This example demonstrates a basic forcedirected network graph with three test nodes and two links. The code uses d3.forceSimulation with forceManyBody, forceLink, and forceCenter to calculate node positions, rendering the result as SVG circles inside a fixed 960x960 viewport. On each simulation tick, the `x` and `y` coordinates update the circle attributes, creating continuous positioning. The data is hardcoded in the JavaScript, and the visualization relies on D3 v6’s simulation API without additional user interaction or styling.