{"version":"1.0","type":"rich","title":"World Map with COVID-19 Data","description":"This visualization presents a choropleth world map color-coded by total COVID-19 cases, with proportional pie charts overlaid on each country to break down cases versus deaths. Built with React and D3 v6, it uses `d3.geoMercator` for projection, `d3.geoPath` to render country boundaries from GeoJSON, and `d3.scaleQuantize` for the color gradient. Hovering a country reveals a tooltip with its name, while each pie chart is generated with `d3.arc` and `d3.pie` with radii scaled by `d3.scaleSqrt`. Data comes from the Our World in Data COVID-19 dataset.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5bc0d60f694e4685a159ed37876b6c55?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}