This example shows a simple cartoon smiley face built with SVG shapes, including a yellow circle for the head, two black circles for eyes, and a curved arc for the mouth. The face is centered using a D3.js arc generator with specified inner and outer radii and angular start and end points. The visualization is rendered in React, with each element positioned via SVG attributes and a group transform. It demonstrates combining React components with D3’s arc API to produce static, geometric graphics.