{"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 collapsible tree layout rendered as SVG. The code employs D3 v5’s `tree`, `hierarchy`, and `linkHorizontal` generators to compute node positions and draw curved links, while `zoom` enables panning and scaling. Text labels vary in font size by depth, and the data comes from a local `data.json` file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/c2606cdee26d47fda13c8220bfa2b93a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}