geohash

The geohash library offers a robust implementation of the Geohash algorithm in Rust. This algorithm is fundamental for converting precise longitude and latitude coordinates into a compact, hashed string format, and vice versa. It's a crucial tool for spatial indexing, allowing for efficient storage and retrieval of geographic data, as well as for performing proximity searches by comparing geohash prefixes.

Demonstrating its utility, the library provides straightforward functions for common operations. Developers can easily encode a Coord struct (e.g., Coord { x: 112.5584f64, y: 37.8324f64 }) into a geohash string of a specified length. Conversely, it allows for decoding a geohash string back into a Coord with associated longitude and latitude error estimates. The library also includes functionality to find neighboring geohashes in various directions, which is essential for spatial queries.

Key components of the geohash library include the Coord struct for representing 2D coordinates, Rect for defining axis-aligned bounding boxes, and the Direction enum for specifying neighbor search directions. Core functions like encode, decode, decode_bbox, neighbor, and neighbors provide comprehensive capabilities for working with geohashes programmatically, making it a valuable resource for geospatial applications built with Rust.