{"version":"1.0","type":"rich","title":"World Countries Hierarchy","description":"This example presents the hierarchical structure of world countries using a tree diagram. The visualization organizes countries by continent and sub-region, displaying the data from `data.json` as horizontally laid-out nodes connected by link paths. Rendered as an SVG, the code utilizes the d3 library's `hierarchy`, `tree`, and `linkHorizontal` APIs to compute the layout and draw the connections. Text labels, styled with a Roboto font, are positioned using the nodes' calculated coordinates, and a zoom interaction is enabled via the `zoom` API.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7a8200ee608249c39b922038480b5208?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}