Fork of Sized Points on a Map

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Fork of Sized Points on a Map

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Last edited Nov 11, 2021

Created on Nov 11, 2021

This visualization displays global cities with populations over 50,000 as semi-transparent circles on a natural Earth projection map. Circle size encodes population using a square root scale, with the largest cities reaching 15 pixels in radius. The map renders country boundaries and graticules using d3.geoPath with TopoJSON data from the World Atlas, while city coordinates come from a Simplemaps CSV. Built with React and d3.v5, the SVG map overlays scaled circles onto the projected geographic features, filtered from the complete world cities dataset.

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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