Voronoi_Bone structure_Voronax help

Hello all, I've been having problems for the past few weeks and I've tried to figure it myself but I just can't! I've been on almost even Voronoi discussion on here.. Here is my problem:

I want to produce a 3d voronoi structure on a mesh pavilion, I want the voronoi to climb up my columns and into the roof, basically. I have tried many different approaches, all of them have a dead end for me.

The best success I've had is taking the mesh that I want, turned it into a nurbs in Rhino then I used the Voronax Rhino plugin to receive my voronoi lines, but I can't get them to close because I need to find the center so I can scale and loft between my lines.

Below is the definition.

I've tried Qhull but I can't even get that to work, I've tried for days now as well wondering if that would help. Also, this structure that I have. Would it be better to make it with surfaces as opposed to a mesh?