{"version":"1.0","type":"rich","title":"20 - choropleth map - dataviz 2018","description":"A choropleth map of the world colors each country according to its economic classification, with a color legend on the left. The map uses a natural Earth projection rendered with `d3.geoPath`, and country data comes from the `world-atlas` TopoJSON and TSV files. A sequential color scale based on `d3.scaleOrdinal` and `schemeSpectral` assigns hues, and hovering turns a country red via SVG CSS. The visualization is built with D3 v5 and the `topojson` library's `feature` function, with zoom capability via a custom `zoom` callback.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2208df26e8a449c2af0a7c44e8f3dc35?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}