{"version":"1.0","type":"rich","title":"Chloropleth using gistup","description":"This choropleth encodes unemployment rates from 2008 for U.S. counties, using d3’s quantize scale to map rates from 0 to 15% to a nine-step blue color ramp. County boundaries are rendered as SVG paths from TopoJSON, with state outlines stroked in white, and unemployment data loaded from a TSV file into a d3.map keyed by FIPS ID. The map uses an AlbersUSA projection and a threshold-free quantize scale for coloring, making it easy to see regional unemployment patterns.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-50681be74753f988c4ab?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}