{"version":"1.0","type":"rich","title":"Points on a Map","description":"This map visualization plots world city populations using circles projected onto a Natural Earth base. It uses D3 v5’s `geoNaturalEarth1` and `geoPath` to render landmasses, graticules, and country interiors, while a sqrt scale maps population values to circle radii. The React-based component loads city data from a CSV and renders SVG marks, using a world atlas TopoJSON for geographic context.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5b3d188c0d2a45acaa7568a331c11244?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}