{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This example visualizes the hierarchical structure of world countries, organized by continent and subregion, as an interactive tree diagram. The D3.js v5 code uses the `tree` layout and `hierarchy` to compute node positions, while `linkHorizontal` renders the connecting paths. Pan and zoom functionality is implemented via the `zoom` behavior, and the data is loaded from a local JSON file. SVG elements are used for rendering, with text labels sized based on their depth in the hierarchy.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/51042b13fe534fc3a73da1113983db9c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}