Macro geo::polygon

macro_rules! polygon {
    () => { ... };
    (exterior : [$((x : $exterior_x : expr, y : $exterior_y : expr)), * $(,) ?],
 interiors :
 [$([$((x : $interior_x : expr, y : $interior_y : expr)), * $(,) ?]), * $(,)
  ?] $(,) ?) => { ... };
    (exterior : [$($exterior_coord : expr), * $(,) ?], interiors :
 [$([$($interior_coord : expr), * $(,) ?]), * $(,) ?] $(,) ?) => { ... };
    ($((x : $x : expr, y : $y : expr)), * $(,) ?) => { ... };
    ($($coord : expr), * $(,) ?) => { ... };
}

Creates a Polygon containing the given coordinates.

polygon![Coordinate OR (x: <number>, y: <number>), …]

// or

polygon!(
    exterior: [Coordinate OR (x: <number>, y: <number>), …],
    interiors: [
        [Coordinate OR (x: <number>, y: <number>), …],
        …
    ],
)

Examples

Creating a Polygon without interior rings, supplying x/y values:

use geo_types::polygon;

let poly = polygon![
    (x: -111., y: 45.),
    (x: -111., y: 41.),
    (x: -104., y: 41.),
    (x: -104., y: 45.),
];

assert_eq!(
    poly.exterior()[1],
    geo_types::Coordinate { x: -111., y: 41. },
);

Creating a Polygon, supplying x/y values:

use geo_types::polygon;

let poly = polygon!(
    exterior: [
        (x: -111., y: 45.),
        (x: -111., y: 41.),
        (x: -104., y: 41.),
        (x: -104., y: 45.),
    ],
    interiors: [
        [
            (x: -110., y: 44.),
            (x: -110., y: 42.),
            (x: -105., y: 42.),
            (x: -105., y: 44.),
        ],
    ],
);

assert_eq!(
    poly.exterior()[1],
    geo_types::Coordinate { x: -111., y: 41. },
);