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Fork of Assignment 9: Choropleth Map

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CChase Hall
Last edited Aug 1, 2022
Created on Aug 1, 2022

This choropleth map visualizes the percentage of adults with a bachelor’s degree or higher across U.S. counties, using a blue sequential color scale with a legend. It renders SVG paths via `d3.geoPath` and TopoJSON data from `us-10m.v1.json`, while county values are loaded from `education.csv` and mapped with `d3.map`. The color scale employs `d3.scaleThreshold` and `d3.schemeBlues[9]`, with county tooltips showing exact percentages and state boundaries drawn as white strokes.

AI-generated description

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

See also React Starter.

MIT Licensed

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Fork of Assignment 9: Choropleth Map

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