{"version":"1.0","type":"rich","title":"Fork of Family Tree","description":"This visualization presents a branching tree of blood group categories, from the top-level \"BloodGroup\" node down to specific types like A+ve and O−ve. It shows the hierarchical structure of blood types and their subsets. The code uses D3.js v6 with the `d3.stratify()` and `d3.tree()` APIs to compute the tree layout from an array of `{child, parent}` pairs. Nodes are rendered as SVG circles with animated transitions that grow in radius, while connecting paths animate from parent to child positions. Colors change by depth level, using a custom `setGeneration` function.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/f075ac413771485baa458bc686cc1081?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}