World Countries Tree with D3.js!

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World Countries Tree with D3.js!

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Last edited Jul 16, 2020

Created on Jul 15, 2020

This visualization presents a hierarchical tree of world countries, organized by continent and sub-region based on a nested JSON data structure. The tree renders as an indented horizontal layout using SVG paths and text elements, with the D3.js library managing the layout calculations. The code leverages D3's `tree`, `hierarchy`, and `linkHorizontal` APIs to position nodes and draw connecting lines, while a zoom interaction via `d3.zoom` allows panning and scaling. The styling uses a custom serif font and white text shadows for readability.

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A bare minimum HTML page.

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