org.epseelon.mobimap.tiles
Class AbstractTileFactory

java.lang.Object
  org.epseelon.mobimap.tiles.TileFactory
      org.epseelon.mobimap.tiles.AbstractTileFactory

Direct Known Subclasses:

AbstractOpenStreetMapTileFactory, AbstractVirtualEarthTileFactory, AbstractYahooTileFactory, GoogleMapTileFactory, GoogleSatelliteTileFactory

public abstract class AbstractTileFactory
extends TileFactory

Version:

14 juin 2008, 14:50:33

Author:

sarbogast

Constructor Summary

protected

AbstractTileFactory(TileFactoryInfo info, javax.microedition.lcdui.Canvas canvasToRepaintWhenLoaded, int cacheSize) Creates a new instance of TileFactory

Method Summary

Tile	getTile(int x, int y, int zoom) Return the Tile at a given TilePoint and zoom level
java.lang.String	getTileUrl(int x, int y, int zoom) Returns the tile url for the specified tile at the specified zoom level.
protected void	startLoading(Tile tile) Starts loading the tile in a different thread. canvasToRepaint will be repainted when the tile is loaded

Methods inherited from class org.epseelon.mobimap.tiles.TileFactory

geoToPixel, getCoordinatePart, getInfo, getMapSize, getParticularZoomFromReferenceZoom, getReferenceZoomFromParticularZoom, getTileSize, pixelToGeo

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTileFactory

protected AbstractTileFactory(TileFactoryInfo info,
                              javax.microedition.lcdui.Canvas canvasToRepaintWhenLoaded,
                              int cacheSize)

Creates a new instance of TileFactory

Parameters:

info - a TileFactoryInfo to configure this TileFactory

Method Detail

getTile

public Tile getTile(int x,
                    int y,
                    int zoom)

Description copied from class: TileFactory

Return the Tile at a given TilePoint and zoom level

Specified by:

getTile in class TileFactory

Parameters:

x - Abscissa of the tile to retrieve (between 0 and 2^zoom/tilesize - 1)

y - Ordinate of the tile to retrieve (between 0 and 2^zoom/tilesize - 1)

zoom - Zoom of the tile to load

Returns:

The tile corresponding to those coordinates

getTileUrl

public java.lang.String getTileUrl(int x,
                                   int y,
                                   int zoom)

Returns the tile url for the specified tile at the specified zoom level. By default it will generate a tile url using the base url and parameters specified in the constructor.

Parameters:

zoom - the zoom level

x - abscissa of the tile point

y - ordinate of the tile point

Returns:

a valid url to load the tile

startLoading

protected void startLoading(Tile tile)

Starts loading the tile in a different thread. canvasToRepaint will be repainted when the tile is loaded

Specified by:

startLoading in class TileFactory

Parameters:

tile - The tile to load