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Fork of Assignment 9: Choropleth Map

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CChase Hall
Last edited Jul 22, 2022
Created on Jul 22, 2022

This choropleth map displays the percentage of adults with a bachelor’s degree or higher per U.S. county using a blue threshold color scale and a legend with tick marks. The code loads education data from a CSV and U.S. county boundaries from TopoJSON via `d3.json` and `d3.csv`, then renders paths with `d3.geoPath`. It uses `d3.scaleThreshold` and `d3.schemeBlues` for coloring, adds hover tooltips via SVG `<title>` elements, and overlays state boundaries with `topojson.mesh`. The visualization is built with D3 v5 and React, drawing to an SVG canvas.

AI-generated description

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

See also React Starter.

MIT Licensed

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