• Replace pure txt files by binary npz files (check if load is actually faster)
• Replace licence of package to BSD-3 (license of filter remains CC-BY-4.0)

Currently, the library exists only as plain text, with deployed packages for selected languages.

Another idea is to also deploy binaries, e.g., in hdf5.

These are the principal ToDo's to get to a usable state. Additional "ToDo's" are tracked in #2, #3, and #4.

• Write Digital Linear Filters section, with references to most important articles.
• Write What is libdlf.
• Add code examples of its usage.
• Add CI test to validate json file. #12
• Add CI tests for all filters.
• Add automatic Zenodo and badge. 528aa3b

Filters and permissions

This is an issue to keep track of filters we would like to add. At the same time, we can track here that authors have given permissions to add their filters under the CC-BY-4.0 license.

• Hankel filter (801pt) of Anderson, TOMS, 1982 #13
• Hankel filter (J0 61, 120; J1 47, 140 pt) of Guptasarma and Singh, GP, 1997 #25
• Hankel filters (61pt, 121pt, 241pt) of Kong, Geophysical Prospecting, 2007 #11
• Hankel filters (101pt, 201pt, 401pt) and Fourier filters (81pt, 241pt, 601pt) of Key, Geophysics, 2009 #5
• Hankel filters (51pt, 101pt, 201pt) and Fourier filters (101pt, 201pt) of Key, Geophysics, 2012 #5
• Hankel filter (201 pt, 2001pt) of Werthmüller et al., Geophysics, 2019 #5
• Fourier filter (50pt) of Grayver et al., Journal of Geophysical Research: Space Physics, 2021 #10

Packages

The library contains all the filters as plain text files. However, we want to add CI-scripts (in /packages/language-name/) which create deployable packages for different programming languages.

Planned so far:

• Python #6
• Julia #17
• Matlab
• Fortran
• C
• ...?

The current implementation/use of setuptools_scm seems to get cross with conda-forge:

conda-forge/staged-recipes#15868

• retool readme file to point to libdlf and have short installation and usage instructions
• add GHA to trigger @JuliaRegistrator register when new version deployed to DLFlib.jl