Sized Points on a Map

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Sized Points on a Map

✓ Published0🌍 Public

Last edited Sep 15, 2020

Created on Sep 15, 2020

This visualization displays global cities with populations over 50,000 as semi-transparent circles on a natural Earth projection. Circle radius encodes population magnitude using a square-root scale, making larger metropolitan areas visually prominent. The map renders country boundaries, graticules, and sphere outlines via d3.geoNaturalEarth1, d3.geoPath, and d3.geoGraticule, while React manages the SVG markup. City data originates from Simplemaps, loaded through d3.csv, and geographical boundaries come from World Atlas TopoJSON, processed with topojson.feature and topojson.mesh.

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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