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Spatial reference system

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Title: Spatial reference system  
Author: World Heritage Encyclopedia
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Subject: Geodesy, Geographical distance, History of geodesy, Horizontal position representation, Reference ellipsoid
Collection: Cartography, Geodesy, Geographic Coordinate Systems
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Spatial reference system

A spatial reference system (SRS) or coordinate reference system (CRS) is a coordinate-based local, regional or global system used to locate geographical entities. A spatial reference system defines a specific map projection, as well as transformations between different spatial reference systems. Spatial reference systems are defined by the OGC's Simple feature access using well-known text, and support has been implemented by several standards-based geographic information systems. Spatial reference systems can be referred to using a SRID integer, including EPSG codes defined by the International Association of Oil and Gas Producers.

Some systems are:

It is specified in ISO 19111:2007 Geographic information—Spatial referencing by coordinates, also published as OGC Abstract Specification, Topic 2: Spatial referencing by coordinate.[1]

See also

External links

  • .orgspatialreference – A website that defines spatial reference systems, in a variety of formats.


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