{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This interactive visualization displays the hierarchical structure of world countries organized by continent and subregion. Using D3.js v5, it renders a horizontal tree diagram in SVG with collapsible nodes, where circles represent countries and links show parent-child relationships. The code employs `d3.tree()` for layout computation and `d3.linkHorizontal()` for path generation, with data loaded from a JSON file containing geographic classifications.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/12ddb81666b74d9bb7e7fd5489cf8440?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}