com.luciad.fusion.tilestore.metadata

LuciadFusionClass TLfnResolution

java.lang.Object

com.luciad.fusion.tilestore.metadata.TLfnResolution

All Implemented Interfaces:

Comparable<TLfnResolution>

public final class TLfnResolution
extends Object
implements Comparable<TLfnResolution>

This class represents the geospatial resolution of a raster in model coordinates, with an X- and Y- component. It replaces the legacy concept of a pixel density, which lacks the notion of X- and Y- components. For example, a data set with a spatial resolution of 3 arcseconds in both longitudinal and latitudinal directions corresponds to a resolution of 1 / 1200 = 0.000833333 x 0.000833333.

A resolution is comparable according to the natural order:

• Low resolutions are less than high resolutions.
• Low resolutions have lower density than high resolutions.
• When two resolutions have an equal density, the one with the greatest X component is less than the other.

Since:

2016.0

Constructor Summary

Constructors

Constructor and Description
TLfnResolution(double aX, double aY) Constructs a new resolution from given X and Y components.

Method Summary

Modifier and Type	Method and Description
int	compareTo(TLfnResolution aOther) Compares this resolution to another.
boolean	equals(Object aObject)
double	getX() The X component of the spatial resolution.
double	getY() The Y component of the spatial resolution.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TLfnResolution

public TLfnResolution(double aX,
                      double aY)

Constructs a new resolution from given X and Y components. The X and Y components are the distance between pixels in model coordinates. This means that higher resolutions have lower X and Y components.

The allowed values for X and Y components are [0, +Infinity]. This constructor throws when one of the components is NaN or < 0.

Parameters:

aX - the X component, must be in the range [0, +Infinity]

aY - the Y component, must be in the range [0, +Infinity]

Method Detail

getX

public double getX()

The X component of the spatial resolution.

Returns:

the X component of the spatial resolution

getY

public double getY()

The Y component of the spatial resolution.

Returns:

the Y component of the spatial resolution

compareTo

public int compareTo(TLfnResolution aOther)

Compares this resolution to another. A resolution is less than another if it has a lower density than another, meaning that it has higher values for X and Y components. For example, resolution 0.5 x 0.5 is less than resolution 0.01 x 0.01.

If two different resolutions have the same density, then the one with the greatest X component will be less than the other. For example, resolution 0.5 x 0.01 is less than 0.01 x 0.5.

Specified by:

compareTo in interface Comparable<TLfnResolution>

Parameters:

aOther - the resolution to compare this one to

Returns:

-1 if this resolution is less than the other, 0 if is equal, or 1 if it is greater than the other

equals

public boolean equals(Object aObject)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object