{"version":"1.0","type":"rich","title":"Let's make a face with D3.js!","description":"This example demonstrates fundamental DOM manipulation with D3.js by building a smiley face whose eyebrows animate upward and downward. It uses D3 selections and the `arc` generator to construct the face’s circular head, eyes, rectangular eyebrows, and mouth as SVG elements. The eyebrows move via chained `transition().duration()` calls, shifting their group’s transform attribute over two seconds in each direction. The code explicitly leverages `select`, `attr`, and `append` from d3.v5, with no external data source, relying entirely on hardcoded geometric values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/17a120c99cb048c5833eaa6eb7989c10?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}