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Color and Size Legends

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Vvic126
Last edited Jun 29, 2020
Created on Jun 29, 2020

This example demonstrates two custom D3.js legends rendered as SVG within a React application. The color legend maps categorical fruit names to distinct colors using `scaleOrdinal`, while the size legend uses `scaleSqrt` to encode numeric tick values as circle radii. Both legends are constructed with D3's data join pattern (`selectAll`, `enter`, `merge`, `exit`), displaying circles and text labels. The color legend places swatches vertically, and the size legend scales circle areas according to the square-root scale, with tick generation via `sizeScale.ticks`.

AI-generated description

A bare minimum HTML page.

See also React Starter.

MIT Licensed

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