{"version":"1.0","type":"rich","title":"Map with circles","description":"This visualization shows global population estimates for 2018 using a natural Earth projection, with circles sized proportionally to population overlaid on country boundaries. It renders in SVG with animation, combining a world map of countries from World Atlas topojson with UN population data. Using d3.geoNaturalEarth1, d3.geoPath, and d3.geoCentroid, it projects each country and draws scaled circles via d3.scaleSqrt, plus a size legend and zoom interaction via d3.zoom.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/fa08052b18f74e078554de52a6aeba61?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}