map-engine-rust 🦀🗺️

Zero-dependency map engine core in Rust — a port of the TypeScript maps-engine.

Provides the math every slippy-map needs, without any rendering or DOM:

Module	What it does
`projection`	Web Mercator lon/lat ↔ pixel math
`tile`	XYZ tile ids, bounds, quadkeys, children/parent
`geo`	Haversine distance, bearing, destination point
`geofence`	Polygon & circle geofences, point-in-polygon
`view`	Camera state: center, zoom, bearing, pitch
`cluster`	Grid-based marker clustering
`heatmap`	Heatmap intensity grids
`draw`	Drawing session with undo/redo
`measure`	Distance/area measurement + human formatting
`navigation`	Turn-by-turn maneuver detection (VI/EN), progress tracking
`geojson`	Minimal GeoJSON types

Usage

[dependencies]
map_engine = "0.1.0"

use map_engine::{LonLat, projection, tile, geo};

let hanoi = LonLat::new(105.85, 21.02);

// Web Mercator projection
let (px, py) = projection::to_pixels(hanoi.lon, hanoi.lat, 14);

// Tile containing the point
let t = tile::Tile::from_lon_lat(hanoi.lon, hanoi.lat, 14);
println!("tile {}/{}/{} quadkey {}", t.x, t.y, t.z, t.quadkey());

// Distance
let haiphong = LonLat::new(106.68, 20.86);
println!("{:.1} km", geo::haversine(hanoi, haiphong) / 1000.0);

Development

cargo test          # 43 unit tests
cargo clippy        # lint, must be clean
cargo fmt --check   # formatting

map-engine-rust 🦀🗺️ (Tiếng Việt)

Nhân bản đồ (map engine) thuần Rust, không phụ thuộc thư viện ngoài — port từ bản TypeScript maps-engine.

Cung cấp toàn bộ phép toán mà bản đồ trượt (slippy-map) cần, không dính dáng gì đến render hay DOM. Xem bảng module ở trên.

Dùng thử

cargo test          # 43 test
cargo clippy        # lint phải sạch
cargo fmt --check   # format

License