{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"This visualization displays a world map with cities whose population exceeds 50,000, using sized circles to represent population magnitude. The map includes country borders and graticules, styled with a clean, minimal aesthetic. Built with React and D3 v6, it uses `d3.geoPath` for map rendering, `d3.scaleSqrt` to size circles by population, and loads geographic data from World Atlas TopoJSON and city data from Simplemaps via `d3.csv` and `d3.json`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/0d8b59b805344b6fa86814a496e25eef?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}