{"version":"1.0","type":"rich","title":"Major U.S. Airports based on Departure Delay grouped by time of day(includes Pan & Zoom, Hover highlighting of state, Tooltips & Brushing with React Performance Optimization)","description":"This example combines a U.S. map with a histogram to visualize major airport departure delays grouped by time of day. The map uses `d3.geoAlbersUsa` and `d3.geoPath` to render state boundaries with circles scaled by `d3.scaleSqrt` representing delay magnitude, while the histogram bins flights by `SCHEDULED_DEPARTURE` using `d3.histogram`. Pan and zoom via `d3.zoom`, hover state highlighting, tooltips, and brush filtering are implemented, optimized with React `useMemo` and a custom `ZoomContainer` that wraps SVG transforms. Data comes from a CSV of flight delays and the US Atlas TopoJSON.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b59ba91c32574ba0ba030de6a07f15ea?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}