List of available polygons for id = 223474

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-05-12 09:19:39.303445	2311	1.98796392724695	WKT	GeoJSON	poly	image
0.000000-0.000500-0.000500	2025-05-27 12:06:22.185549	729	1.98801232390546	WKT	GeoJSON	poly	image
0.000000-0.003000-0.003000	2025-05-13 15:31:54.820325	202	1.9862265731784	WKT	GeoJSON	poly	image
0.000000-0.005000-0.005000	2025-05-27 11:40:54.702926	114	1.98702038238162	WKT	GeoJSON	poly	image
0.000000-0.100000-0.100000	2025-05-30 10:55:29.318807	10	1.92353840616714	WKT	GeoJSON	poly	image
0.001000-0.000100-0.000100	2025-05-30 17:38:27.387382	1541	1.99001127886251	WKT	GeoJSON	poly	image
0.001000-0.010000-0.010000	2025-05-18 15:27:17.085811	998	1.99271172024455	WKT	GeoJSON	poly	image
0.005000-0.005000-0.005000	2025-05-28 02:42:38.094694	131	2.00009999750012	WKT	GeoJSON	poly	image
0.020000-0.005000-0.005000	2025-05-20 08:28:08.640421	84	2.03015393505025	WKT	GeoJSON	poly	image
0.100000-0.005000-0.005000	2025-05-27 16:15:21.855825	71	2.18659552729809	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)))