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fork of Collapsible tree diagram in v4

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WWilliamNHarvey
Last edited Aug 9, 2018
Created on Aug 9, 2018

A collapsible tree diagram built with D3 v4 displays hierarchical data, starting with a top-level node and two child branches. Users click nodes to expand or collapse their children, with smooth animated transitions for nodes and links. The SVG visualization uses a tree layout, with nodes represented as circles and connecting paths, while labels show names like "Level 2: A" and "Son of A." The code applies a fixed-depth normalization, sets node positions via `d3.tree()`, and animates using `.transition()` with a 750-millisecond duration.

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