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0.7 (unreleased)

  • Made C extension in overlapArea.c thread-safe by removing global variables.

  • Made it possible to control whether to output debugging information from overlapArea.c by setting DEBUG_OVERLAP_AREA=1 at build-time.

0.6 (2019-11-01)

  • Added support for using any WCS that conforms to the WCS API described in the Astropy Proposal for Enhancements 14 (APE 14). The independent_celestial_slices= argument to reproject_interp has been deprecated since it is no longer needed, as transformations are automatically done in the most efficient way possible. [#166]

  • Include a warning for high resolution images with reproject_exact, since if the pixels are <0.05", precision issues can occur. [#200]

  • Added a new reproject_and_coadd function for doing mosaicking of individual images, and added section in documentation about mosaicking. [#186]

  • Added a new reproject.adaptive sub-package that implements the DeForest (2004) algorithm for reprojection. [#52]

  • Fixed a bug that caused 'exact' reprojection results to have numerical issues when doing identity transformations. [#190]

0.5.1 (2019-09-01)

  • Fixed a bug that caused 'exact' reprojection to fail if one or more of the WCSes was oriented such that E and W were flipped. [#188]

0.5 (2019-06-13)

  • Improve parse_output_projection to make it so that the output projection can be specified as a filename. [#150]

  • Fixed a bug that caused HEALPix maps in RING order to not be correctly interpreted. [#163]

  • Make it possible to specify the output array for reprojection using the output_array= keyword argument. [#115]

0.4 (2018-01-29)

  • Refactored HEALPix reprojection code to use the astropy-healpix package instead of healpy. [#139]

  • Added the ability to specify an output array in reproject_interp, which permits the use of memory-mapped arrays and therefore provides the capability to handle data cubes much larger than memory [#115]

  • Fix test 32-bit test failures. [#146]

  • Fix an issue with reprojecting images where there are two solutions along the line of sight by forcing round-tripping of coordinate conversions [#129]

  • Explicitly define default HDU as 0 for normal reprojection and 1 for HEALPix reprojection. [#119]

  • Added a function to find the optimal WCS for a set of images. [#136, #137]

0.3.2 (2017-10-22)

  • Fix a regression that caused certain all-sky images (e.g. the Mellinger Milky Way Panorama, http://www.milkywaysky.com) to be reprojected to all NaNs when the output WCS was in Mollweide coordinates. [#124]

0.3.1 (2016-07-07)

  • Include missing license file in tarball.

  • Updated documentation to remove warnings about early versions.

0.3 (2016-07-06)

  • Allow users to pass a field= option to reproject_from_healpix to access different fields in a HEALPIX file. [#86]

  • Significant improvements to performance when the input data is a large memory-mapped array. [#105]

  • Significant refactoring of interpolating reprojection to improve support for n-dimensional arrays, optionally including two celestial axes (in which case the coordinate transformation is taken into account). [#96, #102]

0.2 (2015-10-29)

  • Fixed a bug that caused reprojection by interpolation to be truncated for rectangular output images.

0.1 (2015-05-08)

  • Initial Release.