{"version":"1.0","type":"rich","title":"群像","description":"A radial chart visualizes on-time performance for the five busiest US airports across the year, with each airport drawn as a distinct colored closed curve. Angular position encodes date while radius represents average departure delay in minutes. Hovering over the interactive color legend highlights the corresponding airport’s loop and fades the others. Built with React and D3 v5, it uses `d3.scaleTime`, `d3.scaleLinear`, `d3.scaleOrdinal`, `d3.nest`, `d3.pointRadial`, and `d3.curveLinearClosed` to render SVG paths from CSV data on flight delays.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f174035234494d2a99377b80dd3dd537?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}