I've recently been reading several links about "exoskeleton."

http://www.grasshopper3d.com/profiles/blogs/introducing-exoskeleton-a-wireframe-thickening-tool

It requires convex hull3d,such as giftwrap3d, or quickhull 3d.
The latter have numerous javascript and java implementations, which I have begun to look at.
Similar quickhull 3d could be done with a Moi script. There is some relation to voronoi...

http://www.cise.ufl.edu/~ungor/courses/fall06/papers/QuickHull.pdf

- Brian

There is another paper, previously linked to...