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Points on a Map

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Points on a Map

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Yyyaaa1
Last edited Oct 10, 2019
Created on Oct 10, 2019
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A world map displays cities with population over 50,000 as semi-transparent teal dots, projected using the Natural Earth projection. The visualization layers graticules, land masses, and country borders from World Atlas TopoJSON, with city coordinates from a Simplemaps CSV. React manages the component state while D3’s `geoNaturalEarth1`, `geoPath`, and `geoGraticule` handle the geographic rendering, and `csv` and `json` load the external datasets.

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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.