{"version":"1.0","type":"rich","title":"d3 choropleth (world) map","description":"This choropleth map visualizes average GDP per capita by country from 1970 to 2017, with each nation shaded on a logarithmic green color scale based on its value. Hovering over a country dims all others, highlights the selected region, and reveals a tooltip with the country’s name and GDP. Built with D3 v6, it uses `d3.geoMercator` and `d3.geoPath` to project and draw the map from a simplified GeoJSON, while the data from a CSV is joined to the topology for coloring. Animated transitions control opacity and tooltip visibility.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/9767f4d4d2ba4853859de4575e1be5f5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}