Fork of Sized Points on a Map
This visualization presents a world map where each circle represents a city with a population exceeding 50,000, sourced from the Simplemaps World Cities Database. The circles’ radii are scaled using a square-root scale (`scaleSqrt`) based on population, with a maximum radius of 15 pixels. The map uses `d3.geoNaturalEarth1` and `d3.geoPath` to render country landmasses and interiors from World Atlas TopoJSON, plus graticules for a polished look. The visualization is built with React and SVG, loading data via custom `useWorldAtlas` and `useCities` hooks that fetch JSON and CSV respectively.
AI-generated descriptionA 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.