{"version":"1.0","type":"rich","title":"Points on a Map with Size","description":"A world map rendered with D3’s geoNaturalEarth1 projection and geoPath displays city populations as semi-transparent circles sized by a sqrt scale. The visualization uses React to manage state and fetch data from the Sense Your City dataset and a TopoJSON world atlas. Marks include the sphere, graticule, land polygons, and interior boundaries, with circle radii proportional to each city’s population.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d39bb31811754313908b8353f064ee29?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}