Fork of Sized Points on a Map

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Fork of Sized Points on a Map

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Last edited Apr 13, 2021

Created on Apr 13, 2021

This visualization displays a world map with circles sized proportionally to city populations, using a square root scale to encode population values. The map includes land masses, country borders, graticules, and a sphere outline, rendered with `geoNaturalEarth1` projection and `geoPath` from d3. City data comes from the Simplemaps World Cities Database, filtered to populations above 50,000. The React app loads TopoJSON world atlas data and CSV city data, then renders SVG circles with transparency over the geographic features.

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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