{"version":"1.0","type":"rich","title":"Circles on a map","description":"This example shows world population estimates for 2018, using circles sized by population on a natural Earth projection. Countries lacking data are colored pink, while those with data are gray and hover to teal. The visualization uses D3’s `geoPath` to render the map and `scaleSqrt` for circle radii, with a size legend built via D3’s `scaleOrdinal` and custom legend modules. Data is loaded from a CSV and a TopoJSON atlas, processed with `topojson.feature`, and rendered as SVG within a React starter.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6930df6f009649eb8f4e8aa357781112?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}