{"version":"1.0","type":"rich","title":"coviddata","description":"This choropleth maps cumulative COVID-19 cases by country, shading each nation with a red intensity proportional to its total case count. The visualization loads global case data from a cleaned CSV and aggregates it with `d3.rollup` and `d3.sum`, then renders geographic boundaries using `d3.geoMercator`, `d3.geoPath`, and a TopoJSON world topology. Hovering over a country reveals a tooltip displaying its name and total cases, while the SVG map updates fill colors via `d3.interpolateReds`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bc3ca53077414261b0309f861d425d4e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}