{"version":"1.0","type":"rich","title":"Smiley with D3.js","description":"Built with D3.js v3, this animated SVG example constructs a cheerful smiley face from basic geometric primitives. The code uses D3 selections and method chaining to append a yellow circle for the head, two eyes, rectangular eyebrows, and an arc-generated mouth. A 2-second transition animates the eyebrow group’s vertical position, creating a subtle winking effect. The example also includes an unused Heatmap class definition, though the visualization itself focuses solely on the SVG composition.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d792684cd144473eb3bb9f7be04fa409?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}