[quote user="quasi_modo"]I am trying to create a program (in VBA) that simplifies shape elements...[/quote]
I think what you want is an algorithm to compute a convex hull.
It will be hard to write that algorithm using VBA, or at least an efficient algorithm using VBA. We have an example solution written using C++ and Boost algorithms. You're welcome to the compiled app. — e-mail me off-line to request it.