{"version":"1.0","type":"rich","title":"Circles on a map with D3.js!","description":"This example displays global population estimates for 2018 as circles positioned on a natural Earth projection map using D3.js v5. Countries with missing data appear in red, while circles scale in radius according to population via `d3.scaleSqrt`. The visualization includes zoom functionality via `d3.zoom`, a size legend generated with custom tick formatting, and tooltips using SVG `<title>` elements. Geographic boundaries are rendered from TopoJSON data, while population statistics come from a CSV file of UN estimates, with `d3.geoPath` and `d3.geoCentroid` handling map geometry.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/affd278944c54e019ee2ed1f03d7550b?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}