{"version":"1.0","type":"rich","title":"points on map","description":"A world map scatter plot displays the population of cities as semi-transparent circular points, sized by a square-root scale so larger cities appear with proportionally larger radii. The visualization uses an equal-earth projection with graticules and country boundaries, rendered via D3’s `geoPath` and `geoGraticule` in SVG. City data comes from a CSV of world cities, with sphere and country shapes drawn from a TopoJSON world atlas. React manages the interface, while D3’s `scaleSqrt` maps population values to visual radius.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/45352f101d6342dcbe85756bffe397d4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}