{"version":"1.0","type":"rich","title":"Family Tree","description":"A family tree visualization displays blood group types in a hierarchical layout, with circles representing each group and subgroup generation. Using D3.js v6, the code employs `d3.stratify()` to convert flat data into a hierarchy and `d3.tree()` to compute node positions. SVG elements render the circles, text labels, and animated paths that transition from collapsed to expanded states via `transition().duration()`. The root node appears dark red, with lighter shades for subsequent generations, all centered on the page.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/732819b8841643058bacfc72241551c5?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}