{"version":"1.0","type":"rich","title":"World Countries Tree Map","description":"This visualization shows the hierarchical structure of world countries organized by continent and subregion using a tree layout. The interactive chart displays country names as text labels positioned along curved horizontal links from the root node. Users can pan and zoom through the hierarchy using d3.zoom. The implementation uses d3.tree, d3.hierarchy, and d3.linkHorizontal to position nodes and generate paths, with Playfair Display font styling applied via text shadows.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/14e6055c0e4b489f8ecbcb9abb5d61da?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}