A force-directed network diagram maps interconnected nodes and edges, using positioned circles and lines to reveal cluster structure. The visualization is built with React 19 and D3, where `d3.forceSimulation` computes layout physics, while `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter` define attraction, repulsion, and centering forces. Node and link elements are rendered as SVG circles and lines, with drag behavior enabled via D3’s `drag()` handler to let users rearrange the graph interactively.