{"version":"1.0","type":"rich","title":"World Countries Tree","description":"This visualization displays the hierarchical structure of world countries, organized by continent and subregion using a horizontal tree layout. The code uses D3 v5’s `tree` layout and `hierarchy` function to compute node positions, with `linkHorizontal` generating curved paths for parent-child connections. Text labels are rendered with font sizes scaled by node depth, and a `zoom` interaction enables panning and scaling of the entire SVG canvas. The data comes from a local JSON file outlining geographic groupings.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ec60c407d787411dac2fe1931330c7b1?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}