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Release Notes

1.3.2 (12-June-2024)

  • Fixed a bug in the Python implementation of inner1d. [#265]
  • Removed the degree argument from the length and angle functions in the spherical_geometry.great_circle_arc module as it was never working correctly with the math_util module and add unnecessary complication. [#265]
  • Build wheel with Numpy 2.0 release candidate ahead of Numpy 2.0 release [#279]

1.3.1 (5-November-2023)

  • Updated the built-in qd library to version 2.3.24. [#258]

1.3.0 (1-November-2023)

  • Add documentation to polygon.py for the SphericalPolygon method multi_union has exponential time behavior and cannot be used for a large number of polynomials [#229]
  • Added code to SphericalPolygon.multi_union() to pre-process polygon list and remove nearly identical polygons to avoid a bug in the graph code that could cause a crash when some of the input polygons are nearly identical. This workaround can be undone in the future once #232 is resolved. [#233]
  • Removed unused spherical_geometry.utils module. [#239]
  • Minimum supported version for Python is now 3.9. [#239]
  • Minimum supported version for NumPy is now 1.20. [#239]
  • Wheels for several common architectures are now available on PyPI. [#243]
  • Replaced private numpy.core._umath_tests.inner1d() with an alternative implementation. [#253]
  • Fixed a bug in the math_util.angles() function that would result in crash when one of the input vectors is a null vector. [#254]
  • Enhanced the code in the SphericalPolygon.convex_hull() to ignore points that lead to null vectors in computations. [#254]
  • Fixed a bug in quad-precision functions normalize and intersection functions affecting numerous other functions. [#256]

1.2.23 (10-October-2022)

  • Pin astropy min version to 5.0.4. [#218]
  • Set Python min version to 3.8. [#219]
  • Fix problem reported where angle of 180 degrees results in an error with the C version of the code. [#223]
  • Use a different algorithm for square root in the qd library that seems to be less prone to accuracy loss. This helps the bug in the math_util.c due to which angle() returns a NaN for coplanar vectors where the angle between the surface points should be 180 degrees and enhances the solution from #223. Also, use qd epsilon instead of arbitrary value for rounding error check. [#224]

1.2.22 (04-January-2022)

  • Fixed segmentation fault occuring in the math_util module when spherical_geometry is used with numpy version 1.22 due to incorrect ntypes value being used when defining generalized universal functions. [#216]

1.2.21 (30-December-2021)

Maintenance release.

1.2.20 (12-May-2021)

  • Added a new exception class MalformedPolygonError which replaces ValueError which replaced AssertionError in the Graph._sanity_check() method. Also replaced ValueError with RuntimeError in Graph.Edge.follow() method. Added error messages to some other exceptions. [#207]
  • Updated CI/CD to use github actions, instead of Travis CI.
  • To comply with bandit all assert statements were changed to standard if checks and raising the appropriate errors.

1.2.17 (15-August-2019)

  • Fixed unexpected behavior if using pip on Windows

1.2.16 (13-August-2019)

  • Updated qd library to 2.3.22
  • Reimplement the ability to link to system's qd (export USE_SYSTEM_QD=1)

1.2.15 (31-July-2019)

  • Fixes compilation issue under Windows

1.2.13 (30-July-2019)

  • Undo-ing changes from release 1.2.11 (PRs #170 and #173) due to crashes in the union of multi-polygons until a better solution is found. [#176]

1.2.12 (27-June-2019)

  • Package structure was updated.

1.2.11 (24-June-2019)

  • Increase the dimension of the confusion region in which two nodes are considered to be equal. This reduces the likelihood of crashes when computing intersections of nearly identical polygons. [#170, #173]

1.2.10 (01-March-2019)

  • Fix incorrect query of astropy version information to deal with deprecation of _naxis1 and _naxis2 WCS attributes. [#165]

1.2.9 (22-February-2019)

  • Fixed a bug introduced in version 1.2.8.

1.2.8 (22-February-2019)

  • Add backwards compatibility with astropy 3.1.0: <3.1.0 uses wcs._naxis and >=3.1.0 uses wcs.pixel_shape.

1.2.7 (14-November-2018)

  • Restored _naxis, pixel_shape not ready yet.

1.2.6 (13-November-2018)

  • Replaced _naxis with pixel_shape.
  • Updated README file.
  • Removed debugging code from graph.py.

1.2.5 (10-July-2018)

  • Added a method to create a polygon from the convex hull of a list of points.

1.2.4 (28-June-2018)

  • The public methods in SingleSphericalPolygon now match the methods in SphericalPolygon so that objects of either type can be used interchangably (for the most part.) SphericalPolygon now subclasses SingleSphericalPolygon.

1.2.3 (20-June-2018)

  • Every method with lonlat in its name now has an alias with lonlat replaced by radec.
  • The class _SingleSphericalPolygon has been renamed to SingleSphericalPolygon. The former name has been retained as an alias.
  • The from_lonlat (and from_radec) method is now available in SingleSphericalPolygon as well as SphericalPolygon.
  • The methods iter_polygons_flat have been renamed to to __iter__. The former name has been retained as an alias.