{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents a hierarchical tree of world countries, organized by continent and subregion, using a left-to-right node-link diagram. The d3.js library builds the tree layout, positions nodes with `tree()` and `hierarchy()`, and draws curved link paths via `linkHorizontal()`. Node labels are placed at varying font sizes based on their depth. The data is loaded from a local `data.json` file and rendered as an SVG, with zoom functionality enabled through a d3 zoom event handler.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/5ab81fbd47e848589d72314719591d82?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}