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D3 v5 Zoomable Sunburst

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OOleg Russkin
Last edited Aug 15, 2019
Created on Aug 15, 2019

This interactive visualization displays the hierarchical structure of the Flare data as a sunburst diagram, partitioned into concentric rings where each ring represents a level of the hierarchy and arc angles encode numeric values. Clicking a segment zooms the view to focus on that subtree, using animated transitions that smoothly rescale and reposition arcs via `d3.interpolate` and `d3.attrTween`, with colors assigned by `d3.scaleOrdinal` and `d3.interpolateRainbow`. Rendered as SVG with D3 v5, it loads hierarchical JSON data and relies on the Observable stdlib’s `d3.partition` and `d3.arc` generators, adapting Bostock’s original example for vanilla JavaScript.

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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