de.lmu.ifi.dbs.elki.math.spacefillingcurves

Class ZCurveTransformer

java.lang.Object

de.lmu.ifi.dbs.elki.math.spacefillingcurves.ZCurveTransformer

public class ZCurveTransformer
extends java.lang.Object

Class to transform a relation to its Z coordinates.

Since:

0.5.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private int	dimensionality Dimensionality.
private double[]	maxValues Maximum values in each dimension.
private double[]	minValues Minimum values in each dimension.

Constructor Summary

Constructors

Constructor and Description
ZCurveTransformer(Relation<? extends NumberVector> relation, DBIDs ids) Constructor.

Method Summary

Modifier and Type	Method and Description
byte[]	asByteArray(NumberVector vector) Transform a single vector.

Methods inherited from class java.lang.Object

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

Field Detail

maxValues

private final double[] maxValues

Maximum values in each dimension.

minValues

private final double[] minValues

Minimum values in each dimension.

dimensionality

private final int dimensionality

Dimensionality.

Constructor Detail

ZCurveTransformer

public ZCurveTransformer(Relation<? extends NumberVector> relation,
                         DBIDs ids)

Constructor.

Parameters:

relation - Relation to transform

ids - IDs subset to process

Method Detail

asByteArray

public byte[] asByteArray(NumberVector vector)

Transform a single vector.

Parameters:

vector - Vector to transform

Returns:

Z curve value as byte array