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Zzenoe
Last edited Oct 5, 2021
Created on Oct 4, 2021

A horizontal dendrogram visualizes the hierarchical structure of world countries, organized by continent and region. The tree layout is generated with `d3.tree` and rendered as an SVG using `d3.linkHorizontal`, with nodes labeled by country name. The chart supports zooming and panning via the `d3.zoom` event, which transforms the SVG group. Text labels are styled with a serif font and a white text-shadow for readability. The data is loaded from a JSON file containing the geographic hierarchy.

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