{"version":"1.0","type":"rich","title":"Choropleth Map with Interactive Filtering","description":"A choropleth map displays global economic classifications by country, with a color legend that users can click to filter which regions remain fully visible. The map supports zooming and panning, while hovering reveals country names and values via tooltips. Built with D3 v5, it uses `d3.geoNaturalEarth1` for projection, `d3.geoPath` for rendering SVG paths, and `d3.zoom` for interaction. Data comes from TopoJSON world atlas files joined with TSV metadata, with `d3.scaleOrdinal` and `schemeSpectral` assigning colors.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2e2910397f0747cbb597a1c7cfadc3c1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}