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Sized Points on a Map

✓ Published0🌍 Public
Fftjyangf
Last edited May 25, 2020
Created on May 25, 2020

This example displays a world map with city points sized by population. It uses a Natural Earth projection via D3's `geoNaturalEarth1` and `geoPath` to render landmasses, graticules, and country interiors. The map’s cities, sourced from a Simplemaps database, are drawn as SVG circles with radii scaled by the square root of population using D3’s `scaleSqrt`. The visualization is built with React and D3, with styles for the land, sphere, and graticules defined in CSS, and data loaded asynchronously from external files.

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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