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Firefly Map of Coronavirus Case Locations

✓ Published0🌍 Public
Tthanhtrant219
Last edited Apr 12, 2020
Created on Apr 12, 2020

A dark map shows each location with confirmed coronavirus cases as of March 5, 2020, using a glow effect reminiscent of fireflies. The visualization plots all case locations, regardless of case count, using a shared sprite style. Built with React and OpenLayers, it loads a Stamen toner-lite basemap and creates a radial-gradient canvas sprite for each point via `generateSprite`. Data comes from the Johns Hopkins CSSE COVID-19 time-series repository, filtered to include only locations with positive counts.

AI-generated description

Firefly Cartography with OpenLayers and React.

Each point on the map is a location for which there was at least one confirmed Coronavirus case as of 3/5/2020. Each location is shown as the same size and intensity, regardless of how many cases there were (this is a shortcoming of this visualization).

Data from Johns Hopkins: CSSEGISandData/COVID-19;

MIT Licensed

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