{"version":"1.0","type":"rich","title":"D3 Course Code Along - World Countries Tree","description":"This visualization displays a hierarchical tree of world countries, organized by continent and subregion, using a horizontal node-link layout. The D3 v5 code loads hierarchical JSON data and applies the `tree` and `hierarchy` functions to compute the layout, then renders the connections as SVG paths using `linkHorizontal`. The chart fills the browser window and uses a teal color for the links, with basic interactivity implied through CSS hover states on country nodes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e17b876e61f24a749b5ad04ffb2799ef?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}