![]() ![]() One advantage of the ArcGIS Online/ Bing Maps/ Google Maps tiling scheme is that it's widely known in the web mapping world, so your tiles will match those of other organizations that have used this tiling scheme. Overlays with Google Maps are possible through the ArcGIS Maps SDK for JavaScript Extension to the Google Maps API. Overlays with Bing Maps are possible in Map Viewer Classic and many of the ArcGIS web viewers and APIs. Overlays with ArcGIS Online are possible in virtually all recent Esri client applications. The ArcGIS Online/ Bing Maps/ Google Maps tiling scheme is required if you'll be overlaying your cache with maps from ArcGIS Online, Bing Maps, or Google Maps. If you want to increase performance when creating tiles, project your data and your data frame to this coordinate system prior to publishing the service. ArcGIS projects your source map on the fly to the required coordinate system of this tiling scheme, which is WGS 1984 Web Mercator (Auxiliary Sphere). ArcGIS Online/ Bing Maps/ Google MapsĬhoosing ArcGIS Online/Bing Maps/Google Maps allows you to overlay your cache tiles with tiles from these online mapping services. You can further modify the tiling scheme to fit your cached service using the options in the Tiling Scheme settings group. You can choose a preset for your cache's tiling scheme, or provide a custom file. ![]() It is important to match the tiling scheme when your cached service will overlay other caches in client applications. The tiling scheme defines where tile boundaries will exist. ![]() This group of options allows you to specify the fundamental settings for your cache. If you're using the exploded cache format, you see subdirectories for each tile row, and finally, the actual image files that represent a particular column in the row.If you're using the compact cache format (which is recommended), you see bundle files immediately within the level folders. ![]() The structure of these level-of-detail subdirectories varies depending on whether you're using compact storage format or exploded storage format. Within that, there are subdirectories for each level of detail. The top-level directory contains a subdirectory for the particular data frame in the map being cached, which contains a single subdirectory, _alllayers. If you change the service name or map data frame name, you must manually rename the cache folder to match. If the map service is in a folder, the top-level directory is named _. The top-level directory has the same name as the map service unless the service was created in a GIS server folder. The tiles are organized into a directory hierarchy. A geodatabase named status.gdb contains information that ArcGIS shows in its cache status reports. Another file, conf.cdi, contains the default extent information of the service and is required for viewing caches as raster datasets in ArcMap. You can open the server cache directory to examine the cache tiles and tiling scheme file conf.xml. You can optionally remove write access when you finish creating your caches. Be sure to give the ArcGIS Server account write access to the server cache directory so that the server can successfully place the tiles in the directory. For more information, see Add a server directory in Server Manager and Configure a multiple-machine deployment. If you plan to add another GIS server machine to your site, you need to enable file sharing on the server cache directory so it can be seen by all participating machines. To edit a cache directory used by a service, stop that service before changing the cache directory on the caching tab. ![]()
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