{"version":"1.0","type":"rich","title":"World countries hierarchy","description":"This visualization displays the hierarchical structure of world countries, organized by continent and subregion. It uses a horizontal tree layout rendered as SVG, with connecting paths and country labels. The code employs `d3.hierarchy`, `d3.tree`, and `d3.linkHorizontal` to compute positions and draw links, while `d3.zoom` enables interactive panning and scaling. Text sizes decrease with depth, and the data comes from a JSON file.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/78f9e101647146c784dc1dc20435b68c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}