Sized Points on a Map

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Sized Points on a Map

✓ Published0🌍 Public

Last edited Jun 30, 2020

Created on Jun 30, 2020

A world map displays cities with populations over 50,000 as semitransparent circles, sized proportionally to their population using a square-root scale. The visualization uses React for the user interface and D3 v5’s `geoNaturalEarth1` projection with `geoPath` to render country boundaries, graticules, and a sphere backdrop. City data comes from Simplemaps, while country shapes come from World Atlas TopoJSON. Circles are positioned via the projection and sized using `scaleSqrt` from D3, with opacity set 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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