Spatial Program Packing

Hi all,

I would like to create a definition, that can pack a spatial program (boxes) into a 3D boundary - architecture site.

I started with a PackRat definition available on http://yconst.com/, that can basicaly do what I want.

But I have two problems:

1. How can I define the shape of 3D boundary? The definition only take one coordinate and doesn't count with its shape.

2. How can I add also sub-programs, that can be packed into already packed programs?

Attaching .3dm, .gh, and .gha

Thank you very much! Rudolph