Sized Points on a Map

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Sized Points on a Map

✓ Published0🌍 Public

Last edited Feb 18, 2020

Created on Feb 18, 2020

A world map displays cities with populations exceeding 50,000, with each city represented by a semi-transparent circle whose radius encodes population size via a square-root scale. The visualization uses React for rendering SVG elements, with d3’s geoNaturalEarth1 projection and geoPath to draw land boundaries, country interiors, graticules, and the sphere. City coordinates are projected from latitude and longitude, while data comes from a CSV sourced from Simplemaps’ World Cities Database, processed through d3.csv. Topology for country boundaries is loaded via d3.json from World Atlas TopoJSON.

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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