Package org.uma.jmetal.util

Class ReferencePointUtils

java.lang.Object

org.uma.jmetal.util.ReferencePointUtils

public class ReferencePointUtils
extends Object

Utility class for reference point operations in multi-objective optimization. Provides methods to convert between reference points and reference fronts.

Constructor Summary

Constructors

Constructor	Description
ReferencePointUtils()

Method Summary

Modifier and Type	Method	Description
static double[][]	createReferenceFrontFromReferencePoint(double[] referencePoint)	Creates a reference front from a reference point.
static double[]	extractReferencePointFromReferenceFront(double[][] referenceFront)	Extracts a reference point from a reference front.

Methods inherited from class java.lang.Object

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

Constructor Details

ReferencePointUtils

public ReferencePointUtils()

Method Details

createReferenceFrontFromReferencePoint

public static double[][] createReferenceFrontFromReferencePoint(double[] referencePoint)

Creates a reference front from a reference point. The reference front will have n points where n is the dimension of the reference point, with each point having all objectives at 0 except for one objective which is set to the reference point's corresponding value.

Parameters:

referencePoint - The reference point

Returns:

A reference front generated from the reference point

Throws:

IllegalArgumentException - if referencePoint is null or empty

extractReferencePointFromReferenceFront

public static double[] extractReferencePointFromReferenceFront(double[][] referenceFront)

Extracts a reference point from a reference front. The reference point is created by taking the maximum value in each objective dimension across all points in the front.

Parameters:

referenceFront - The reference front

Returns:

A reference point derived from the reference front

Throws:

IllegalArgumentException - if referenceFront is null, empty, or contains null points