{"version":"1.0","type":"rich","title":"practice17-interactive filtering on a map","description":"This interactive map displays global economic classifications as a choropleth, with each country colored by its economy type. A legend of color swatches allows users to click a category and instantly filter the map, highlighting matching countries while dimming others, and clicking again clears the filter. Built with D3.js v5, the visualization uses `d3.geoNaturalEarth1` and `d3.geoPath` to render SVG paths from TopoJSON data, while `d3.scaleOrdinal` and `d3.schemeSpectral` define the color scale. Zooming via `d3.zoom` enables closer inspection of regions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/fbb4b83d93244bdc9aedcd31600994b2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}