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Ss_cural@coloradocollege.edu
Last edited May 6, 2024
Created on May 5, 2024
Forked from Choropleth

This example combines a choropleth map and a scatter plot to explore country statistics. The map displays the urban population rate using a linear color scale, while the scatter plot positions life expectancy against GDP per capita, with point size encoding population and color encoding continent. Users can compare spatial and numerical patterns across countries. The visualization uses D3 v7’s `geoEqualEarth` projection, `geoPath`, `scaleLinear`, and `scaleOrdinal`, rendering as SVG with a tooltip on hover.

AI-generated description

A bare minimum HTML page demonstrating use of CSS and JavaScript.

See also React Starter.

MIT Licensed

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This example shows a linked choropleth map and scatter plot of country data, with a color scale mapping urbanization rates from green to grey and a scatter plot encoding life expectancy, GDP per capita, and population using position, color, and radius. The visualization supports interactivity by letting users select data points, which updates the map's color scale and the scatter plot's axes. It uses d3.geoEqualEarth for the map projection, d3.geoPath to render country shapes, and d3.scaleLinear for color, position, and size scales. Hovering over points triggers a tooltip via CSS transitions.

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