{"version":"1.0","type":"rich","title":"World map cities & countries population","description":"This visualization presents a global map depicting both country-level population and major city populations. It uses a natural Earth projection, which can be rotated through a spin parameter. Country population density is encoded through fill opacity, while city population determines circle size using a square root scale. The map renders SVG elements via React, using d3-geoPath for geographic features, d3-geo-projection for the projection, and TopoJSON loaded from world-atlas. Hovering reveals country names and formatted population values, with cities also displaying their populations. Data comes from CSV sources for cities and country populations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/242e6ac1e0174c9bb68c3fd39df703af?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}