A Visual Guide to Voronoi Graph & Delaunay Triangulation Voronoi diagrams help us find the closest points from an arbitrary point. Let’s start by displaying a set of points on a plane. The Voronoi diagram draws boundaries between each of those points. Around each point, regions will develop called the Voronoi regions. Let’s see how we would draw those boundaries. Each boundary should be in the middle of two points. Let’s begin by drawing a boundary between point 1 and point 2. The boundary should be directly in the middle separating the two points. Let’s move to creating a boundary