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Is WGS84 a Mercator?
Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator or WGS 84/Pseudo-Mercator is a variant of the Mercator map projection and is the de facto standard for Web mapping applications. It rose to prominence when Google Maps adopted it in 2005.
What is an ESRI Web map?
An ArcGIS web map is an interactive display of geographic information that you can use to tell stories and answer questions. Maps contain a basemap, a set of data layers (many of which include interactive pop-up windows with information about the data), an extent, and navigation tools to pan and zoom. …
What is Web Mercator auxiliary sphere?
Answer. WGS 1984 Web Mercator and WGS 1984 Web Mercator (Auxiliary Sphere) use a conformal projection that preserves direction and the shape of data but distorts distance and area. Published in 1569 by Gerardus Mercator, the Mercator projection was created for use in navigation.
Which is the best version of Mercator for ArcGIS?
Its variant, the Web Mercator projection, is standard for web maps and online services. The projection is often misused for world maps, wall charts, and thematic mapping on web maps. There are four variants available in ArcGIS: Mercator is also known as Mercator variant B.
What kind of coordinate system is Web Mercator?
Web Mercator Coordinate System The Web Mercator coordinate system is also known as Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator, and Pseudo-Mercator. It is the de facto standard for web maps and online services.
Is the Mercator projection suitable for web mapping?
When used for web mapping with EPSG:3857, the upper and lower limits of latitude are at approximately 85°03’04.0636″ north and south. Large area distortion makes the Mercator projection unsuitable for general geographic world maps and thematic mapping.
How big is a Web Mercator tile size?
Coordinate system: WGS 1984 Web Mercator (Auxiliary Sphere) Tile size of map cache: 256 pixels by 256 pixels Levels of detail: The number of cached levels of detail varies among maps.