Changes in version 0.4.0 (2026-02-27) - Package repository has changed to now https://github.com/AustralianAntarcticDivision/traipse, for issues and information. - traipse now depends on CRAN package geographiclib. - Entirely removed geosphere dependency. - Now using geographiclib, have equivalence for bearings, angles, and turns. Better accuracy now for 'track_intermediate()' on exact ellipsoidal calculations. - Fixed: track_angle and track_turn now return all-NA for fewer than 3 input points. Changes in version 0.3.0 (2022-10-10) - New function 'track_grid()' to compute cell index for points for a grid. - Fixed test failing as newer R allows raw numeric input to date-time. Changes in version 0.2.5 (2021-10-12) - Patch fix for new {geosphere} >= 1.5.14, thanks to CRAN notification pretest reverse dependency checking. Changes in version 0.2.0 (2020-10-25) - New function track_query() similar to track_intermediate() but for arbitrary points in time. In-development. - New function track_intermediate() to perform interpolation along a great circle between input locations. The interpolation step may be set by distance or duration and date-time is interpolated if included. - Metres, seconds, degrees, everywhere. Changes in version 0.1.0 (2019-07-02) - Fixed Value documentation for various functions, thanks to CRAN feedback. - New functions track_time, track_speed,track_distance_to() and track_bearing_to(). - Added basic functions track_distance, track_angle, track_turn, and track_bearing.