{"version":"1.0","type":"rich","title":"graph","description":"This example presents a hierarchical tree diagram of global health data, organizing countries into disease categories and specific diseases beneath a “Global Health” root. The visualization uses an SVG-drawn tree layout, with colored nodes indicating depth: orange for countries, blue for disease categories, and green for individual diseases. The code builds the hierarchy with `d3.hierarchy()`, positions nodes using `d3.tree()`, and connects them with `d3.linkVertical()` paths. Labels appear above each circle, and the layout is calculated dynamically based on the 800×800 SVG dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/542cac8b8b6f4773af169f47961598d4?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}