{"version":"1.0","type":"rich","title":"Covid-19","description":"This visualization shows the global spread of COVID-19 by plotting circular markers on a world map, with each circle sized proportionally to the total reported cases for a country on March 25, 2020. The map uses a geoMercator projection with d3.geoPath to render country boundaries from TopoJSON. COVID-19 data from a CSV file is loaded with d3.csv, and circle radii are scaled using d3.scaleSqrt. An interactive range slider is present, though its current implementation only displays static text.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2e28fad6139b46a0870aa050396618d6?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}