{"version":"1.0","type":"rich","title":"Country Tree","description":"This visualization displays the hierarchical structure of world countries organized by continent and subregion, rendered as a horizontal tree layout using D3.js. The tree branches show the geographic grouping from World through Asia down to individual nations. The visualization uses D3's `tree`, `hierarchy`, and `linkHorizontal` functions to compute and draw the layout with SVG paths and text elements. Interactive zooming is enabled via D3's `zoom` event, and node labels are sized proportionally to their depth in the hierarchy.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f951ce0f9b584acdb572cb1403d8e3e5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}