To view the wkid and latestWkid properties, request the JSON of a map layer by appending “ ?f=pjson” to the end of the service URL. Area of use: World between 85.06S and 85.06N. The Web Mercator projection is used, with latitude limits of around 85. Example showing vector tiles in EPSG:4326 (styled using ol- mapbox -style) loaded from maptiler. A tiled web map, slippy map (in OpenStreetMap terminology) or tile map is a map displayed in. latitude and longitude to vectors in the mercator coordinate space. latestWkid identifies the current WKID value as of a given software release, associated with the same spatial reference. Relative to WGS 84 / World Mercator (CRS code 3395) gives errors of 0.7 percent in scale and differences in northing of up to 43km in the map (21km on the ground). Mapbox Studio utilizes the web mercator projection. js material and also add glow map support. This is documented in the following ArcGIS REST API help page: Geometry objects.įor ArcGIS version 10.1 and later, a new property ( latestWkid) was added. The reason behind this is to ensure backwards compatibility with older spatial data servers. ![]() The JSON wkid property is always the value originally assigned to a spatial reference when it was initially created. Choose from street & satellite maps of the entire world or create a custom map design. ![]() World coordinates in Google Maps are measured from the Mercator projections origin. The well-known ID (WKID) for a given spatial reference may occasionally change.Īt ArcGIS version 10, the WKID for the WGS 1984 Web Mercator (Auxiliary Sphere) projection was changed from 102100 to 3857. MapTiler makes it easy to build maps for your websites and mobile apps. A world coordinate is independent of the current zoom level, in other words. However, from the REST endpoint of a hosted service, the spatial reference being used may appear as 102100 (3857). Why does ArcGIS Online use a deprecated spatial reference (102100) for hosted services?ĪrcGIS Online uses the WGS_1984_Web_Mercator_Auxiliary_Sphere (WKID 3857) projection. FAQ: Why does ArcGIS Online use a deprecated spatial reference (102100) for hosted services? Question
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