[3.6.0] - 2019-08-12

Added

• h3ToCenterChild function to find center child at given resolution (#267)
• getPentagonIndexes (and pentagonIndexCount) function to find pentagons at given resolution (#267)

Fixed

• Fix bounds check for local IJ coordinates (#271)

[3.5.0] - 2019-07-22

Added

• CMake options for excluding filter applications or benchmarks from the build. (#247)
• h3GetFaces function to find icosahedron faces for an index, and helper function maxFaceCount (#253)

Changed

• Argument parsing for all filter applications is more flexible. (#238)

Fixed

• Fix printing program name in h3ToHier error messages. (#254)

[3.4.4] - 2019-05-30

Changed

• Local coordinate spaces cannot cross more than one icosahedron edge. (#234)
• All dynamic internal memory allocations happen on the heap instead of the stack. (#235)
• Argument parsing for h3ToGeo, geoToH3, and h3ToGeoBoundary is more flexible. (#227)

[3.4.3] - 2019-05-02

Added

• localIjToH3 filter application (#222)
• An option to print distances in the kRing filter application (#222)

Changed

• Arguments parsing for kRing filter application is more flexible. (#224)

Fixed

• benchmarkPolyfill allocates its memory on the heap (#198)
• Fixed constraints of vertex longitudes (#213)
• Zero only input to uncompact does not produce an error (#223)

[3.4.2] - 2019-02-21

Changed

• binding-functions build target generates an ASCII file on Windows (#193)

[3.4.1] - 2019-02-15

Fixed

• binding-functions build target fixed when running the build out of source (#188)

[3.4.0] - 2019-01-23

Added

• getRes0Indexes function for getting all base cells, and helper function res0IndexCount (#174)
• Include defined constants for current library version (#173)

Thanks @zachasme for the contributions!

[3.3.0] - 2018-12-25

Merry Christmas!

Added

• h3Line and h3LineSize functions for getting the line of indexes between some start and end (inclusive) (#165)

Changed

• Indexes in deleted pentagon subsequences are not considered valid.

[3.2.0] - 2018-10-04

Added

• experimentalH3ToLocalIj function for getting local coordinates for an index. (#102)
• experimentalLocalIjToH3 function for getting an index from local coordinates. (#102)
• Benchmarks for the kRing method for k's of size 10, 20, 30, and 40. (#142, #144)

Changed

• Internal h3ToIjk function renamed to h3ToLocalIjk. (#102)
• h3ToIjk filter application replaced with h3ToLocalIj. (#102)

Fixed

• Added #include <stdio.h> to benchmark.h (#142)

[3.1.1] - 2018-08-29

Fixed

• Fixed bounding box bug for polygons crossing the antimeridian (#130)
• Normalize output of h3SetToMultiPolygon to align with the GeoJSON spec, ensuring that each polygon has only one outer loop, followed by holes (#131)

Changed

• Longitude outputs are now guaranteed to be in the range [-Pi, Pi]. (#93)
• Implemented closed form formula for maxKringSize. Source: https://oeis.org/A003215 (#138)
• Improved test and benchmark harnesses (#126, #128)