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767f307c0bff49769a4e9c7b0e3d99eb
Sized Points on a Map
A world map displays cities with populations over 50,000 as semi-transparent red circles, with circle size scaled by population using a square-root scale. The map uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`, rendering landmasses, country interiors, and graticules from World Atlas TopoJSON data. City coordinates and populations come from a Simplemaps CSV, processed with React hooks and D3’s `csv` loader, and the visualization is built with React and SVG.
AI-generated descriptionA 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.