CG_Area
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Name

CG_Area — Calculates the area of a geometry

Synopsis

double precision CG_Area( geometry geom );

Descrição

Calculates the area of a geometry.

Performed by the SFCGAL module

[Note]

NOTE: this function returns a double precision value representing the area.

Availability: 3.5.0

This method needs SFCGAL backend.

Exemplos de Geometria

SELECT CG_Area('Polygon ((0 0, 0 5, 5 5, 5 0, 0 0), (1 1, 2 1, 2 2, 1 2, 1 1), (3 3, 4 3, 4 4, 3 4, 3 3))');
                cg_area
                --------
                25
                (1 row)

Veja também

ST_3DArea, ST_Area