{"version":"1.0","type":"rich","title":"D3 course - World Map With Cities >50000","description":"This interactive world map displays all cities with populations exceeding 50,000, using circle size to encode population magnitude through a square-root scale. Built with React and D3 v7, the visualization renders SVG paths from TopoJSON world atlas data alongside city coordinates from a CSV dataset. The natural Earth projection draws graticules and styled landmasses, while hover tooltips reveal country, city name, and formatted population using d3.format.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/3889a7ee9f94496eaff964e92f27aec4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}