{"version":"1.0","type":"rich","title":"动画","description":"A D3.js animation demonstrates how bar charts update when data changes. Using SVG elements and the `fruitBowl` module, fruits are rendered as circles with ordinal color and radius scales, positioned via `attr(\"transform\")`. The example transitions through three stages: removing the last fruit, changing the third fruit’s type from apple to lemon, and filtering out the second fruit, using `setTimeout` calls. It shows the enter, update, and exit pattern with `selectAll` and `data` joins, though transitions are commented out. Data comes from a static CSV containing country populations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}