Lightweight implementation of HEALPix geometry functions, wrapped in a numpy interface
copied from cf-staging / hpgeomHPGeom is a lightweight implementation of HEALPix geometry functions. The implementation is based on the geometric functions in the original HEALPix C++ library code. This package has an all-new API, and also includes compatibility functions with the same interface as healpy for an easy transition from healpy to HPGeom. an optional C extension for a serious speed boost.