st_simplify
How PostGIS runs Simplify: st_simplify.
| Engine | PostGIS |
|---|---|
| Tool name | st_simplify |
| Interface | sql |
| Implements | Simplify |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
Not stated
SQL overloads
-
st_simplify(geometry, double precision) → geometry -
st_simplify(geometry, double precision, boolean) → geometry
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
layer | #1 | Not stated |
tolerance | #2 | Not stated |
unit | Not stated | always crs-units |
preserve_topology | Not stated | always no. Use ST_SimplifyPreserveTopology to keep topology. |
Differences from the operation
- Can return invalid or collapsed geometries; the optional third argument keeps collapsed ones.
Harvested by the postgis harvester from engine version
3.7.0. Names can change when an engine is harvested again.