{"version":"1.0","type":"rich","title":"Pie Chart for USA Flights On-time Performance","description":"A pie chart visualizes USA flight on-time performance by mapping each month to a slice, with the radial extent of each slice sized by the average departure delay. The chart uses a donut layout with an inner radius, rendering data loaded from a CSV file via `d3.csv`. Built with React and D3 v5, it employs the `d3.arc` generator to create SVG paths, with each slice’s outer radius scaled by the delay value. The visualization highlights monthly delay patterns in a simple, interactive-free format.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f4af912a2f6c496cb7fabaf6c1687b35?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}