{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization shows the hierarchical structure of world countries, organized by continent and subregion, using a tree layout in SVG. The root node is \"World,\" with branches for each continent and further subdivisions down to individual countries. The code uses D3 v5’s `tree`, `hierarchy`, and `linkHorizontal` to compute the layout and draw curved links, with zooming enabled via `d3.zoom`. Text labels are positioned per node, with font size decreasing by depth, and the data is loaded from `data.json` using `d3.json`.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a2cdd6f722ec4e2b8b626eb44fb7a816?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}