{"version":"1.0","type":"rich","title":"Fork of Sized Points on a Map","description":"This visualization displays a world map with cities over 50,000 population represented by semi-transparent circles, whose radii encode population via a square-root scale. Country boundaries, graticules, and the sphere outline are drawn using `d3.geoNaturalEarth1` and `d3.geoPath` in SVG. React manages the component state, fetching city data from a CSV via `d3.csv` and country topology from the World Atlas TopoJSON using `d3.json` and `topojson.feature`. The squared-sized points highlight population distribution across the globe.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ec0482561e6d4a34a4b681f651fe0877?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}