{"version":"1.0","type":"rich","title":"world population distribution","description":"This choropleth map displays world population distribution across countries, with a dropdown menu to switch between years (1980–2030) and a tooltip revealing each country’s exact population on hover. It uses `d3.csv` and `d3.json` to load population data and GeoJSON topology, then renders paths via `d3.geoPath` with a Mercator projection. A threshold `colorScale` maps population ranges to blues, while a sidebar table lists the top ten most populous countries, updated dynamically through `updateTopCountries()` whenever the selected year changes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a5423f9a5792434684ce23b7b1154d91?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}