{"version":"1.0","type":"rich","title":"World Map with Cities with React & D3","description":"This map visualization displays major world cities as circles sized by population on an equal-Earth projection of the globe. Using React hooks, it loads geographic data via `useWorldAtlas` (from TopoJSON) and city data via `useCities` (from a CSV). The `Marks` component renders the sphere, graticules, land outlines, and interiors using `d3.geoPath` and `d3.geoGraticule`, while city circles are positioned by projecting coordinates and scaled with `d3.scaleSqrt`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/87b36ec66b094256933ec9ef9fe632da?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}