RMCompositeSource Class Reference
| Inherits from | RMAbstractMercatorTileSource : NSObject |
| Declared in | RMCompositeSource.h |
Overview
RMCompositeSource combines two or more other tile sources, compositing them into a single image per tile and caching that composited result to the tile cache.
RMCompositeSource can have better performance for instances of fully opaque tiles that are layered above other tiles in the tile source stacking order. It will determine if a tile is opaque and stop iteration of tile sources below it early as a result, since they would be obscured anyway.
Instance Methods
initWithTileSources:tileCacheKey:
Initialize a compositing tile source.
- (id)initWithTileSources:(NSArray *)tileSources tileCacheKey:(NSString *)tileCacheKeyParameters
- tileSources
An array of tile sources to be composited.
- tileCacheKey
A tile cache key for storage of composited result tiles.
Return Value
An initialized compositing tile source.
Discussion
Initialize a compositing tile source.
Declared In
RMCompositeSource.h