{"version":"1.0","type":"rich","title":"Rough of 3. Sized Points of Populated Cities on a Map","description":"This visualization shows populated cities (population over 50,000) as sized points on a world map, using the natural Earth projection. City positions are projected from latitude and longitude, with circle radius scaled by the square root of population. The map displays graticules, landmasses, and country interior boundaries. It uses D3 v5's `geoNaturalEarth1`, `geoPath`, and `geoGraticule` for map rendering, React for the component structure, and SVG for drawing. City data comes from the Simplemaps World Cities Database, while country boundaries use the World Atlas TopoJSON.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/533c6451f7184a3a9389258621e2c7db?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}