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D3 v5 Zoomable Sunburst

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JJamie919
Last edited Jun 22, 2020
Created on Jun 22, 2020

This zoomable sunburst visualizes the structure of a hierarchical dataset, using nested arcs to represent the flare data from Observable’s `@observablehq/flare` library. Each level of the hierarchy is depicted as a ring, with arc segments sized proportionally to the data values. Clicking on a segment triggers an animated transition using `transition.attrTween` and `d3.interpolate` to smoothly re-center the view on that node, showing its children in greater detail. The visualization is rendered with SVG inside a circular partition layout, and the code uses `d3.hierarchy`, `d3.partition`, and `d3.scaleOrdinal` with the `interpolateRainbow` color scheme to distinguish top-level categories.

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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