Just updated our collection of blurbs about #vector curves with the new spline proposed by #Spiro author #RaphLevien on http://drawingcurved.osp.kitchen/r/spiro.md
In multiple links pointed by online discussions, I read about #KochanekBartels spline on https://en.wikipedia.org/wiki/Kochanek%E2%80%93Bartels_spline
Amazing to discover one after the other so many proposals to draw curves digitally, after #Euler, #Bezier, #Hobby (Metapost), Spiro, #κCurves and probably lots of others?