common file format
kml
source
gml
source
osm xml
source
gpx
source
wkt
source
wkb
source
shapfiles (.shp)
source
geojson
source
topojson
source
support in postgis function
Well-known text (WKT)
- ST_GeomFromText(text, srid) returns geometry
- ST_AsText(geometry) returns text
- ST_AsEWKT(geometry) returns text
Well-known binary (WKB)
- ST_GeomFromWKB(bytea) returns geometry
- ST_AsBinary(geometry) returns bytea
- ST_AsEWKB(geometry) returns bytea
Geographic Mark-up Language (GML)
- ST_GeomFromGML(text) returns geometry
- ST_AsGML(geometry) returns text
Keyhole Mark-up Language (KML)
- ST_GeomFromKML(text) returns geometry
- ST_AsKML(geometry) returns text
GeoJSON
- ST_AsGeoJSON(geometry) returns text
Scalable Vector Graphics (SVG)
- ST_AsSVG(geometry) returns text