Function geometric_features::area

pub fn area(polygon: Polygon<'_>) -> f64

Compute the area of a polygon

use geometric_features::area;
let polygon: Vec<(f64,f64)> = vec![
    (0.0, 0.0),
    (1.0, 0.0),
    (1.0, 1.0),
    (0.0, 1.0),
];
assert_eq!(area(&polygon), 1.0);