Crate genom 

Fast reverse geocoding with enriched location data.

Converts (latitude, longitude) into a Place with 18 fields including city, region, country, postal code, timezone, currency, EU/DST status.

if let Some(place) = genom::lookup(40.7128, -74.0060) {
    println!("{}, {}", place.city, place.country_name);
}

How it works

• Database is built once at compile time from GeoNames + Natural Earth and embedded as a compact binary blob (geo.bin).
• On first call, the blob is parsed lazily into zero-copy &'static slices plus two FxHashMap indexes (grid → city offset, country → postal section).
• Lookup expands a grid-cell ring until the nearest city is found, refines with the nearest postal entry for that country, then enriches with country/currency/continent/timezone metadata.

See Geocoder, Place, Location, enrichment.

Modules

enrichment

Data enrichment module that adds computed fields to raw geographic data.

Structs

Geocoder

Reverse-geocoding engine backed by the embedded binary database.

Location

A (latitude, longitude) pair with distance calculation.

Place

Enriched location data returned by lookup.

Functions

lookup

Reverse-geocode (latitude, longitude) using the global Geocoder.