Problem solver, outdoor lover, coder of many things.
I'm a huge techno fan!
Public
Edited
Sep 22, 2023
1 star
centralCambridgeCoords = [
[544748.5367636156, 258372.49178149243, 9.61],
[544750.8907704452, 258365.94195330486, 9.61]
]
// Create a context for a given definition
ctx = new Geodesy(definition)
cambridgeWebMercCoords = {
return ctx.forward(centralCambridgeCoords);
}
roundTrip = {
return ctx.roundTrip(centralCambridgeCoords);
}
hydeParkWgs84 = [51.505, -0.09]
wgs84WebmercCtx = new Geodesy("webmerc lat_0=0 lon_0=0 x_0=0 y_0=0 ellps=WGS84")
hydeParkWebmercCoords = wgs84WebmercCtx.forward([hydeParkWgs84.map(c => c * Math.PI/180)])
hydeParkRoundTripBackToWgs84 = wgs84WebmercCtx.inverse(hydeParkWebmercCoords)[0].map(c => c * 180/Math.PI)
geodesyModule = {
const geodesyJs = await import(
"https://unpkg.com/geodesy-wasm@0.2.0/esm/index.js"
);
// When using geodesy-wasm natively we need to import the wasm module separately so we can instantiate the Webassembly
const wasmModule = await import(
"https://unpkg.com/geodesy-wasm@0.2.0/esm/geodesy-wasm.js"
);
// Need to await the default export first to initialize the WebAssembly code
const { memory } = await wasmModule.default();
geodesyJs.GeodesyWasm.set_panic_hook();
return [geodesyJs, memory];
}
Geodesy = {
return geodesyModule[0].Geodesy;
}
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.