{"version":"1.0","type":"rich","title":"Fork of World maping with cities","description":"This interactive map displays world cities with circle sizes proportional to population, overlaid on a geographic projection of Earth. It renders country landmasses, graticules, and interior borders using `d3.geoPath` with `geoNaturalEarth1` projection, while city positions are projected from latitude/longitude coordinates. Population values drive a square-root scale to determine circle radii. The visualization uses React hooks to load TopoJSON world atlas data and CSV city data, with d3.v5 handling geographic calculations and SVG rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9531a37cd3ed415089ee5732e48b8ac9?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}