{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays the hierarchical structure of world countries, organized by continent and subregion. It uses a horizontal tree layout, with each country name rendered as a leaf node and connections drawn as curved links. The code employs D3 v5’s `tree()` layout, `hierarchy()`, and `linkHorizontal()` path generator to position nodes and draw edges in SVG. Data comes from a local `data.json` file containing the nested geographic grouping.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/02dba2499e9745beb73b8b2e885b5203?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}