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Corona Virus Deaths Over Time By Country With Voronoi Overlay

✓ Published1🌍 Public
KKazushige Okuma
Last edited Nov 2, 2021
Created on Nov 1, 2021

This visualization displays global cumulative COVID-19 death totals over time for each country, using a logarithmic y-axis to accommodate wide value ranges. A Voronoi overlay, generated with `d3.Delaunay` from the d3-delaunay package, enables smooth hover interaction to highlight any country’s trajectory, even when lines overlap. The React-based chart, built with D3 v5, renders SVG paths for each country’s timeseries, with the active country’s line emphasized in black. Data comes from the CSSEGISandData COVID-19 time series CSV, parsed via `d3.csv` and `timeParse`. Axes and gridlines are drawn using `axisBottom` and `axisLeft`.

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