Sized Points on a Map

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Sized Points on a Map

✓ Published0🌍 Public

Last edited May 26, 2020

Created on May 25, 2020

This example displays cities with populations exceeding 50,000 as sized points on a world map, using the natural Earth projection. Country boundaries and graticules appear beneath the points. The visualization uses React with D3 v5, including `geoNaturalEarth1`, `geoPath`, and `geoGraticule`. City population data is loaded from a CSV via `d3.csv`, while land and interior boundaries come from World Atlas TopoJSON, processed with `topojson.feature` and `topojson.mesh`. Circle radii are scaled by population values.

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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