{"version":"1.0","type":"rich","title":"D3 viz of world countries","description":"This radial tree displays the hierarchical structure of world countries using data.json, organized by regions and sub-regions. The visualization uses D3 v5’s `tree()` layout to position nodes, with `linkHorizontal()` drawing curved connection paths. Text labels show each country or region name, with font size decreasing based on depth. The SVG canvas supports zooming through D3’s `zoom()` event handler.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4319ea47ed3a4ffda5da4ee045e75486?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}