{"version":"1.0","type":"rich","title":"World countries tree","description":"This visualization displays the hierarchical structure of world countries, organized by continent and subregion, as an interactive tree diagram. Using D3.js v5 with a React framework, it renders SVG elements with the `tree` layout and `linkHorizontal` generator to create branching paths. The code loads hierarchical JSON data and supports pan-and-zoom interactions via `d3.zoom`, with text labels sized proportionally to depth within the hierarchy.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4929775b6779430a8a613976b7fc24c2?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}