This visualization demonstrates a heuristic for labeling scatterplots using Voronoi tessellation. A set of 200 normally distributed points is rendered as small circles, with each point's Voronoi cell drawn as a gray polygon. A orange line connects each point to its cell’s centroid. The code only labels points whose cell area exceeds a threshold (2000), placing the index number at the point’s position. The label’s orientation—top, right, bottom, or left—is determined by the angle between the point and its cell’s centroid, computed using `Math.atan2`. Implemented with D3 v3, it uses `d3.geom.voronoi` with `clipExtent` and `d3.geom.polygon` to generate and analyze cells.