{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This example shows a hierarchical tree of world countries using a horizontal node-link layout. The visualization maps the nested structure of the data to a tree, with text labels sized according to depth level. The code uses D3 v5’s `tree`, `hierarchy`, and `linkHorizontal` to position nodes and draw curved links, while a zoom behavior lets viewers pan and scale the entire SVG. Data is loaded via `d3.json` from a local `data.json` file, with text styled using the Playfair Display font and paths stroked in green.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/bf92b4d43bb14b58b489bb54fcd9520d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}