{"version":"1.0","type":"rich","title":"Map","description":"This map visualizes global population data from a CSV file (accessed via `d3.csv`), with each country’s population represented by a semi-transparent circle overlaid on a geographic projection. The circles’ areas are scaled using `d3.scaleSqrt`, and the map is rendered with `d3.geoPath` and `d3.geoNaturalEarth1` on an SVG. Users can pan and zoom via `d3.zoom`, and hovering over a country reveals a tooltip with its regional name and population. A size legend, built with custom `sizeLegend.js`, and a color legend (`colorLegend.js`) accompany the visualization. Interactive encoding uses the `join` pattern to update SVG elements.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6e0b1f22e7574d47a2fdc8dfbf62c38e?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}