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a1e3d378650b4e0d93cdb50615ed6612
Fork of Sized Points on a Map
A world map displays cities with populations over 50,000 as semi-transparent circles sized proportionally to population using a square-root scale. The visualization uses d3.geoNaturalEarth1 projection, d3.geoPath, graticules, and country boundaries from World Atlas TopoJSON, with city data from a Simplemaps CSV. React manages state and rendering, while d3.scaleSqrt maps population values to circle radii. The SVG output includes styled landmasses, sphere background, and interior borders.
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.