Sized Points on a Map

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Sized Points on a Map

✓ Published0🌍 Public

Last edited Oct 2, 2020

Created on Oct 2, 2020

This interactive world map displays populated places with over 50,000 residents as sized points, using an orthographic projection that rotates and zooms when users click on individual countries. Built with React and D3, the visualization loads city coordinates from Simplemaps and country boundaries from World Atlas TopoJSON. The code uses d3.geoOrthographic, d3.geoPath, and topojson.feature to render landmasses, graticules, and water, while click interactions trigger transition.attrTween animations that interpolate projection rotation and scale to center the selected country.

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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