A force-directed network diagram renders an undirected graph dataset from a CSV file on an HTML canvas. Using D3 v5’s `forceSimulation`, nodes are positioned with `forceX`, `forceY`, `forceCollide`, `forceManyBody`, and `forceLink` forces. The canvas `getContext('2d')` API draws circular nodes and connecting links, updating each simulation tick. The visualization demonstrates raw canvas rendering with D3’s simulation engine, showing a central hub with many peripheral connections.