I have no problem when it comes to draw a curve with one input and one output variable (ex: F(x)), but I am getting trouble when attempting at drawing airfoil, where each coordinate depends on other parameter.
I'd like to avoid using the import excel macro, because I want an efficient way to iterate shape should I need to change them.
If possible I prefer using the law and parallel curve feature in Catia V5.
We call this as programming. You need to learn how to use fog commands and programming language Visual Basic.
Even so using excel with design tables is still efficient way for airfoil.