https://github.com/HydroniumLabs/h3o

Rust implementation of the H3 geospatial indexing system.
https://github.com/HydroniumLabs/h3o

Last synced: 17 days ago
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Rust implementation of the H3 geospatial indexing system.

• Host: GitHub
• URL: https://github.com/HydroniumLabs/h3o
• Owner: HydroniumLabs
• License: bsd-3-clause
• Created: 2022-12-09T14:04:23.000Z (over 2 years ago)
• Default Branch: master
• Last Pushed: 2025-03-31T20:33:35.000Z (about 1 month ago)
• Last Synced: 2025-03-31T21:26:08.465Z (about 1 month ago)
• Language: Rust
• Homepage:
• Size: 3.1 MB
• Stars: 348
• Watchers: 13
• Forks: 28
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-georust - h3o - Rust implementation of the H3 geospatial indexing system. (Watchlist)

README

        
# h3o

[![Crates.io](https://img.shields.io/crates/v/h3o.svg)](https://crates.io/crates/h3o)

[![Docs.rs](https://docs.rs/h3o/badge.svg)](https://docs.rs/h3o)

[![CI Status](https://github.com/HydroniumLabs/h3o/actions/workflows/ci.yml/badge.svg)](https://github.com/HydroniumLabs/h3o/actions)

[![Coverage](https://img.shields.io/codecov/c/github/HydroniumLabs/h3o)](https://app.codecov.io/gh/HydroniumLabs/h3o)

[![License](https://img.shields.io/badge/license-BSD-green)](https://opensource.org/licenses/BSD-3-Clause)

[Rust](https://rustlang.org) implementation of the [H3](https://h3geo.org)

geospatial indexing system.

## Design

This is not a binding of the reference implementation, but a reimplementation

from scratch.

The goals are:

- To be safer/harder to misuse by leveraging the strong typing of Rust.

- To be 100% Rust (no C deps): painless compilation to WASM, easier LTO, …

- To be as fast (or even faster when possible) than the reference library.

## Installation

### Cargo

* Install the rust toolchain in order to have cargo installed by following

  [this](https://www.rust-lang.org/tools/install) guide.

* run `cargo install h3o`

## Usage

```rust

use h3o::{LatLng, Resolution};

let coord = LatLng::new(37.769377, -122.388903).expect("valid coord");

let cell = coord.to_cell(Resolution::Nine);

```

## Why this name?

Rust is an iron oxide.

A Rust version of H3 is an H3 oxide, in other word $H_3O$ (a.k.a hydronium).

Chemically speaking this is wrong ( $H_3O$ is produced by protonation of

$H_2O$, not oxidation of $H_3$), but ¯\\_(ツ)_/¯

## License

[BSD 3-Clause](./LICENSE)