{"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 with SVG. The code employs D3 v5’s `tree`, `hierarchy`, and `linkHorizontal` functions to compute node positions and draw curved links, while text labels are sized dynamically based on node depth. Pan and zoom interactions are enabled through D3’s `zoom` behavior, and the data comes from a local JSON file containing nested country names.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e1e4df2a9577463680365c44d8e73580?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}