A face is drawn on a Canvas using 2,000 points generated by a phyllotaxis algorithm, which are rendered as small circles. The visualization demonstrates interactive pan and zoom via `d3.zoom` and drag-to-move individual points with `d3.drag`, all applied directly to the canvas context. The code uses D3 v5’s `select`, `zoomIdentity`, and transform methods to update point positions during interactions, with a fixed radius of 2.5 for each point.