The IlvTiledLayer Class

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The IlvTiledLayer extends the IlvManagerLayer class and allows the loading of large sets of data, for example, large maps. It is divided into a number of rectangular areas called tiles (organized into grid cells or into a list of specified areas) and provides a notification mechanism to load only the graphic objects that are required by the application, because a tile is visible in one of the views of the manager or because it has been explicitly required by the application.

An IlvTiledLayer is associated with three important objects:

• An IlvTileController, which manages the tile events.
• An IlvTileLoader, which loads the tiles from a data source.
• An IlvTileCache, which manages the cache and deletes the unused tiles.