{"version":"1.0","type":"rich","title":"MAP - CIRCLES","description":"This visualization displays the global spread of a virus through a natural Earth projection map, with circles sized by population at each country's centroid. The D3.js code uses `d3.geoPath` and `d3.geoNaturalEarth1` for the map projection, `d3.scaleSqrt` for circle sizing, and loads data from two CSV files to plot origin-destination arcs. The map also includes a population legend generated with `d3.format` and custom zoom functionality via `d3.zoom`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/db65903c3b034f8a94c3acbaefc56a35?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}