{"version":"1.0","type":"rich","title":"Let's make a smiley face with D3.js","description":"A yellow smiley face is drawn in SVG using D3.js v5, with a circle for the head, two eyes, rectangular eyebrows, and an arc-based mouth generated with the `arc` helper. The eyebrows animate vertically via chained `transition().attr()` calls, moving down then returning over four seconds. The SVG dimensions are read directly from the markup, and the face is centered using a translated `<g>` group. The example demonstrates basic SVG shape creation and D3 transitions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0748676b942f407ea96fa17e0cb186dc?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}