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Trait geo::algorithm::rotate::RotatePoint[−][src]

pub trait RotatePoint<T> {
    fn rotate_around_point(&self, angle: T, point: Point<T>) -> Self
    where
        T: CoordFloat;
}

Required methods

Rotate a Geometry around an arbitrary point by an angle, given in degrees

Positive angles are counter-clockwise, and negative angles are clockwise rotations.

Units
  • angle: degrees
Examples
use geo::algorithm::rotate::RotatePoint;
use geo::{line_string, point};

let ls = line_string![
    (x: 0.0, y: 0.0),
    (x: 5.0, y: 5.0),
    (x: 10.0, y: 10.0)
];

let rotated = ls.rotate_around_point(
    -45.0,
    point!(x: 10.0, y: 0.0),
);

assert_eq!(rotated, line_string![
    (x: 2.9289321881345245, y: 7.071067811865475),
    (x: 10.0, y: 7.0710678118654755),
    (x: 17.071067811865476, y: 7.0710678118654755)
]);

Implementors