Face with D3 js
This example uses D3.js to draw a simple, static face composed of SVG shapes, including a head, eyes, and mouth, within a 960x400 viewport. The code selects an existing SVG element and appends circles and paths using D3's data-binding and shape-generator APIs, such as `d3.arc` for the mouth. The visualization demonstrates basic SVG manipulation with D3 v5, though it does not include interactive or animated behavior.