Full grasshopper definition

This is my final definition for the Stihl Treetop Walkway, at Westonbirt National Arboretum. The definition was my first project in grassshopper, and if starting again I would have used more referenced geometry. Part of the process for me was to also explore the extent to which geometry could be described as a series of relationships. The only geometric input was a curve to define the route, and the topography. THis produced a detailed model which was the basis for all of the construction documentation.