{"version":"1.0","type":"rich","title":"Let's make a face with D3.js!","description":"A smiley face built with D3.js shows its eyebrows bobbing up and down in a continuous two-second animation loop. The code constructs the face from SVG shapes—a yellow circle, two eye circles, rectangular eyebrows, and an arc-based mouth—using d3-selection to append elements and d3-transition to animate the eyebrow group’s transform attribute. Eyebrows move via chained transitions with an `on(\"end\")` callback that restarts the animation indefinitely. D3 v5 is loaded from a CDN, and all geometry is positioned relative to the SVG’s center.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9ef8773560684612ad3f958b8c169c8e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}