Fork of Sized Points on a Map

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Fork of Sized Points on a Map

✓ Published1🌍 Public

Last edited Jul 16, 2021

Created on Jul 15, 2021

This example displays a natural Earth projection world map with semi-transparent red circles sized by total COVID-19 cases for cities with populations above 50,000. The visualization uses React with D3 v5, leveraging `geoNaturalEarth1` and `geoPath` for map rendering, `scaleSqrt` for proportional circle sizing, and `topojson` for country boundaries. Country data is enriched with COVID statistics from a CSV file, while tooltips reveal exact case counts. The map includes graticules and country borders styled through CSS.

AI-generated description

A world map showing cities with population greater than 50,000. City data from Simplemaps: World Cities Database.

Country boundaries from World Atlas TopoJSON, polished for visual style, including graticules.

MIT Licensed

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