List of available polygons for id = 189890

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-04-03 15:40:14.063274	18221	0.935131577147949	WKT	GeoJSON	poly	image
0.000200-0.000200-0.000200	2025-04-21 05:15:04.721414	2427	0.935501683590148	WKT	GeoJSON	poly	image
0.001000-0.000100-0.000100	2025-04-03 15:40:15.933285	2668	0.937092764885099	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)))