{"version":"1.0","type":"rich","title":"Circles on a Map","description":"A choropleth-style map of global population for 2020, where each country is positioned using the D3 `geoNaturalEarth1` projection and drawn with `d3.geoPath`. Circle markers, sized with a `d3.scaleSqrt` legend, indicate relative population per country, and users can pan and zoom via `d3.zoom`. The visualization also includes a color legend built with the `colorLegend` module and a size legend using `tickFormat`, with data loaded from a CSV and a TopoJSON world atlas.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/426d9d535f9a4bcab9cdf0600f046675?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}