Represents the tiling scheme used by a cached map service. For example, ArcGIS Server cached map service, Bing Maps, etc. The tiling scheme contains information about how a map is broken up into tiles of images and how a client can use these tiles to display a map.
The compression quality of the tile images. The compression quality controls how much loss the image will be subjected to by the compression algorithm. The values of the pixels of an image compressed with a higher compression quality will be closer to those of the original image. The valid range of compression quality values is from 0 to 100. If an error occurs or if the compression quality is not defined, NaN is returned.