Name
ST_StraightSkeleton — 도형으로부터 직선 골격(straight skeleton)을 계산합니다.
Synopsis
geometry ST_StraightSkeleton(geometry geom);
설명
![[Warning]](../images/warning.png)
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ST_StraightSkeleton is deprecated as of 3.5.0. Use CG_StraightSkeleton instead. |
2.1.0 버전부터 사용할 수 있습니다.
This method needs SFCGAL backend.
This function supports 3d and will not drop the z-index.
This function supports Polyhedral surfaces.
This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).
예시
SELECT ST_StraightSkeleton(ST_GeomFromText('POLYGON (( 190 190, 10 190, 10 10, 190 10, 190 20, 160 30, 60 30, 60 130, 190 140, 190 190 ))'));
 원본 폴리곤 |
 폴리곤의 직선 골격 |