{"version":"1.0","type":"rich","title":"Circles on a Map","description":"This map visualizes population by country using circles sized with a square-root scale, where the area of each circle is proportional to a country's population. Users can pan and zoom the map, and hovering over a country reveals its name and population, while countries with missing data are colored differently. The visualization is built with D3 v5 and uses the `geoNaturalEarth1` projection, `geoPath` for rendering country shapes, and `scaleSqrt` for the circle sizes. Data comes from a CSV file and a TopoJSON world atlas, processed using the `topojson` library.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9ec2fa63e050424ba15d6454d7acf7cd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}