h3

[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)

[3.1.0] - 2018-08-03

Added

• h3Distance function for determining the grid distance between H3 indexes (#83)
• Internal h3ToIjk function for getting IJK+ coordinates from an index (#83)
• Internal ijkDistance function for determining the grid distance between IJK+ coordinates (#83)
• h3ToIjk filter application for experimenting with h3ToIjk (#83)

Fixed

• Don't require a C++ compiler (#107)

Changed

• Most dynamic internal memory allocations happen on the heap instead of the stack (#100)

[3.0.8] - 2018-07-18

Added

• Added Direction enum, replacing int and defined constants (#77)

Fixed

• Ensured unused memory is cleared for pentagon children. (#84)
• Fixed compiler warnings in h3ToGeoHier and h3ToGeoBoundaryHier. (#90)
• Fixed a segfault in h3SetToLinkedGeo (#94)

Changed

• Warnings are not errors by default. (#90)

[3.0.7] - 2018-06-08

Added

• Generator for the faceCenterPoint table (#67)
• Generator for number of indexes per resolution (#69)
• Added CMake WARNINGS_AS_ERRORS option, default on, for Clang and GCC (#70)
• Added CMake TEST_WRAPPER setting when WRAP_VALGRIND is on (#66)

Changed

• Moved Vec3d structure to vec3d.h (#67)
• Added input validation when getting the origin or destination of an edge (#74)

[3.0.6] - 2018-06-01

Changed

• Changed signature of internal function h3NeighborRotations.
• Do not require support for hexRange, hexRanges, or hexRangeDistances in the bindings. These functions may be deprecated in the public API in future releases; consumers should use kRing and kRingDistances instead.
• Performance improvement in core indexing logic for geoToH3 (thanks @wewei!)

Fixed

• Fixed duplicate vertex in h3ToGeoBoundary for certain class III hexagons (#46)

Added

• Release guide