{"version":"1.0","type":"rich","title":"25 - circles on a map - dataviz 2018","description":"A world map displays population data from the UN World Population Data, with circles sized by population using a square root scale. Countries are colored green or red to indicate whether 2018 population data exists, with missing data shown in red. The visualization uses D3 v5's `geoNaturalEarth1` projection, `geoPath`, and `geoCentroid` to position circles on the map, along with `scaleSqrt` for sizing and zoom functionality. TopoJSON from world-atlas provides country boundaries, while a custom size legend shows population values.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6703b8296d5d4413aaebac003782a33d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}