{"version":"1.0","type":"rich","title":"D3v5 map example","description":"A world map rendered in SVG shows populated places as green circles sized by population. The visualization uses d3.geoEqualEarth projection with d3.geoPath to draw the landmasses from a GeoJSON world dataset, while city coordinates are projected from a second GeoJSON file of populated places. Circle radii initially reflect maximum population, then animate via a five-second transition to minimum population values. The example loads both datasets with Promise.all and d3.json, with all rendering handled through SVG elements.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-1bcde7452450c153d8a0684085f249fd?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}