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D3 v5 Zoomable Sunburst

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JJ. Matthew Pryor
Last edited Aug 22, 2020
Created on Aug 22, 2020

This zoomable sunburst diagram visualizes the hierarchical structure of the Flare dataset, with nested arcs representing categories and subcategories. Clicking a node smoothly zooms and re-centers the view on that segment, while fading out irrelevant arcs and labels. Built with D3 v5, it uses `d3.partition`, `d3.hierarchy`, and `d3.arc` to compute the layout, and `transition.attrTween` for animated interpolation between states. Data loads via the Observable standard library, with SVG rendering and a rainbow color scale for top-level branches.

AI-generated description

Mike Bostock's D3 Zoomable Sunburst example

<br></br> Ported from this Observable notebook for this forum thread. Many thanks to Bryan Gingechen who answered my question about the necessary steps to get from an (Observable) JavaScript notebook to a vanilla JavaScript index.html. He presented his solution on blockbuilder.org

MIT Licensed

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