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| Filename extensions | .json, .geojson |
|---|---|
| Internet media type | application/geo+json[1] |
| Type of format | GIS file format |
| Extended from | JSON |
| Standard | RFC 7946 |
| Open format? | yes |
| Website | geojson |
GeoJSON[1] is an open standard format designed for representing simple geographical features, along with their non-spatial attributes. It is based on the JSON format.
The features include points (therefore addresses and locations), line strings (therefore streets, highways and boundaries), polygons (countries, provinces, tracts of land), and multi-part collections of these types. GeoJSON features need not represent entities of the physical world only; mobile routing and navigation apps, for example, might describe their service coverage using GeoJSON.[2]
The GeoJSON format differs from other GIS standards in that it was written and is maintained not by a formal standards organization, but by an Internet working group of developers.[3]
A notable offspring of GeoJSON is TopoJSON, an extension of GeoJSON that encodes geospatial topology and that typically provides smaller file sizes.
- ^ a b Butler, Howard; Daly, Martin; Doyle, Allan; Gillies, Sean; Hagen, Stefan; Schaub, Tim (August 2016). RFC 7946. IETF. doi:10.17487/RFC7946.
- ^ "Providing Directions". developer.apple.com.
- ^ "GeoJSON Info Page". lists.geojson.org.