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1.0.3 (unreleased)

  • Require astropy 4 or newer. [#219]

1.0.2 (2023-12-12)

  • lonlat_to_healpix now correctly returns -1 if the longitude or latitude is NaN or infinite. [#208]

1.0.1 (2023-11-28)

  • Allow building using any version of Numpy between 1.25 and 2. [#201]
  • Build wheels for PyPI. [#200]

1.0.0 (2023-08-21)

  • Drop support for Python 3.7 and 3.8, which are not supported by the latest minor release of Numpy (1.25).
  • Build binary wheels using the Python limited API.
  • Remove warning about API stability. The API is now considered stable.

0.7 (2022-09-15)

  • Added new methods healpix_to_xyz and xyz_to_healpix to the high level interface. [#153]
  • The frame keyword argument for the high-level HEALPix class may now be a frame name, frame instance, or frame class. [#156]
  • On instantiation, the HEALPix class checks the order argument. [#162]
  • Drop support for Python 3.6, which has passed end-of-life. [#166]

0.6 (2021-03-10)

  • Update package infrastructure to follow APE17 guidelines. [#142]
  • Added new functions healpix_to_xyz and xyz_to_healpix to convert to/from cartesian coordinates. [#141]
  • Add HEALPix.level property to the high-level interface. This is a shortcut for the nside_to_level function. [#147]

0.5 (2019-11-25)

  • Update package infrastructure to use setup.cfg. [#134]
  • Make sure that Numpy is declared as a build-time dependency. [#134]
  • Update astropy-helpers to v3.2.2. [#134]
  • Update minimum required Python version to 3.6. [#125]
  • Add HEALPix.from_header. [#127]
  • Clean up C code to avoid compilation warnings. [#118, #119, #120, #121, #122, #123]
  • Fix unit tests on 32-bit architectures. [#117]
  • Fix compatibility with Numpy 1.16 and later. [#116]

0.4 (2018-12-18)

  • Healpix rangesearch cleanup [#113]
  • Update astropy-helpers to v2.0.8 [#112]
  • Rewrite core module in C to make healpix_to_lonlat and lonlat_to_healpix broadcastable over both pixel index and nside. [#110]

0.3.1 (2018-10-24)

  • Ensure .c files are included in tar file.

0.3 (2018-10-24)

  • Remove OpenMP from astropy-healpix [#108]
  • Fix bilinear interpolation of invalid values [#106]
  • Add uniq to (level, ipix) and inverse function [#105]
  • compute z more stably; improve on z2dec [#101]
  • use more stable cos(Dec) term [#94]
  • Fix get_interp_weights for phi=None case [#89]
  • Add pix2vec, vec2pix, ang2vec [#73]
  • Add pixel_resolution_to_nside function. [#31]

0.2 (2017-10-15)

  • Expand benchmarks to include ang2pix, nest2ring and ring2nest. [#62]
  • Use OpenMP to parallelize the Cython wrappers. [#59]
  • Renamed the healpix_neighbours function to neighbours and added a wrapper to the high-level class. [#61]
  • Fix bilinear interpolation which was being done incorrectly, and added a new bilinear_interpolation_weights function to get the interpolation weights. [#63]

0.1 (2017-10-01)

  • Initial release