{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"A world map displays cities with populations over 50,000, using circles sized by a square-root scale to represent population magnitude. The visualization employs a Natural Earth projection with graticules and country boundaries, rendered as SVG paths. City data comes from the Simplemaps World Cities Database, loaded via `d3.csv`, while country boundaries use TopoJSON from the World Atlas. The React app uses `d3.geoPath` for map geometry and `scaleSqrt` for circle radii, with semi-transparent teal circles overlaid on a light gray landmass.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/731230af67e9431bbf7fc1a579b4cbf9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}