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Sized Points on a Map

✓ Published0🌍 Public
SSam
Last edited May 5, 2021
Created on May 5, 2021

This example displays a world map with circles sized by population for cities exceeding 50,000 residents. It uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to render landmasses, graticules, and interiors. City data is loaded from a CSV using `d3.csv`, with circle radii scaled by a square root scale (`d3.scaleSqrt`). The visualization is built with React and rendered as SVG, styled with soft teal, semi-transparent points.

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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