{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization shows the hierarchical structure of world countries, organized by continent and subregion, as a horizontal tree layout. The code uses D3 v5’s `tree` and `hierarchy` functions to position nodes and `linkHorizontal` to draw connecting paths in SVG. Text labels display country names at varying font sizes based on depth, and the entire view supports zooming via d3.zoom. The data comes from a local JSON file listing regions and their member nations.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/372a70fdad5f45e6aef5988adef52c41?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}