{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization presents the hierarchical structure of world countries, organized by continent and subregion, as an interactive tree diagram. It uses D3.js (v5) to process the JSON data with the `d3.hierarchy` and `d3.tree` layouts, rendering horizontal links via `d3.linkHorizontal` and text labels in SVG. The chart employs the `d3.zoom` API for panning and zooming, with node text sized inversely to depth.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/07d97f1a9b4e4f8d96fd7315ce8f041a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}