List of available polygons for id = 41485

params ▾	timestamp	NPoints	Length	WKT	GeoJSON	poly	Image
0	2025-06-25 09:09:10.633280	6637	0.635394698816067	WKT	GeoJSON	poly	image
0.004000-0.001000-0.001000	2025-06-25 09:09:23.074635	419	0.643680044742726	WKT	GeoJSON	poly	image
0.006000-0.001000-0.001000	2025-06-30 10:42:16.434727	357	0.647655772768221	WKT	GeoJSON	poly	image
0.008000-0.001000-0.006000	2025-07-02 18:40:07.796797	86	0.650035383652304	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)))