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World Countries Tree

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Ccheeson
Last edited Aug 9, 2020
Created on Aug 9, 2020
Forked from Blank Canvas

This example presents a hierarchical tree of world countries, organized by continent and region, using a horizontal layout with curved links. It visualizes geographic groupings from a local `data.json` file, with depth-based font sizing for region names versus country names. The implementation leverages D3 v5’s `tree()` layout, `hierarchy()`, and `linkHorizontal()` path generator, rendering as SVG. Pan and zoom interactions are enabled via `d3.zoom()`, while text styling uses CSS text-shadow for legibility.

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