{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents the hierarchical structure of world countries, organized by continent and subregion, as a radial tree layout rendered in SVG. The data, drawn from a nested JSON file containing geographic groupings, is displayed with curved links connecting parent and child nodes. The implementation uses D3.js v5, employing the `d3.hierarchy` and `d3.tree` layout functions to compute node positions. Text labels are styled with the Playfair Display font, and the visualization’s layout is responsive to the viewport dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8dea43c0253d4922a0fee2f242c72379?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}