Name

ST_Translate — Translates a geometry by given offsets.

Synopsis

geometry ST_Translate(geometry g1, float deltax, float deltay);

geometry ST_Translate(geometry g1, float deltax, float deltay, float deltaz);

Descripción

Returns a new geometry whose coordinates are translated delta x,delta y,delta z units. Units are based on the units defined in spatial reference (SRID) for this geometry. M coordinates are preserved.

[Note]

Anterior a 1.3.4, esta función daba errores si se utilizaba con geometrias que contenían CURVES. Esto se corrigió en 1.3.4+

Disponibilidad: 1.2.2

This function supports 3d and will not drop the z-index.

This method supports Circular Strings and Curves.

This function supports M coordinates.

Ejemplos

Move a point 1 degree longitude

SELECT ST_AsText(ST_Translate(ST_GeomFromText('POINT(-71.01 42.37)',4326),1,0)) AS wgs_transgeomtxt;
POINT(-70.01 42.37)

Move a linestring 1 degree longitude and 1/2 degree latitude

SELECT ST_AsText(ST_Translate(ST_GeomFromText('LINESTRING(-71.01 42.37,-71.11 42.38)',4326),1,0.5)) AS wgs_transgeomtxt;
LINESTRING(-70.01 42.87,-70.11 42.88)

Move a 3d point

SELECT ST_AsEWKT(ST_Translate(CAST('POINT(0 0 0)' AS geometry), 5, 12,3));
POINT(5 12 3)

Move points with a measure coordinate

SELECT ST_AsEWKT(ST_Translate(ST_GeomFromEWKT('POINTM(0 0 11)'), 5, 12));
POINTM(5 12 11)
SELECT ST_AsEWKT(ST_Translate(ST_GeomFromEWKT('POINT(0 0 7 11)'), 5, 12, 3));
POINT(5 12 10 11)

Move a curve and a point

SELECT ST_AsText(ST_Translate(ST_Collect('CURVEPOLYGON(CIRCULARSTRING(4 3,3.12 0.878,1 0,-1.121 5.1213,6 7, 8 9,4 3))','POINT(1 3)'),1,2));
GEOMETRYCOLLECTION(CURVEPOLYGON(CIRCULARSTRING(5 5,4.12 2.878,2 2,-0.121 7.1213,7 9,9 11,5 5)),POINT(2 5))