Class TileAddress

java.lang.Object

org.deltava.util.tile.TileAddress

All Implemented Interfaces:

Serializable, Comparable<TileAddress>

Direct Known Subclasses:

TileServlet.TileAddress5D

public class TileAddress
extends Object
implements Serializable, Comparable<TileAddress>

A class to store quadtree Tile addresses.

Since:

1.3

Version:

11.3

Author:

Luke

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
TileAddress(int x, int y, int level)	Creates a new Tile Address from cartesian coordinates.
TileAddress(String name)	Creates a new Tile Address from a tile filename.

Method Summary

Modifier and Type	Method	Description
int	compareTo(TileAddress addr2)	Compares two addresses by comparing their levels, Y and X coordinates.
boolean	equals(Object o)
static TileAddress	fromPixel(int px, int py, int zoom)	Creates a new Tile Address from pixel coordinates.
Collection<TileAddress>	getChildren()	Returns the addresses of all of this Tile's children.
Collection<TileAddress>	getChildren(int level)	Returns the addresses of all of this Tile's descendents at a particular zoom level.
int	getLevel()	Returns the Tile level.
String	getName()	Returns the base filename of this Tile.
TileAddress	getParent()	Returns this Tile's parent address.
Collection<TileAddress>	getParents()	Returns the addresses of all of this Tile's parents.
int	getPixelX()	Returns the X-coordinate of this tile within the global image.
int	getPixelY()	Returns the Y-coordinate of this tile within the global image.
int	getX()	Returns the X-coordinate of this Tile.
int	getY()	Returns the Y-coordinate of this Tile.
int	hashCode()
String	toString()	Returns the coordinates and level of the Tile.
TileAddress	zoomTo(int newLevel)	Returns the address of this Tile when zooming to another level.

Methods inherited from class Object

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

Constructor Details

TileAddress

public TileAddress(int x,
 int y,
 int level)

Creates a new Tile Address from cartesian coordinates.

Parameters:

x - the zero-offset X coordinate

y - the zero-offset Y coordinate

level - the level

TileAddress

public TileAddress(String name)

Creates a new Tile Address from a tile filename.

Parameters:

name - the tile filename

Throws:

NullPointerException - if name is null

Method Details

fromPixel

public static TileAddress fromPixel(int px,
 int py,
 int zoom)

Creates a new Tile Address from pixel coordinates.

Parameters:

px - the zero-offset X coordinate

py - the zero-offset Y coordinate

zoom - the zoom level

Returns:

the new TileAddress

getLevel

public int getLevel()

Returns the Tile level.

Returns:

the level

getX

public int getX()

Returns the X-coordinate of this Tile.

Returns:

the zero-offset X coordinate

getY

public int getY()

Returns the Y-coordinate of this Tile.

Returns:

the zero-offset Y coordinate

getPixelX

public int getPixelX()

Returns the X-coordinate of this tile within the global image.

Returns:

the zero-offset pixel X coordinate

getPixelY

public int getPixelY()

Returns the Y-coordinate of this tile within the global image.

Returns:

the zero-offset pixel Y coordinate

getName

public String getName()

Returns the base filename of this Tile.

Returns:

the base filename

toString

public String toString()

Returns the coordinates and level of the Tile.

Overrides:

toString in class Object

compareTo

public int compareTo(TileAddress addr2)

Compares two addresses by comparing their levels, Y and X coordinates.

Specified by:

compareTo in interface Comparable<TileAddress>

See Also:

• Comparable.compareTo(Object)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getParent

public TileAddress getParent()

Returns this Tile's parent address.

Returns:

the Tile's parent address

See Also:

• getParents()

getParents

public Collection<TileAddress> getParents()

Returns the addresses of all of this Tile's parents.

Returns:

a Collection of TileAddress beans

See Also:

• getParent()
• getChildren()

getChildren

public Collection<TileAddress> getChildren()

Returns the addresses of all of this Tile's children.

Returns:

a Collection of TileAddress beans

See Also:

• getParent()

getChildren

public Collection<TileAddress> getChildren(int level)

Returns the addresses of all of this Tile's descendents at a particular zoom level.

Parameters:

level - the new zoom level

Returns:

a Collection of TileAddress beans

zoomTo

public TileAddress zoomTo(int newLevel)

Returns the address of this Tile when zooming to another level. If zooming to a higher level, then the address of the top-left child will be returned.

Parameters:

newLevel - the new zoom level

Returns:

the Address of the tile