search

numbats / woylier

Interpolations between bases rather than planes for the tourr package
https://numbats.github.io/woylier/
Other
0 stars 1 forks source link

Angular speed #9

Closed uschiLaa closed 2 years ago

uschiLaa commented 2 years ago

Maybe the angular speed is based on geodesic distance right now? Looks like it keeps changing, sometimes very fast because of in-plane rotation.

dicook commented 2 years ago

Oh, you mean it even works, sort of! Yes, the step size is something that I'm not quite sure how to enter.

There will be a lot of within-plane rotation, which is what prevents it from being generally used. The geodesic is more aesthetic.

Maybe we can spend a few minutes on this tonight after Sherry's meeting.

uschiLaa commented 2 years ago

This is still using the interpolate function, which is computing the number of steps as

dists <- sapply(2:n, function(i) { proj_dist(basis_set[[i - 1]], basis_set[[i]]) }) steps <- sum(ceiling(dists/angle)) * 2

so using the geodesic distance (dists) and the angular step size (angle). Would need an alternative version of calculating the distances that accounts for the in-plane spin.