CG_Triangulate
이전  8.3. SFCGAL Processing and Relationship Functions  다음

제목

CG_Triangulate — Triangulates a polygonal geometry

요약

geometry CG_Triangulate( geometry geom );

설명

Triangulates a polygonal geometry.

Performed by the SFCGAL module

[참고]

NOTE: this function returns a geometry representing the triangulated result.

Availability: 3.5.0

This method needs SFCGAL backend.

도형 예시

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))'
);
래스터 출력
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
Geometry figure for visual-cg-triangulate-01