{"version":"1.0","type":"rich","title":"Multiple Line plot with Dropdown","description":"This interactive visualization displays a multiple line plot of air quality data, allowing users to compare trends across different pollutants via a dropdown menu. The chart plots daily values for each pollutant across time, with lines colored by category. Built with D3 v5, it uses `scaleTime`, `scaleLinear`, `nest`, and `line` to generate smooth curves, while a custom `dropdownMenu` component handles user selection. The data comes from the London Datastore, and the visualization updates dynamically with animated transitions on the SVG paths.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bdc334be520e4224a666a02cceffac12?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}