HEALPix porting to Javascript

Porting of HEALPix C++ library to Vanilla Javascript. It only supports NEST pixelation of the sky.

How to use the generated library available in Nodejs repository

Include the following dependency into package.json file in your project:

"dependencies": {
        "healpixjs": "^1.0.3",
    },

Start using HEALPixjs in your project

import { Healpix } from "healpixjs"
import { Pointing } from "healpixjs"
import { Vec3 } from "healpixjs"

const nside = 8
const hpx = new Healpix(nside)

const thetaRadians = 0.73304
const phiRadians = 1.43117
const ptg = new Pointing(null, false, thetaRadians, phiRadians)
const pixelTileNumber = hpx.ang2pix(ptg)
const vec3 = hpx.pix2vec(pixelTileNumber)

Instalation

• Prerequisites: Node.js v<=16 (see installation instructions)

• Clone repo:

git clone https://github.com/fab77/healpixjs.git

• Move to the healpixjs folder:

cd healpixjs

• Install the required dev modules:

npm i

• Compile the project:

npm run build:prod

Built With

Node: v16.17.0 webpack: 5.74.0

Contributing

Versioning

Authors

• Fabrizio Giordano

License

This project is licensed under the GPL License - see the LICENSE.md file for details

Acknowledgments

• Yago Ascasibar