List of available polygons for id = 71525

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-05-24 04:57:22.188225	925	0.246288242963646	WKT	GeoJSON	poly	image
0.004000-0.001000-0.001000	2025-05-26 04:02:44.161285	68	0.255039212671306	WKT	GeoJSON	poly	image
0.020000-0.005000-0.005000	2025-06-06 18:55:54.930400	19	0.285700892543233	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)))