{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays the hierarchical structure of world countries organized by continent and subregion, using a horizontal tree layout rendered as SVG. The code employs D3 v5's `tree()` and `hierarchy()` functions to compute node positions and draws curved links with `linkHorizontal()`. Static labels are placed at each node, and the data comes from a local `data.json` file containing the nested geographic classification.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/62082c782fa54da4bbba4a9799f08ac7?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}