{"version":"1.0","type":"rich","title":"Fork of Sized Points on a Map","description":"This example displays a natural Earth projection world map with semi-transparent red circles sized by total COVID-19 cases for cities with populations above 50,000. The visualization uses React with D3 v5, leveraging `geoNaturalEarth1` and `geoPath` for map rendering, `scaleSqrt` for proportional circle sizing, and `topojson` for country boundaries. Country data is enriched with COVID statistics from a CSV file, while tooltips reveal exact case counts. The map includes graticules and country borders styled through CSS.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d56bdcb60a414a57bb49edce93b078c7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}