Does exist some rules of this "help curvature" drawn during the move of control point of a curve ?
(here a Spline shown by its Control Points)

Or it's just intuitive ?



PS Karsten made a Script of such curvature
http://moi3d.com/forum/index.php?webtag=MOI&msg=6634.1

Hi Pilou, I'm not sure if it does exactly what you need but there is a curvature analysis script here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6634.1

- Michael

No I have it - i just give the same link! :)



It's more how the use of this curvature can help for draw a curve!

Hi Pilou, it can help you to see more clearly if some areas are bent tightly in a small area, and also help identify inflection points where curvature is switching from one side to the other.

- Michael

Thanks for the infos!