{"version":"1.0","type":"rich","title":"Circles on a Map","description":"A time-series slider animates the spread of COVID-19 cases across a world map. Red circles, sized with `d3.scaleSqrt` according to confirmed case counts for each date, are positioned using the `d3.geoNaturalEarth1` projection. The visualization uses a slider built with `d3.drag` to scrub through dates, updating circle radii and tooltips. Country boundaries and hover states are rendered with `d3.geoPath`, with data loaded from a CSV of confirmed cases.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/b958503272df4a4bad917346f3688efb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}