{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"A world map displays cities as semi-transparent teal circles sized by population using a square-root scale. The map includes land areas, country borders, graticules, and a natural Earth projection. Built with React and D3 v5, it projects geographic coordinates using `geoNaturalEarth1` and `geoPath`, draws features from World Atlas TopoJSON, and loads city data from a CSV file. Circle radii are mapped from population values via `scaleSqrt`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1d4e6351cd9c42089101b015b3c2b550?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}