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World Countries Tree

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AArriannePandaraoan
Last edited Apr 23, 2020
Created on Apr 23, 2020

This visualization shows the hierarchical organization of world countries, grouped first by continent and then by subregion, with each country displayed as a leaf node. The tree layout positions nodes horizontally, and text size decreases with depth to emphasize the structure. Built with D3 v5, it uses `d3.tree`, `d3.hierarchy`, and `d3.linkHorizontal` to compute and draw the connections as SVG paths. Pan and zoom interactions are enabled via `d3.zoom`, and the data is loaded from a local JSON file structured with nested children arrays.

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