seatonullberg / geo

Geospatial primitives and algorithms for Rust

geo

Geospatial Primitives, Algorithms, and Utilities

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

Example

use geo::{line_string, polygon};
use geo::convexhull::ConvexHull;

// An L shape
let poly = polygon![
    (x: 0.0, y: 0.0),
    (x: 4.0, y: 0.0),
    (x: 4.0, y: 1.0),
    (x: 1.0, y: 1.0),
    (x: 1.0, y: 4.0),
    (x: 0.0, y: 4.0),
    (x: 0.0, y: 0.0),
];

// Ccalculate the polygon's convex hull
let hull = poly.convex_hull();

assert_eq!(hull.exterior(), line_string![
    (x: 0.0, y: 0.0),
    (x: 0.0, y: 4.0),
    (x: 1.0, y: 4.0),
    (x: 4.0, y: 1.0),
    (x: 4.0, y: 0.0),
    (x: 0.0, y: 0.0),
]);

Contributing

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.

License

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.

Contribution

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.