{"version":"1.0","type":"rich","title":"world map with points","description":"This example visualizes global population distribution using a natural Earth projection, plotting cities as semi-transparent circles sized by population. The map renders SVG paths for land, graticules, and sphere outlines via `d3.geoPath`, while React hooks load world atlas TopoJSON and city CSV data, with `d3.scaleSqrt` mapping population to circle radii.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ed9bf975274049eab9463a1022d3dcf4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}