List of available polygons for id = 2954782

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2024-12-17 06:48:43.868871	305	1.82173937950685	WKT	GeoJSON	poly	image
0.000000-0.000500-0.000500	2025-05-10 04:14:38.024758	227	1.8215886610319	WKT	GeoJSON	poly	image
0.000000-0.003000-0.003000	2025-03-24 01:08:15.075108	131	1.82257098627187	WKT	GeoJSON	poly	image

Generate a simplified polygon

X, Y, Z are parameters for the following postgis equation. The default values are chosen according to the size of the original geometry to give a slighty bigger geometry, without too many nodes.

Note that:

X > 0 will give a polygon bigger than the original geometry, and guaranteed to contain it.
X = 0 will give a polygon similar to the original geometry.
X < 0 will give a polygon smaller than the original geometry, and guaranteed to be smaller.

SQL requests:

X > 0: ST_Union(ST_MakeValid(ST_SimplifyPreserveTopology(geom, 0.00001)), ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))
X = 0: ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))
X < 0: ST_Intersection(geom, ST_Buffer(ST_SimplifyPreserveTopology(ST_SnapToGrid(ST_Buffer(geom, X), Y), Z)))