Thetype exposes the following members.
Gets or sets the size, in posts, of a terrain region in the cache. Some RasterTerrainProviders set this to their natural tile size during construction in order to improve read performance. It cannot be set after the cache is used for the first time. Because adjacent cache blocks share rows or columns of posts, the actual number of posts requested from the terrain provider will be one post greater than this number in each direction. For example, if the tile size is 1200, a westernmost cache block will cover posts 0 through 1200 (inclusive, for a total of 1201 posts) in the longitude direction. The next cache block to the east will cover posts 1200 through 2400 (1201 posts again).
Gets the TerrainCacheGroup that contains this cache.(Inherited from TerrainCache.)
Gets the region in this cache that was least recently used.(Overrides TerrainCacheLeastRecentlyUsedRegion.)
Gets the total memory, in bytes, used by all regions in the cache.(Overrides TerrainCacheSize.)
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)
Gets the extents of the cache region that contains a specified longitude and latitude.
Serves as a hash function for a particular type.(Inherited from Object.)
Gets the collection of posts containing a specified longitude and latitude. If a region satisfying the request is in the cache, it will be returned. Otherwise, a minimal region will be loaded to satisfy the request, and a load of a larger region will be queued to the TerrainCacheGroup thread.
Gets the Type of the current instance.(Inherited from Object.)
Loads the specified region into the cache.(Overrides TerrainCacheLoadRegion(TerrainRegion).)
Creates a shallow copy of the current Object.(Inherited from Object.)
Loads the terrain data in a given extent into the terrain cache. This method does not return until the terrain data is fully loaded. All terrain data within the extent is loaded into memory even if doing so would exceed the TerrainCacheGroup'sMaximumSize. Furthermore, the loaded terrain data is locked in memory (meaning it will not be unloaded) until the user calls UnloadExtent(CartographicExtent). This method is safe to call from any thread.
Removes the specified region from the cache.(Overrides TerrainCacheRemoveRegion(TerrainRegion).)
Returns a string that represents the current object.(Inherited from Object.)
Unloads the cached terrain data for a given extent. This method unloads all cached regions where any part of the region falls within the extent. It does not return until the regions have been unloaded. However, if a region within the extent is being used in another thread while this method is executing, the region may be reloaded immediately after this method unloads it. This method is safe to call from any thread.