Like any projection, web mercator has inherent limitations first, you will notice that no data is cached at the north or south pole this is a limitation of all. Web mercator, google web mercator, spherical mercator, wgs 84 web mercator or wgs 84/pseudo-mercator is a variant of the mercator projection and is the de facto. Ngasig0011_100_webmerc 2014-02-18 1 1 scope this document contains general technical information on the web mercator map projection to include its. Recently, arcgis online services became available in the same “web mercator” projection used by google maps and bing maps if you use the new arcgis online. Web mercator is a meters based projection that encompasses the entire world, except for the polar regions spherical or web mercator coordinate system.
Figure 2221 a mercator projection of the world, showing the 60 utm coordinate system zones, each divided into north and south halves at the equator. Epsg:3857 is a spherical mercator projection coordinate system popularized by web services such as google and later openstreetmap. I understand what the difference is between the web mercator projection and web mercator auxiliary sphere (wmas) i also understand that both google and esri have. The mercator projection is a cylindrical map an interactive java applet to study the metric deformations of the mercator projection web mercator.
For arcgis server web mapping applications users, using the web mercator projection is recommended 2 how do i share cached map services published using. The mercator projection is a map projection that was widely used for navigation since loxodromes are straight lines (although great circles are curved) the following.
The maximum latitude (both north and south) supported by a web mercator (epsg:3857) projection technically, the mercator projection is defined for any latitude up to. Most maps that we see on the web use the web mercator projection web mercator gained its popularity because it provides an efficient way for a two-dimen.
Web mercator projection & raster tile maps two cornerstones of online map service providers emmanuel stefanakis dept of geodesy & geomatics engineering. Nga released an advisory notice on web mercator in military and intelligence applications arcgis supports and can project data between many different coordinate systems.