A Rust implementation of the H3 geospatial indexing system, compiled to WebAssembly for use in JavaScript projects.
Experimental: this package compiles some functions from h3o to WASM. Performance might be slower than the reference h3-js implementation
h3o is a Rust reimplementation of the H3 geospatial indexing system, designed with the following goals:
- Leverage Rust's strong typing for safer usage.
- Provide a 100% Rust solution, eliminating C dependencies for painless compilation to WebAssembly and easier link-time optimization.
- Match or exceed the performance of the reference H3 library.
h3o-wasm exposes h3o functions to Javascript
The h3o-wasm package is distributed via npm.
npm install h3o-wasm- Install the rust toolchain in order to have cargo installed by following this guide.
- run
cargo install h3o
import init, * as h3o from "h3o-wasm";
async function run() {
await init(); // Initialize the WASM module
const h3Index = h3o.latLngToCell(37.3615593, -122.0553238, 7);
console.log("H3 Index: ", h3Index);
}
run();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)/¯