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Sized Points on a Map

✓ Published0🌍 Public
BBizmundo
Last edited Oct 14, 2019
Created on Oct 14, 2019

A world map displays cities with populations over 50,000 as semi-transparent teal circles, sized proportionally using a square-root scale. The visualization layers Natural Earth landmasses, graticules, and a sphere outline, rendered via `d3.geoPath` with a `geoNaturalEarth1` projection. City coordinates and population data come from a CSV fetched using `d3.csv`, while country boundaries use TopoJSON converted with the `feature` API. React manages component state, with the SVG marks generated through the `Marks` component, combining `d3.scaleSqrt` for radius scaling and `d3.max` for domain calculation.

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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