Changelog

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

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.5.0] - 2026-09-01

Added

  • Measure.final_bearing/2 — computes the bearing at the destination point (as opposed to bearing/2 which gives the initial bearing at the origin)
  • Helpers.assert_wgs84!/1 and guards on all public geodesic functions against non-WGS84 SRIDs
  • Math.approx/2 for rounding Point coordinates to a given precision

Changed

  • Measure.distance/3 now returns raw geodesic values; callers can use Math.rounded/2 for display rounding
  • Measure.close_to/4 uses raw distance and includes points exactly at the maximum threshold
  • Classification.nearest_point/3 ranks candidates by raw distance
  • Empty geometries now return zero for aggregate measurements, :error for point-producing measurements, and false for polygon containment
  • WGS84 validation now checks every member of geometry and point collections recursively
  • Length and area APIs now reject unsupported units with explicit ArgumentError messages
  • Newly constructed WGS84 geometry and measurement-derived points now carry srid: 4326; coordinate-only transformations preserve the source SRID
  • Circle and destination options consistently use :units; unknown option names now raise instead of silently using defaults
  • The supported runtime floor is now Elixir 1.15 / OTP 26, with CI coverage through Elixir 1.18 / OTP 28
  • Non-WGS84 SRID errors now explain reprojection, the nil assumption, and how to correct stale WGS84 metadata explicitly

Fixed

  • Measure.along/3 now geodesically interpolates mid-segment points instead of snapping to the nearest vertex
  • Measure.length_of/2 now measures independent geometry paths without adding fictitious segments between them

[0.4.0] - 2026-04-12

Added

  • Classification.point_in_polygon?/3
  • Classification.points_within_polygon/2
  • Classification.nearest_point/3
  • Measure.centroid/1
  • Helpers.bbox_polygon/1

[0.3.1] - 2025-08-19

Added

  • Geo 0.4.x support

[0.3.0] - 2025-03-24

Added

  • Measure.destination/3
  • Transformation.circle/3

[0.2.0] - 2024-03-05

Added

  • Measure.area/1
  • Measure.bearing/2

Fixed

  • Bad mod/2 error

Changed

  • Library cleanup

[0.1.0] - 2019-05-01

First release.