A way to enable great-circle interpolation on Plot.link? #1294
Description
In https://observablehq.com/@fil/flight-paths I create a custom link mark, disabling the projection of (x1,y1) and (x2,y2) in order to use geoPath to draw the link¹.
It would be nice to have a way for Plot.link to opt-in to great-circle interpolation, maybe? That option would be the equivalent of curve: auto for Plot.line.
Note that it's already possible to create a line mark with a flattened dataset [source1, target1, source2, target2, ……] and z = floor(i/2).
¹ also using canvas for speed, but that's not the focus of this issue