{"version":"1.0","type":"rich","title":"Sized Points on a Map","description":"A world map displays cities with populations over 50,000, where the area of each teal point is proportional to city population via a square-root scale. The map includes landmasses, country boundaries, and graticules, all rendered as SVG paths using `d3.geoNaturalEarth1` and `d3.geoPath`. City data comes from the Simplemaps World Cities Database, loaded with `d3.csv` in React. Point sizes are computed with `d3.scaleSqrt`, with circles rendered at projected coordinates from `d3.geoPath`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d81ecd88b3ad48489ebe56fb7de93b2b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}