{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This example visualizes the hierarchical structure of world countries, grouped by continent and subregion, as a tree diagram. The layout uses d3.tree and d3.hierarchy to compute node positions, while d3.linkHorizontal generates the curved paths connecting parent and child nodes. The data is loaded from a JSON file and rendered as SVG paths on the full viewport.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/558ee4fc4ae844ed923c088a502a56ca?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}