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EPSG Geodetic Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate transformations and related units of measurement, originated by a member of the European Petroleum Survey Group (EPSG) in 1985. Each entity is assigned an EPSG code between 1024 and 32767,[1][2] along with a standard machine-readable well-known text (WKT) representation. The dataset is maintained by the IOGP Geomatics Committee.[3]
Most geographic information systems (GIS) and GIS libraries use EPSG codes as Spatial Reference System Identifiers (SRIDs) and EPSG definition data for identifying coordinate reference systems, projections, and performing transformations between these systems, while some also support SRIDs issued by other organizations (such as Esri).
- ^ Cain, Jim (9 May 2013). "Coordinate Reference Systems (Best Practices for Assignment, Manipulation and Conversion in GIS Systems)" (PDF). 2013 ESRI Petroleum GIS Conference: 39. Archived (PDF) from the original on 23 October 2021. Retrieved 3 October 2019.
- ^ "Policies and procedures for EPSG Dataset data management". EPSG. IOGP. December 2022. p. 18. Retrieved 5 May 2023.
Codes for primary entity types are within the range 1024 to 32766 inclusive
- ^ "IOGP Geomatics Committee (poster)" (PDF). Archived from the original (PDF) on 2019-10-03. Retrieved 2019-10-03.
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