Name
CG_Triangulate — Triangulates a polygonal geometry
Synopsis
geometry CG_Triangulate(
geometry
geom
);
Description
Triangulates a polygonal geometry.
Performed by the SFCGAL module
![[Note]](../images/note.png)
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NOTE: this function returns a geometry representing the triangulated result. |
Availability: 3.5.0
This method needs SFCGAL backend.
Geometry Examples
Code
SELECT CG_Triangulate(
'POLYGON((0 0,1 0,1 1,0 1,0 0),
(0.2 0.2,0.2 0.8,0.8 0.8,0.8 0.2,0.2 0.2))'
);
Output
TIN(((0.8 0.2,0.2 0.2,1 0,0.8 0.2)),((0.2 0.2,0 0,1 0,0.2 0.2)),((1 1,0.8 0.8,0.8 0.2,1 1)),((0 1,0 0,0.2 0.2,0 1)),((0 1,0.2 0.8,1 1,0 1)),((0 1,0.2 0.2,0.2 0.8,0 1)),((0.2 0.8,0.8 0.8,1 1,0.2 0.8)),((0.2 0.8,0.2 0.2,0.8 0.2,0.2 0.8)),((1 1,0.8 0.2,1 0,1 1)),((0.8 0.8,0.2 0.8,0.8 0.2,0.8 0.8)))
Figure