List of available polygons for id = 347950

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-01-19 12:43:51.648658	1845	0.176560507178361	WKT	GeoJSON	poly	image
0.000000-0.010000-0.010000	2025-04-24 18:07:06.647611	34	0.171172427686238	WKT	GeoJSON	poly	image
0.004000-0.001000-0.001000	2025-01-19 12:55:37.659324	107	0.184200977196105	WKT	GeoJSON	poly	image
0.008000-0.001000-0.006000	2025-05-07 12:25:27.465843	23	0.189129585205488	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)))