniformRandomProvider(UniformRandomProvider rng)	Create a new instance of the sampler with the same underlying state using the given uniform random provider as the source of randomness.

Methods inherited from class org.apache.commons.rng.sampling.shape.TriangleSampler

of, sample

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.rng.sampling.ObjectSampler

samples, samples

Field Detail

a

private final double[] a

The first vertex.

b

private final double[] b

The second vertex.

c

private final double[] c

The third vertex.

Constructor Detail

TriangleSamplerND

TriangleSamplerND(UniformRandomProvider rng,
                  double[] a,
                  double[] b,
                  double[] c)

Parameters:

rng - Source of randomness.

a - The first vertex.

b - The second vertex.

c - The third vertex.

TriangleSamplerND

TriangleSamplerND(UniformRandomProvider rng,
                  TriangleSampler.TriangleSamplerND source)

Parameters:

rng - Generator of uniformly distributed random numbers

source - Source to copy.

Method Detail

createSample

public double[] createSample(double p1msmt,
                             double s,
                             double t)

Description copied from class: TriangleSampler

Creates the sample given the random variates s and t in the interval [0, 1] and s + t <= 1. The sum 1 - s - t is provided. The sample can be obtained from the triangle abc using:

 p = a(1 - s - t) + sb + tc
 

Specified by:

createSample in class TriangleSampler

Parameters:

p1msmt - plus 1 minus s minus t (1 - s - t)

s - the first variate s

t - the second variate t

Returns:

the sample

withUniformRandomProvider

public TriangleSampler withUniformRandomProvider(UniformRandomProvider rng)

Description copied from class: TriangleSampler

Create a new instance of the sampler with the same underlying state using the given uniform random provider as the source of randomness.

Specified by:

withUniformRandomProvider in interface SharedStateSampler<SharedStateObjectSampler<double[]>>

Specified by:

withUniformRandomProvider in class TriangleSampler

Parameters:

rng - Generator of uniformly distributed random numbers.

Returns:

the sampler