You might be familiar with these, but GP wrote a couple of excellent pieces on Euler spirals: https://raphlinus.github.io/curves/2021/02/19/parallel-curves.htm

You might be familiar with these, but GP wrote a couple of excellent pieces on Euler spirals: https://raphlinus.github.io/curves/2021/02/19/parallel-curves.html https://raphlinus.github.io/curves/2021/02/19/parallel-curve... https://levien.com/phd/euler_hist.pdf https://levien.com/phd/euler_hist.pdf