Nome
CG_Triangulate — Triangulates a polygonal geometry
Sinossi
geometry CG_Triangulate( geometry geom );
Descrizione
Triangulates a polygonal geometry.
Performed by the SFCGAL module
![[Nota]](../images/note.png)
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NOTE: this function returns a geometry representing the triangulated result. |
Availability: 3.5.0
Questo metodo richiede il backend SFCGAL.
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
Si veda anche
CG_ConstrainedDelaunayTriangles, ST_DelaunayTriangles, ST_TriangulatePolygon