{"version":"1.0","type":"rich","title":"Population Circles on US Map with D3.js!","description":"This interactive map of the United States visualizes county-level population data as circles. It uses the D3.js library (v5) to render an SVG graphic, employing `d3.geoPath` and a map projection sourced from a TopoJSON file. County centroids are calculated with `d3.geoCentroid` to position each circle. The visualization reads population figures from a local CSV file, and includes a zoom feature via `d3.zoom` for user interaction.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/21c6f710c396450d9d840c6843470a7c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}