org.gvsig.raster.impl.provider

Interface TiledRasterProvider

All Known Implementing Classes:

TileFileFormatProvider, TileProvider, WMTSProvider

public interface TiledRasterProvider

Interface that should be implemented by tiled providers

Method Summary

Methods

Modifier and Type	Method and Description
Extent	getCoordsInLevel(Point2D viewCenter, int level, int w, int h) Calculates the extent of a zoom level using a center.
Extent	getCoordsInTheNearestLevel(Extent extent, int w, int h) Calculates the extent of a zoom level using other extent as a reference.
RasterProvider	getInternalProvider() Gets the internal provider used to feed the TileProvider
int	getNearestLevel(double pixelSize) Gets the nearest level to the selected pixel size
Tile	getTile(SpiRasterQuery q) Gets a tile
int[]	getTileSize(int level) Returns the tile size in pixels if this providers have tiles
int	getZoomLevels() Gets the number of zoom levels
void	setTileServer(Class<?> tileServer) Sets the tile cache data server.

Method Detail

getCoordsInTheNearestLevel

Extent getCoordsInTheNearestLevel(Extent extent,
                                int w,
                                int h)

Calculates the extent of a zoom level using other extent as a reference. The new extent is calculated with the same coordinate at the center.

Parameters:

level -

extent -

w -

h -

Returns:

getCoordsInLevel

Extent getCoordsInLevel(Point2D viewCenter,
                      int level,
                      int w,
                      int h)

Calculates the extent of a zoom level using a center.

Parameters:

viewCenter -

level -

w -

h -

Returns:

getZoomLevels

int getZoomLevels()

Gets the number of zoom levels

Returns:

getNearestLevel

int getNearestLevel(double pixelSize)

Gets the nearest level to the selected pixel size

Parameters:

pixelSize -

Returns:

getTile

Tile getTile(SpiRasterQuery q)
             throws TileGettingException

Gets a tile

Parameters:

level - Resolution level

tileCol - Tile column in the resolution level

tileRow - Tile row in the resolution level

bbox - Bounding box of the tile

Returns:

Throws:

TileGettingException

setTileServer

void setTileServer(Class<?> tileServer)
                   throws InitializeException

Sets the tile cache data server. This is the server assigned by the client. It will force to build a second level cache if the CacheStruct is not the same as the owner.

Parameters:

tileServer -

Throws:

InitializeException

getTileSize

int[] getTileSize(int level)

Returns the tile size in pixels if this providers have tiles

Returns:

getInternalProvider

RasterProvider getInternalProvider()

Gets the internal provider used to feed the TileProvider

Returns: