{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"This visualization displays a world map with points sized by city population, using data from the Simplemaps World Cities Database for cities with over 50,000 residents. D3’s `geoNaturalEarth1` projection and `geoPath` render the sphere, graticules, and land boundaries from the World Atlas TopoJSON. A `scaleSqrt` maps population values to circle radii up to 15 pixels, while React composes the SVG elements. The semi-transparent teal circles overlay a light gray landmass, with country borders and graticules providing geographic context.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/89faa43647f342e5b625e61a9c294560?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}