Family Tree
This visualization presents a family tree as an animated, zoomable node-link diagram. It reads hierarchical data from a JSON file and renders it as colored, clickable rectangles connected by labeled links, using D3.js v3 and React. The layout, computed via `d3.layout.tree`, supports interactive expansion and collapse of nodes, with tooltips and drag-to-pan functionality. The tree's size adjusts dynamically based on the data, and the code includes custom SVG definitions for arrows and drop shadows.