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#![deny(missing_docs)]
#[macro_use]
extern crate serde_derive;
#[macro_use]
extern crate lazy_static;
use bincode::deserialize;
use kdtree::distance::squared_euclidean;
use kdtree::KdTree;
use record::Record;
pub mod country;
pub mod record;
lazy_static! {
static ref GEO: KdTree<f32, Record, [f32; 2]> = {
let encoded = include_bytes!("data/output.bin");
deserialize(&encoded[..]).unwrap()
};
}
pub fn search<'a>(lat: f32, lon: f32) -> Option<(f32, &'a record::Record)> {
match GEO.nearest(&[lat, lon], 1, &squared_euclidean) {
Ok(x) => {
if x.is_empty() {
None
} else {
Some(x[0])
}
}
Err(_) => None,
}
}
pub fn nearest<'a>(lat: f32, lon: f32, number: usize) -> Option<Vec<(f32, &'a record::Record)>> {
match GEO.nearest(&[lat, lon], number, &squared_euclidean) {
Ok(x) => {
if x.is_empty() {
None
} else {
Some(x)
}
}
Err(_) => None,
}
}