{"version":"1.0","type":"rich","title":"Fork of Circles on a Map","description":"This visualization displays global population by country using circles sized with a square-root scale, projected onto a natural Earth map with pan and zoom. Hovering reveals country names and population values, while missing data appears in red. Built with D3 v5, it uses `geoPath`, `scaleSqrt`, and `geoNaturalEarth1` for map generation, and a custom size legend for circle scaling. Population data comes from a UN CSV file, joined with TopoJSON country geometries.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b321ccefb35d4f9e90ce09c3302a55cd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}