{"version":"1.0","type":"rich","title":"D3 Selection Exercise","description":"This animated visualization demonstrates D3’s data-join and selection pattern by continuously updating a set of circles and connecting lines in an SVG scene. The code uses `selectAll` and `.join()` within `drawCircles` and `drawLines` to bind and update elements based on procedurally generated data from `makeCircleData` and `makeLineData`. Circle positions, radii, and colors oscillate with a time counter `t`, while lines link adjacent circles and inherit their stroke colors. Running at 60fps via `setInterval`, the example highlights how D3 v7’s `range`, `select`, and join methods handle dynamic, frame-by-frame updates in a React context.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b6ea9bf6b4e942c196888c2de7eff584?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}