area

Calculates the area of a geometry.

Areal geometries have a non-zero area. Others return 0.

Parameters

Name	Type	Description
geometry	Geometry	The geometry for which the area is calculated

Returns

number

The area of the geometry

Examples

const pt = point([ 3, 1 ]);
const ptArea = area(pt); // 0
const line = lineString([ [ 8, 1 ], [ 9, 1 ] ]);
const lineArea = area(pt); // 0
const poly = polygon([ [ [ 3, 3 ], [ 9, 4 ], [ 5, 1 ], [ 3, 3 ] ] ]);
const polyArea = area(poly); // 7

const pt = point([ 3, 1 ]); const ptArea = area(pt); // 0 const line = lineString([ [ 8, 1 ], [ 9, 1 ] ]); const lineArea = area(pt); // 0 const poly = polygon([ [ [ 3, 3 ], [ 9, 4 ], [ 5, 1 ], [ 3, 3 ] ] ]); const polyArea = area(poly); // 7