The geo crate provides geospatial primitive types such as Point, LineString, and Polygon, and provides algorithms and operations such as:

• Area and centroid calculation
• Simplification and convex hull operations
• Euclidean and Haversine distance measurement
• Intersection checks
• Transformation to and from PostGIS types
• Affine transforms such as rotation and translation.

Please refer to the documentation for a complete list.

The primitive types also provide the basis for other functionality in the Geo ecosystem, including:

• Coordinate transformation and projection
• Serialization to and from GeoJSON and WKT
• Geocoding
• Working with GPS data

use geo::{Polygon, LineString};
use geo::convexhull::ConvexHull;

// An L shape
let coords = vec![(0.0, 0.0), (4.0, 0.0), (4.0, 1.0), (1.0, 1.0), (1.0, 4.0), (0.0, 4.0), (0.0, 0.0)];
// conversions to geo types are provided from several kinds of coordinate sequences
let poly = Polygon::new(coords.into(), vec![]);

// uses the QuickHull algorithm to calculate the polygon's convex hull
let hull = poly.convex_hull();
let correct = vec![(0.0, 0.0), (0.0, 4.0), (1.0, 4.0), (4.0, 1.0), (4.0, 0.0), (0.0, 0.0)]
assert_eq!(hull.exterior, correct.into());

Contributions are welcome! Have a look at the issues, and open a pull request if you'd like to add an algorithm or some functionality.

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.