{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"This choropleth map uses color-encoded economy classifications to visualize world countries from the World Atlas TopoJSON dataset. A spectral color scale is mapped to each country using D3’s `geoNaturalEarth1` projection and `geoPath`. Viewers can hover a legend item to filter the map, which dims non-matching countries with reduced opacity while highlighting the selected category. The example uses `d3.zoom` for panning and zooming, and the legend’s click handlers toggle the selection, updating both the map and legend transparency.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5d5eb80cfbc84e46adecbeb2069341fb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}