{"version":"1.0","type":"rich","title":"coronavirus countries Map","description":"A world map visualization shows the geographic distribution of COVID-19 cases, allowing users to toggle between confirmed cases, deaths, and recoveries via a dropdown menu. Country boundaries are rendered with d3.geoPath, while proportional circles sized with d3.scaleSqrt mark outbreak severity at each nation’s centroid. Data from a CSV file is joined to TopoJSON country geometries using a country code key. The map supports zooming and panning via d3.zoom, and includes custom color and size legend components built with D3’s selection and scale APIs.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c240e2efeb894bb4b0f23f2235b15d9f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}