reference-frames

Coordinates in JAX

A modern, high-performance and comprehensive set of tools for transformations between any standard and user-defined reference frame.

C++ functions and definitions implementing the IERS 2010 standards.

GNSS Precise Point Positioning (PPP) Matlab toolbox

Hierarchical coordinate frames - crystal clear transforms

A collection of robust Local Reference Frame (LRF) algorithms for 3D mesh patches

Notes and programs to assist usage of ITRF/IGS 2014

A Fortran library to interpolate the MOON_PA reference frame without using SPICE.

Relational Magnitudes are invariant vectorial quantities that conserve their value and form under transformations of translation and rotation.

IERS Conventions made easy.

International Terrestrial Reference Frame (ITRF) Matlab Toolbox

Scalar Magnitudes are invariant quantities that conserve their value and form under transformations of translation and rotation, or changes between coordinate systems (Cartesian, polar, spherical, etc.)

Ledger for AI storyboard reference frames, approval status, prompt drift, visual anchors, regression notes, and release review.

Scorecards for AI storyboard shot approval, prompt drift, reference frames, visual anchors, and release QA.

Relevant code for the NPRL CogMap paper (Bassil et al., 2026).

Ledger for AI storyboard reference frames, camera blocking, shot continuity, screen direction, visual anchors, and review decisions.

Notes and programs to assist usage of ITRF/IGS 2014

Gap map for AI storyboard shot coverage, missing beats, reference frames, screen direction, and prompt handoff risks.

Gap log for AI storyboard scene coverage, missing beats, reference frames, continuity checks, and prompt handoff.

Short code for converting TEME reference frame obtained from SGP4 propagation into ITRF and J2000 reference frames.