Geometry Processing


func.ST_SetEffectiveArea

Sets the effective area for each vertex, using the Visvalingam-Whyatt algorithm

func.ST_SimplifyVW

Returns a "simplified" version of the given geometry using the Visvalingam-Whyatt algorithm

func.ST_SimplifyPreserveTopology

Simplifies a geometry by removing points that would fall within a specified distance tolerance.

func.ST_Simplify

Returns a "simplified" version of the given geometry using the Douglas-Peucker algorithm

func.ST_SharedPaths

Returns a collection containing paths shared by the two input geometries

func.ST_Polygonize

Creates a GeometryCollection containing the polygons formed by the constituent linework of a set of geometries

func.ST_PointOnSurface

Returns a POINT guaranteed to intersect a surface

func.ST_OffsetCurve

Return an offset line at a given distance and side from an input line

func.ST_MinimumBoundingCircle

Returns the smallest circle polygon that contains a geometry

func.ST_DelaunayTriangles

Return the Delaunay triangulation of the vertices of the input geometry

func.ST_ConvexHull

Computes the convex hull of a geometry. The convex hull is the smallest convex geometry that encloses all geometries in the input

func.ST_ConcaveHull

The concave hull of a geometry represents a possibly concave geometry that encloses the input geometry

func.ST_Centroid

Computes a point which is the geometric center of mass of a geometry

func.ST_BuildArea

Creates an areal geometry formed by the constituent linework of the input geometry

func.ST_Buffer

Returns a geometry/geography that represents all points whose distance from this Geometry/geography is less than or equal to distance

func.St_Accum

Aggregate. Constructs an array of geometries

Last modified April 06, 2022 at 10:08 AM EST: Initial Documentation Commit (371ae8f)