Example of zoomable icicle

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Example of zoomable icicle

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Last edited Oct 4, 2022

Created on Oct 4, 2022

This zoomable icicle chart displays hierarchical data from the Flare-2 dataset, with rectangles colored by top-level category and sized by value. Users click any rectangle to zoom into that subtree, smoothly animating the layout’s scale and position. Built with D3 v7, it uses `d3.partition()` to compute the icicle layout, `d3.scaleOrdinal` with `interpolateRainbow` for colors, and `d3.json()` to load data. The SVG rendering uses transitions to animate rectangle heights, transforms, and label opacity, with tooltips showing the full ancestor path and formatted values.

AI-generated description

A port of Observable: Zoomable Icicle by Mike Bostock to vanilla JavaScript.

The content of this work is not original - I just ported it to vanilla JavaScript. That process includes:

Flattening the reactive data flow into a sequence of expressions,
uploading the dataset to a Gist: Flare-2 Dataset
renaming variables to avoid collisions with D3 imports (e.g. partition).
minor framing work such as removing margin and scrollbars on the body.

This port was done in response to this VizHub Forum Post: Zoomable Icicle in React.

ISC Licensed

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