st_delaunaytriangles
How PostGIS runs Delaunay Triangulation: st_delaunaytriangles.
| Engine | PostGIS |
|---|---|
| Tool name | st_delaunaytriangles |
| Interface | sql |
| Implements | Delaunay Triangulation |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
g1 | geometry | no | Not stated | Not stated | Not stated |
tolerance | double precision | no | 0.0 | Not stated | Not stated |
flags | integer | no | 0 | Not stated | Not stated |
SQL overloads
-
st_delaunaytriangles(g1 geometry, tolerance double precision DEFAULT 0.0, flags integer DEFAULT 0) → geometry
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
layer | #1 | Not stated |
tolerance | #2 | Not stated |
Differences from the operation
- Triangulates the vertices of one geometry: ST_Collect the points first for one triangulation of the layer.
- Returns a GeometryCollection of triangles (flags 0); flags 1 returns the edges, 2 a TIN.
Harvested by the postgis harvester from engine version
3.7.0. Names can change when an engine is harvested again.