This radial tree visualization displays the Arastu family hierarchy, with each person’s name positioned along concentric rings according to their generational depth. The SVG elements fade in sequentially, creating a cascading reveal of the family structure. The code uses D3 v5’s `d3.tree`, `d3.hierarchy`, and `linkRadial` to compute the layout, while `transition.attrTween` animates a continuous 360-degree rotation of the entire tree. User interaction is supported via `d3.zoom` and `d3.drag`, allowing both pan and zoom control over the rendered paths and text labels.