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Change Log

All notable changes to this project will be documented in this file.

This project adheres to Semantic Versioning.

We track the MAJOR and MINOR version levels of Uber's H3 project (https://github.com/uber/h3) but maintain independent patch levels so we can make small fixes and non breaking changes.

[3.7.3] - Unreleased

Fixed

  • H3.from_string(nil) should not crash

[3.7.2] - 2020-07-17

Fixed

  • kRing of invalid indexes should not crash.

[3.7.1] - 2020-10-7

Added

  • Area and haversine distance functions:
    • cellAreaRads2
    • cellAreaKm2
    • cellAreaM2
    • pointDistRads
    • pointDistKm
    • pointDistM
    • exactEdgeLengthRads
    • exactEdgeLengthKm
    • exactEdgeLengthM

Changed

  • Speeds up getH3UnidirectionalEdgeBoundary by about 3x.

Fixed

  • Finding invalid edge boundaries should not crash.

[3.6.4] - 2020-7-2

Changed

  • Reinstate new polyfill algorithm for up to 3x perf boost.

[3.6.2] - 2020-1-8

Changed

  • Revert new polyfill algorithm until reported issues are fixed.
  • Remove deprecated methods: (#66)

[3.6.1] - 2019-11-23

Fixed

  • compact handles zero length input correctly.
  • bboxHexRadius scaling factor adjusted to guarantee containment for polyfill.
  • polyfill new algorithm for up to 3x perf boost.
  • Fix CMake targets for KML generation.

[3.6.0] - 2019-8-14

Added

  • center_child method to find center child at given resolution (#62).
  • pentagons (and pentagon_count) method to find pentagons at given resolution (#62).

[3.5.1] - 2019-8-5

Changed

  • Renamed 26 methods to be more idiomatic with Ruby conventions. The old names are deprecated until 2020 when they will be removed (#59).
  • Added Zeitwerk as the code loader.

[3.5.0] - 2019-7-25

Added

  • h3_faces and max_face_count support (#56)

Changed

  • New CMake options to prevent unnecessary building of filter apps and benchmarks.

[3.4.4] - 2019-6-4

Changed

  • Internal h3 bugfixes.

[3.4.0] - 2019-1-24

Added

  • res_0_indexes and res_0_index_count support (#51).

[3.3.1] - 2019-1-4

Added

  • h3_line and h3_line_size support (#43).

Changed

  • Use FFI types to enforce sane resolution values (#41).
  • Internal refactoring (#44).
  • Include and compile H3 when gem installs (#45). The gem will use a locally built .so and ignore any H3 versions that are installed on the system. This is achieved by submoduling the H3 C code and updating to the matching version tag.
  • Various documentation corrections.

[3.3.0] - 2019-1-4 (yanked)

[3.2.0] - 2018-12-21

Initial release.