{"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 a horizontal tree diagram rendered as SVG. It uses a D3.js v5 tree layout to position nodes and links, with the `d3.hierarchy` and `d3.linkHorizontal` modules generating the tree paths. The data is loaded from `data.json`, and the visualization supports mouse-wheel zooming via d3's zoom transform, applying it to a group element. Text labels show country names with a font size that decreases with tree depth.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7fb8ab5ff98b490a9cd54bfa2f751ec1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}