{"version":"1.0","type":"rich","title":"Sophie's version: Aggregation by Country using Excel + Dropdowns!","description":"This interactive map visualizes aggregate course view counts by country using a Mercator projection rendered in SVG. Users filter the data by course category via a dropdown menu, which updates the circle sizes representing total views per nation. The visualization loads geographic boundaries from a TopoJSON world atlas and CSV data containing viewer locations and course enrollment metrics. Built with React, the example uses d3.geoPath for map rendering, d3.scaleSqrt for proportional circle sizing, and react-dropdown for the selection interface.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/1727c53f75954a02aa19b17f1feada72?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}