Module org.elasticsearch.server

Package org.elasticsearch.lucene.spatial

Class CoordinateEncoder

java.lang.Object

org.elasticsearch.lucene.spatial.CoordinateEncoder

public abstract class CoordinateEncoder
extends Object

Abstract API for classes that help encode double-valued spatial coordinates x/y to their integer-encoded serialized form and decode them back

Field Summary

Fields

Modifier and Type	Field	Description
static final CoordinateEncoder	CARTESIAN	Encodes arbitrary x/y values in the float space into / from sortable integers
static final CoordinateEncoder	GEO	Encodes lat/lon values into / from lucene encoded format

Constructor Summary

Constructors

Constructor	Description
CoordinateEncoder()

Method Summary

Modifier and Type	Method	Description
abstract double	decodeX(int x)	decode X value
abstract double	decodeY(int y)	decode Y value
abstract int	encodeX(double x)	encode X value
abstract int	encodeY(double y)	encode Y value
abstract double	normalizeX(double x)	normalize X value
abstract double	normalizeY(double y)	normalize Y value

Methods inherited from class java.lang.Object

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

Field Details

GEO

public static final CoordinateEncoder GEO

Encodes lat/lon values into / from lucene encoded format

CARTESIAN

public static final CoordinateEncoder CARTESIAN

Encodes arbitrary x/y values in the float space into / from sortable integers

Constructor Details

CoordinateEncoder

public CoordinateEncoder()

Method Details

encodeX

public abstract int encodeX(double x)

encode X value

encodeY

public abstract int encodeY(double y)

encode Y value

decodeX

public abstract double decodeX(int x)

decode X value

decodeY

public abstract double decodeY(int y)

decode Y value

normalizeX

public abstract double normalizeX(double x)

normalize X value

normalizeY

public abstract double normalizeY(double y)

normalize Y value