ST_AsKML — Return the geometry as a KML element.
text ST_AsKML(
geometry geom, integer maxdecimaldigits=15, text nprefix=NULL)
;
text ST_AsKML(
geography geog, integer maxdecimaldigits=15, text nprefix=NULL)
;
Return the geometry as a Keyhole Markup Language (KML) element. default maximum number of decimal places is 15, default namespace is no prefix.
Using the |
Requires PostGIS be compiled with Proj support. Use PostGIS_Full_Version to confirm you have proj support compiled in. |
Availability: 1.2.2 - later variants that include version param came in 1.3.2 |
Enhanced: 2.0.0 - Add prefix namespace, use default and named args |
Changed: 3.0.0 - Removed the "versioned" variant signature |
AsKML output will not work with geometries that do not have an SRID |
This function supports 3d and will not drop the z-index.
SELECT ST_AsKML(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326)); st_askml -------- <Polygon><outerBoundaryIs><LinearRing><coordinates>0,0 0,1 1,1 1,0 0,0</coordinates></LinearRing></outerBoundaryIs></Polygon> --3d linestring SELECT ST_AsKML('SRID=4326;LINESTRING(1 2 3, 4 5 6)'); <LineString><coordinates>1,2,3 4,5,6</coordinates></LineString>