{"version":"1.0","type":"rich","title":"Circles on the Map","description":"This visualization displays the global population distribution for 2018 using sized circles positioned over a natural Earth projection map. Each circle’s radius encodes population magnitude via a square-root scale, with a corresponding size legend and a categorical color legend for missing data. The code uses D3 v5’s `geoPath`, `geoNaturalEarth1`, `zoom`, and `scaleSqrt`, rendering SVG elements. Data comes from a CSV file merged with TopoJSON world atlas geometries, and interaction includes hover tooltips showing region names and formatted population values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/71ce8e94e6d7459a9ddbc364f23ed89d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}