설명

인코딩된 폴리라인 스트링으로부터 라인스트링을 생성합니다.

Optional precision specifies how many decimal places will be preserved in Encoded Polyline. Value should be the same on encoding and decoding, or coordinates will be incorrect.

참조: http://developers.google.com/maps/documentation/utilities/polylinealgorithm

2.2.0 버전부터 사용할 수 있습니다.

예시

This example creates a LineString from a polyline.

SELECT ST_AsEWKT(ST_LineFromEncodedPolyline('_p~iF~ps|U_ulLnnqC_mqNvxq`@'));

SRID=4326;LINESTRING(-120.2 38.5,-120.95 40.7,-126.453 43.252)

This example selects a different precision than the one used for polyline encoding.

SELECT ST_AsEWKT(ST_LineFromEncodedPolyline('_p~iF~ps|U_ulLnnqC_mqNvxq`@',6));

SRID=4326;LINESTRING(-12.02 3.85,-12.095 4.07,-12.6453 4.3252)

    

참고

ST_AsEncodedPolyline