List of available polygons for id = 563230

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2022-01-16 09:57:27.613416	3466	1.34012252128929	WKT	GeoJSON	poly	image
0.000004-0.000001-0.000001	2022-03-02 14:35:09.246421	3474	1.34013112429792	WKT	GeoJSON	poly	image
0.000040-0.000010-0.000010	2022-03-02 14:30:40.403224	3098	1.34020516280158	WKT	GeoJSON	poly	image
0.000400-0.000100-0.000100	2022-02-15 12:12:11.434702	1406	1.3409240545236	WKT	GeoJSON	poly	image
0.020000-0.005000-0.005000	2022-01-16 09:57:57.238337	130	1.38161137806548	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)))