List of available polygons for id = 913069

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-05-24 06:13:20.235375	11076	5.19216771893624	WKT	GeoJSON	poly	image
0.000000-0.000500-0.000500	2025-05-25 22:08:13.607350	5940	5.19252079918799	WKT	GeoJSON	poly	image
0.000000-0.003000-0.003000	2025-06-07 07:06:06.038355	2217	5.19204670626141	WKT	GeoJSON	poly	image
0.000000-0.009000-0.009000	2025-05-24 22:15:38.582621	951	5.19761493379415	WKT	GeoJSON	poly	image
0.020000-0.005000-0.005000	2025-06-26 00:32:41.214211	839	5.23475166555205	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)))