Points on a Map

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Points on a Map

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Last edited Oct 13, 2022

Created on Oct 13, 2022

This example displays a stylized world map with semi-transparent, scaled circles marking the population of cities. The visualization uses a Natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath` to render land masses, graticules, and country interiors from a TopoJSON world atlas. City coordinates are projected onto the SVG canvas, with circle radii determined by a square root scale (`d3.scaleSqrt`) based on population data loaded from a CSV. The React application manages data fetching with custom hooks, while the `Marks` component renders the geographic layers and city points.

AI-generated description

A stylized world map with points for cities.

MIT Licensed

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