PostGIS

ST_StraightSkeleton

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7.21. SFCGAL Functions

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Name

ST_StraightSkeleton — Compute a straight skeleton from a geometry

Synopsis

geometry +`*`+ST_StraightSkeleton*(`geometry `geom`)`;

Description

Availability: 2.1.0

check This method needs SFCGAL backend.

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

check This function supports Polyhedral surfaces.

check This function supports Triangles and Triangulated Irregular Network Surfaces (TIN).

Examples

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 ))'));

st_straightskeleton01

Original polygon

st_straightskeleton02

Straight Skeleton of polygon

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