{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"This choropleth map visualizes world economies by color-coding countries according to their economic classification. Users can click legend categories to filter the map, highlighting matching countries while dimming others; clicking again resets the filter. The map uses d3.geoNaturalEarth1 projection and d3.geoPath for rendering, while d3.scaleOrdinal with d3.schemeSpectral supplies the color scale. Data comes from the world-atlas dataset, loaded via d3.tsv and topojson.feature.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2955f1efe9574ee29a5f55300e6c1e7f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}