{"version":"1.0","type":"rich","title":"Fork of  World Countries Tree","description":"This visualization shows a hierarchical tree of world countries, organized by continent and subregion, with each country displayed as a text label. The tree layout from D3 v5 arranges nodes vertically, and a zoom behavior allows users to pan and scale the SVG view. The code uses `d3.hierarchy`, `tree().size()`, `linkHorizontal()`, and `d3.zoom()`, while the data comes from a local `data.json` file with a nested structure. Label font size decreases with depth, and curved links are drawn between parent and child nodes.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/d989fd71bff94eaeb519a4fc7c0eebb0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}