{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"This example visualizes global population distribution by rendering cities with over 50,000 inhabitants as semi-transparent circles, sized with a square-root scale to reduce visual disparity. The map uses an equal-area natural Earth projection with graticules and political interiors drawn from the World Atlas TopoJSON. The React app uses `d3.geoPath` for geographic features and `d3.scaleSqrt` for proportional sizing, with city data sourced from the Simplemaps World Cities Database.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}