[ad8e]

I have used this in some commercial software before (maybe Illustrator?); my experience was not positive. When you move a node, some not-so-close curves start wiggling, and you think, "I already set that part correctly, stop moving please". It behaves very poorly around rounded corners. Adding points causes the curves to shift, usually not how you want, and then you try to add more points, which causes more shifts, etc. Arc length-based interpolation might do better in this respect, as opposed to the (# of points)-based interpolation which I expect it used.

The alternative, which obeys similar principles, is the Pencil tool. This simply spams out a ton of points to match what you draw. https://news.ycombinator.com/item?id=37460009 mentions that these points can be capably reduced, which could serve your purpose.