com.luciad.format.raster

LuciadLightspeedInterface ILcdSubtiledTile

All Superinterfaces:

ILcdTile

All Known Implementing Classes:

TLcdBufferedTile, TLcdByteArrayTile, TLcdCADRGTile, TLcdDTEDTile, TLcdECRGTile, TLcdIntArrayTile, TLcdRenderedImageTile, TLcdShortArrayTile, TLcdUSRPTile

public interface ILcdSubtiledTile
extends ILcdTile

This interface defines an ILcdTile which is further subdivided into subtiles. The interface is intentionally minimalistic: the only information required about the subtiles is their pixel resolution.

Implementations are expected to perform various optimizations based on subtiles (the most likely being caching of the data). Therefore, clients are encouraged to access the tile's data in a coherent fashion. This applies to both the retrieveValue() and createImage() methods.

As an example, an application might read values out of an ILcdTile without taking subtiling into account, by reading the values scanline by scanline. Such an application could possibly perform better if it took subtile boundaries into account, and following a scanline access pattern only within each subtile.

Field Summary

Fields inherited from interface com.luciad.format.raster.ILcdTile

BYTE, INT, SHORT

Method Summary

Modifier and Type	Method and Description
int	getSubTileHeight() Returns the height of a subtile in pixels.
int	getSubTileWidth() Returns the width of a subtile in pixels.

Methods inherited from interface com.luciad.format.raster.ILcdTile

createImage, createImage, createImage, createImage, getColorModel, getHeight, getPixelSize, getType, getWidth, isAllDefault, retrieveValue

Method Detail

getSubTileWidth

int getSubTileWidth()

Returns the width of a subtile in pixels. May be equal to the width of the parent tile (as returned by the getWidth() method), in which case the tile is not subdivided.

getSubTileHeight

int getSubTileHeight()

Returns the height of a subtile in pixels. May be equal to the height of the parent tile (as returned by the getHeight() method), in which case the tile is not subdivided.