{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This example shows the hierarchical structure of world countries arranged as a tree diagram, with each country nested under its region and subregion. The visualization uses D3.js v5’s `tree` layout and `hierarchy` function to compute node positions, while `linkHorizontal` generates the curved connector paths between parent and child nodes. The data is loaded asynchronously from a local JSON file via `d3.json`, and the final SVG is sized to fill the browser viewport, rendering all nodes and links without interactive features.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/6a0dd0e3ec8b4ec8929d5bddea7d15a0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}