Sinucyli projection?

[Fil]

A projection by Daniel Strebe (who also gave the hufnagel projection)

Implementation by @toja at https://observablehq.com/@toja/sinucyli-projection

Don't miss the crazy video at https://www.youtube.com/watch?v=H0CHE1kXkrk

[toja]

I think the sinucyli would be a nice addition.

Here's a notebook with the Lambert azimuthal equa area -> Albers conic equal area blend, that is shown in the video and Strebe gave as another example in the paper on his blending technique for equal area projections: https://observablehq.com/d/4401559a2da8e3c7.

There are some clipping issues, don't have an idea how to solve them yet.

[Fil]

I'm sending you a suggestion with geoClipPolygon. It's not perfect because it clips up to the north pole even when that is not necessary, but it should be a good start.

[Fil]

I've computed the inverse projections for sinucyli (suggestion at https://observablehq.com/d/59c257e99766c363).