{"version":"1.0","type":"rich","title":"Hierarchy examples","description":"This radial tree visualization displays a hierarchical view of world countries, organized by continent and subregion. It features panning and zooming interactions for exploring the nested structure. The code uses D3 v4’s `tree()` layout to compute node positions, `linkHorizontal()` for curved paths, and `zoom()` for interactive navigation. Data comes from a JSON file containing country groupings, rendered with SVG elements such as paths and text labels.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8e4c6f7efbcc4dbfbf3f980335c1f23d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}