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Pie chart in React & D3 - donations data

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BbeauMarko
Last edited Feb 12, 2021
Created on Feb 12, 2021

This example shows a donut chart of donation distribution across five categories—Health, Support, Education, Poverty reduction, and Other—with each slice labeled by its percentage. The visualization is built with React functional components and D3 v6, using `d3.pie()` to compute arc angles and `d3.arc()` to generate SVG path geometry. Slice colors derive from a categorical interpolation via `d3.interpolateRgb`, linking the data’s category order to a warm-to-cool gradient. The chart renders as SVG, with the React state and component structure managing the mapping from data to visual elements.

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