{"version":"1.0","type":"rich","title":"D3 js part 2","description":"A looping animation of circles moves vertically in a sine-wave pattern across an SVG canvas, with the number of circles oscillating between five and fifteen over time. The code uses D3 v7's `select`, `range`, and the data-join method `.join('circle')` to bind array data to SVG elements, updating their `cx` and `cy` attributes each frame via a `setInterval` callback. The visualization highlights D3's declarative enter-update-exit pattern for dynamic datasets.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/eb3c57db875a407bb4511320f5129c79?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}