{"version":"1.0","type":"rich","title":"Cheap Tricks for Interaction","description":"A world choropleth uses color to encode each country's income economy, with a linked ordinal legend. Clicking a legend category filters the map's visual emphasis, dimming unselected countries and allowing a click again to clear the filter. Built with D3 v5, it combines `d3.geoPath` and `geoNaturalEarth1` projection for geographic shape rendering, `scaleOrdinal` and `schemeSpectral` for the color scale, and `d3.zoom` for pan and zoom. Data comes from the World Atlas TopoJSON and TSV datasets.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a43d7d25f3a5431593634e89102e5948?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}