{"version":"1.0","type":"rich","title":"Circles on a Map","description":"This visualization displays global population data on a natural Earth projection map. Countries with missing data appear in red, while the rest are gray, and semi-transparent circles sized by population are placed at country centroids. A custom legend shows the population scale. The code uses D3 v5 functions like `geoPath`, `geoCentroid`, `geoNaturalEarth1`, and `scaleSqrt`, along with a custom `sizeLegend` for the bubble chart. Data is loaded from a CSV file and a TopoJSON world atlas.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e0d9f24e2b6146b1b8ce3516d959d83a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}