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CHANGELOG.md

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Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

The public API of this library consists of the functions declared in file h3api.h.in.

[Unreleased]

[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)

[3.3.0] - 2018-12-25

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!)

[3.0.5] - 2018-04-27

Fixed

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

Added

  • Release guide

[3.0.4] - 2018-04-16

Added

  • Assertions when allocating memory on the heap.

Changed

  • Most internal memory allocations happen on the stack instead of the heap.

[3.0.3] - 2018-03-19

Added

  • CMake config installation to ease use of h3 from CMake projects.
  • Add CMake toolchain file to set build options upfront.
  • Add CMake C_CLANG_TIDY property to integrate clang-tidy checks during build.
  • YouCompleteMe completion support.

Changed

  • Improved resilience to out of range inputs.
  • Minimum CMake version to 3.1.
  • Set CMAKE_C_STANDARD to 11 instead of using compiler flag -std=c1x.
  • Use CMAKE_POSITION_INDEPENDENT_CODE instead of using compiler flag -fPIC.
  • Rename library target from h3.1 to h3 with SONAME property of 1.

Removed

  • CMake H3_COMPILER option in favor of built-in CMAKE_C_COMPILER.
  • CMake BUILD_STATIC option in favor of built-in BUILD_SHARED_LIBS.
  • CMake ENABLE_TESTS option in favor of built-in BUILD_TESTING.
  • File globbing in CMake in favor of listing source files.

[3.0.2] - 2018-01-24

Removed

  • Removed the H3IndexFat internal structure.

Changed

  • Simplified build process on Windows.

Fixed

  • Fixed an issue where tests would fail on ARM systems.

[3.0.1] - 2018-01-18

Added

  • Added a make install target.

Changed

  • Improved compatability with building on Windows.
  • Fixed various cases where the test suite could crash or not compile.

[3.0.0] - 2018-01-08

Added

  • First public release.