func.ST_SetEffectiveArea
Sets the effective area for each vertex, using the Visvalingam-Whyatt algorithm
Geometry Processing
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 March 11, 2024 at 3:25 PM EST: Creation of the expression expression library (3110a17)