This is a refactoring of PouletFrit's C# port of as3delaunay.

I've added the capability to recalculate diagrams "in-place" without discarding the site objects and essentially creating a completely new diagram every time. The diagram also does not immediately ditch the vertices after computing.

By guaranteeing the sites are constant however, means that any specific edge or vertex cannot be guaranteed to exist.

There were also a large number of style edits for clarity, consistency, and explicitness, as well as typo and punctuation edits on comments.

I made these changes because I needed a Voronoi diagram that is editable.

The library should largely work like the original, but there were some minor changes to the interfaces of various classes. As such, if you're looking to retain the exact interface of the original library, it would be best not to use this version.

The diagram class Voronoi now also exposes a Sites property which gives a List<Vector2f>. This allows you to retrieve and edit the sites of the diagram directly. You then use the Update() method on a Voronoi object to recalculate all the edges and vertices around the updated site locations.