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Coronavirus Deaths by Country over Time (with Voronoi Hover)

✓ Published1🌍 Public
DDiavek
Last edited Mar 29, 2020
Created on Mar 29, 2020

A streamgraph-style line chart displays cumulative COVID-19 deaths by country over time, using data from the Johns Hopkins Coronavirus Dataset. A single line represents each country on a log-scaled y-axis. Hovering over any point activates a Voronoi overlay, built with `d3.Delaunay` and `d3.voronoi`, which highlights the nearest data point, illuminates the corresponding country’s entire line, and shows a tooltip with the country name, death total, and date. The visualization is rendered as SVG in React, with axes and scales from D3 v5.

AI-generated description

Line chart of Coronavirus cases to date, by country. Data from Johns Hopkins Coronavirus Dataset.

Hover to see details and illuminate lines.

MIT Licensed

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