aToC converts simple arcs to wrong curves

[fehergeri13]

Converting simple arc to curve gives wrong result

Expected behavior

Actual behavior

Steps to reproduce the behavior

new SVGPathData(`M 30 30 A 30 30 90 0 0 30 80 Z`).aToC().encode()

will result

M30 30C32.97809201470187 26.434099119281324 24.268705902355805 32.56845225465831 19.76322404376026 41.557791516124894C15.257742185164716 50.54713077759148 15.555408816481538 61.195843818144155 20.55602606358461 69.91945627422297z

https://replit.com/@fehergeri13/BackFocusedDaemons#index.ts

Which seems wrong. You can paste the path data here: https://yqnn.github.io/svg-path-editor/

In comparison the svgpath library works: https://replit.com/@fehergeri13/WetStunningPlanes#index.ts

[nfroidure]

Maybe we should consider using this https://github.com/Pomax/bezierjs ?