The threads about Voronoi (or Qhull) are all very old now, i can't find the proper DLL to install and it seems very complicated (cever.org website is down now).
Can you point me a modern way to implement Voronoi Diagrams in OpenBuilding Generative Components ?
I have written this article for creating 2D Voronoi in GenerativeComponents. You can also download the relevant GNT, sample file from the same link. Here you would also be able to query useful Voronoi Properties like
Voronoi Diagram in GenerativeComponents - Virtuosity
I hope it helps.