{"version":"1.0","type":"rich","title":"D3 Choropleth Map with Interactive Filtering","description":"This D3 choropleth map visualizes countries colored by their economy category, using a spectral color scale. Users can click legend items to filter the map, highlighting matching countries while dimming others. The map supports zooming and panning through the `d3.zoom` event. It uses `d3.geoPath` and the `geoNaturalEarth1` projection to render geographic features, and the `d3.scaleOrdinal` color scale with `d3.schemeSpectral` for encoding. Data is loaded from the World Atlas topojson and TSV files, processed with TopoJSON.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/300704e9ccd64619b977b494f74d1b91?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}