ST_Buffer el método devuelve la geometría que representa todos los puntos cuya distancia desde cualquier punto de la geometría de entrada es menor o igual a una distancia especificada.
SELECT
"SHAPEID",
"SHAPE".ST_asWKT() AS "WKT",
"SHAPE".ST_Buffer(0.5).ST_asWKT() AS "BUFFER_WKT"
FROM "TUTORIAL_GEO"."SPATIALSHAPES"
WHERE "SHAPEID" IN (3, 7, 11)
ORDER BY 1 ASC;
Consulte el siguiente SQL para usar …
SELECT
ST_asSVGAggr("SHAPE"),
ST_asSVGAggr("BUFFER")
FROM (
SELECT
"SHAPE",
"SHAPE".ST_Buffer(0.5) AS "BUFFER"
FROM "TUTORIAL_GEO"."SPATIALSHAPES"
WHERE "SHAPEID" IN (3, 7, 11)
);
… Y modifique la salida SVG para una mejor visualización.
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</svg>
