Building a Tree Visualization

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Building a Tree Visualization

✓ Published0🌍 Public

Last edited Jan 13, 2021

Created on Jan 13, 2021

This visualization displays a hierarchical tree of world regions and countries, branching from a central root through continents and subregions to individual nations. The layout uses a left-to-right tree structure with horizontal connector lines, rendered as SVG paths. The code builds the hierarchy with `d3.hierarchy`, computes positions with `d3.tree`, and draws curved links using `linkHorizontal`. Text labels are positioned at each node with font sizes decreasing by depth, and a `d3.zoom` handler enables panning and scaling of the entire diagram. The data comes from the embedded `data.json` file.

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